3-865-605-14(1)

Mini Hi-Fi
Component
System
Operating Instructions

Owner’s Record
The model and serial numbers are located on the rear panel. Record the serial
number in the space provided below. Refer to them whenever you call upon your
Sony dealer regarding this product.

Model No. _______________ Serial No. _______________

MHC-GRX9900 / GRX70 / GRX70J

MHC-GRX50 / R770
MHC-RXD9 / RXD80
MHC-RXD7
©1999 by Sony Corporation 1
 INFORMATION
WARNING This equipment has been tested and found to
comply with the limits for a Class B digital device,
To prevent fire or shock hazard, do not
pursuant to Part 15 of the FCC Rules. These limits
expose the unit to rain or moisture. are designed to provide reasonable protection
To avoid electrical shock, do not open the cabinet. against harmful interference in a residential
Refer servicing to qualified personnel only. installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may
Do not install the appliance in a confined space,
cause harmful interference to radio
such as a bookcase or built-in cabinet.
communications. However, there is no guarantee
that interference will not occur in a particular
installation. If this equipment does cause harmful
This appliance is classified interference to radio or television reception, which
as a CLASS 1 LASER can be determined by turning the equipment off and
product. The CLASS 1 on, the user is encouraged to try to correct the
LASER PRODUCT interference by one or more of the following
MARKING is located on measures:
the rear exterior. – Reorient or relocate the receiving antenna.
NOTICE FOR THE CUSTOMERS IN THE – Increase the separation between the equipment
and receiver.
U.S.A.
– Connect the equipment into an outlet on a circuit
different from that to which the receiver is
connected.
– Consult the dealer or an experienced radio/TV
technician for help.

CAUTION
You are cautioned that any changes or modifications
not expressly approved in this manual could void
your authority to operate this equipment.

NOTICE FOR THE CUSTOMERS IN

CANADA
This symbol is intended to alert the
user to the presence of uninsulated CAUTION:
“dangerous voltage” within the TO PREVENT ELECTRIC SHOCK, DO NOT USE
product’s enclosure that may be of THIS POLARIZED AC PLUG WITH AN
sufficient magnitude to constitute a EXTENSION CORD,
risk of electric shock to persons. RECEPTACLE OR OTHER OUTLET UNLESS THE
BLADES CAN BE FULLY INSERTED TO PREVENT
This symbol is intended to alert the BLADE EXPOSURE.
user to the presence of important
operating and maintenance (servicing)
This stereo system is equipped with the Dolby B-
instructions in the literature
type noise reduction system*.
accompanying the appliance.
* Manufactured under license from Dolby
Laboratories Licensing Corporation.
CAUTION DOLBY and the double-D symbol a are
The use of optical instruments with this product will trademarks of Dolby Laboratories Licensing
increase eye hazard. Corporation.

2
Table of Contents

Getting Started Sound Adjustment

Step 1: Hooking up the system ............ 5 Adjusting the sound ............................ 28
Step 2: Setting the time ......................... 7 Selecting the audio emphasis ............. 29
Step 3: Presetting radio stations .......... 8 Changing the spectrum analyzer
Saving the power in standby mode ... 10 display ............................................. 31
Selecting surround effects ................... 31
Adjusting the graphic equalizer ......... 32
Basic Operations
Making a personal audio emphasis file
Playing a CD ......................................... 11 .......................................................... 33
Recording a CD .................................... 13
Listening to the radio ........................... 14 Other Features
Recording from the radio .................... 15
Using the Radio Data System (RDS)* 34
Playing a tape ........................................ 16
Singing along: Karaoke ...................... 36
Recording from a tape ......................... 18
Falling asleep to music ........................ 38
Waking up to music ............................. 39
The CD Player Timer-recording radio programs ....... 40
Using the CD display ........................... 19
Playing the CD tracks repeatedly ...... 20 Optional AV components
Playing the CD tracks in random
Connecting audio components .......... 41
order ............................................... 21
Connecting a VCR ................................ 43
Programming the CD tracks ............... 22
Connecting the surround speakers .... 43
Playing CDs without interruption ..... 23
Connecting outdoor antennas ............ 44

The Tape Deck

Additional Information
Recording on a tape manually ........... 24
Precautions ............................................ 45
Recording a CD by specifying track
Troubleshooting ................................... 46
order ................................................ 25
Specifications ........................................ 49
Parts identification ............................... 54
DJ Effects
Index ........................................ Back cover
Looping part of a CD ........................... 27
Flashing part of a CD ........................... 27 * European model only

3
 Using this manual
The instructions in this manual are for MHC-GRX9900/GRX70/GRX70J/GRX50/R770/RXD9/
RXD80/RXD7. The MHC-RXD80 is the model used for illustration purposes. Otherwise, the
model name is indicated in the illustrations. The shape of the buttons on the MHC-GRX9900/
RXD9 is different from that of the MHC-GRX70, but the locations of the buttons are the same.
Any differences in operation are clearly indicated in the text, for example,
“MHC-GRX70 only” or “Europearn model only”.

MHC-GRX70/GRX70J/GRX50/R770/ MHC-GRX9900/RXD9
RXD80/RXD7

* This part of the MHC-GRX50/R770/RXD7 is different from other models as below:

MHC-GRX50/R770/RXD7 MHC-GRX70/GRX70J/RXD80
MHC-GRX9900/RXD9
EDIT
DIRECTION REPEAT FILE GEQ P FILE
TUNER MEMORY STEREO/MONO EFFECT SELECT CONTROL MEMORY

PLAY MODE FILE

DOLBY NR SELECT
PTY** EDIT PLAY MODE REPEAT
DIRECTION DOLBY NR STEREO/MONO
TUNER MEMORY PTY**

** “PTY” is for European model only.

4
 Getting Started

Step 1: Hooking up the system

Do the following procedure 1 to 4 to hook up your system using the supplied cords and
accessories.
AM loop antenna

FM antenna

2
3

4
Front speaker (Right) Front speaker (Left)

Notes
1 Connect the speakers. • Keep the speaker cords away from the
Connect the speaker cords of front antennas to prevent noise.
speakers to the SPEAKER jacks as below. • The type of speakers supplied vary
according to the model you purchased
For the front speakers with jacks,
(see “Specifications” on page 52).
connect the speaker cords to the
speakers in the same way.
continued
Insert only the stripped portion.
R
+
L
+

Red/ –
Solid (‘)

Black/
Stripe (’)

5
 Step 1: Hooking up the system
(continued) 3 For models with a voltage selector,
set VOLTAGE SELECTOR to
position of your local power line
2 Connect the FM/AM antennas. voltage.
Set up the AM loop antenna, then
connect it. VOLTAGE SELECTOR
Jack type A
Extend the FM lead
- 240V
AM loop antenna antenna horizontally. 230

0V
12
FM
75

0V

22
AM

4 Connect the power cord to a wall

outlet.
The demonstration appears in the
display. When you press , the
system turns on and the demonstration
automatically ends.
If the supplied adapter on the plug does
Jack type B not fit your wall outlet, detach it from
Extend the FM lead the plug (only for models equipped with
antenna horizontally. an adapter).
AM loop antenna
FM
CO 75
AX
IAL

To connect optional AV
components
AM
See page 41.

To deactivate the demonstration

When you set the time (Step 2: Setting the
time), the demonstration is deactivated.
To activate/deactivate the demonstration
again, press DISPLAY (MHC-RXD9/RXD80/
RXD7/R770) or DEMO (STANDBY)
(MHC-GRX9900/GRX70/GRX70J/GRX50)
while the system is off.

6
To attach the front speaker pads
Attach the supplied front speaker pads to the Step 2: Setting the
bottom of the speakers to stabilize the
speakers and prevent them from slipping. time
You must set the time before using the timer
functions.
The clock is on a 24-hour system for the
European model, and a 12-hour system for
other models.
The 24-hour system model is used for
illustration purposes.

DISPLAY 2,4 3,5

Inserting two size AA (R6)

batteries into the remote

]
}
}
]

Tip
With normal use, the batteries should last for about
six months. When the remote no longer operates
the system, replace both batteries with new ones.

Note
If you do not use the remote for a long period of
time, remove the batteries to avoid possible damage
from battery leakage. 1
When carrying this system 1 Press CLOCK/TIMER SET.
Do the following to protect the CD The hour indication flashes.
mechanism.
1 Press FUNCTION repeatedly until “CD”
appears in the display.
2 Hold down LOOP and press so that
“LOCK” appears in the display.
2 Turn the jog dial to set the hour.

continued

7
 Step 2: Setting the time
(coninued) Step 3: Presetting
3 Press ENTER/NEXT.
radio stations
The minute indication flashes.
You can preset the following number of
stations:
– 2 band model: 20 for FM, 10 for AM.
– 3 band model: 20 for FM, 10 for MW, and
10 for SW, or 20 for FM, 10 for AM and 5
4 Turn the jog dial to set the minute. for UKV, depending on the model you
purchased.

5 Press ENTER/NEXT. (Power) Jog dial 4 1

The clock starts working.

Tip
If you’ve made a mistake, start over from step 1.
To change the time
The previous explanation shows you how to
set the time while the power is off. To change
the time while the power is on, do the
following:
1 Press CLOCK/TIMER SET.
2 Turn the jog dial to select SET CLOCK.
3 Press ENTER/NEXT.
4 Perform steps 2 through 5 above.
Note
The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.

3 2

8
 To tune in a station with a weak
1 Press TUNER/BAND repeatedly
until the band you want appears in signal
the display. Press + or – repeatedly in step 2 to tune in the
station manually.
The bands you can receive vary
depending on the model you purchased. To set another station to the exist
Be sure to check which bands you can preset number
receive.
Start over from step 1. After step 3, turn the
Every time you press this button, the
jog dial to select the preset number you want
band changes as follows: to store the other station.
2 band model:
You can add a new preset number after the
FM ˜ AM
last preset number.
3 band model:
FM n MW n SW To erase a preset station
n

1 Keep pressing TUNER MEMORY until a

or preset number appears in the display.
FM n AM n UKV*
n

* “STEREO PLUS” is displayed when

you select UKV.
2 Turn the jog dial to select the preset
2 Press and hold + or – until the number you want to erase.
frequency indication starts to Select “ALL ERASE” when you want to
erase all the preset stations.
change, then release.
3 Press ENTER/NEXT.
Scanning stops when the system tunes in
“COMPLETE” appears.
a station. “TUNED” and “STEREO” (for
When you erase a preset number, the preset
a stereo program) appear.
number decreases by one and all preset
numbers following the erased one are
renumbered.

To change the AM tuning interval

(Except for the European and Middle
Eastern models)
3 Press TUNER MEMORY.
The AM tuning interval is factory set to 9 kHz
A preset number appears in the display. (10 kHz in some areas). To change the AM tuning
The stations are stored from preset interval, tune in any AM station first, then turn off
number 1. the power. While holding down the ENTER/NEXT
Preset number button, turn the power back on. When you change
the interval, AM preset stations will be erased. To
reset the interval, repeat the same procedure.

Tip
The preset stations are retained for half a day even if
you unplug the power cord or if a power failure
occurs.

4 Press ENTER/NEXT.
The station is stored.

5 Repeat steps 1 to 4 to store other

stations.

9
 Tips
Saving the power in • Each time you press POWER SAVE/DEMO in the
Power Saving Mode, the display switches between
standby mode •
the Power Saving Mode and the demo mode.
indicator and timer indicator (when the
(For MHC-RXD9/RXD80/RXD7/R770) timer is set) light up even in the Power Saving
You can lower the power consumption to a Mode.
minimum (Power Saving Mode) and save • The timer works in the Power Saving Mode.
energy in the standby mode. Notes
• You cannot set the time in the Power Saving
POWER SAVE Mode.
(Power) /DEMO • One Touch Play function does not work in the
Power Saving Mode.
To cancel the Power Saving Mode
Press DISPLAY.
The clock display appears.

DISPLAY

/ Press POWER SAVE/DEMO when

the power is off.
The system switches to the Power Saving
Mode and the clock display disappears.
The system is powering on/off by
pressing .

10
 Basic Operations

Playing a CD 1 Press § and place up to two CDs on

the disc tray.
— Normal play If a disc is not placed properly it will not
be recognized.
You can play up to three CDs in a row.
With the label
DISC SKIP/ side up. When
EX-CHANGE you play a single
CD, place it on
(Power) p 2 CD
(P 1 the inner circle
of the tray.

To insert a third disc, press DISC SKIP/

EX-CHANGE to rotate the disc tray.

2 Press one of the DISC 1~3 buttons.

The disc tray closes and play starts.
If you press CD (P (or CD ( on the
remote) when the disc tray is closed,
play starts from the CD loaded on the
tray whose button is lit green.
Track number Playing time

Basic Operations
Disc tray number
PLAY = + 0 ) VOLUME
MODE

CD ( continued
P
p
=+
0)

VOL +/–
√

11
 Playing a CD (continued) Tips
• Pressing CD (P when the power is off
automatically turns the power on and starts CD
To Do this playback if there is a CD in the tray (One Touch
Play). When the system is in the Power Saving
Stop play Press p. Mode, the One Touch Play function does not
Pause Press CD (P (P on the work.
remote). Press again to resume • You can switch from another source to the CD
play. player and start playing a CD just by pressing
Select a track During play or pause, turn the CD (P or the DISC 1~3 buttons (Automatic
Source Selection).
jog dial clockwise (to go
• If there is no CD in the player, “CD NO DISC”
forward) or counterclockwise
appears in the display.
(to go back) and release it
• When a disc tray holding a CD is selected (or
when you reach the desired
playing), the DISC 1~3 button for that tray lights
track. (Or press + (to go
green. When a disc tray holding a CD is not
forward) or = (to go back) selected, the DISC 1~3 button for that tray lights
on the remote.) orange. When all disc trays are empty, the DISC
Find a point in Press and hold down ) or 1~3 buttons all light green.
a track 0 during play and
release it at the desired point.
Select a CD Press a DISC 1~3 button or
in stop mode DISC SKIP/EX-CHANGE.
Play only the Press PLAY MODE
CD you have repeatedly until “1 DISC”
selected appears.
Play all CDs Press PLAY MODE repeatedly
until “ALL DISCS” appears.
Remove the CD Press §.
Exchange other Press DISC SKIP/
CDs while EX-CHANGE.
playing
Adjust the Turn VOLUME (or press VOL
volume +/– on the remote).

12
Recording a CD 2 Press § and place a CD.
Then press again to close the disc tray.
— CD Synchro Recording If the indicator for the tray you want to
record is not lit green, press DISC SKIP/
EX-CHANGE repeatedly so that it lights
The CD SYNC button lets you record from a green.
CD to a tape easily. You can use TYPE I
(normal) or TYPE II (CrO2) tapes. The
recording level is adjusted automatically. With the label
side up. When
DISC SKIP/ you play a single
EX-CHANGE CD, place it on
the inner circle
CD of the tray.
(Power) DOLBY NR (P 2
3 Press CD SYNC.
Deck B stands by for recording and the
CD player stands by for playback. The
indicator on TAPE B ( (for front side)
lights up.

4 Press DIRECTION repeatedly to

Basic Operations
select A to record on one side.
Select ß (or RELAY) to record on
both sides.

5 Press REC PAUSE/START.

Recording starts.

To stop recording
Press p.
4 p
5 31 Tips
• If you want to record from the reverse side, press
1 Press § and insert a recordable tape TAPE B 9 to light its indicator after pressing CD
into deck B. SYNC.
• When you record on both sides, be sure to start
With the side from the front side. If you start from the reverse
you want to
side, recording stops at the end of the reverse side.
record facing
forward • When you want to reduce the hiss noise in low-
level high-frequency signals, press DOLBY NR so
that “DOLBY NR” appears after pressing CD
SYNC.

Note
You cannot listen to other sources while recording.

13
 Listening to the radio 1 Press TUNER/BAND repeatedly
until the band you want appears in
–– Preset Tuning the display.
The bands you can receive vary
depending on the model you purchased.
Preset radio stations in the tuner's memory
Be sure to check which bands you can
first (see “Step 3: Presetting radio stations”).
receive.
Every time you press the button, the
(Power) 2 1 band changes as follows:
2 band model:
FM ˜ AM
3 band model:
FM n MW n SW

n
or
FM n AM n UKV*

n
* “STEREO PLUS” is displayed when
you select UKV.

2 Turn the jog dial (or press = or

+ on the remote) to tune in the
desired preset station.
Turn counter- = + Turn clockwise
clockwise (or press +
(or press = on the remote)
on the remote) for higher
STEREO/MONO VOLUME for lower preset preset numbers.
numbers.
Preset number* Frequency

TUNER/BAND

* When only one station is preset, “ONE

PRESET” appears in the display.
=+

To Do this
Turn off the radio Press .
Adjust the volume Turn VOLUME (or press
VOL +/– on the remote).

VOL +/–
√

14
To listen to non-preset radio
stations Recording from the
Use manual or automatic tuning in step 2.
For manual tuning, press + or – repeatedly. radio
For automatic tuning, press and hold + or –.

Tips You can record the radio program on a tape

• Pressing TUNER/BAND when the power is off by calling up a preset station. You can use
automatically turns the power on and tunes to the TYPE I (normal) or TYPE II (CrO2) tapes. The
last received station (One Touch Play). When the recording level is automatically adjusted.
system is in the Power Saving Mode, the One
Touch Play function does not work.
• You can switch from another source to the radio (Power) DOLBY NR
1
just by pressing TUNER/BAND (Automatic
Source Selection).
• When an FM program is noisy, press
STEREO/MONO so that “MONO” appears in the
display. There will be no stereo effect, but the
reception will improve. Press the button again to
restore the stereo effect.
• To improve broadcast reception, reorient the
supplied antennas.

Basic Operations
5 2 p
4,6 3
1 Press TUNER/BAND to select the
band you want.

2 Turn the jog dial to tune in a preset

station.
= +

Turn counter- Turn clockwise

clockwise for for higher
lower preset preset numbers.
numbers.

Preset number Frequency

continued

15
 Recording from the radio
(continued) Playing a tape
3 Press § and insert a recordable tape You can use any type of tape, TYPE I
into deck B. (normal), TYPE II (CrO2) or TYPE IV (metal) ,
With the side
since the deck automatically detects the tape
you want to type. You can also use the jog dial’s AMS
record facing functions to quickly search for songs you
forward want to hear. To select either deck A or B,
press DECK A ( or DECK B ( on the
remote.

4 Press REC PAUSE/START. (Power) 3 p

Deck B stands by for recording.

5 Press DIRECTION repeatedly to

select A to record on one side.
Select ß (or RELAY) to record on
both sides.

6 Press REC PAUSE/START.

Recording starts.

To stop recording
Press p.

Tips
• If you want to record from the reverse side, press
TAPE B 9 to light its indicator after pressing
REC PAUSE/START in step 4.
DOLBY
• When you record on both sides, be sure to start
from the front side. If you start from the reverse 1 NR
0 ) VOLUME
1
side, recording stops at the end of the reverse side.
• To record non-preset stations, use + and – in step 2
2 =+

to tune in the desired station manually.

• When you want to reduce the hiss noise in low-
level high-frequency signals, press DOLBY NR so
that “DOLBY NR” appears after pressing REC
PAUSE/START in step 4. p
• If noise is heard while recording from the radio, =+
move the respective antenna to reduce the noise.
0)
DECK A (
DECK B (

VOL +/–
√

16
 Tips
1 Press § and insert a recorded tape • Pressing TAPE A (or TAPE B) ( or 9 when the
in deck A or B. power is off automatically turns the power on and
starts tape playback if there is a tape in the deck
With the side (One Touch Play). When the system is in the
you want to Power Saving Mode, the One Touch Play function
play facing does not work.
forward • You can switch from another source to the tape
deck just by pressing TAPE A (or TAPE B) ( or
9 (Automatic Source Selection).
• When you want to reduce the hiss noise in low-
level high-frequency signals, press DOLBY NR so
2 Press DIRECTION repeatedly to that “DOLBY NR” appears.
select A to play one side. Select
ß* to play both sides. Searching for the beginning of a
To play both decks in succession, select track (AMS*)
RELAY (relay play).**
During playback, turn the jog dial the same
direction as the 9 or ( indicator to go
3 Press TAPE A (or TAPE B) ( forward. Turn the opposite direction to go
(DECK A (or DECK B) ( on the back. (Or press = or + on the remote.)
remote). The search direction, + (forward) or – (back),
Press TAPE A (or TAPE B) 9 to play and number of songs being skipped (1~9)
the reverse side. (Press DECK A (or appear in the display.
DECK B) ( again on the remote to play Example: searching forward 2 songs

Basic Operations
the reverse side.) The tape starts playing.

* AMS (Automatic Music Sensor)

* The deck stops automatically after
repeating the sequence five times. Notes
** Relay play always follows the following The AMS function may not operate correctly under
sequence: the following circumstances:
Deck A (front side), Deck A (reverse side), – When the unrecorded space between songs is less
Deck B (front side), Deck B (reverse side). than 4 seconds long.
– If completely different information is recorded on
the left and right channels.
To Do this – When there are continuous sections of extremely
Stop play Press p. low level or low frequency sound (like those of a
baritone sax).
Fast-forward Press 0 or ).
– When the unit is placed near a television. (In this
Rewind Press 0 or ). case, we recommend moving the unit farther away
Remove the cassette Press §. from the television or turning off the television.)
Adjust the volume Turn VOLUME (or press
VOL +/– on the remote).

17
 Recording from a 3 Press DIRECTION repeatedly to
select A to record on one side.
tape Select ß (or RELAY) to record on
both sides.
— High-speed Dubbing
You can use TYPE I (normal) or TYPE II 4 Press REC PAUSE/START.
(CrO2) tapes. The recording level is Dubbing starts.
automatically adjusted.

To stop dubbing
(Power) DOLBY NR 2 Press p.

Tips
• When you dub on both sides, start recording from
the front side. If you record from the reverse side,
recording stops at the end of the reverse side.
• If you set DIRECTION to ß when the tapes you
use have different lengths, the tape in each deck
reverses independently. If you select RELAY, the
tapes in both decks reverse together.
• You don’t have to set DOLBY NR, since the tape in
deck B is automatically recorded in the same state
as the tape in deck A.

1 3 p
4 1
1 Press § and insert a recorded tape
in deck A and a recordable tape in
deck B.
With the side
you want to
play/record
facing forward

2 Press HI-DUB.
Deck B stands by for recording.

18
 The CD Player
/ Press DISPLAY.
Using the CD display Each time you press the button during
normal playback or in the stop mode, the
You can check the remaining time of the display changes as follows:
current track or that of the CD. During normal playback
When a CD TEXT disc is loaded, you can n Playing time on the current track
check the information stored on the disc, such µ
as the disc titles or artist names. When the
Remaining time on the current track
unit detects CD TEXT discs, the “CD TEXT”
indication appears in the display. µ
Remaining time on current CD (1 DISC
mode) or “--.--” display (ALL DISCS
(Power)
mode)
µ
Title name of the current track*
µ
Clock display (for eight seconds)
µ
Effect (P FILE) name or “EFFECT ON
(OFF)”

In the stop mode

n Title name of the CD*
µ
Artist information*
µ
Total number of tracks and total playing
time
µ
Clock display (for eight seconds)
DISPLAY µ
Effect (P FILE) name or “EFFECT ON
(OFF)”

* With CD TEXT discs only (certain characters

cannnot be displayed). When the disc contains
more than 20 tracks, CD TEXT is not displayed
from track 21 on.

19
 To cancel Repeat Play
Playing the CD tracks Press REPEAT so that “REPEAT” or
“REPEAT 1” disappears from the display.
repeatedly
–– Repeat Play

This function lets you repeat a single CD or

all CDs in normal play, Shuffle Play and
Program Play.

(Power) PLAY MODE

REPEAT

/ Press REPEAT during playback

until “REPEAT” appears in the
display.
Repeat Play starts. Do the following
procedure to change the repeat mode.

To repeat Press
All the tracks on PLAY MODE repeatedly
the current CD until “1 DISC”
appears in the display.
All the tracks on PLAY MODE repeatedly
all CDs until “ALL DISCS” appears
in the display.
Only one track REPEAT repeatedly until
“REPEAT 1” appears in the
display while playing the
track you want to repeat.

20
 To cancel Shuffle Play
Playing the CD tracks Press PLAY MODE repeatedly until
“SHUFFLE” or “PROGRAM” disappears
in random order from the display. The tracks continue playing
in their original order.
–– Shuffle Play
To select a desired CD
You can play all the tracks on one CD or all Press DISC 1~3.
CDs in random order.
Tips
(Power) DISC 1~3 3 • You can start Shuffle Play during normal play by
pressing PLAY MODE repeatedly to select
“SHUFFLE”.
• To skip a track, turn the jog dial clockwise (or
press + on the remote).

1 2 Jog dial

1 Press FUNCTION repeatedly until

“CD” appears in the display, then
place a CD.

2 Press PLAY MODE repeatedly until

“1 DISC SHUFFLE ” or “ALL DISCS
SHUFFLE” appears in the display.
“ALL DISCS” shuffles all the CDs in the
player. “1 DISC” shuffles the CD whose
DISC indicator is green.

3 Press CD (P.
All the tracks play in random order.

21
 Programming the CD 1 Press FUNCTION repeatedly until
“CD” appears in the display, then
tracks place a CD.
–– Program Play
2 Press PLAY MODE repeatedly until
You can make a program of up to 32 tracks “PROGRAM” appears in the
from all the CDs in the order you want them display.
to be played.

3 7 3 Press one of the DISC 1~3 buttons to

(Power) select a CD.

4 Turn the jog dial until the desired

track appears in the display.
Total playing time
Disc number (including selected track)

Track number

5 Press ENTER/NEXT.
The track is programmed. The program
step number appears, followed by the
total playing time.

1 2 p
4 5 6 To program additional tracks,
repeat steps 3 to 5.
Skip step 3 to select tracks from the
same disc.

CD ( 7 Press CD (P.
All the tracks play in the order you
p selected.
=+
CHECK
CLEAR

VOL +/–
√

22
To cancel Program Play
Press PLAY MODE repeatedly until Playing CDs without
“PROGRAM” or “SHUFFLE” disappears
from the display. interruption
To Press –– Non-Stop Play
Check the CHECK on the remote
program repeatedly. After the last You can play CDs without pausing between
track, “CHECK END” tracks.
appears.
Clear a track from
the end
CLEAR on the remote in
stop mode.
(Power) 3
Clear a specific CHECK on the remote
track repeatedly until the
number of the track to be
erased lights up, then press
CLEAR.
Add a track to the 1 Select the disc tray with a
program DISC 1~3 button.
2 Select the track by
turning the jog dial.
3 Press ENTER/NEXT.
Clear the entire p once in stop mode or
program twice while playing.

Tips
• The program you made remains in the CD player
even after it has been played back. Press CD (P
to play the same program again.
• If “--.--” appears instead of the total playing time
during programming, this means:
– you have programmed a track number
which exceeds 20.
1 2
– the total playing time has exceeded 100 minutes.

1 Press FUNCTION repeatedly until

“CD” appears in the display, then
place a CD.

2 Press NON-STOP to light the

indicator.
“NON-STOP PLAY” appears in the
display.

3 Press CD (P.

To cancel Non-Stop Play

Press NON-STOP so that the indicator goes
out and “NON-STOP OFF” appears in the
display.

23
 The Tape Deck

Recording on a tape 4 Press DIRECTION repeatedly to

select A to record on one side.
manually Select ß (or RELAY) to record on
both sides.
You can record from CD, tape, or radio as
you like. For example, you can record just the 5 Press REC PAUSE/START.
songs you want or record from the middle of Recording starts.
the tape. The recording level is adjusted
automatically. 6 Start playing the source to be
recorded.
(Power) DOLBY NR

To Press
Stop recording p.
Pause recording REC PAUSE/START.

Tips
• If you want to record from the reverse side, press
TAPE B 9 to light its indicator after pressing
REC PAUSE/START in step 3.
• When you want to reduce the hiss noise in low-
level high-frequency signals, press DOLBY NR so
that “DOLBY NR” appears after pressing REC
PAUSE/START in step 3.
• When recording from a CD, you can use the jog
dial to select tracks during rec pause mode (after
pressing REC PAUSE/START in step 3 and before
pressing again in step 5).

2 4 p 3,5 1

1 Insert a recordable tape into deck B.

2 Press FUNCTION repeatedly until

the source you want to record (e.g.,
CD) appears.

3 Press REC PAUSE/START.

Deck B stands by for recording. The
indicator on TAPE B ( (for front side)
lights up.

24
Recording a CD by 1 Place a CD and insert a recordable
tape into deck B.
specifying track order
— Program Edit
2 Press FUNCTION repeatedly until
“CD” appears in the display.
You can record tracks from all the CDs in the
order you want. When programming, make 3 Press PLAY MODE repeatedly until
sure the playing times for each side do not “PROGRAM” appears in the
exceed the length of one side of the tape. display.

(Power) 4 p 1 4 Press one of the DISC 1~3 buttons to

select a CD.

5 Turn the jog dial until the desired

track appears in the display.
Total playing time
Disc number (including selected track)

Track number

6 Press ENTER/NEXT.
The track is programmed. The program
step number appears, followed by the
total playing time.

11, EDIT 5 6 10 1 7 To program additional tracks to be

2 3, DOLBY NR 12 recorded on side A, repeat steps 4 to
6.
Skip step 4 to select tracks from the same
disc.
8
8 Press P on the remote to insert a
pause at the end of side A.
“P” appears in the display and the total
CHECK
playing time resets to “0.00” in the
display.

continued

25
 Recording a CD by specifying track Selecting tape length
order (continued)
automatically
9 Repeat steps 5 and 6 for tracks from —Tape Select Edit
the same disc or steps 4 to 6 for
tracks from another disc to program You can check the most suitable tape length
the remaining tracks to be recorded for recording a CD. Note that you cannot use
on side B. Tape Select Edit for discs containing over 20
tracks.

10 Press CD SYNC.
Deck B stands by for recording and the
1 Insert a CD.
CD player stands by for playback. The
indicator on TAPE B ( (for front side) 2 Press FUNCTION repeatedly until
lights up. “CD” appears in the display.

11 Press DIRECTION repeatedly to 3 Press EDIT once, so that “EDIT”

select A to record on one side. flashes.
Select ß (or RELAY) to record on The required tape length for the
both sides. currently selected CD appears, followed
by the total playing time for side A and
12 Press REC PAUSE/START. side B respectively.
Recording starts.
Note
To stop recording You cannot use this function after programming.
In order to use this function, you must first cancel
Press p. the program by pressing PLAY MODE repeatedly
until “PROGRAM” or “SHUFFLE” disappears from
To check the order the display.
Press CHECK on the remote repeatedly. After
the last track, “CHECK END” appears.

To cancel Program Edit

Press PLAY MODE repeatedly until
“PROGRAM” or “SHUFFLE” disappears
from the display.

Tip
When you want to reduce the hiss noise in low-level
high-frequency signals, press DOLBY NR so that
“DOLBY NR” appears after pressing CD SYNC.

26
 DJ Effects

Looping part of a CD Flashing part of a CD

— Loop — Flash

With the loop function, you can repeat part of With the flash function, you can “flash” the
a CD during playback. This lets you create CD sound during playback. This lets you
original recordings. create original recordings.

(Power) (Power)

LOOP Jog dial FLASH Jog dial

/ Press and hold LOOP during / Press and hold FLASH during
playback at the point you want to playback at the point you want to
start the Loop function, and release start the Flash function, and release
to resume normal play. to resume normal play.

To adjust the loop length To adjust the flash length

Turn the jog dial while holding LOOP (or Turn the jog dial while holding FLASH (or
press SELECT > or . while holding LOOP press SELECT > or . while holding FLASH
on the remote) to select different loop lengths on the remote) to select different flash lengths
(LOOP 1~20). (FLASH 1~20).

To use LOOP and FLASH together

Press and hold both LOOP and FLASH at the
same time.

Notes
• The loop and flash length cannot be adjusted
during this operation. Adjust the loop and flash
lengths independently beforehand if necessary.
• To record the flash effect, use the analog (MD
OUT) connections or this unit’s tape deck.
27
 Sound Adjustment
For the most suitable bass sound
Adjusting the sound (SYNC BASS)
Press SYNC BASS.
The bass frequencies of the music you are
You can reinforce the bass, create a more listening to are measured and those areas
powerful sound, and listen with headphones. with heavy bass tones are effectively
reinforced. The indicator SYNC BASS H or
(Power) GROOVE SYNC BASS L lights up according to the areas
SYNC BASS
with heavy bass tones. Press SYNC BASS
again to return to the previous level.

For a powerful sound (GROOVE)

Press GROOVE. The volume switches to
power mode, DBFB is automatically set to full
strength, the equalizer curve changes, and
GROOVE button lights up. Press GROOVE
again to return to the previous volume.

Notes
• With some songs, the music will sound distorted
when you use the DBFB system with the sound
effect if the bass is too strong. Set the DBFB to
“ ” or “OFF”, or cancel the sound effect
(see page 30).
• Cancelling GROOVE sets DBFB to “ ” and
flattens the equalizer curve. To cancel the DBFB
level, press DBFB until the indication disappears.

FILE DBFB To listen through the headphones

SELECT Connect the headphones to PHONES jack. No
sound will come from the speakers.
To reinforce bass (DBFB)
Press DBFB*.
Every time you press the button, the display
changes as follows:
n DBFB NORMAL ( )
µ
DBFB HIGH ( )
µ
DBFB OFF (off)

* DBFB = Dynamic Bass Feedback

28
 MHC-GRX50/RXD7/R770
Selecting the audio
(Power) 1 2 3 SYNC EQ
emphasis
The audio emphasis menu lets you select the
sound characteristic according to the sound
you are listening to.
Besides, you can also enjoy audio emphasis
using the synchronized equalizer function.
When using this function, the system
switches the equalizer according to the genre
automatically.

Selecting the effect from

the music menu
MHC-GRX9900/GRX70/GRX70J/RXD9/
RXD80

(Power) 1 2 3 SYNC EQ

v/V
◊

ON/OFF
√

1 Press FILE SELECT.

The last effect chosen appears in the
display.

EFFECT 2 Use the jog dial to select the preset

you desire.
The preset name appears in the display.
See the chart “Music menu options”.
v/V
◊
3 Press ENTER/NEXT.

ON/OFF
√

continued

29
 Selecting the audio emphasis For MHC-GRX50/RXD7/R770
(continued)
Effect For
To cancel the effect ROCK Standard music sources
POP
Press EFFECT (for MHC-GRX9900/GRX70/
JAZZ
GRX70J/RXD9/RXD80 only) or ON/OFF on
DANCE
the remote repeatedly so that “EFFECT OFF” SOUL
appears in the display.
ACTION Soundtracks and special
Music menu options ROMANCE listening situations
“ ” appears if you select an effect DRAMA
SPORTS
with surround effects.
FLAT Listening without effects
For MHC-GRX9900/GRX70/GRX70J/
RXD9/RXD80
Using the synchronized
Effect For
ROCK Standard music sources
equalizer
POP You can set the audio emphasis to change
JAZZ
automatically according to the beat and
DANCE
tempo at the music.
SOUL
ACTION Soundtracks and special
ROMANCE listening situations / Press SYNC EQ.
SF The indicator blinks while measuring the
DRAMA beat and tempo of the source. Once
SPORTS measured, the indicator lights up in the
SHOOTING Video games display.
RACING
RPG
BATTLE
ADVENTURE SYNC EQ classifies the music as follows:
P FILE 1~5 Personal file* Beat Density LO (Low)
HI (High)
* The personal file function lets you store your own Beat Strength SMOOTH
effects (see “Making a personal audio emphasis
MEDIUM
file” on page 33).
STRONG

To cancel the synchronized

equalizer
Press SYNC EQ again. The indicator turns off.
The synchronized equalizer is canceled also
when:
— cancel the effect
— select the effect from the music menu
— select the surround effect
— adjust the graphic equalizer
— sing along (karaoke).

Notes
• SYNC EQ does not work in KARAOKE mode.
• For MHC-GRX9900/GRX70/GRX70J/RXD9/
RXD80, P FILE MEMORY does not work in SYNC
EQ mode.
• The names of classification are not related with the
genre of the music source.
30
Changing the Selecting surround
spectrum analyzer effects
display You can enjoy surround effects.

You can enjoy changing the display while

(Power)
listening to the music.

(Power)

SURROUND

SPECTRUM
/ Press SURROUND repeatedly to
ANALYZER select the surround effect you
desire.
Every time you press the button, the
/ Press SPECTRUM ANALYZER. display changes as follows:
Every time you press the button, the SURROUND ON ( )
˜

display changes as follows:

IMAGE PATTERN SURROUND OFF (off)
˜

NORMAL PATTERN
Tip
For MHC-GRX9900/GRX70/GRX70J/RXD9/
RXD80, if you want to memorize the effect, store it
into a personal file (see “Making a personal audio
emphasis file”).

Note
When you choose other sound effects, the surround
effects will be canceled.

31
 Adjusting the graphic 4 Turn the jog dial to adjust level.

equalizer
(MHC-GRX9900/GRX70/GRX70J/RXD9/
RXD80 only)
You can adjust the sound by raising or
lowering the levels of specific frequency 5 Repeat steps 3 and 4.
ranges.
Before operation, first select the audio 6 Press ENTER/NEXT when finished.
emphasis you want for your basic sound.

Note
(Power) 4 6 If you choose another menu audio emphasis (other
than “EFFECT OFF”), the adjusted sound effect is
lost. To retain the adjusted sound effect for future
use, store it in a personal file. (See “Making a
personal audio emphasis file”.)

2 3
1 Select the audio emphasis you want
for your basic sound (see “Selecting
the audio emphasis” on page 29).

2 Press GEQ CONTROL.

3 Press + or – repeatedly to select a

frequency band.

32
Making a personal 3 Use the jog dial to select the file
number (P FILE 1~5) where you
audio emphasis file want to store the sound effect.
— Personal file
4 Press ENTER/NEXT.
(MHC-GRX9900/GRX70/GRX70J/RXD9/
The adjusted sound effects are stored
RXD80 only) under the selected file number. The
You can create a personal file of audio settings previously stored at this
patterns (surround effect and graphic memory location are erased and
equalizer) and store them in the memory of replaced by the new settings.
the unit. Later, call up an audio pattern to
play a favorite tape, CD, or radio program.
Create up to five audio files. To call up the personal file
Before operation, first select the audio 1 Press FILE SELECT.
emphasis you want for your basic sound. 2 Use the jog dial to select the personal file
you desire.
(Power) 2 3 4 3 Press ENTER/NEXT.

FILE SELECT

1 Obtain the sound effect you want by

using the graphic equalizer and
surround effect.

2 Press P FILE MEMORY.

The personal file number appears in the
display.

33
 Other Features
To check the RDS information
Using the Radio Data Each time you press DISPLAY, the display
changes as follows:
System (RDS)
n Station name*
(For European model only) µ
Frequency
What is the Radio Data System?
µ
Radio Data System (RDS) is a broadcasting
service that allows radio stations to send Program type*
additional information along with the regular µ
program signal. This tuner offers convenient Clock display
RDS features like station name display and µ
location of stations by program type. RDS is Effect (P FILE) name or
available only on FM stations.* “EFFECT ON (OFF)”
Note * If the RDS broadcast is not received, the station
name and program type may not appear in the
RDS may not work properly if the station you are
display.
tuned to is not transmitting the RDS signal properly
or if the signal strength is weak.
* Not all FM stations provide RDS service, nor do
they provide the same type of services. If you are
not familiar with the RDS system, check with your
Locating a station by
local radio stations for details on RDS services in program type (PTY)
your area.
You can locate a station you want by selecting
Receiving RDS broadcasts a program type. The unit tunes in the type of
programs currently being broadcast from the
RDS stations stored in the tuner’s preset
/ Simply select a station from the FM memory.
band. When you tune in a station
that provides RDS services, the (Power)
station name appears in the display.

1 2,3,4,5

34
 SCIENCE
1 Press PTY while listening to the
Programs about the natural sciences.
radio.
VARIED
2 Turn jog dial to select the program Programs containing celebrity
type you want. See the “List of interviews, panel games, and comedy.
program types” section below. POP
Popular music programs.
3 Press ENTER/NEXT. ROCK
The unit starts searching the preset RDS Rock music programs.
stations (“SEARCH” and the selected
program type are shown alternately in EASY MUSIC
the display). Easy listening (middle of the road
When the tuner receives a program, the music).
preset station number flashes. L. CLASSICAL
Classical music, such as instrumental,
4 Turn jog dial to display the preset vocal, and choral works.
station number you desire. S. CLASSICAL
Performances of major orchestras,
5 Press ENTER/NEXT while the chamber music, opera, etc.
preset station number is flashing.
OTHER MUSIC
Music, such as rhythm and blues and
To cancel PTY search reggae.
Press PTY again. WEATHER
Weather information.

List of program types (PTY) FINANCE

Stock market reports and trading, etc.
CHILDREN
NEWS
Programs for young.
News programs.
SOCIAL
AFFAIRS
Programs about people and the things
Topical programs that expand on current
that affect them.
news.
RELIGION
INFORMATION
Programs of religious contents.
Programs about consumer affairs,
medical advice. PHONE IN
SPORT Programs where members of the public
express their views by phone or in a
Sports programs.
public forum.
EDUCATION
TRAVEL
Educational programs, such as “how-to”
Programs about travel. Not for
programs and advice.
announcements that are located TP/TA.
DRAMA
LEISURE
Radio plays and serials.
Programs on recreational activities such
CULTURE as gardening, fishing, cooking, etc.
Programs about national or regional
culture, language, and social concerns.
continued

35
 Using the Radio Data System (RDS)
(continued) Singing along:
JAZZ Karaoke
Jazz programs.
COUNTRY You can sing along with any stereo CD or
tape by turning down the singer’s voice. You
Country music programs.
need to connect an optional microphone.
NATION
Programs featuring the popular music of (Power) 3
the country or region.
OLDIES
Programs featuring oldies music.
FOLK
Folk Music Programs.
DOCUMENTARY
Investigative features.
ALARM TEST
Test signal for emergency broadcasts.
ALARM-ALARM
Emergency broadcasts.
NONE
Any programming not defined above.

Notes
VOLUME
”NO PTY” appears when the program type you
selected is not currently being broadcast.
1,5 2
1 Turn MIC LEVEL to 0 to turn down
the microphone control level.

2 Connect an optional microphone to

MIX MIC.

3 Press KARAOKE PON/MPX repeatedly

to obtain the karaoke effect you desire.
Every time you press the button, the
display changes as follows:
KARAOKE PON n MPX R n MPX L
n

EFFECT OFF (ON)* N

* When an audio emphasis is selected, the
effect name apears.
The h indicator appears in the display when
a karaoke mode is activated. To sing karaoke
with decreasing the vocal level of a CD, select
“KARAOKE PON”. To sing karaoke of
multiplex CD or tape, select “MPX R” or
36 “MPX L”.
4 Start playing the music and adjust
Mixing and recording
the volume. sounds

5 Adjust the microphone volume by (Power) 4

turning MIC LEVEL.

When you are done

Turn MIC LEVEL to 0 and disconnect the
microphone from MIX MIC, then press
KARAOKE PON/MPX repeatedly so that
“h” disappears.

Note
With some songs, vocals may not be cancelled when
you select “KARAOKE PON”.

Adjusting the
microphone echo
(For Middle Eastern models only)

(Power)
p
2,3 1

1 Do the procedures for singing along

(steps 1 to 5 on page 36, 37). Then,
insert a tape in deck B.

2 Press REC PAUSE/START.

3 Press REC PAUSE/START again.

Recording starts.

4 Press CD (P to start playing the

CD player (or TAPE A ( for tape
deck A).
Playback starts. Start singing along with
the music.
ECHO LEVEL

/ Turn ECHO LEVEL to adjust the

echo effect.

To cancel the echoing

Turn ECHO LEVEL to 0.
continued

37
 Singing along: Karaoke
(continued) Falling asleep to
To stop recording music
Press p.
— Sleep Timer
Tips
• If acoustic feedback (howling) occurs, move the You can let the system turn off at the preset
microphone away from the speakers or change the time, so you can sleep to the music. You can
direction of the microphone. preset the time to be turned off by 10 minutes.
• If you want to record your voice through the
microphone only, you can do so by selecting the
CD function and not playing a CD.
SLEEP
• When high level sound signals are input, the unit
automatially adjusts the recording level to prevent
distortion of the recorded sound signal (Auto
Level Control function).

Notes
• If you press EFFECT (or ON/OFF on the remote)
or recall a sound effect, the karaoke mode is
cancelled. / Press SLEEP.
• The instrumental sound may be reduced as well as Every time you press the button, the
the singer’s voice when the sound is recorded in minute display (the turn-off time)
monaural. changes as follows:
• The singer’s voice may not be reduced when: AUTO n 90min n 80min n 70min
—only a few instruments are playing. n … n 10min n OFF n AUTO …
—a duet is being played.
—the source has strong echoes or chorus.
—the singer’s voice deviates from the center. When you choose “AUTO”
—the voice on the source is singing in high
The power turns off when the current CD or
soprano or tenor.
tape finishes playback (for up to 100
minutes).

To check the remaining time

Press SLEEP once.

To change the time to turn off

Select the time you want by pressing SLEEP.

To cancel the Sleep Timer function

Press SLEEP repeatedly until “SLEEP OFF”
appears.

38
Waking up to music 4 Turn jog dial to select “DAILY 1 (or
2)”, then press ENTER/NEXT.
— Wake-up Timer “ON” appears and the hour digits flash
in the display.
You can wake up to music at a preset time
every day. Make sure you have set the clock
(see “Step 2: Setting the time”).
TIMER
9 SELECT

5 Set the time to start playback.

Turn jog dial to set the hour, then press
ENTER/NEXT.
The minute indication starts flashing.

Turn jog dial to set the minute, then

press ENTER/NEXT.
The hour indication flashes again.

6 Set the time to stop playback

following the above procedure.

7 Turn jog dial until the music source

3 4,5,6, 2 you want appears.
The indications change as follows:
7,8 n TUNER ˜ CD PLAY N
n TAPE PLAY N

1 Prepare the music source you want 8 Press ENTER/NEXT.

to play. The type of timer (DAILY 1 or DAILY 2),
• CD: Insert a CD. To start from a followed by the start time, stop time and
specific track, make a program (see the music source, appears, then the
“Programming the CD tracks” on original display appears.
page 22).
• Tape: Insert an tape with the side you
want to play facing forward.
9 Turn off the power.
• Radio: Tune in the preset station you
want (see “Step 3: Presetting radio
stations” on page 8).

2 Adjust the volume. continued

3 Press CLOCK/TIMER SET.

“SET (DAILY 1)” appears.

39
 Waking up to music (continued)
Timer-recording radio
To check the setting programs
Press TIMER SELECT and turn the jog dial to
select the respective mode (DAILY 1 or
DAILY 2), then press ENTER/NEXT. To timer-record, you must preset the radio
station (see “Step 3: Presetting radio
To change the setting, start over from step 1. stations”) and set the clock (see “Step 2:
To cancel the timer operation Setting the time”) beforehand.
Press TIMER SELECT and turn the jog dial to
select “TIMER OFF”, then press ENTER/ 7 TIMER
SELECT
NEXT.

Tip
The power turns on 15 seconds before the preset
time.

2 3,4,5 6

1 Tune in the preset radio station (see

“Listening to the radio” on page 14).

2 Press CLOCK/TIMER SET.

“SET (DAILY 1)” appears.

3 Turn jog dial to select “REC”, then

press ENTER/NEXT.
“ON” appears and the hour digits flash
in the display.

40
 Optional AV components
4 Set the time to start recording.
Connecting audio
Turn the jog dial to set the hour, then
press ENTER/NEXT. components
The minute indication starts flashing.

Select one of the following connections,

depending on the equipment to be connected
and method of connecting. Refer to the
instructions of each component.
Turn the jog dial to set the minute, then
press ENTER/NEXT.
The hour indication flashes again.
Connecting an MD deck
for digital recording
5 Set the time to stop recording You can record from CD into the MD deck
following the above procedure. digitally by connecting an optical cable.
The start time appears, followed by the
stop time, the preset radio station to be To the DIGITAL IN jack of the MD deck
recorded (e.g., “TUNER FM 5”), then the
original display appears.

6 Insert a recordable tape.

7 Turn off the power.

When the recording starts, the volume
level is set to the minimum.

To check the setting

Press TIMER SELECT and turn the jog dial to
select “REC”, then press ENTER/NEXT.
To change the setting, start over from step 1.

To cancel the timer operation

Press TIMER SELECT and turn the jog dial to
select “TIMER OFF”, then press ENTER/
NEXT.

Note
If the power is on at the preset time, the recording
will not be made.

continued

41
 Connecting audio components Connecting a super
(continued)
woofer speaker
Connecting an MD deck (except for MHC-RXD9 (European
for analog recording model)/RXD7 (European model)/
R770)
Make sure to match the color of the plugs and
the connectors. To listen to the sound of the You can connect an optional super woofer
connected MD deck, press FUNCTION speaker.
repeatedly until “MD” appears.
To super woofer
To the audio output To the audio input
of the MD deck of the MD deck

Tip
When you connect a Sony MD deck, you can use the
MD (, P, and p buttons on this unit’s remote to
perform play, pause, and stop operations.

42
Connecting a VCR Connecting the
surround speakers
Make sure to match the color of the plugs and
the connectors. To listen to the sound of the (MHC-GRX70/GRX70J only)
connected VCR, press FUNCTION repeatedly
until “VIDEO” appears. Refer to the Connect the speaker cords from the surround
instructions of each component. speakers to the appropriate SURROUND
SPEAKER jacks. Connect the solid cords to
To the audio output of the VCR the red jacks and connect the striped cords to
the black jacks.
Keep the speaker cords away from the
antennas to prevent noise.

To surround To surround
speaker (R) speaker (L)

43
 AM antenna
Connecting outdoor Connect a 6- to 15- meter (20- to 50- feet)
antennas insulated wire to the AM antenna terminal.
Leave the supplied AM loop antenna
Connect the outdoor antenna to improve the connected.
reception. Refer to the instructions of each
Jack type A
component.
Insulated wire (not supplied)
FM antenna
Connect the optional FM outdoor antenna.
You can also use the TV antenna instead. FM
75

Jack type A
AM

75-ohm coaxial cable Jack type B

(not supplied)
Insulated wire (not supplied)
FM
75

FM
CO75
AM AX
IA L

AM

Jack type B

IEC standard socket

connector
(not supplied)

FM
CO75
AX
IAL

AM

44
 Additional Information
Notes on CDs
Precautions • Before playing, clean the CD with a cleaning cloth.
Wipe the CD from the center out.
• Do not use solvents such as benzene, thinner,
commercially available cleaners or anti-static
On operating voltage spray intended for vinyl LPs.
Before operating the system, check that the • Do not expose the CD to direct sunlight or heat
operating voltage of your system is identical with sources such as hot air ducts, nor leave it in a car
the voltage of your local power supply. parked in direct sunlight.
On safety Cleaning the cabinet
• The unit is not disconnected from the AC power Use a soft cloth slightly moistened with mild
source (mains) as long as it is connected to the detergent solution.
wall outlet, even if the unit itself has been turned
off. To save a tape permanently
• Unplug the system from the wall outlet (mains) if To prevent a tape from being accidentally recorded
it is not to be used for an extended period of time. over, break off the cassette tab from side A or B as
To disconnect the cord (mains lead), pull it out by illustrated.
the plug. Never pull the cord itself.
• Should any solid object or liquid fall into the
component, unplug the stereo system and have
the component checked by qualified personnel
before operating it any further. Detector slots
• The AC power cord must be changed only at the
qualified service shop.
On placement Tab of side B Tab of side A
• Place the stereo system in a location with adequate
ventilation to prevent heat build-up in the stereo Side A
system.
• Do not place the unit in an inclined position.
• Do not place the unit in locations where it is; Break off the
— Extremely hot or cold cassette tab of
— Dusty or dirty
side A
— Very humid
— Vibrating
— Subject to direct sunlight.
On operation
If you later want to reuse the tape for recording,
• If the stereo system is brought directly from a cold cover the broken tab with adhesive tape. However,
to a warm location, or is placed in a very damp be careful not to cover the detector slots which allow
room, moisture may condense on the lens inside the tape player to automatically detect the type of
the CD player. Should this occur, the system will tape.
not operate properly. Remove the CD and leave
the system turned on for about an hour until the Tape type:
moisture evaporates. CrO2/METAL NORMAL
• When you move the system, take out any discs.

If you have any questions or problems concerning

your stereo system, please consult your nearest
Sony dealer.

Detector slots

continued

45
 Precautions (continued)
Troubleshooting
Before placing a cassette in the
tape deck If you run into any problem using this stereo
Take up any slack in the tape. Otherwise the tape system, use the following check list.
may get entangled in the parts of the tape deck and
become damaged.
First, check that the power cord is connected
firmly and the speakers are connected
When using a tape longer than 90 correctly and firmly.
minutes Should any problem persist, consult your
The tape is very elastic. Do not change the tape nearest Sony dealer.
operations such as play, stop, and fast-winding etc.
frequently. The tape may get entangled in the tape
deck. General
Cleaning the tape heads
The display starts flashing as soon as you
Clean the tape heads after every 10 hours of use.
When the tape heads become dirty;
plug in the power cord even though you
— the sound is distorted
haven’t turned on the power
— there is a decrease in sound level
(demonstration mode).
— the sound drops out •Press DISPLAY (MHC-RXD9/RXD80/
— the tape does not erase completely RXD7/R770) or DEMO (STANDBY)
— the tape does not record. (MHC-GRX9900/GRX70/GRX70J/
Make sure to clean the tape heads before you start GRX50) when the power is turned off.
an important recording or after playing an old tape. The demonstration disappears.
Use separately sold dry-type or wet-type cleaning The demonstration mode appears
cassette. For details, refer to the instructions of the automatically the first time you plug in
cleaning cassette. the power cord or if there is a power
outage lasting longer than half a day.
Demagnetizing the tape heads
Demagnetize the tape heads and the metal parts that The clock setting/radio presetting/timer is
have contact with the tape every 20 to 30 hours of canceled.
use with a separately sold demagnetizing cassette. •The power cord is disconnected or a
For details, refer to the instructions of the power failure occurs longer than half a
demagnetizing cassette. day.
Redo the followings:
— “Step 2: Setting the time”
— “Step 3: Presetting radio stations”
If you have set the timer, also redo
“Waking up to music” and “Timer-
recording radio programs”.
There is no sound.
•Rotate VOLUME clockwise.
•The headphones are connected.
•Insert only the stripped portion of the
speaker cord into the SPEAKER jack.
Inserting the vinyl portion of the speaker
cord will obstruct the speaker
connections.
•There is no audio output during timer
recording.

46
There is severe hum or noise. Speakers
• A TV or VCR is placed too close to the
stereo system. Move the stereo system Sound comes from one channel or
away from the TV or VCR. unbalanced left and right volume.
“0:00” (or “12:00”) flashes in the display. •Check the speaker connection and
speaker placement.
• A power interruption occurred. Set the
clock and timer settings again. Sound lacks bass.
The timer does not function. •Check that the speaker’s + and – jacks are
connected correctly.
• Set the clock correctly.
DAILY 1, DAILY 2, and REC do not appear
when you press the TIMER SELECT button.
• Set the timer correctly. CD Player
• Set the clock.
The CD tray does not close.
The remote does not function. •The CD is not placed properly.
• There is an obstacle between the remote
and the system. The CD will not play.
• The remote is not pointing in the •The CD is not lying flat in the disc tray.
direction of the system’s sensor. •The CD is dirty.
• The batteries have run down. Replace the •The CD is inserted label side down.
batteries. •Moisture condensation has built up.
Remove the CD and leave the system
There is acoustic feedback.
turned on for about an hour until the
• Decrease the volume level. moisture evaporates.
• Move the microphone away form the
speakers or change the direction of the Play does not start from the first track.
microphone. •The player is in program or shuffle mode.
Press PLAY MODE repeatedly until
The color irregularity on a TV screen “PROGRAM” or “SHUFFLE” disappear.
persists.
• Turn off the TV set once, then turn it on “OVER” is displayed.
after 15 to 30 minutes. If the color •You have reached the end of the CD.
irregularity still persists, place the Press and hold 0 to return.
speakers farther away from the TV set.
“PROTECT” and “PUSH POWER” appear
alternately.
• A strong signal was input. Press to continued
turn off the power, leave the system
turned off for a while, then press
again to turn on the power.

47
 Troubleshooting (continued) Tuner
Severe hum or noise (“TUNED” or
Tape Deck “STEREO” flashes in the display).
•Adjust the antenna.
The tape does not record. •The signal strength is too weak. Connect
•No tape in the cassette holder. the external antenna.
•The tab has been removed from the
A stereo FM program cannot be received in
cassette (see “To save a tape
stereo.
permanently” on page 45).
•The tape has reeled to the end. •Press STEREO/MONO so that “STEREO”
appears.
The tape does not record nor play or there
is a decrease in sound level.
•The heads are dirty. Clean them (see If other troubles not described
“Cleaning the tape heads” on page 46). above occur, reset the system as
•The record/playback heads are follows:
magnetized. Demagnetize them (see
1 Unplug the power cord.
“Demagnetizing the tape heads” on page
46). 2 Plug the power cord back in.
3 Press p, ENTER/NEXT, and at the
The tape does not erase completely. same time.
•The record/playback heads are
4 Press to turn on the power.
magnetized. Demagnetize them (see
“Demagnetizing the tape heads” on page The system is reset to the factory settings. All
46). the settings you made, such as the preset
stations, clock, and timer are cleared. You
There is excessive wow or flutter, or the should set them again.
sound drops out.
•The capstans or pinch rollers are dirty.
Clean them (see “Cleaning the tape
heads” on page 46).
Noise increases or the high frequencies are
erased.
•The record/playback heads are
magnetized. Demagnetize them (see
“Demagnetizing the tape heads” on page
46).
After pressing ( (9) or §, there is a
mechanical noise, “EJECT” appears in the
display, and the unit enters standby mode
automatically.
• The cassette tape was not inserted
correctly. Eject the tape and turn the
power back on.

48
 Other models:

Specifications MHC-GRX9900:
The following measured at AC 120, 220, 240 V
50/60 Hz
DIN power output (rated) 200 + 200 watts
(6 ohms at 1 kHz, DIN)
AUDIO POWER SPECIFICATIONS:
Continuous RMS power output (reference)
(MHC-RXD9 U.S.A. models only) 250 + 250 watts
POWER OUTPUT AND TOTAL (6 ohms at 1 kHz,
10% THD)
HARMONIC DISTORTION:
MHC-GRX70/GRX70J:
with 8 ohm loads both channels driven, from The following measured at AC 120, 220, 240 V
70-20,000 Hz; rates 140 watts per channel 50/60 Hz
minimum RMS power, with no more than DIN power output (rated) 130 + 130 watts
(6 ohms at 1 kHz, DIN)
0.9% total harmonic distortion from 250 Continuous RMS power output (reference)
milliwatts to rated output. 170 + 170 watts
(6 ohms at 1 kHz,
Amplifier section 10% THD)
MHC-GRX50:
Canadian models: The following measured at AC 120, 220, 240 V
MHC-RXD80: 50/60 Hz
Continuous RMS power output (reference) DIN power output (rated) 110 + 110 watts
100 + 100 watts (8 ohms at 1 kHz, DIN)
(8 ohms at 1 kHz, Continuous RMS power output (reference)
10% THD) 140 + 140 watts
Total harmonic distortion less than 0.07% (8 ohms at 1 kHz,
(8 ohms at 1 kHz, 55 W) 10% THD)
MHC-RXD7:
Continuous RMS power output (reference)
70 + 70 watts
(6 ohms at 1 kHz,
10% THD)
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 45 W)

European models:
MHC-RXD9:
DIN power output (rated) 120 + 120 watts
(8 ohms at 1 kHz, DIN) continued
Continuous RMS power output (reference)
150 + 150 watts
(8 ohms at 1 kHz,
10% THD)
Music power output (reference)
275 + 275 watts
(8 ohms at 1 kHz,
10% THD)
MHC-R770/RXD7:
DIN power output (rated) 80 + 80 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
100 + 100 watts
(8 ohms at 1 kHz,
10% THD)
Music power output (reference)
170 + 170 watts
(8 ohms at 1 kHz,
10% THD)

49
 Specifications (continued) Tape player section
Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000 Hz (±3 dB),
Inputs (DOLBY NR OFF) using Sony TYPE I
MD IN: voltage 450 mV, cassette
(phono jacks) impedance 47 kilohms 40 – 14,000 Hz (±3 dB),
VIDEO (AUDIO) IN: voltage 250 mV, using Sony TYPE II
(phono jacks) impedance 47 kilohms cassette
MIX MIC: (phone jack) sensitivity 1 mV, Wow and flutter ±0.15% W.Peak (IEC)
impedance 10 kilohms 0.1% W.RMS (NAB)
Outputs ±0.2% W.Peak (DIN)
MD OUT: voltage 250 mV
(phono jacks) impedance 1 kilohms Tuner section
PHONES: accepts headphones of
(stereo mini jack) 8 ohms or more FM stereo, FM/AM superheterodyne tuner
SPEAKER:
MHC-GRX9900/GRX70/GRX70J/RXD7 (Canadian FM tuner section
model): accepts impedance of 6 to Tuning range 87.5 – 108.0 MHz
16 ohms Antenna FM lead antenna
MHC-RXD9/RXD7 (European model)/RXD80/ Antenna terminals 75 ohm unbalanced
R770/GRX50: accepts impedance of 8 to Intermediate frequency 10.7 MHz
16 ohms

SURROUND SPEAKER: accepts impedance of 16 UKV tuner section

(MHC-GRX70/GRX70J ohms (3 band (FM-AM-UKV) models only)
only) Tuning range 65.0 – 74.0 MHz
Stereo Plus
SUPER WOOFER: Voltage 1 V, impedance
(except MHC-R770/ 1 kilohm
RXD7 (European model)/
RXD9 (European model))

CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ=780nm)
Emission duration:
continuous
Laser output Max. 44.6 µW*
*This output is the value
measured at a distance of
200 mm from the
objective lens surface on
the Optical Pick-up Block
with 7 mm aperture.
Wavelength 780 – 790 nm
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength 660 nm
Output Level –18 dBm

50
AM tuner section SS-RXD9 for MHC-RXD9 (except for German model)
Speaker system 2-way, 5-unit,
Tuning range bass-reflex type
2 Band type: Speaker units
North American models: 530 – 1,710 kHz Woofer: 15 cm, cone type x2
(with the interval set at 10 Tweeter: 5 cm, cone type x3
kHz) Nominal impedance 8 ohms
531 – 1,710 kHz Dimensions (w/h/d) Approx. 250 x 430 x 355
(with the interval set at 9 mm (10 x 17 x 14 in.)
kHz) Mass Approx. 8.5 kg (16 lb
European models: 531 – 1,602 kHz 9 oz) net per speaker
(with the interval set at 9 SS-RXD80 for MHC-RXD80/SS-RXD7S for
kHz) MHC-RXD7 (European model)
Other models: 531 – 1,602 kHz Speaker system 4-way, 5-unit,
(with the interval set at 9 bass-reflex type,
kHz) magnetically shielded
530 – 1,710 kHz type
(with the interval set at 10 Speaker units
kHz) Woofer: 17 cm, cone type
3 Band type: Center Tweeter: 5 cm, cone type
Middle Eastern models: Side Tweeter: 5 cm, cone type x2
MW: 531 – 1,602 kHz Super Tweeter: 4 cm, cone type
(with the interval set at 9 Nominal impedance 8 ohms
kHz) Dimensions (w/h/d) Approx. 230 x 340 x 320
SW: 5.95 – 17.90 MHz mm
(with the interval set at 5 Mass Approx. 5.5 kg net per
kHz) speaker
Other models: SS-R770 for MHC-R770
MW: 531 – 1,602 kHz Speaker system 4-way, 5-unit,
(with the interval set at 9 bass-reflex type
kHz) Speaker units
530 – 1,710 kHz Woofer: 17 cm, cone type
(with the interval set at 10 Center Tweeter: 5 cm, cone type
kHz) Side Tweeter: 5 cm, cone type x2
SW: 5.95 – 17.90 MHz Super Tweeter: 4 cm, cone type
(with the interval set at 5 Nominal impedance 8 ohms
kHz) Dimensions (w/h/d) Approx. 230 x 340 x 320
Antenna AM loop antenna mm
Antenna terminals External antenna terminal Mass Approx. 5.5 kg net per
Intermediate frequency 450 kHz speaker
SS-GRX70/GRX70G for MHC-GRX70/SS-GRX70J
Speaker for MHC-GRX70J
Speaker system 4-way, 5-unit,
SS-GRX9900/GRX9900G for MHC-GRX9900 bass-reflex type,
Speaker system 2-way, 5-unit, magnetically shielded
bass-reflex type type
Speaker units Speaker units
Woofer: 15 cm, cone type x2 Woofer: 17 cm, cone type
Tweeter: 5 cm, cone type x3 Center Tweeter: 5 cm, cone type
Nominal impedance 6 ohms Side Tweeter: 5 cm, cone type x2
Dimensions (w/h/d) Approx. 250 x 430 x 355 mm Super Tweeter: 4 cm, cone type
Mass Approx. 8.5 kg net per Nominal impedance 6 ohms
speaker Dimensions (w/h/d) Approx. 230 x 340 x 320
SS-RX900D for MHC-RXD9 (German model) mm
Speaker system 3-way, 5-unit, Mass Approx. 5.5 kg net per
bass-reflex type speaker
Speaker units
Woofer: 15 cm, cone type x2
Center Tweeter: 5 cm, cone type
Side Tweeter: 5 cm, cone type x2 continued
Nominal impedance 8 ohms
Dimensions (w/h/d) Approx. 250 x 430 x 355
mm
Mass Approx. 7.5 kg net per
speaker

51
 Specifications (continued) Mass
U.S.A. models:
MHC-RXD9: Approx. 10.6 kg
(23 lb 6 oz.)
SS-RXD7 for MHC-RXD7 (Canadian model)
Canadian models:
Speaker system 3-way, bass-reflex type
MHC-RXD7: Approx. 9.2 kg
Speaker units
MHC-RXD80: Approx. 10.2 kg
Woofer: 17 cm, cone type
European models:
Tweeter: 5 cm, cone type
MHC-R770/RXD7: Approx. 10.1 kg
Super Tweeter: 2 cm, dome type
MHC-RXD9: Approx. 10.8 kg
Nominal impedance 6 ohms
Other models:
Dimensions (w/h/d) Approx. 220 x 340 x 280
MHC-GRX50: Approx. 10.0 kg
mm
MHC-GRX70/GRX70J: Approx. 10.6 kg
Mass Approx. 4 kg net per
MHC-GRX9900: Approx. 12.2 kg
speaker
SS-GRX50/GRX50G for MHC-GRX50
Supplied accessories: AM loop antenna (1)
Speaker system 3-way, bass-reflex type
Remote Commander (1)
Speaker units
Batteries (2)
Woofer: 17 cm, cone type
FM lead antenna (1)
Tweeter: 5 cm, cone type
Speaker cords (2 for front
Super Tweeter: 2 cm, dome type
speakers with jacks only)
Nominal impedance 8 ohms
Front speaker pads (8)
Dimensions (w/h/d) Approx. 220 x 340 x 280
mm
Optional accessories:
Mass Approx. 4 kg net per
(MHC-GRX70/GRX70J Surround speaker
speaker
only) SS-SR125
Speaker system 1-way, 1-unit,
General bass-reflex type
Power requirements Speaker units:
North American models: 120 V AC, 60 Hz Full range 8 cm dia., cone type
European models: 230 V AC, 50/60 Hz Nominal impedance 16 ohms
Australian models: 230-240 V AC, 50/60 Hz Dimensions (w/h/d) Approx. 220 x 100 x 195
Mexican models: 120 V AC, 50/60 Hz mm
Israel, South African and Thai models: Mass Approx. 1.0 kg net per
220 V AC, 50/60 Hz speaker
Other models: 120 V, 220 V or 230 - 240
V AC, 50/60 Hz
Adjustable with voltage Design and specifications are subject to change
selector without notice.

Power consumption
U.S.A. models:
MHC-RXD9: 170 watts
Canadian model:
MHC-RXD7: 130 watts
MHC-RXD80: 170 watts
European models:
MHC-R770/RXD7: 165 watts
MHC-RXD9: 180 watts
Other models:
MHC-GRX50: 160 watts
MHC-GRX70/GRX70J: 170 watts
MHC-GRX9900: 240 watts

Dimensions (w/h/d)
MHC-GRX9900/RXD9 Approx. 280 x 360 x 395 mm
(131/8 x 141/4 x 155/8 in.)
Other models: Approx. 280 x 340 x 395 mm
(131/8 x 131/2 x 155/8 in.)

52
53
 Parts identification
MHC-GRX70/GRX70J/GRX50/R770/RXD80/RXD7

1 2 3 4 5

7
#º 8
@ª 9
@• 0
@¶
!¡
@§
@∞ !™
@¢ !£

@£ @™ @¡ @º !ª !• !¶ !§ !∞ !¢

1 (power) button !¡ Operationg buttons for recording:

2 POWER SAVE/DEMO button REC PAUSE/START button
3 DISC 1~3 buttons HI-DUB button
CD SYNC button
4 DISC SKIP/EXCHANGE button
!™ PHONES jack
5 CD § button
!£ DBFB button
6 Disc tray
SURROUND button
7 Display
!¢ Deck B § button
8 CD/tape operating buttons:
!∞ Deck B
CD (P (play/pause)
TAPE A ( (play) !§ VOLUME control
TAPE A 9 (play) !¶ ENTER/NEXT button
TAPE B ( (play) !• 0/), +/– buttons
TAPE B 9 (play) !ª Jog dial
p (stop) @º GROOVE button
9 TUNER/BAND button @¡ Operating buttons for DJ Effects:
0 NON-STOP button LOOP button
KARAOKE PON/MPX button FLASH button
SYNC EQ button
SYNC BASS button

54
MHC-GRX9900/RXD9
1 2 3 4 5

7
8
#º
@ª 9
@• 0
@¶ !¡
@§
@∞ !™
@¢ !£

@£ @™ @¡ @º !ª !• !¶ !§ !∞ !¢

@™ Deck A @ª For MHC-GRX9900/GRX70/GRX70J/

@£ Deck A § button RXD9/RXD80
@¢ MIX MIC jack EFFECT button
FILE SELECT button
@∞ Clock/timer operating buttons:
GEQ CONTROL button
CLOCK/TIMER set button
P FILE MEMORY button
TIMER SELECT button
For MHC-GRX50/R770/RXD7
@§ MIC LEVEL control EDIT, DIRECTION, TUNER MEMORY
@¶ DISPLAY button button
SPECTRUM ANALYZER button PLAY MODE, DOLBY NR(, PTY*) button
@• For MHC-GRX9900/GRX70/GRX70J/ REPEAT, STEREO/MONO button
RXD9/RXD80 only FILE SELECT button
EDIT, DIRECTION, TUNER MEMORY #º FUNCTION button
button
PLAY MODE, DOLBY NR(, PTY*) button
* For European models only.
REPEAT, STEREO/MONO button

55
 K S
Index Karaoke 36 Saving recordings 45
Selecting the audio emphasis
L, M 29
A Setting the time 7
Loop 27 Shuffle Play 21
Adjusting
the audio emphasis 29 Sleep Timer 38
the sound 28
N Sound adjustment 28
the volume 12, 14, 17 Normal Play 11 Speakers 5
Antennas 6, 44 Station name 34
Automatic Source Selection O
12, 15, 17 T, U, V
One Touch Play 12, 15, 17
Timer
B falling asleep to music
P, Q
Batteries 7 38
Personal file 33 timer recording 40
Playing waking up to music 39
C
a CD 11 Troubleshooting 46
CD player 11, 19-23 a preset station 14 Tuner 8, 14
CD Synchro Recording 13 a tape 16 Tuning interval 9
Clock setting 7 tracks in random order
Connecting. See Hooking up (Shuffle Play) 21
W, X, Y, Z
tracks in the desired
order (Program Play) 22 Wake-up timer 39
D, E
tracks repeatedly
Display 19 (Repeat Play) 20
Presetting radio stations 8
F, G Preset tuning 14
Program Play 22
Flash 27
Protecting recordings 45
PTY 34
H, I, J
Hooking up R
optional components
41-44 Radio Data System 34
the antennas 6, 44 Radio stations
the power 6 presetting 8
the system 5 tuning in 14
Recording
a CD 13
a radio program 15
timer recording 40
Repeat Play 20
Resetting the system 48

56Sony Corporation Printed in Hungary