ngpcp

puouurimaufFT nacER Ban] gin DORM R33cMi GacriwT

PLEASE READ BEFORE

USING THIS EQUIPMENT

CAT. ND.
CUSTOM MANUFACTURED FOR TANDY CORPORATION 14-B10

Downloaded from www.Manualslib.com manuals search engine

 FEATURES SPECI FICATIONS
Front Loading Deck
State-of-the-art mechanism permits convenient front loading into Tape System :Standard PHILIPS Cassette
the compartment. This design means you can stack com- 4-track stereo
ponents or install this deck between shelves. C-30/60/90/120 (number indicates total
time for both sides)
Dolby* Noise Reduction System Tape Speed : 1-7/8 ips (4.75 cm/sec)
World-famous Dolby Noise Reduction system reduces tape hiss and Frequency Response : Supertape Gold, 30-12, 000 Hz (± 3 dB)
tape head noise, resulting in substantially improved signal-to-noise. (overall)
This gives an added benefit of extending the dynamic range. Signal-to-Noise : Supertape Gold with Dolby, better than
(overall) —58 dB
Tape Selection Switch Distortion at +3 VU : 1.5% maximum
To achieve optimum results from today's technologically advanced Cross-talk : Better than — 60 dB
ultra-low noise tapes and Chromium Dioxide tapes, bias and Wow & Flutter : 0.12% maximum
equalization must be matched to the tape being used. The BIAS (WRMS)
and EQualization Switches provide this necessary matching — Erase Ratio : Better than 60 dB
resulting in superior signal-to-noise, wider frequency response and Output Level : 0.58 volts (adjustable)
greater dynamic range with either tape. Output Impedance : Less than 10K ohms
Input Sensitivity : Mic = — 63 dB (.053 mV)
Dual VU Meters
Aux = — 18 dB (100 mV)
Separate Right and Left channel Level Meters are illuminated and
Input Impedance Mic, more than 1 K ohms
can be used in conjunction with individually adjustable Right and
Aux, 100 K ohms
Left Channel Record Level Controls to precisely set recording
Record Bias : 85 kHz
levels.
Erase System : 85 kHz AC erase
Headphone Jack Fast-Forward/Rewind
This is located at the lower right front of the unit for quick and Time : Less than 110 seconds with C-60
easy headphone listening. Microphone Jacks are right there too — Power Requirements : 120 volts, 60 Hz AC (220/240 volts, 50 Hz
easy to get at. for European and Australian models),
35 watts
* "DOLBY" and DO DOL BY SYSTE M are trademarks of Dolby Labora- Semiconductor Integrated Circuits, 2
tories Inc. complement Transistors, 14
Diodes, 13
Zener Diodes, 1
Dimensions : 4-3/16" x 14-7/16" x 9-9/16" (HWD)
(10.6 x 36.7 x 24.3 cm)
For your own protection, we urge you to record the Serial Number Weight : 11 lbs. (5.0 kg)
of this unit in the space provided. You'll find the Serial Number on
the back panel of the unit.
Serial Number

Downloaded from www.Manualslib.com manuals search engine

 CONTROLS Use Cr02 (press in) for ChrOmium Dioxide tapes; use NORMal
This is a quick reference guide to the many features of your SCT- (out position) for all other tapes. If functions in both the Record
20. For operation and installation instructions, refer to later and Play modes.
sections of this manual.
POWER Press in to turn power "ON"; press again to turn power BIAS Button the position of this button determines the proper
bias level to match tapes yo are using. Use Cr02 (in position) for
"OF F".
Chromium Dioxide tapes; use NORMal (out position) for all other
PHONES Jack Plug a pair of stereo headphones into this jack to tapes. Use this BIAS switch simultaneously with EQ, (Equalization)
listen to the tape being played back, or to monitor the signal switch. It function only in Record mode.
being recorded during a recording section.
MIC LEFT and RIGHT Jacks Plug high-quality microphones into RECORD Key...press simultaneously with PLAY key to record.
these jacks to make "live" recordings. The RECORD LED will light indicating you are in the Record
mode.
Dual VU Meters these indicate the level of the Record or Play
signal — one for each channel. They are lighted when Power is on. REWIND Key...when you have a cassette loaded, press down to
RECORD LEVEL Controls adjust for the proper level of record- rewind tape rapidly. To release this function, press STOP/EJECT.
ing for each channel, as indicated on the Level Meters.
FAST-Forward Key...when you have a cassette loaded, press down
RECORD Function LED lights up when you are in the Record to move tape rapidly in a forward direction. To release this
mode. function, press STOP/EJECT.
Digital Tape Counter use to aid you in locating desired portions
of the tape. Press the button at the right to reset to "000". PLAY Key...press for playback operation. For Record, press this
DOLBY NR Button controls the operation of the built-in Dolby key simultaneously with the RECORD key.
Noise Reduction System. For making Dolby Recordings and for STOP/EJECT Key...to stop the tape during any function, press
playing them back, press this button in; press again to release the once; to eject the cassette, press again.
Dolby function.
EQ (Tape Equalization) Button the position of this switch PAUSE Key...to temporarily stop tape travel during Record or
determines the proper equalization to match tapes being used. Play, press this key. Press again to restart tape movement.

—3—

Downloaded from www.Manualslib.com manuals search engine

 INSTALLATION OPERATION
Using one of the patch cord provided, connect the Left and Right PLAYING BACK TAPES
LINE OUT jacks to the corresponding tape input jacks of you To Turn the Deck On
stereo Amplifier/Receiver. Plug the line cord into any 120 volt,
The SCT-20 offers the convenience of a separate ON/OFF switch.
60 Hz AC outlet. (220/240 volt, 50 Hz for European and
Australian models as indicated on the rear of the unit.) To turn the Deck on, push POWER once; push again to turn off.

Loading a Cassette
Use the other patch cord to connect the LINE IN jacks to the
TAPE OUT (or RECORD OUT) jacks on your Amplifier/Receiver. 1. Open the Cassette Door.
2. Press STOP/EJECT key. This brings all the keys into the "up"
(For European models only) position.
If your Amplifier/Receiver has a DIN jack, use a DIN cord (not 3. Load the Cassette, open end
provided) to connect the rear panel R EC/PLAY DIN jack to the down with the full reel to your
DIN jack on your Amplifier/Receiver. When using DIN jack, left, into the cassette com-
disconnect LINE IN/LINE OUT jacks. partment and push it down
until it locks.
NOTE: It may be necessary to adjust the OUTPUT LEVEL con- 4. Close the Cassette Door.
trols to match the input of your Amplifier/Receiver. Do this as
follows: Set up your stereo system with another signal source To remove the Cassette, the tape
(FM or records, etc.). Adjust volume, tone and balance for normal movement must be stopped
listening conditions. Now, switch the Amplifier/Receiver to (either automatically, or manual-
operate with the Tape Deck and play a cassette tape. If necessary, ly, by pressing STOP/EJECT).
adjust the OUTPUT LEVEL controls on the back of the Tape Then, press STOP/EJECT again
Deck to obtain a similar output level. Switch back and forth be- to Eject the Cassette.
tween the two signal sources and make adjustments until you are FULL REEL
satisfied with the balance of the sound output. Once set, this Playing the Tape
control requires no further attention. 1. Press POWER to turn the unit on. Press the Digital Tape Counter
button to reset to 000.
2. Load a pre-recorded Cassette as noted above.
3. Set E Q switch to the appropriate position. Press in if the tape
is Cr02 type; leave out if it is standard type tape.
4. If you are going to play a Dolbyized tape, press DOLBY NR in.
5. Press PLAY key and the tape will begin moving. Adjust Volume,
Tone and Balance controls on your Amplifier/Receiver for
desired sound.
TO LINE IN TO LINE OUT
6. To temporarily stop tape playing, press PAUSE; to restart the
PATCH CORDS tape, press PAUSE again.
7. To stop playing, press STOP/EJECT.
To TAPE OUT or t To TAPE IN or
LINE OUT fi AUX IN To move tape rapidly in a forward direction press FAST-F.
To move tape rapidly in a reverse direction, press REWIND.
FIGURE

Downloaded from www.Manualslib.com manuals search engine

 In either case, to return tape travel to normal speed, press STOP/ 7. Press PAUSE again to release it. The tape will begin to move and
EJECT, then press PLAY. you are recording.

8. To temporarily stop the tape while recording, press PAUSE. To

Use the Tape Counter to aid you in locating approximate positions
restart the tape, press PAUSE again.
on the tape.

To listen to tapes privately (or if you don't have an Amplifier/ 9. To stop recording, press STOP/EJECT.
Receiver), plug a pair of stereo headphones into the PHONES jack.
To advance tape rapidly to any desired point, use FAST-F key.
STEREO RECORDING Use REWIND to move tape rapidly in a reverse direction.
You can make recordings either from microphones (through Use Tape Counter to aid in returning to original tape position and
MICrophone jacks) or through the LINE IN jacks. Make the to locate desired portions of the tape.
appropriate connections before starting the Recording session.
NOTE: We strongly urge you to use only the finest tape with NOTE: Before changing tape motion, always press STOP/EJECT
your SCT-20. Only with the finest tape will you realize the fullest first. It is not a good practice to go from FAST-F or REWIND to
capabilities of this Tape Deck. Use either Realistic's Supertape ® PLAY or vice versa without pressing STOP/EJECT in between.
Gold or our Supertape Chrome tape. Abrupt changes in tape speed can result in tape spill or wrap-up.

1. Load a Cassette into the Cassette Compartment. Microphone Recording

2. Make connections to record either from Mics or an Auxiliary To obtain optimum results with "live" recordings we recommend
source (LINE IN jacks). that you use high-quality microphones. We suggest Radio Shack's
Electret Microphones, Catalog Number 33-1044 or 33-1045.
NOTE: When both MICrophone and LINE IN connections are
made, only the MICrophone input will function. NOTE: For best voice recordings, position the microphones just
below the mouth at about 6-10" (15-25 cm).
3. Set BIAS and EQ switches to the appropriate positions. Press in
if you are using Cr02 tape. Leave in the NORMal position for Microphone placement and positioning is a vital part of obtaining
all other tapes. Mark the switch setting on the Cassette so good stereo recordings. We suggest you experiment a little with
you'll remember to play the tape back with the same setting. distances and positioning before making any final recordings.
(See NOTES later on.) Making a good recording is an art it takes experience.

4. Press DOLBY NR in if you are going to make a Dolbyized re-

Recording from Radio or Phono
cording (be sure to mark the Cassette if you record with Dolby).
With connections made as previously noted, you can record "off-
5. Reset the Digital Tape Counter to 000. the-air" or put your records on tape — or record any other source
being played through your Amplifier/Receiver.
6. Press PAUSE, RECORD and PLAY keys and adjust the RE-
CORD LEVEL controls to achieve proper channel balance and
recording level. Adjust for meter readings that only occasionally TO ERASE A TAPE
peak up into the red area on the meters. Normal recording levels It is not necessary to erase a tape before using it again.
will give meter readings between black numbers 5 and 3. This As you record, any previous recordings are automatically erased.
procedure allows you to preset recording levels prior to starting However, if you want to erase a previous recording, without making
tape motion. a new one, disconnect microphones and set the RECORD LEVEL
controls to minimum. Now, load the cassette and run it through
with both RECORD and PLAY keys pressed (just as though you

Downloaded from www.Manualslib.com manuals search engine

 were making a recording). This will erase the tape clean. Or, easier,
and for best erasure, use a Bulk Tape Eraser such as Radio Shack
sells.
Front side A (1)
MONAURAL RECORDING AND PLAYBACK
You can use your SCT-20 for monaural Record or Playback;
follow the same procedures as outlined previously for both
functions. For mic recordings, just plug the mic into the LEFT/
MONO MICrophone jack.
Back side B (2)
When you make monaural recordings through LINE IN jacks, it is
best if you use both right and left channels for the monaural signal
— this assures best sound reproduction, maximum output and
lowest noise.
Stereo Monophonic
head head
4-TRACK RECORDING AND PLAYBACK
A cassette has two sides.
This Cassette Deck uses the standard four track, two channel
4
(stereo) system for making recordings and playing them back.
B
After you have recorded both right and left channels on one side, 3
remove the cassette, turn it over and reload — recording both chan-
nels on the other side. Also, the Cassettes can be recorded with A
1
L •• •
either mono or stereo signals.

Downloaded from www.Manualslib.com manuals search engine

 MAKING AN ORDINARY RECORDING MAKING A DOLBY SYSTEM RECORDING
1 . Music. Music is made of sounds of dif- 1 . What the Dolby System does first.Be-

ferent, loudness separated by intervals of fore the recording is made, the Dolby Sys-
silence. Loud and soft sounds are shown tem "listens" to the music to find the places
here as long and short lines. The music re- where a listener might later be able to hear
presented by this diagram starts loud and the noise of the tape. This happens mainly
gradually becomes very quiet. duhng the quietest parts of the music.
When it finds such a place, the Dolby Sys-
tem automatically increases the volume so
that the music is recorded louder than it
would be normally.

2. Noise. Any recording tape, even the best 2. The Recording. In a Dolby System re-
kind, makes a constant hissing noise when cording, the parts of the music which have
played. At the very slow speeds and nar- been made louder stand out clearly from
row track- widths used in tape cassettes, the noise. As a result, Dolby System record-
tape noise is much more noticeable than ings sound brilliant and unusually clear even
it is in professional tape recordings, al- when played back without the special Dolby
though even there it is a problem. System circuit.
•; ". :•'. C.*:', :.'..: 1 :**.*::..: ::•*.*: : :.: : '..: 1. :
• ••

.•f
. i •••• '.*** *, ••• —." *.• : • -; "..: : - -, '
:•.*: .::. r..:*. f.: c.-:-. :...*.: -.. : - . : :.:''. :-.•.:,

3. What the Dolby System does during

playback. When the tapes are played on a
3 . Music and Noise. When a tape record-
high fidelity tape recorder equipped with the
ing is played, the noise of the tape con-
Dolby System circuit, the loudness is auto-
ceals the quietest musical sounds and fills
matically reduced in all of the places at
the silence when no sound should be heard
which it was increased before recording.
at all. Only when the music is loud will the
This restores the music to its original loud-
noise be masked and usually not heard.
ness again. At the same time, the noise
However, tape noise is so different from which has been mixed with the music is
musical sounds that it sometimes can be
•
reduced in loudness by the same amount—
•

heard even then. •.• usually enough to make it inaudible.

Downloaded from www.Manualslib.com manuals search engine

 NOTES AND APPLICATIONS
CHOOSING THE RIGHT TAPE Cassettes have a built-in erase protection device. On the back are
Choice of tape is vital to good recordings. For most voice record- two small tabs. To prevent accidental erasure, carefully break off
ings (dictation, notes, lectures, etc.) either the CONCERTAPE or the appropriate tab as shown below. With side A (or 1) up,
REALISTIC Cassettes are appropriate. For average-to-good music breaking "tab A" will prevent accidental erasure of the material on
and other recordings, we recommend REALISTIC cassettes. For side A (or 1), Tab B is for side B (or 2).
low noise, wide-range recordings, we recommend SUPERTAPE When the tab has been broken off, you can not press the RECORD
GOLD. For the very finest fidelity and lowest noise recordings, key down (don't try to force it down). If you decide to erase or re-
use REALISTIC Cr02 Cassettes (in conjunction with Cr02 switch cord a cassette which has the tabs broken off, just cover the appro-
positions). priate opening with tape.

Recording Level is a very important consideration if you are inter-

ested in obtaining top-quality recordings. Since we have incor- SIDE A
porated individual channel controls, you have added control and
flexibility.

Meter readings should not be too high or too low. Proper recording
levels will be achieved when peak meter readings only very oc-
casionally touch into the red area. Normal peak levels will produce
peak meter swings up to between 6 and 0 of the black numbers. '-044,41kti

TYPICAL
RECORDING EXCESS LEVEL
TABS
LEVEL
•

To re-record a cassette, it is not necessary to erase previous re-

cordings. Previous recordings are automatically erased when a new
recording is made.
Average Peak
between 5 and 0
of the black numbers.
To erase a tape, follow the same procedure as for Recording, but
disconnect inputs and reduce RECORD LEVEL controls to mini-
mum. Then run the tape through (press RECORD and PLAY
keys); this automatically erases previous recordings from the tape.
Note that Erase Protect Tabs must be in place for this erase func-
tion to work. Or, you can use a bulk eraser such a Radio Shack's
Catalog Number 44-210.
Recording levels which consistently peak into the red area will
result in distortion and/or poor high frequency response. Re- To achieve optimum Record and Play results, be sure to use the
cording levels which peak only occasionally to 3 (or lower) of the correct DOLBY, BIAS and EQ switch positions.
black numbers will have excessive noise — especially noticeable in When playing back a Dolbyized tape, always press DOLBY NR in
the soft passages. Therefore, you must learn to adjust recording (or the tape will sound overly "bright"; that is, excessive high-fre-
levels for a happy medium — to assure lowest noise and widest pos- quency content). When playing back a non-Dolbyized tape, leave
sible dynamic range. DOLBY NR out (or the sound will lack high-frequency emphasis).
—8—

Downloaded from www.Manualslib.com manuals search engine

 BIAS and EQualization switches have been incorporated so you quality this system is capable of, such dust, line and oxide must be
can match the Deck to the tape you use. We use both to give you cleaned off. Also, the heads tend to retain residual magnetism after
extra versatility — so you can use any of the new tapes now availa- some hours of use this introduces noise on both record and
ble (and to make sure your Deck will be compatible with any future playback. To clean, we recommend using Radio Shack Catalog
tape developements). Typically you'll want to use Cr02 positions Number 44-1160 Cassette Head Cleaner or use cleaning sticks (44-
for Chromium Dioxide tapes. And use NORMal for all other 1093) and Recorder Cleaner ( 44-217). To remove residual
tapes. However, you may firid you'll get better results with some of magnetism, use a Tape Head Demagnetizer such as 44-211 or 44-
the special tapes if you use Cr02 Bias and NORMal Equalization 215. Or, the easiest way to do this is to use a 44-631 Cartridge
settings for recordings. Cleaner/Demagnetizer.

We suggest that if you are using one of the special formulation tapes, REALISTIC GUIDE TO TAPE RECORDERS is a very helpful pub-
try different combinations till you obtain the one which results in lication available at your Radio Shack store. It has a number of
the best overall level, frequency response and lowest noise. interesting chapters covering practical aspects of tapes, recorders
and accessories, plus a number of hints to enhance enjoyment of
NOTE: BIAS functions only during Record mode (has no effect your Realistic Cassette Tape Deck.
during play). EQ functions in both Record and Play.

The Dolby System incorporated in your Tape Deck will enable you
to make tape recordings with substantially improved signal-to-noise
ratio, which gives the effect of extending dynamic range. It will
provide approximately 10 dB improvement in signal-to-noise in the
frequency range of tape hiss-noise.

You can duplicate tapes by recording from another tape deck/

player or put 8-track tape programs on cassettes. Or, you can put
your favorite records onto cassettes. Make appropriate connections
from another tape player or phonograph to the LINE IN jacks as
noted previously.

Storage of tape is no major problem, provided you do not expose it

to extreme temperatures or high humidity. Also, do not expose
your tapes to magnetic fields (magnets, large transformers, etc.).
Avoid dust and dirt. You may find storage containers to be extreme-
ly useful accessories; see your local Radio Shack store.

Demagnetize the tape heads and clean the tape handling parts pe-
riodically this will insure maximum frequency response and
lowest noise. After a few hours of recording or playing, dust, lint
and tape oxide will begin to build up on the tape heads and guides;
this affects record and play quality. To achieve the professional

Downloaded from www.Manualslib.com manuals search engine

 SERVICE AND MAINTENANCE CAUTIONS
Only the highest quailty parts are used in your unit and it should re-
The erase protection tabs on a cassette are a precaution against
quire little or no service as long as you observe a few general rules.
accidental erasure or re-recording. Do not attempt to force down
the RECORD key if the cassette in the unit has these tabs re-
Although the SCT-20 is a ruggedly-built unit, reasonable care
moved.
should be used to avoid rough handling. Avoid exposure to dirt
and dust and areas of high heat and humidity.
Before Recording or Playing back, be sure the cassette is properly
seated in the cassette compartment.
Always keep your unit clean—especially the tape heads and tape
handling parts—this will insure long life and maximum fidelity.
Do not touch the face of the Tape Heads with any magnetic or
Over a period of time it is normal for a certain amount of dust, metallic object.
lint and powder from the tape to accumulate on these parts. This
prevents proper contact of the tape and results in improper tape
handling (producing noise, partial "drop-outs" and poor frequency
response). Periodically clean the tape heads and tape handling parts
with tape head cleaner, cue-tips or a cassette cleaner tape. Your
local Radio Shack store carries a complete line of tape care acces-
sories.

Over long periods of constant use, the tape heads will tend to retain
some magnetism. A magnetized head will produce noise. Thus, it is
important that the heads be demagnetized periodically. We recom-
mend using either Radio Shack Catalog Number 44-215 or 44-211.
Or, just use our 44-631 to clean and demagnetize by simply playing
this Cleaner Demagnetizer Cassette.

Periodic lubrication will insure proper operation of all moving parts.

At least once a year you should bring your unit into your local
Radio Shack store for standard lubrication and simple preventative
maintenance by our service technicians.

Downloaded from www.Manualslib.com manuals search engine

 SCHEMATIC DIAGRAM

C401
1/50- , IC 401 DOLBY IC LM 1011N 16 Q104 Q105
LINE IN
R101 5 5. 2SC458 2SC458
Q101 2SC1335 LINE
Lch .7 NeiMI MI 15151 PO W1115..=31 5.87 1.3611.38 4.93 4.s Cl or HIT9014 QrHIT9014
P 566 or HIT9014N 7 3 4 I 8 10I I 12 13 14 • 9 4
0134 R3I3 0 9 0 O 0 0
LINE wc- °C411 5.75
MAA • 10/16 , C413 R404 R119
IN R201 RI03 820 C4-02-11150P 270K RI 17 3.3K
/LINE LINE R102 8.2K D4 2 11+ TP103 100K t
R ch ± C412 10/16
820K
MIC • Rch • - REC. I-•-o HZ 12 C3 C409
or XZ 142 4700P 10/16
R407 O
11:1
LEVEL 270K CI 14 CII5
0.68 C102 or W2 120
R401
J101 C101 50K(A) R403 D401 1/50 100 10
27110/16 6.83
R203
MIC 16 3.36 47K 15 2076
or
R406
60K
C4I6 • _ n+ RI22
m R202 8.2K 10/16+ Cm VR101 033
Lch MIC. MI881/ 16 L
l OMPX401 0 I 1 0 MPX 402 • C4971408
C4I4 152473
/50 - '60417 150
1C 8206 +F__ 0.047 R405 RII8 RI20 RI21

I.
R104 600 -C415 220/16
0.001 68 85B 19E1 C40' 270K 27K I.5K 270 8123
.68 =73IC .Z2,6 P SI-4 4700 P .
R4 8 ; 0.027 0.1 Lch
39
J 201 •
Q201 C132 ti LINE OUT
R ch C108 zz2
_ RIII I.5K C405 H1
HIT 9014 1000P P R402 1°1116 ÷ --
0.06 220/16 I
MIC. R107 180 5.76 •
CII7
8204 6106 5.6K TP102 SI-3
68 68K 8112 RI28 0.001
6.8K 8126 R144 6.35
4'47 Ci°910/16 3.96 CI23 10/16 82K C129 D103
1 6373 C118 100K 2. /50 08105 I N60
R105 C105 RI 15 CI27 RI34
TP101 0 220P 15K 2K
VRI03 5K •
10 10/16 4.67 3.3K
RI 13 L102 CI20 MAAA ++16261
4.7mH 10/16
8.2K 0.56 **3 00104 20K
0.59 8109 8.101125 -,- C122 C121 CII9 LEVEL
206 RI t3 RI30 R124
R. P.. H (0,02I 82K 0103 L101 I5mH CI26 0.033 i
C:)11
2906 Q107 METER zz CII6
212(1 815 0.0012 3.9 K 0.518 2.2K 4.7/25
C104 -4110 2SD467
VR102 RI27 -':RQI245M6
-820P R108 R110 D101 I CI25 •I'e 8132 1.2K 112K 6.86
120 680 - 22/16 470P g la, 3.36 0102
152076 i2
152076
Z,,3
or 152473 or
• •
S1-5 :0
CI01232 0214231r, 2SC1335 ] R116 0315
R131 2SC458 01 C315
9014NOr FIIT9014N 156 1M
HI 15K or HIT9014 10 + 1/50

---41-v V JI02
R314 47K H. P.
RI35
R ch 8.2
• R235
R ch • 8.2

VR106
2006
R303 33 Bias SW
51-2

2301- D304
R312
7 22
WA
S4 DOLBY SW.

S3 EQ SW
Q301 Fe S2
F613 2SC1368
S5 5816-2 x4 ON 0 OFF
6302 AC 120V 60Hz TI or MR9602 •I
39K Q302 Fe Cr
L301 for USA,CANAD
(POWER SW. 2SCI419
C301 I R305 R3I0 R3I I
8307
1500P C303 4, 180 18306 S6 1.56 I.5K
1302 680 PL I PL2 4.7 Omni M
0.018 1.022 = 220/16
d31
E. H 8308
AC 240V 50Hz 270
LED for AUSTRALIA
REC.
IND. UK • + C308 100
0.45 C304 C305 C3II
AC 220V 50Hz C306 = 7'470/25
R301 0.012 100/16 d307.7. C309 + MOTOR 1/50
f or EUROPE 0.022 C3I0
0.022
IO
I + C316 100/16
for EUROPE AC 100V 50,60Hz for JAPAN
• 0 0-
D305
47°/16 - 470/16
•

HZ- 12 - C-3
or XZ142
SWITCH NOTE:
SI -R/P SW (.1) RESISTANCE VALUES ARE INDICATED IN OHMS (K= 103 ohms, M=I06ohms).
S2- BIAS SW (2) CAPACITANCE VALUES ARE INDICATED IN pF ( PF = I0-6pF).
S3- EQ SW (3) IN VALUE MAY BE CONSIDERABLE FOR ASSURING BEST PERFORMANCE ON EACH UNIT. (.5e)
S4 - DOLBY SW (4) ALL RESISTANCE AND CAPACITANCE VALUE ON R-ch ARE SAME AS ON L- ch.
S5- POWER SW (5) VALUES IN I I ARE VOLTAGES.

S6 - MuT1 NG SW

Downloaded from www.Manualslib.com manuals search engine

 RADIO SHACK LIMITED WARRANTY
This equipment is warranteed against defects for 1 year from date
of purchase. Within this period, we will repair it without charge for
parts and labor. Simply bring your sales slip as proof of purchase
date to any Radio Shack store. Warranty does not cover transporta-
tion costs. Nor does it cover equipment subjected to misuse or
accidental damage.
This Warranty gives you specific legal rights and you may also have other
rights which vary from state to state.
We Service What We Sell
pct\

RADIO SHACK M A DIVISION OF TANDY CORPORATION

U.S.A.: FORT WORTH, TEXAS 76102

CANADA: BARRIE, ONTARIO L4M 4W5
TANDY CORPORATION
AUSTRALIA BELGIUM U. K.
280-316 VICTORIA ROAD PARC INDUSTRIEL DE NANINNE BILSTON ROAD,WEDNESBURY
RYDALMERE, N.S.W. 2116 5140 NANINNE WEST MIDLANDS WS10 7JN

7A9 PRINTED IN TAIWAN

Downloaded from www.Manualslib.com manuals search engine