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1722 W

This document is a service manual for a stereo tape recorder model 1722W. It includes specifications for the tape recorder such as a track system of 4-track 2-channel stereo, a reel capacity up to 7 inches, tape speeds of 7-1/2 and 3-3/4 inches per second, and wow and flutter specifications. It also provides sections on dismantling the unit, mechanism adjustments, head adjustments, amplifier checks, resistance measurements, and component views.

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0% found this document useful (0 votes)
215 views46 pages

1722 W

This document is a service manual for a stereo tape recorder model 1722W. It includes specifications for the tape recorder such as a track system of 4-track 2-channel stereo, a reel capacity up to 7 inches, tape speeds of 7-1/2 and 3-3/4 inches per second, and wow and flutter specifications. It also provides sections on dismantling the unit, mechanism adjustments, head adjustments, amplifier checks, resistance measurements, and component views.

Uploaded by

saeedbhutta8910
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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ae

STEREO TAPE RECORDER

mopeEL 1722W

ALSO APPLICABLE TO MODEL 1722L


STEREO TAPE RECORDER

SECTION 1 SERVICE MANUAL ....... sigeteaternateis tentiefes, OS


SECTION 2 PARTS LIST ................... 0..-0.2--- 20
SECTION 3 SCHEMATIC DIAGRAM.................... 40
7 i

a
SECTION 1

SERVICE MANUAL

TABLE OF CONTENTS

L SPECIFICATIONS: « 2s. caiccenigie bebe a bes det ehh Mobi as tases Gees tee 4

Il. MEASURING METHOD 2202 e eee eee


.......... ete
...-. teens
0- 6
1. TAPE SPEED DEVIATION ........... 2... eee eee ne ete 6

2. WOW AND FLUTTER ...... 2... eee ee teen eee 6

3. FREQUENCY RESPONSE .......-. 0 eee eee eee eee 6

4. SIGNAL TO NOISE: RATIO 122. dd hie Sioltal tdacee eb eran eR eheee eS sk:cng BS eee Bas 6
nett
5. TOTAL HARMONIC DISTORTION FACTOR ...... eee eee
.-....
0200 7

6. CROSS TALK (Cross talk between the tracks) ......02 eee eee eee eee
.....0 7
7. ERASE RATIO .. 1... eneene ee eee tt eee 7

8. POWER OUTPUT... ee eee een ees 7

Hl. DISMANTLING OF UNIT .... 02020


.... e cee .... eet . eae 8
IV. MECHANISM ADJUSTMENT ------ 2-20-2000 c eset cere c treet entrees testes 9
ADJUSTMENT ig aa asa ierPaneee Spb ca ate Vain he)Griese Ob TS eAD eel S ecR-Rh One) o.wh aleco Seine aa 9
I PINCH WHEEL

ee eee ee eres
........-..---.5e
ADJUSTMENT 11
2. SUPPLY REEL TABLE TENSION
REEL TABLE TENSION ADJUSTMENT ........... eee eeee
-------+ 11
3. TAKE UP
..........-.---- 12
4. FWD/REC MODE MECHANISM CHANGE AND ADJUSTMENT
...... eee eee eee eee .
...--- eens 12
5. DRIVE BELT POSITION ADJUSTMENT
..........---- ee eee renee -5 eee 12
6. FLYWHEEL LOOSE PLAY ADJUSTMENT
7. ADJUSTMENT OF IDLER #2 POSITION
AT FAST FORWARD MODE bBo Ral aap etBatata ea Za 14
SHUT-OFF OPERATING POINT ADJUSTMENT ............-..-. 14
8. AUTOMATIC
V. HEAD HEIGHT ADJUSTMENT 0000-...
........ c eee ..06
te .
tenes 15
1. HEAD HEIGHT ADJUSTMENT ...... 2ee eee...eee ..0
ee -eee 15

2. HEAD SLANT ADJUSTMENT ...eee


2-22 cece eee
...... -.-eee 15

3. RECORDING/PLAYBACK HEAD AZIMUTH ALIGNMENT ADJUSTMENT ....... 16

Vi. -AMPLIFIER. (se ieee 26 dag hh he PIS Oe en tee gigas See eet 17
1. RECORDING BIAS FREQUENCY ..........CHECK .-.-2
eee eee eee eee 17

2. FREQUENCY RESPONSE CHECK ......-.. 00-2 cece ee eet tent eee 17

3. RECORDING BIAS VOLTAGE CHECK .. «1... ee e eee 17

4."BRASE° VOETAGE:. «0 cock coed pie ee Wie a od Be 2 aa eS ese aE dg aE SOS 2S Ge 17

5. HUM ALLEVIATION COIL ADJUSTMENT ........ eeee ..


0-2 .-.. eee 17

VIL D.C. RESISTANCE OF VARIOUS COILS .............0-02 5-062 eee 18

VIII. COMPOSITE VIEWS 0cece e-2-0


OF COMPONENTS. .............-- ree eens . 19
I. SPECIFICATIONS

An asterisk next to a figure indicates the minimum guaranteed performance.

TRACK SYSTEM 4-track 2-channel stereo/monaural system. —-- =a


REEL CAPACITY Up to 7” reel
TAPE SPEED 7-1/2 and 3-3/4 ips. +2% (*4+3%)
WOW AND FLUTTER Less than 0.14% (*0.15%) R.M.S. at 7-1/2 ips.
Less than 0.18% (*0.20%) R.M.S. at 3-3/4 ips.
TOTAL WOW AND FLUTTER Less than 0.22% R.M.S. at 7-1/2 ips.
(Scotch #175 TAPE 3,000 Hz recording and playback)
FREQUENCY RESPONSE 1,000 Hz -16VU Recording, measured at speaker output
WIDE RANGE TAPE 30 to 21,000 Hz (*50 to 20,000 Hz)+3 dB at 7-1/2 ips.
40 to 15,000 Hz (*50 to 12,000 Hz)+3 dB at 3-3/4 ips.
LOW NOISE TAPE 30 to 18,000 Hz (*50 to 18,000 Hz)43 dB at 7-1/2 ips.
40 to 13,000 Hz (*50 to 10,000 Hz)+3 dB at 3-3/4 ips.
DISTORTION FACTOR Less than 2% at 7-1/2 ips.
TOTAL DISTORTION FACTOR Less than 3% at 1,000 Hz “0’’VU recording at 4 mV mic Input,
Output 2W and Tone Control Max using Scotch #211
SIGNAL TO NOISE RATIO Better than 50 dB (*47 dB) at 10 dBm output and
Tone Control Max (from Speaker Out)
TOTAL SIGNAL TO NOISE RATIO Better than 43 dB at 10 dBm output and Tone Control Max.
(from Speaker Out)
CROSS TALK Better than 60 dB (*55 dB) Monaural (Mic input 4 mV,
1,000 Hz +3 VU recording, measured at line output)
Better than 45 dB (*43 dB) Stereo (mic input 4 mV,
1,000 Hz +3 VU recording, measured at line output)
ERASE RATIO Better than 70 dB (*65 dB) 1,000 Hz +3 VU recording
INPUTS Volume at maximum, 1,000 Hz “0” VU indication
MIC INPUT More than 0.5 mV
LINE INPUT More than 70 mV
DIN INPUT More than 70 mV (High)
More than 5 mV (Low)
OUTPUTS LINE OUTPUT OV (volume min) to 2.3V (volume max) using a 250 Hz eel
“0” VU pre-recorded tape at 7-1/2 ips.
DIN OUTPUT 1V
PHONE OUTPUT 100 mV at 82 each CH.
SPEAKER OUTPUT 3W/82 each CH.
*More than (2W/2W) continuous power at 82
RECORDING BIAS FREQUENCY 63 kHz+8%
BIAS LEAK Less than -20 VU measured at line output
HIGH FREQUENCY DEVIATION With 2 dB using an 8,000 Hz 3-3/4 ips. pre-recorded tape at
7-1/2 ips. Tone Control Max
RECORDING CAPACITY 2 hours stereo recording using a 1,200 ft. tape at 3-3/4 ips
i
i
“9 i FAST FOWARD AND REWIND TIME 80/100 sec. using a 1,200ft. tape at 60/50 Hz
MOTOR 2-4 pole induction 2-speed motor.
type: IC-16Y
Revolutions: 1,790/1,490 r.p.m. at 60/50 Hz (Low Speed)
3,580/2,980 r.p.m. at 60/50 Hz (High Speed)
HEADS RECORDING/PLAYBACK HEAD Type: P4-150 Gap: 2 microns
Impedance: 1,25022415% at 1,000 Hz
D.C. Resistance: 912
ERASE HEAD Type: E4-200 Gap: 0.6 mm
Impedance: 2002+5% at 100 kHz
D.C. Resistance: 22 :
eee

TRANSISTORS 2SC458LG(B) (C)... 4 2SCLOTSTSD) . 4


2SC711 (D) (E)... 4 28C1312 (F) (G)...2
2SC968 (3) (Red)... 2
IN34A ... 2 10DC-1 (Blk) ...1 :
DIODES
10DC-1 (Red)... 2
SPEAKERS 2 built in (S” x 7’) Oval speakers
Impedance: 82
POWER SUPPLY 100 to 240V A.C. 50/60 Hz
120V A.C. 60 Hz for CSA/UL Models
220V A.C. 50 Hz for CEE Models
POWER CONSUMPTION SOW
DIMENSIONS 1722W 358(W) x 360(H) x 248 (D)mm_= (14” x 14.1” x 9.8")
1722L 359(W) x 366(H) x 248 (D)mm__—((14.1"" x_ 14.4" x 9.8")
WEIGHT 1722W 13.2 kg (29 tbs.)
1722L 14.0 kg (30.8 Ibs.)

NOTE: Specifications subject to change without notice.

ee em
H. MEASURING METHOD

1. TAPE SPEED DEVIATION 3. FREQUENCY RESPONSE


a Line Audio
1722w (Output Input Frequency Frequency
Counter Oscillator

Fig. 1

As shown in Figure 1, connect a Frequency Counter


to the Line Output of the recorder. Take a
frequency counter reading at the beginning, middle, High Sensitivity
and end of tape winding during playback. The V.T.VM.
maximum value of these respective readings will
represent tape speed deviation. Fig. 3

1) Connect the various instruments as shown in


2.WOW AND FLUTTER Fig. 3 and supply a 1,000 Hz sine wave signal to
the Line Input of the recorder from an Audio
Wow and Frequency Oscillator through an Attenuator. Set
Flutter Meter recorder to “REC” mode and turn recording
level control volume to obtain “O” VU meter
Fig. 2 reading.
2) Under conditions described in 1) above, readjust
Method A Attenuator so that the Line Input is -16 dB, and
As shown in Fig. 2, connect the Line Output of the record 50 to 18,000 Hz spot frequencies.
recorder to the Input of a Wow and Flutter Meter. 3) Rewind tape and playback from the beginning.
Use a 3,000 Hz pre-recorded test tape and take a Take V.T.V.M. spot frequency readings and plot
wow and flutter meter reading at the beginning, values on a graph. fogs
middle, and end of tape winding. The maximum ope,
value of these respective readings will represent the NOTE: When measuring frequency response, new
wow and flutter. tape should be used.

Method B
Supply a 3,000 Hz sine wave signal from an Audio 4. SIGNAL TO NOISE RATIO
Frequency Oscillator and make a recording on a Speaker
blank tape at the beginning, ‘ middle, > and end of tape Output
pu Input
npu
. rae
winding. Rewind and playback tape. Measure wow 1722W ee eed a ae
and flutter with a Wow and Flutter Meter. (The aches
ad wow and flutter value of Method B will be close to
| 2 times of Method A) Fig. 4

Connect the various instruments as shown in Fig. 4


and playback a 250 Hz “0” VU pre-recorded test
tape and adjust volume control to obtain +10 dbm
V.T.V.M. reading. Then remove the tape and measure
the noise level under the same condition. Convert
each of the measured values into decibels.
5. TOTAL HARMONIC eh 7. ERASE RATIO
As shown in Fig: 4"8@Minect a High Sensitivity
V.T.VM. to the Line Output of the recorder.
Playback a virgin tape and take a V.T.V.M. reading
of the output level. Next, record a 1,000 Hz sine
wave signal at +3 dB, then playback this recorded
signal and take a V.T.V.M. reading of the output
level. Next, using this pre-recorded tape, record
under a non-input condition and take a reading of
the noise level output of the erased signal and obtain
Distortion a ratio between the two from the following formula:
Meter

Fig. 5
Er =20 log (dB)
2— 1

1) Connect the various instruments as shown in


where, Er = Desired erase ratio (dB)
Fig. 5. Load a Scotch #211 tape and set Tone
Eo = 1,000 Hz signal output level (V)
control to “MAX” position.
E, = Non-input signal recorded level (V)
2) Record 4 1,000 Hz sine wave signal at “O” VU.
E, = Virgin tape noise output level (V)
Playback the resultant signal and measure the
overall distortion factor.

NOTE: 1) At this time, Distortion factor of the . POWER OUTPUT


Audio Frequency Oscillator must be suf-
Speaker
ficiently small. High Sensitivity
2) When measuring the distortion factor, V.T.VM.
new tape should be used.
Fig. 7a”
6. CROSS TALK (Cross talk between the
tracks) As shown in Fig. 7, connect an 8Q dummy load
resistor to the speaker output of the recorder and
connect this terminal to a High Sensitivity V.T.V.M.
— TAPE Playback a 250 Hz “0” VU pre-recorded test tape
DIRECTION and take a V.T.V.M. reading of the output level.
The resultant output can be obtained from the
Fig. 6 results of the above measurement by using the
following formula:

As shown in Fig. 6, first record a 1,000 Hz sine E?

wave signal on Track No.3 at +3 VU level. Next, P=-—= (W)


record under a non-input condition. Then, playback
the tape on Tracks No.3 and 4 through the B.P.F.
where, P = Desired power output (watts)
(band pass filter sensitivity ... 1 : 1) and obtain a
E = Measured voltage (V) (R.MS.)
ratio between the two from the following formula:
R = 8
Eo
C = 20 log (dB)
2—7—"1

where,
= desired cross talk ratio (dB)
E, = 1,000 Hz signal output level (V)
E, = 1,000 Hz cross talk level (V) Wl NLA
E, = Non-input signal recorded level (V)
I. DISMANTLING OF UNIT

In case of trouble, etc. necessitating disassembly, please disassemble in the order shows in photographs. Reassemble
—_—
in reverse order.

nal al guguguqugu glug gugugugugugTugTuqTug7g


a 1 :
»

PAUSE KNOB
sECHANISM: KNOBS

SCREWS
IV. MECHANISM ADJUSTMENT

CAPSTAN <x eee

PINCH ROLLER

Fig. 8

& a

Fig. 9

1. PINCH WHEEL PRESSURE MEASURMENT 2) In case @) and in Fig. 9 is not parallel,


_ check for the following.
(See Fig. 8) a. Rubber part of pinch wheel is worn. (Replace
pinch wheel)
Confirm the following prior to pinch wheel pressure b. Capstan or pinch wheel shaft is bent. (Adjust)
measurement: (See Fig. 9) ;
: ae
The part of the pinch wheel over which the tape by
NOTE: This condition may also be caused
passes is parallel with the capastan shaft. (represented
twisted tape or wow and flutter.
by @) and @) in Fig. 9)

1) As shown in Fig. 8, measure pinch wheel pressure


with a spring gauge by pulling the pinch wheel
away from the capstan and then returning.
Take a reading of the spring gauge indication at the
time the pinch wheel contacts the capstan. Correct
pinch wheel pressure at this time is within 1,150
to 1,200 gr.
per

eal
ST 2

; ee

cM iss ia

pe taHaBe

Fig. 10
i

TAKE UP REEL TENSION ©)! " SUPPLY REEL-TENSJON

<=
60mm

Fig. 11

2. SUPPLY REEL TABLE TENSION 3. TAKE UP REEL TABLE TENSION


ADJUSTMENT (See Fig. 10 at left) ADJUSTMENT (See Fig. 10 at right)
table
Clutch felt (2) is used on the bottom part of Clutch felt (2) is used on the bottom of reel
rewind pulley (3) and reel table base plate (1) to base plate (1) for the purpose of preventing excessive
protect the tape from excessive tension at rewind tension from being applied to the tape and tape
mode. stretch from occuring at Fast Forward mode.
For measuring the tension of each reel, it is ideal to
use on empty 5” reel on which a tape has been wound Check and Adjustment (See Fig. 11- )
to cover a 60 mm diameter as shown in Fig. 11. (a) To measure the tension between felt (2) and
rewind roller A (10), load the tape and at
Check and Adjustment (See Fig. 11- @) ) forward mode, gently pull end of tape upward
(a) At rewind mode, the tension of felt (2) part with a spring gauge (Fig. 11- ) Ideal tension
shown in Fig. 10 should be from 400 to 500 at this part is 400 to 500 gr.
grams when the tape is gently pulled upward To adjust, increase or decrease the number of
with a spring gauge. If adjustment is necessary, washers used. Also, if rotation is not smooth
this can be accomplished by increasing or decreas- when turned by hand, replace felt.
ing the number of washers used. (b) Felt (11) on take up roller D (12) is for the
(b) Felt (5) is for the purpose of applying suitable purpose of clutch between take up roller A
clutch (back tension) at Forward and Recording (10) and take up roller D. Measure the tension
modes. Measure in the same way as outlined at this part in the same way as outlined in
in item (a) and adjust by strengthening or paragraph (a).
weakening the tension by increasing or decreas- Ideal tension is 150 to 180 grams. Adjust by
ing the number of washers respectively to obtain increasing or decreasing the number of washers
80 to 100 grams of tension. used.
(c) At Fast Forward mode, the tension (free tension) (c) At Rewind mode the tension (free tension)
should be 15 to 20 grams. To adjust, strengthen should be 15 to 20 grams. Adjustment can be
or weaken tension by increasing or decreasing made by increasing or decreasing the number of
the number of washers and by moving Pulley washers used and by moving set sleeveB (14)
(9) up and down and tightening to fixed position up and down and repositioning.
with screw.
REC, LEVER2
LEVER SPRING
)
cae| pS
eat

CC

2 6)
“~~ CAM ROLLER A
M1T,2 LEVER !

RECémprwo. {7 \T

CLILETESSSSSLLETLLEETED
ESSE

Fig. 12

4, FWD/REC MODE MECHANISM CHANGE 5. DRIVE BELT POSITION ADJUSTMENT oe


AND ADJUSTMENT —_
ww.

If drive belt position adjustment is necessary, with


OPERATION the powe turned ON, insert a U shaped washer in
(1) Set REC/PLAY Lever from FWD to REC the place indicated in the figure so that the drive
position. belt come to the center of the motor pulley as
(2) Cam @) pushes Cam Roller ©) and Arm ® as shown in Fig. 13.
illustrated by the dotted lines in Fig. 12.
(3) Arm pulls Lever Spring shaft @) as
indicated by the arrow mark. 6. FLYWHEEL LOOSE PLAY ADJUSTMENT
(4) Then, Recording Levers 1 and 2 (@ and ©)
a set Slide Switches SW-1 and SW-2 to recording With a minus driver, turn bearing and adjust gap to
| condition. obtain a 0.3 mm loose play between the Steel Ball
In the event that the Recording Levers (REC and Bearing when the flywheel is moved as indicated
LEVER 1 @) , REC LEVER 2 () ) do not by the arrow mark (<=) in Fig. 14.
push the Slide Switches perfectly, too much Fix at ideal position by turning nut to right (see
loose play exists. figure).
* Vibration or the inability to record is sometimes
caused by imperfect slide switch operation.
Adjustment: Adjust position of Recording Levers
1 and 2 while checking to confirm
that the levers are pushing the Slide
Switches perfectly.
Fix at adjusted position with screws
@® and @

=>) U-TYPE WASHER

eee in eae
LILLE APTI ZT ZAI LP
DLT I IO
TrID

Fig. 13

A NUT

Yd} Von
Neat

FLYWHEEL

= Cerra

Fig. 14
TAKE UP ROLLER A

IDLER WHEEL #2

KNURLING PULLEY MECH. KNOB

SG
ASAAS
RA

AO,
INDICATES F. FWD. LEVER | CAM C ADJUSTING SCREW ©
—-——-- INDICATES STOP Fig. 15

PINCH ROLLER

MICRO SW,
CUT POINT
A LEVER SHAFT

Fig. 16

7. ADJUSTMENT OF IDLER #2 POSITION 8. AUTOMATIC SHUT-OFF OPERATING


AT FAST FORWARD MODE POINT ADJUSTMENT

Move Cam © shown in Fig. 15 up and down as Move Micro Switch as indicated by the arrow mark
indicated by the arrow mark (~>) in the figure and (~=) in the figure and fix Screws (a) and ©) so
adjust Lever ©) height so that Idler #2 contact that when the Automatic Shut-off Switch is at ON
between Take Up Roller A and the knurling Pulley position, the Micro Switch is perfectly turn off at
is uniform when the F.FWD/RWD Lever is set to position at which the gap between A lever shaft
F.FWD position. Fix at adjusted position with and AS lever Stopper is about 5 mm as shown in
Adjustment Screw () Fig. 16.
During operation, confirm that the rotating position
of Idler #2 is ideal.
V. HEAD HEIGHT ADJUSTMENT

oo _
HEIGHT ADJUSTMENT (HEIGHT ADJUSTMENT
SLANT ADJUSTMENT. LANT ADJUSTMENT
@,® ©,@

3 watt.

ERASE REC./P.B.
HEAD HEAD
Fig. 17

As head adjustment is of utmost importance to the 2. HEAD SLANT ADJUSTMENT (See Fig. 17)
operation of a tape recorder, please be especially
careful in making these adjustments. Also please Adjust Adjustment Screws @) , ) , ©), and (@)so
check the tape travel system. that the erase and recording/playback heads contact
If the tape travel system is faulty, because. this the tape at the proper angle in relation to tape
causes the tape to twist, etc., be sure that reel travel.
height adjustment is precise.

1. HEAD HEIGHT ADJUSTMENT

1) Erase Head
Loosen Screws (a) and ©) and adjust the erase
head height. Tighten screws. At position at
which the upper edge of the tape is 0.15 mm
lower than the upper edge of the erase head
core.
2)Recording/Playback Head
Adjust with Head Height Adjustment Screws ©)
and @) so that the upper edge of the tape and
the upper edge of channel 1 head core are the
same height.

a
1722W/L LINE OUT

HIGH SENSITIVITY V.T.V.M.

Fig. 18

3. RECORDING/PLAYBACK HEAD
AZIMUTH ALIGNMENT ADJUSTMENT
(See Figs. 17 and 18)

1) Playback an Ampex Alignment Test Tape (8,000


Hz, 3-3/4 ips recorded) at 7-1/2 ips.
2) Connect a High Sensitivity V.T.V.M. to the line
output =iput as shown in Fig. 18 and adjust Screw (€) to
obtain maximum V.T.V.M. indication at -10 dBm
range.
3) Repeat Items 1 through 3 two or three times
for optimum performance.
VI. AMPLIFIER

Connect the various measuring instruments as shown


inFig. 19. . =r"

1. RECORDING BIAS FREQUENCY CHECK


REC/P.B. reo] (See Fig. 19)
1) Set recorder to recording mode.
2) Connect a Frequency Counter to point @ of
the Recording/Playback Head as shown in Fig. 19
ERASE HEAD | and read indication.
* Specified recording bias frequency is 63 kHz+8%.

.FREQUENCY RESPONSE CHECK


Z HIGH SENSITIVITY
V.T.V.M. 1) For measuring instrument connections, see Fig. 3.
Fig. 19 Set recorder to recording mode and supply a
1,000 Hz sine wave signal to the line input from
an Audio Frequency Oscillator. Record at 1,000
Hz -16 VU and then switch the Oscillation
frequency of the Audio Frequency Oscillator
to 10,000 Hz and record.
2) The Volume Controls must be set to. obtain a
VU meter indication of -16VU at 1,000 Hz.
The Tone Controls should be set to maximum for
3-3/4 ips. tape speed and to about 4 or 5
position for 7-1/2 ips. tape speed.
3) The V.T.V.M. indication should display equally=* ~~
flat frequency response at the two frequencies
in items 1) and 2) (both channels).

REC./P.B. HEAD . RECORDING BIAS VOLTAGE CHECK


Fig. 20 Check the voltage at points © and @ shown in
Fig. 19.
Correct recording bias voltage is about 13V A.C.

_ ERASE VOLTAGE
Correct erase voltage is about 43.5V A.C.

. HUM ALLEVIATOR COIL ADJUSTMENT

(Refer to Fig. 4 of Measuring Method)


Connect a High Sensitivity V.T.V.M. to the Speaker
output Terminal through an 8 dummy load
resistor, Lea d.a -25
Hz “0” VII 0 recor ded.
test tape
and set Tone Controls to Maximum . _Playback the
Set Deck to P.B. mode testtape and move hum alleviator coils as indicated
by the arrow marks in Fig. 20 while observing
V.T.VM. indication and position at place where
V.T.V.M. indication is minimum. (Must be better
than 47 dB). ;
Vil. D.C. RESISTANCE OF VARIOUS COILS

D.C. resistance value is average value.


- — —— -

Designation D.C. Resistance

Between Red-Vit
Between Gry-Vlt
Main Motor
Between Wht-BIk 14002
Between Ylw-Bik

Primary 150Q

-
Driver Transformer N24-6847 AT
Secondary 700

Between 1-3 0.32


Oscillation Coil Between 4-6 0.72
Between 7-9 8.20

_ Erase- Head 22

Recording/Playback Head

Hum Alleviator Coil 20T 0.522

Power Transfomer LST-1 (Refer to diagram shown below)

5 240V_BLU

Chart 1
VIII. COMPOSITE VIEWS OF COMPONENTS

1. PRE-AMP. P.C. BOARD (LS-5209) , =o

iC) = o =
xO => 3 ane ae
xs .
oS a) =
=
x5$x=
: a

Fo wy > Oban
eS
~2
a
us =
us 5 Ww RS
Le °r
L w
a 2 a
a Zz we ww o
S e dw j= wn
=e
38
FS e e oZ
PS o>
E> 2Ee
5>

sTRI,2 iX= ale ae ain cls 2% ade eae.


OSC 4SBLGICNB ESS

BLEAWHTTO) SPEAKER SW.


Swio)

FROM OSC.
CTION
{LS-5207)
TCH.
FROM TRACK
SELECTOR SW(SW7) Feeor)

~ FROM POWER
SUPPLY SECTION JO LINE OUTPUT
(L$ -5207) JACK(J8 ,J 10)

FROM TRACK
SELECTOR SW(SW7) TO RIGHT CH.
POWER SECTION
{LS-5207)
TO HEAD PHONE ...-.
JACK ST
TO SPEAKER SW,
(swio)

vt
>

JIO
JACK

CH.
RIGHT
FROM
JACK
MIC/PHONO TOLINE
OUTPUT CH.
RIGHT
CH. M2
METER
VU
RIGHT
TO
A s = =
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~ 4 5 eala ” =) a a
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~ SECTION 2

PARTS Lust
TABLE OF CONTENTS

FIG HEAD BLOCK <. eee, ee


FIG REEL TABLE BLOCK ..........:..... ee aes
FIG. MOTOR/BELT CHANGE LEVER BLOCK,
FIG FLYWHEEL BLOCK. ..... Si eel ateh deh
FIG SWITCH BLOCK. .....:...00.0e cece cabees
FIG MECH. ASSEMBLY BLOCK
FIG PRE-AMP. P.C. BOARD (LS- 5209) BLOCK . 2...
FIG An MAIN
hh
On
WN AMP./OSC./POWER SUPPLY
'P.C.. BOARD (LS-5207) BLOCK °oe Sere
FIG. 9 AMP. ASSEMBLY BLOCK
FIG. 10 FINAL ASSEMBLY . BLOCK ©
INDEX
HOW TO USE THIS PARTS LIST. — -

1. This parts list is compiled by various individual blocks based on assembly process.
2. When ordering parts, please describe parts number, serial number, and model number in detail.
3. How to read list.
-—The reference number corresponds with illustration or photo number of that particular
parts list.
This number corresponds with the Figure Number.
This number corresponds with the individual parts index number
in that figure.
‘A small “x” indicates the inability to show that particular part
«; in the Photo or Illustration. ;
12-1 1 5x - Schematic Diagram Number of individual
manufactured part.
(not required for parts order)
en of particular part required.

Ref. No. Parts No. Description Schematic No. Q’ty ”

FLYWHEEL BLOCK #13


12-115x 800425 Flywheel Block Assy. Comp. RDG #13 1
“12-116 244506 Flywheel Only RD-233 1
12-117x 244754 Felt, Flywheel RD-275 1
12-118 251324 Main Metal Case RD-236 1
12-119 253080 Main Metal RD-237 1

. The symbol numbers shown on the P.C. Board list can be matched with the Composite Views
of components of the Schematic Diagram or Service Manual.
. The indications of Resistors and Capacitors in the photos of P.C. Board are being eliminated. 7
a>
oer

. The shape of the parts and parts name, etc. can be confirmed by comparing them with the parts
shown on the Electrical Parts Table of P.C. Board.
. Both the kind of part and installation position can be determined by the Parts Number. To
determine where a parts number is listed, utilize Parts Index at end of Parts List.
It is necessary first of all to find the Parts Number. This can be accomplished by using the
Reference Number listed at right of parts number in the Parts Index. (meaning of ref. no.
outlined in Item 3 above).
. Utilize separate “Price List for Parts” to determine unit price. The most simple method of
finding parts Price is to utilize the reference number.
Stopper Type

(
Because the indication of resistors
and capacitors in the P. C. Board
photos are being eliminated, please
f
Insulator Type
confirm parts name and shape by
comparing them with the parts
shown in this table. Solid Resistor Carbon Resistor

Wire-Wound Resistor Thermister Enamel Resistor

Rin
Sg, a
F
MP Capacitor (Tubular Type) Plastic Capacitor Mylar Capacitor VFM (Hi-Q) Capacitor

5 Vertical Type

sae
Mylar Capacitor Tantalum Capacitor Oil Capacitor (Tubular Type) Styro] Capacitor

Vertical Type

(Tubular Type)

i
I
Metalized Mylar (Paper) Capacitor

Trimmer Condenser Semi-Fixed Volume

Ferri Inductor Transistor

Spark Quencher Diode (Silicon, Zener, Germanium)


FIG. 1 ILLUSTRATION OF ae
7 HEAD BLOCK —

i HEAD BLOCK
Ref. ae Schematic _,
No. Parts No. Description No. Q’ty pice #

-1x
1-1 BH482051 4-TR-LC Head Block Comp. LS-2, 3
: -
1-2 HZ392501 Head Base, LS (s/pin) - LS-0001
i 1-3
- HZ274195 Tape Guide No. 11 1630-19
1-4x ZW273745 Spring Washer M3
1-5x ZW601290 Nut M3
1-6 HZ392545 RH Angle Base LS-0003
1-7 HP375131 REC./PB. HEAD P4-150
1-8x ZS201508 Screw, pan head 2x4
1-9 ZS345914 Screw, round head 3x10
1-10 ZG382757 Angle Adjust Spring D RD-Al2
1-11x HZ393974 JI-MK Head Terminal Plate RC-89
1-12 HE384693 ERASE HEAD E4-200
1-13 HZ410984 Erase Head Base LF-0002
1-14 ZS201475 Screw, pan head 2x3
1-15x ZS344283 Screw, pan head 3x4
' : 1-16 HZ256432 Lifter Mt. Table B, w/pin LM-4
1-17 ZW345442 Washer (Nylon) D4.2x9xiIt
1-18 ZG389283 Tension Spring, LS LS-0005
4 1-19 ZW290283 ‘U’ Ring 2.85M 6-11
1-20 MZ301048 Lifter Spoke, 920 LM-12
.
1-21 EJ392567 Mold Socket SB-5202 (M Type) 31-7
1-22x ZW273881 Earth Lug M4
1-23. ZS202061 Screw, binding head 3x5 SB
WWNeE
eB
BP
ONN
NN
Ne
=
w=
Seem

1-24 ZS391588 Head Chassis Retaining Screw 1LS-1001 I


1-25 ZS413201 Screw, pan head 4x8 2
1-26 HZ247511 Head PropC 900-142 3

When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail. ————~—————___
FIG. 2. ILLUSTRATION OF ae
REEL TABLE BLOCK eSAcer =

REEL TABLE BLOCK


Ref. ee Schematic
No. Parts No. Description No. Q'ty

2-1x BR570802 Supply Reel Table Block Comp. LS-3


2-2x BRS5S70813 Take-up Reel Table Block Comp. LS-3
2-3 MT255712 Reel Table Disk B, w/shaft A XR-101
2-4x MT252112 Friction Cloth B 900-225
2-5 MT376110 Reel Table Rubber, CD-2 CD-201
2-6 MS255600 Reel Shaft B XR~103
2-7 MT297663 3R ‘O’ Ring 2.9x 1.65M 3R-139
2-8 MT255420 Reel Retainer 3R-102
| 2-9 ZG255633 Reel Spring 3R-109
: 2-10 MT255565 Reel Shaft Ring XR-177
2-11 ZW270088 ‘E’ Ring 1.9M 6-1-9
2-12 MR251460 Rewind Pulley 900-222
2-13. MT222366 Rubber Ring 900-234
2-14 2ZG227553 Spring G-2 (Left) 900-230
2-15 ZW260021 Washer (SUP) D6.1x10x0.13t
2-16x ZW260054 Washer (SUP) D6.1x10x0.25t
2-17x ZW260065 Washer (SUP) D6.1x10x0.35t
2-18 MT255870 Reel Table Thrust Retainer Pin 900-237
2-19x MT252101 Friction Cloth A 900-224
2-20 MR252066 Take-up Roller C 900-220
2-21 MT255971 Reel Table Spring Plate A 900-227
\ "
WWW
ee
ee
eee
eee
eee
t
2-22 MT438647 Reel Torque Adjust Thrust 7
D6.2x13x0.5t 101022 —
2-23. ZW231693 Thrust Washer, w/claw 900-235
2-24 ZW260021 Washer (SUP) D6.1x10x0.13t
2-25x ZW260054 Washer (SUP) D6.1x10x0.25t
2-26x ZW260065 Washer (SUP) D6.1x10x0.35t
2-27 MT255870 Reel Table Thrust Retainer Pin 900-237 me
=
NNN

2-28 MT438592 Reel Torque Adjust Thrust 2


D6.1x10x0.3t — 101017 1
2-29 MT438603 Reel Torque Adjust Thrust 3
D6.1x10x0.S5t — 101018 1
2-30x MT438625 Reel Torque Adjust Thrust 5
D6.1x10xit 101020 1
2-31 MT292386 Reel Meta) Mt. Parts. XR
(w/metal) XR-191 1
2-32 ZW437804 Flywheel Thrust A
D7.9x13x1t (Nylon) — 101024 1
2-33. MT255993 Reel Table Spring Plate C M8-207 J
2-34 ZW260065 Washer (SUP) D6.1x10x0.3t 1
2-35 MH270000 Retaining Pin D4 900-257 1
2-36 MR256094 Reel Table Pulley 900-239 ]
2-37. ZS434171 Set Screw, hexagon socket
4x7 (Cup/p.) : 1

2-38 MR252044 Take-up Roller A 900-218 1


2-39x ZG227542 Spring G-2 (Right) 900-230
2-40x MT255881i Reel Table Slip Plate A
(Deer Skin) MH-219 1
2-41 MR252077 Take-up Roller D (Lower) M8-204 1
2-42x MT255982 Reel Table Spring Plate B- 900-228 1
2-43 MT438614 Reel Torque Adjust Thrust 4
D6.1x10x0.8t 101019 1
2-44 ZW312693 ‘E’ Ring 4M 6-1-4 1
2-45 ZG414077 Spring F-4 CD-67 1
2-46 MT440313 Nylon Tube D12-L19 1
2-47 MT438636 Reel Torque Adjust Thrust 6
D6.2x13x1t 101021 1
i
yo. 2-48 MT228598 Set Sleeve B cD-66
; ; 2-49 7ZS434160 Set Screw, hexagon socket 3x3
(cup/p.) 1

When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail, ————————
Ne
FIG. 3. ILLUSTRATION OF MOTOR/BELT CHANGE LEVER BLOCK

5 am

4 = + } 4
lt
ik A at
: wy

: i]

<2 Q

4
| !
HE bi ®

u ‘ 1 Fo a
eZ i al A
16 1 cE je

12 4 f 7
ae : 4 ry | go
b> q
oy i |‘ =zCO ANG
ee i ii T
14
ers |
30 q
28 . i !
31 or 4
22

23 if |
| !
29 ‘ I

24 1
er

MOTOR/BELT CHANGE LEVER BLOCK


Ref. aA Schematic eae
No. Parts No. Description No. Q’ty

MOTOR BLOCK ; *
3-1x BM364320 Motor Block 16Y Comp. LS-1, 2,3 1
3-2x BM486663 Motor Block 16Y Comp. (CSA) LS-2,3 1
3-3x BM489137 Motor Block 16Y Comp. (CEE) LS-2,3 1
3-4 MZ448222 24 Motor Cover, w/metal 24X-781 2
3-5 MZ459178 24 Seal D 24X-786 i
3-6x MZ458594 Oil Felt D BS-7031 1
3-7x MZ453598 24 Seal C 24X-785 1
3-8x MZ458605 Oil Felt E BS-7032 1
3-9x ZS384131 Screw, round head 3x5 4
3-10 ZS427037 Screw, pan head 4x50,
w/washer 4
3-11 MH254316 24 Motor Prop B 24X-729 4
3-12 MZ254373 Motor Mt. Plate L 24X-733 I
3-13. MZ430334 Motor/R. Table B RC-112 1
3-14 MH254160 Motor Prop A 24X-730 2
3-15 MH254182 Motor Prop B 24X-731 1
3-16 ZS424056 Screw, pan head 4x10 4
3-17. ZS272395 Motor Prop Retaining Screw,
Mage’ wa £5 M-7 24X-732 1 7
3-18 ZS427026 Screw, countersunk head 4x10 2
3-19x MZ296144 24 Oil-cut 24X-735, 2
3-20x ZW222388 Rubber Washer 24X-739 1
3-21x ZW259885 Washer (PBP) D5.1x10.3x0.1t 1
3-22 MR336172 Motor Pulley B, 24L 24X-775 1
3-23 MR257984 Knurling pulley, w/sleeve 24X-740C 1
3-24 ZS413921 Screw, oval countersunk bead
3x15 1
3-25 MZ254068 Motor Out-side Shield 2 3A-770C 1
3-26x MZ292364 Motor Shield Plate B, XR
(CSA, CEE) XR-705 1

BELT CHANGE LEVER BLOCK


3-27x BL564107 Belt Change Lever Block (E) °
Comp. LS-3 1
3-28 ML217462 Belt Change Lever B (small),
w/roller AT-25 1
3-29 MZ248354 Belt Guide Stop, w/metal 4TR-222 1
3-30 7ZG465478 Brake Lever Spring KD-1092 1
3-31 ZS417150 Screw, pan head 4x6 1
3-32x ZG217394 Belt Change Spring B MH-125 i
3-33x ZW260054 Washer (SUP) D6.1x10x0.25t 1
3-34x ZW290283 ‘U’ Ring 2.85M 6-1-1 1

3-35 EC330401 MP/C. (Lug Type Uni/D.)


2+1uF 250WVAC 24-9-38 1
3-36x EC486630 MP/C. (Lug Type Uni/D.)
2uF 250WVAC (UL, CSA) 24-964 1
3-37 ZS323728 Screw, binding head 3x5 2
3-38 ER339805 Cement/R, H20B 450(K) 35-16-16 9
3-39x ZS4i3728 Screw, binding head 3x6
w/washer 1
3-40 ZW273756 Nut M3 1
3-41 MZ256882 Motor Fan D, w/boss MH-636 1
3-42 ZS476987 Set Screw, hexagon socket 5x4
(cup/p.) 1

When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail. ————————
7
FIG. 4 ILLUSTRATION OF ee
FLYWHEEL BLOCK ca

-
a

FLYWHEEL BLOCK
Ref. Schematic
No . Parts No. Description No. Q’ty

4-1x BF482040 Flywheel Block Comp. LS-2,3 1


4-2 MI296245 Flywheel 24 MH-202 1
4-3 MS481858 Main Shaft LS-2201 1
4-4 ZW447208 Flywheel Thrust B :
: D7.9xX9x13x0.5t 101025 1
4-5 ZS373577 Set Screw, hexagon socket 5x6
| (Flat/p.) 2
{ 4-6 MZ413976 Main Case B 24 Comp. 1630-205
! 4-7 MZ446635 Thrust Cap, Main Metal B2 LF-206 1
: 4-8 MH244710 Flywheel Fixing Pin 900-250 1
4-9x MZ586438 Main Metal Cap Felt A0414 1
4-10 MZ253113 Main Metal Cap B MH-208 . 1

4-11 MB256590 Doubie Face Flat Belt D=110 100912 i


4-12 ZW392681 Washer (Nylon) D8x1t
(without hole) 1
4-13 MV269965 Steel Ball D4 1
4-14 MZ585911 Shaft Supporting Plate LS-1204 1
4-15 MZ585900 Shaft Support LS-1203 1
4-16 ZW463410 ISO Nut #3 M5 1
4-17x ZS419736 Screw, binding head 4x6 2

When ordering parts, please describe Parts Number, Serial Number, and Modet Number in detail ——————————__
FIG. 5 ILLUSTRATION OF os
SWITCH BLOCK

SWITCH BLOCK
ai Parts No. Description ete Qty. 2 7°

§-1x BS601604 Switch Block Comp. LS-1,2,3


5-2 MZ316901 SW. Table A-2, SX (w/props) MR-201 1
5-3 ES601650 RWD Shaft, Y Type 25-8-10 1
5-4x ZS413728 Screw, binding ehad 3x6,
w/washer 2
5-5x ZW260133 Washer (Fiber) D6.1x10xi1t 2
5-6 MZ327341 Cap Trap Plate B SX-201 1
5-7 ZG227586 Spring K 900-214 1
5-8 MZ327352 Cam C-2 Sx-202 1
5-9 ZS413201 Screw, pan head 4x8 7
5-10x ZW434193 Washer (Nylon) D6.1x10.3x0.5t 1
§-11x ZW434215 Washer (Nylon) D6.1x10.3x0.3t 1
5-12 ES601672 Rotary SW. Y-133 25-7-42 1
§-13x ZW273802 Toothed Lock Washer M3 2
§-14x ZW273756 Nut M3 2
5-15x MZ316945 Nut Plate MR~-245 1
5-16 ML257128 Lover I, w/shaft 900-209 1
5-17 MR217203 Cam RollerA (Nylon) D12 900-153 1
§-18x ZW290283 ‘U’ Ring 2.85M §-1-1 2
5-19 ZS217877 Pause Lever Set Screw 900-136 = 1
5-20x ZW571072 Washer (Nylon) D6.2x13x0.125t 1
5-21 ZW416698 Nut M4 1
5-22x ZW273892 Toothed Lock Washer M4 1
5-23 MZ225720 SW. Table B-2, w/rec, lever M9-308 1
§-24 MR217203 Cam Roller A (Nylon) D12 900-153 1
5-25 ZW273881 Earth Lug M4 1
5-26x ZW260122 Washer (Nylon) D6.1x10xit 1
5-27 MZ317068 Amp. SW. Cam B MR-243 1
5-28 MH260425 Cotter Pin 1x10 1
5-29 MZ316956 Cam A-3 MR-242 1
5-30 MV270066 Steel Bail D8 1
5-31 MZ217271 Cam B (without tap) 900-206 1
5-32, ZG232121 Tension Lever Spring MH-143 1

5-33 ZG227485 Spring E 900-119 1


5-34 2ZG256937 Lever Spring LCS-205 1
5-35x MZ256814 Rewind Shaft Spacer M9-124 2

When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail. ———————_____
MECH. ASSEMBLY BLOCK een
Schematic Ref. Schematic
: ha Parts No. Description No. Q’ty No. Parts No. Description No, Q’ty

TAPE GUIDE BLOCK 6-66x ZW560801 Washer (Polyslider) *


6-1x BZ400948 Tape Guide Block Comp. LS-1,2,3° 2 D6.1x10x0.5t 2
6-2. MH204311 Tape Guide Prop #1700 AT-16 1 6-67 ZG205571 Idler Tension Spring MH-135 1
6-3. $Z465377 Tape Guide Table A LC-618 1 6-68 ZS413234 Screw, pan head 4x12 3
6-4 ZW231805 Tape Guide Washer (Large) 3A-356 2 6-69 MZ217708 Pause Lever Retaining Parts B 900-170 1
6-5 MV238117 Bearing SSR1950ZZSD52 1 6-70x ZW260054 Washer (SUP) D6.1x10x0.25t 1
6-6 S$Z465388 Tape Guide Table B LC-619 1 6-71 MZ327251_ G Lever Stopper, SX SX-n10 1
6-72x ZS349288 ISO Screw, binding head 3x5
SPEED CHANGE BLOCK w/washer 1
6-7x BZ482062 Speed Change Block Comp. LS-2, 3 1 6-73x EJ373623 Pin Contact 61116-1 52-1-1 1
6-8x MZ481612 Speed SW. Retaining Plate LS-223 1 6-74 MZ217113 Cam Stopper B RC-129 1
6-9 ES479496 Slide SW. S-2 25-3-67 1 6-75 ZW217102 Cam Stopper Insulator Washer 900-165 1
6-10x ZS425981 ISO Screw, binding head 3x3 1 6-76 ZS413245 Screw, pan head 4x15 2
6-11x ES481656 Slide SW. SSD02239 25-3-70 1 6-77 SB258478 Rec. Button (Red) 900-167 1
6-12x ZS481645 Screw, binding head 2.6x3 . 2 6-78x ZW413256 Washer (SPC) D3.4x7.8x0.St 1
6-13x ML481768 Speed SW. Interlocking Lever LS-2205 1 6-79x ZW260436 Cotter Pin 1x12 1
6-14x ZS231298 Graduated Screw C XR-5)4 1 6-80 ML217934 Supply Brake Comp. 900-113 1
6-15x HZ468281 Sensing Insulator Paper BS-2086 1 6-81 MT245215 Brake Rubber (Large) 900-163 1
: 6-82x ZW259942 Washer (Fiber) D5.1x10.3x0.5t 3
MECH.'‘ASSEMBLY BLOCK 6-83 ZG290384 UN Spring D 1630-108 1
6-16 MZ392490 Mech. Frame, LS (w/bush) LCS-27 t 6-84 ML251932 Take-up Brake Comp. 900-114 1
6-17 MH273295 Mech. Panel Prop, M-9 M9-302 2 6-85x MT376457 Brake Rubber (Small) M8-110 1
6-18x ZS414033 Screw, countersunk head 3x8 2 6-86 ZG227452 Spring D 900-118 1
6-19 MS257051 Lever FA Shaft 900-127 1 6-87 ML548280 Lever LF, w/lever E2 LF-1033 1
6-20x ZW413267 Flang Nut M4 2 6-88 ML300161 707 Lever A, w/metal LC-103 1
6-21 MZ257073 Lever FB Guide Base M9-103 1 6-89 ZW259918 Washer (SUP) DS5.1x10.3x0.25t 2
6-22x ZS417150 Screw, pan head 4x6 2 6-90x ZS201767 Screw, pan head 4x6, w/washer 2
6-23 ZG257095 Lever FB Vibration Proof 6-91 ML262337 Lever C3 M&10600 1
Spring M8-104 1 6-92 ZG217337 Belt Return Spring 4TR-224 1
6-24x MH248343 Belt Guide Pin 4TR-109 1 6-93 MZ260662 AS Lever Prop Base, w/prop 4TR-236 1
6-25 ZW413188 Nut M4 8 6-94 ZW273767 Earth Lug D3x20L 1
6-26 MS245463 Brake Lever Shaft 90-129 2 6-95 MZ210071 Auto. SW Plate Me4 1 acta he
6-27x MH245485 Brake Lever Pin (UL, CSA) MH-138 6-96 ES479485 Slide SW. S-1 366 Yee
6-28x ML308564 Belt Vibration Stopper 6-97 2ZS413166 Screw, round head 3x6 2
(UL, CSA) MH-137 1 6-98 ML257040 Lever FA, w/shaft 900-107 1
6-29x MZ518973 Shut-off SW. Barrier (CSA) LS-2207 1 6-99 MR217203 Cam Roller A (Nylon) D=12 900-153 1
6-30 MS260515 A Lever Shaft 900-126 1 6-100 ML295727 2-speed Motor Lever F, w/shaft M&-107 1
ZW273914 Spring Washer M4 2 6-101 ZG270358 F.B. Pull Spring M8-108 5)
6-31x
6-32 E0Q606071 Hum Backing Coil 20T 23-3-40 2 6-102 MI204423 Idler Wheel #2 1
6-33x EO609862 Hum Backing Coil 30T (CEE) 233-41 2 6-103 ML257163 Lever K, w/shaft 900-111 1
6-34 MZ237418 Hum Backing Coil Metal Fitting 6-104 ZG224796 New Spring D MH-42 1
(L Type) 8-103 2 6-105 ZW376391 Washer (Polyslider)
6-35x ZS432718 Screw, round head 3x22 2 D6.1x10x0.13t 1
6-36x ZW273745 Spring Washer M3 2 6-106x ZW432347 Washer (Luminar)
6-37x ZW273756 Nut M3 2 D6.2x13x0.125t 2
6-38 ZS323728 Screw, binding head 3x5 6 6-107 ZS223233 Fulcrum Screw A 900-135 1
6-39 ML226258 Start Lever A, w/lever C 4TR-122, 1 6-108 MI231423 Middle Wheel 900-155 1
6-40 SB485741 Start Button C MS-1002 ] 6-109 ZW260122 Washer (Nylon) D6.1x10xit I
; 6-41 ZS425788 Screw, round head 3x4 2 6-110 ML492344 Pinch Roller Lever (Black) 900-161 5]
: 6-42 ES250007 Micro SW. M-8-3 U/L 5-1-6 1 6-111 MS243404 Pinch Roller Shaft C 4TR-102 1
: 6-43 M2Z585887 Actuator B, w/pin lever LS-102 1 6-112x ZW259975 Washer (SUP) D5.1x10.3x0.8t 1
6-44 ZS417148 Screw, binding head 3x15 2 6-113 MS582906 Cam Roller Shaft A-1 7-3-6 1
6-45 ZS323728 Screw, binding head 3x5 5 6-114 MR269763 Cam Roller D=13 900-154 1
6-46x ZW462835 Washer (PBP) D4.3x11x0.2t 1 6-115 ZG272981 Pinch Roller Spring, M-9 M9-104 1
6-47x ZW462846 Washer (PBP) D4.3x11x0.3t 1 6-116 ML369718 Pause Lever A, w/screw RCC-103 - 1
6-48x ZW330412 Adjust, Washer (U) 6-117 ZS217877 Pause Lever Set Screw 900-136 1
D4x13x0.13t 1 6-118 MZ217855 Pause Stopper 900-169 1
6-49x ZW330423 Adjust, Washer (U) 6-119 ZG217866 Pause Lever Spring A 900-123 1
a D4x13x0.25t 1 6-120 MZ217686 Pause Lever Cushion LC-102 1
: 6-50x ZW330445 Adjust, Washer (U) 6-121 MZ293567 Head Lifter Cam A #1630 1630-104 1
D4x13x0.8t I 6-122 MZ293578 Head Lifter Cam B #1630 1630-105 1
6-5tx EJ205986 Cramp Terminal 2-SD 32-1-8 5 6-123 MC216448 Counter MP-391-16 (w/base) 9-1-2 1
6-52x ZS413201 Screw, pan head 4x8 13 6-124x MB406168 Counter Belt D123x1.8 3-3-14 1
6-53x MZ452496 Cycle Angle (CEE) LS-1007 1 6-125 BL204658 AS Lever Comp. #2 1
6-54 ML475920 New Spring Hook 900-185 1 6-126x ZG294153 AS Lever Spring, 1700 AT-107 1
6-55 ML309093 Lever B, w/lever D 900-103 1 6-127x MP204794 Pinch Roller #3 D=40 3A-348 1
6-56 MR217203 Cam Roller A (Nylon) D=12 900-153 1 6-128x EJ450573 Mate-N-Lock Cap Housing 9P
6-57 MR217214 Cam Roller B (Steel) D=10.5 4TR-240 1 1-480277-0 52-1-7 1
6-58 ZW290283 ‘U’ Ring 2.85M 6-1-1 13 6-129x E}373623 Pin Contact 61116-1 52-1-1 8
6-59 ZG469427 Spring B-1 LS-2004 1 6-130x MZ229138 Wire Bundle Holder N-108 2-351 2
6-60 MZ253653 Metal Mt. Parts, w/metal 900-174 1 6-131 MZ301048 Lifter Spoke, 920 LM-12 1
6-61 ML270685 G Lever, w/H lever SX 900-109 i 6-132 ZG217394 Belt Change Spring B MH- 125 1
6-62 MS205560 Idler Shaft B 100150 1 6-133 MZ316956 Cam A-3 MR-242 1
6-63 ZS200384 Screw, countersunk head 3x6 3 6-134 MV270066 Steel Ball D8 1
6-64x ZW260076 Washer (Nylon) D6.1x10x0.5t 1 6-135 MZ217271 Cam B (without Tap) 900-206 i
6-65 MI204423 Idler Wheel #2 1 6-136x MZ605700 Frame Support A LS- 6228 1
: 6-137x MZ605711 Frame Support B LS-628 90)
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail. ———————_
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A OCODGOAHAVNAHRWOAWDAUBRBDOTHENYNWWYORDTNYENE EEE HE OOHNY | DOH
Lt
Description
PRE-AMP. P.C. BOARD (LS-5209) BLOCK

Parts
a
No.
ER2113757
ae Be Parts No. Description Q’ty

QPY
<
oO.

ER362485
7-R1,2
Resistor, Stopper Type

ER336442
7-1x BA482117 PRE-AMP. P.C. Board Comp.
1

ER357412
(LS-5209) Carbon RD1/4 100k(J)

NNNNNNNNNNBPNNNNNN A
7-R3

ER211757
7-TR1 ET234843 Transistor 2SC458LG(B) (C) 2 Carbon RD1/4 330k(J)

7-R4
7-TR2 ET234843 Transistor 2SC458LG(B) (C) 2

ER212264
Carbon RD1/4 10k(J)

7-R5
Carbon RD1/4 220(3)

ER212883
7-D1 ED219464 Germanium Diode 1N34A 2

7-R6

ER336442
2 Carbon RD1/4 100k(J)

7-R7
7-SW1 ES307877 Slide SW. CL162B35
Carbon RD1/4 22k(J)

ER349907
7-R8
7-2 ZG227441 ~=Spring C 2

Capacitor,
Carbon RD1/4 4.7k(J)

7-R9,

ER357570
Vertical
7-3x EZ392095 Fasten Tab 3

EC220678

7-R11

ER306887
Carbon RD1/4 10k(J)

10
Type
EC320051

7-R12
RD1/4 33k(J)

ER357456
Carbon

25WV
Elect.

47uF
EC336194
7-C1

0.00i1uF(K)
270PF(J)

7-R13
Carbon RD1/4 150k(J)

ER399644
16WV
VFMElect.

NYMNNNNNNNNNNN YN
10uF
EC250604

—_ =
7-C2

7-R16 7T-R14
Carbon RD1/4 15k(J)

ER380913
50OWV
EC220590
7-C3

7-Ri5
Carbon RD1/4 2.2k(J)

ER212477
50WV
Mylar
EC350616
7-C4
Carbon RD1/4 82(J)

ER357412
VFMElect.

10WV 10WV
S50PF(J)
EC220590_—-
7-C67T-C5S

33uF
Carbon RD1/4 33(J)

7-R17

ER213030
SOWV
EC450527_—s

7-R18

ER213120
Carbon RD1/4 3.3k(3)

Elect.
0.472F(M)
33uF
7-C97-C87T-C7

EC487157

0.0082uF(J)

7-R19
Carbon RD1/4 220(J)

680PF(3)4.7uF

50WV 25WV
NP Elect.
EC411827

7-R20
Carbon RD1/4 5.6k(J)

50WV SOWV
0.0068uF(K)
EC429851
Carbon RD1/4 56(J)

7-C10

EC342821

FMS50PF(J)
7-C11

0.0068uF(K)
EC270573

VFM

SOWV SOWV
Mylar
7-C12

EC342821

SOOWV
7-C13

=Mylar
7-C14
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail. ————————_____
FIG. 8 PHOTO OF MAIN AMP./OSC./POWER SUPPLY P.C. BOARD. £1S-5207) BLOCK

MAIN AMP./OSC./POWER SUPPLY


P.C. BOARD (LS-5207) BLOCK
Symbol
No.
Parts No. Description Q'ty et Parts No. Description Q = “<
8-1x BA482128 Main Amp./OSC./Power Supply Resistor, Stopper Type
P.C. Board Comp. (LS-5207) 8-R1 ER342933 Carbon RD1/4 27k(J) \ Sa
&TR1 ET539987 Transistor 2SC1312(F) (G) 8-R2 ER212883 Carbon RD1/4 4.7k(J)
8-TR2 ET379462 Transistor 2SC711(D) (E) 8-R3 ER212681 Carbon RD1/4 330(J)
8-TR3, 4 ET391735 Transistor 2SC1013(D) (E) 8-R4 ER391961 Carbon RD1/4 91k(J)
8-TR5 ET380834 Transistor 2SC711(E) 8-R5 ER363644 Carbon RD1/4 560(J)
8-TR6, 7 ET338894 Transistor 2SC968(3) 8-R6 ER350100 Carbon RD1/4 68k(J)
8-D1 ED329128 Silicon Diode 10DC-1(Red) 8-R7 ER211465 Carbon RD1/4 1k(J)
&-D2 ED329130 Silicon Diode 10DC-1(Black) 8-R8 ER392534 Carbon RD1/4 2k(J)
8-T1 BT390565 Driver Trans. N24-6847AT 8-R9 ER212016 Carbon RD1/4 150(J)
8-T2 E0383365 OSC. Coil OT-204 8-R10 ER371946 Carbon RD1/4 2k(J)
8-L1 EO383308 Ferri Inductor FL7H 2.7MH(J) 8R1i ER212016 Carbon RD1/4 150(J)
&-L2 E0393423 Ferri Inductor FL11H 47MH(J) 8-R12, 13ER251583 Wire-wound 1/2W 0.5(K) (L Type)
82 | EZ481792 Heat-sink 8R14 ER214402 Carbon RD1/4 470(J)
8-3 ZS321298 Screw, binding head 3x8 8R1I5 ER336442 Carbon RD1/4 10k(J)
8-4 ZW273756 Nut M3 8R16 ER350065 Carbon RD1/4 430(3)
8-5 ZS325495 Tapping Screw #2 3x6 (BR) ReE
HB
wh
NE
NNR
HNN
NN
= 8R17 ER450011 Carbon RD1/4 120k(J)
8-R18 ER336442 Carbon RD1/4 10k(J)
Capacitor, Veritcal Type 8-R19 ER306887 Carbon RD1/4 15k(J)
8-C1 EC329850 VEM 220PF(J) SOWV 8-R20 ER211465 Carbon RD1/4 tk(J)
8-C2 EC320051 Elect. 10uF 16WV 8R2i ER212681 Carbon RD1/4 330(J)
8-C3 EC220465 Elect. 22uF 6.3WV 8R22. ER251730 Wire-wound 3W 150(K) (L Type)
8-C4 EC290520 VFM 100PF(J) SOWV 8-R23, 24ER399723 Carbon RD1/4 4.7(J)
8-CS§ EC350616 VFM 50PF(J) 50WV 8-R25 ER212883 Carbon RD1/4 4.7k(3)
8-C6 EC324516 Elect. 220uF 6.3WV 8R26 ER304402 Carbon RD1/4 470(J) ND
NNNNNN
NEE
HM
8-C7 EC220151 Elect. 100uF 25WV
8-C8 EC220768 Elect. 470uF 10WV
8-C9 EC3200513 Elect. 10uF 16WV
8-C10 EC450055 Elect. 1pF 25WV
8-Cil EC329850 VFM 220PF(J) 50WV
8-C12 EC411827 Mylar 0.0082pF(3) SOWV
8-C13 EC451462 VFM 150PF(J) SOWV
8-C14 EC389485 Mylar 0.018uF(J) 50WV
8-C15 EC379157 Mylar 0.033nF(J) SOWV
8-C16 EC424708 Mylar 0.001 8p F(J) 5OWV
8-C17 EC220151 Elect. 100uF 25WV
8-C18 EC450270 Elect. 1000uF 25WV
8-C19 EC220151 Elect. 100uF 25WV
8-C20, 21 EC250841 Mylar 0.01uF(J) SOWV
8-C22 EC520481 Styrol 5500PF(J) 500WV ma
DN
DY
NRE
NNNPWNNNNNNNN
NNN

When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail —————————
FIG 9 PHOTO OF AMP . ASSEMBLY BLOCK
i

AMP. ASSEMBLY BLOCK See


na Paets No. Description poten Q’ty ti Parts No. Description Tees Q’ty

REC, LEVER BLOCK 9-58x BT481702 Power Trans. LST-5 (CEE) 38-4-173 i
9-1x BL482130 Rec. Lever Block Comp. LS-2, 3 1 9-59 ZS200700 Tapping Screw #2 4x8 (Round) 4
9-2 ML294625 Rec. Lever 1, 1720 LCS-5 ] 9-60 EJ300508 Mate-N-Lock Plug Housing 9P
9-3 ML294636 Rec. Lever 2, 1720 LCS-7 1. 1-480274-0 52-1-7 1
9-4x ZS349288 Screw, binding head 3x5, 9-61x EJ373634 Socket Contact 61115-1 §2-1-1 8
w/washer 4 9-62 EJ233370 Socket (Volt. Selector)
9-5 EZ294434 1720 Shaft Hodler LCS-6 1 S-18010 4023 1 |
9-6 MS294513 Tension Arm Shaft, 1720 Les-4 1 9-63x EF563681 Fuse tA 250V 39-150 1
| 9-7x ZW273914 Spring WasherM4 1 9-64x ZS201183 ISO Screw, Truss Head 3x8
9-8x . ZW273960 Nut M4 1 (Black) 2
ZW290283 ‘U’ Ring 2.85M 6-1-1 1 9-65x EJ254970 Lug Plate KP1L1 33-3-3 1
9-9x
9-10x MZ481825 SW. Interlocking Plate, 1720, 9-66x EF460653 Fuse ST-1 1A (UL) 391-25 1
(w/plate spring) LS-5204 1 9-67 EW540112 AC Cord (CUL) 2.5M 26-3-19 1
9-68x EW354240 Power Cord (CEE) ER-0150 1
JACK PLATE BLOCK 9-69x EW315448 Australia Cord (3 core) 26-3-11 1
9-11x BJ482141 Jack Plate Block Comp. LS-2, 3 1 9-70x EW486797 Power Supply Cord (WG) 26-3- 26 1
9-12 EJ481590 Jack Plate 1721, w/jack LS-5205 1 9-71x EJ585876 Fuse Terminal Plate 8 (CSA) 101061 1
9-13x ER440921 Carbon/R. RD1/4 27k(J) 9-72 EZ382263 Strain Relief SR-4K-4 2-71-12 1
ea (Insu. Type) 35-95 2 9-73x EZ246936 Strain Relief SR-6W-1
9-14x ER443790 Carbon/R. RD1/4 470k(3) r (WG, 3 core) 2-7-8 I
35-45 2 9-74x ZW392692 Washer, Strain Relief LS-5017 11
ties .” Gnsu. Type)
Slide SW. SL-222B4C 25-3-40 1 9-75x ZW459134 Washer, Strian Relief (CEE) LS-5027 J
9-15 ¥ES422436
9-16 ES481601 Slide SW. SL-243B4F 25-3-65 1 9-76x EJ585865 Fuse Holder (CEE) 101060 1
Terminal C (Nut) LS-5218 1 9-77x EF354295 Fuse (T Type) 1.6AT (CEE) 1
9-17x EJ486404
55-5033 1 9-78x EF480903 Fuse 1A 125V (CSA) 391-44 1
9-18 EJ457637 Terminal B (Screw)
9-19x EZ328331 Fasten Receptacle 170043-2 52-1-8 4 9-79 BA482117 Pre-Amp. P.C. Board (LS-5209)
Comp. LS-5209 1
AMP. ASSEMBLY BLOCK 9-80 ZG250367 Micro Spring E MH-22 1
9-20 EZ481307 Amp. Chassis 1721 LS-5201 1 9-81 BA482128 Main Amp./Osc./Power Supply
9-21 ES317531 Slide SW. ESD-271DU 25-3-24 1 P.C. Board (LS-5207) Comp. LS-5207 1
9-22x ZW273881 Earth Lug M4 d 9-82x EJ314403 Nylon Clip HP-2N (CEE) 2-7-36 1
ZS200700 Tapping Screw #2 4x8 (Round) 1 9-83 EZ512122 SW. Retaining Plate LS-5228 1 os
9-23x
9-84 ES422436 Slide SW. SL-222B4C 25-3-40 baa
9-24 EC353766 Elect./C. 2200uF 25WV (Lug T
(Lug Type) 241047 1 9-85 ML294647 Rec. Lever 3, 1720 LCS-8 1
9-25 ZS325495 Tapping Screw #2 3x6 (BR) 11 9-86 EZ293231 Speaker Mt. Chassis A, 1630
9-26x EZ225077 Jack Plate Prop (Main Amp.) LD-512 1 (Left) 1630-601 1
9-27x ZS322626 Screw, binding head 3x8, 9-87 EZ293242 Speaker Mt. Chassis B, 1630
w/washer 1 (Right) 1630-601 1
MH481678 32 Prop (Pre-Amp.) LCS-33. 3 9-88 SS487168 Speaker 75E-8A 29-2-6 2
9-28x
9-29 ZS413728 Screw, binding head 3x6, 9-89 ZS200496 Screw, countersunk head 4x12
1 (Black) 8
w/washer
3A-745 2 9-90 ZW413188 Nut #1 M4 8
9-30 MZ259233 Wire Band C
9-31 EA390543 Pilot Lamp P.C. Board LS LS-5016 1 9-91 ZW290248 Speed Nut (U Type) #1 M4
EL390576 Pilot Lamp (L/T) (Small) 6-31 4
9-32
RM6-24V-50MA __28-2-6 1 9-92 ZW290250 Speed Nut (U Type) #1 M4
LS-5226 1 (Large) 6-3-2 8
9-33, EA498958 SRTR SW. P.C. Board
Ferri Inductor FL9H 200uH(K) 23-1-4 1 9-93 SM481342 Jack Name Plate A LS-6206,7 1
9-34 ~EO392578
Slide SW. SL-243B4D 25-3-33 J 9-94x SM481353 Jack Name Plate B(UL, CSA) LS-6206,8 1
9-35 ES368436
Connector Plug 7P S-17302 42-1-40 1 9-95x SM481364 Jack Name Plate C (CEE) LS-6206,9 1
9-36 EJ390453
Slide SW. SL-222B4C 25-3-40 1 9-96x ZS201150 Screw, truss head 3x6 (Black) 2
9-37 ES422436
Screw, binding head 2.6x4 4 9-97 SE449100 Mask B BS-6012 2
9-38. .2S442585
9-39 EV390554 Double/Vol. D24N 50 kB+SOKA 36-3-24 2 9-98x SE225977 SW. Mask (Nyon) 1630-605 1
9-40x ER214290 Carbon/R. RD1/4 4.7k(J)
(insu. Type) 35-95 2
9-41 EJ433844 Mic. Jack 2PMJ4 31-2-35 2
9-42x ER364948 Carbon/R. RD1/4 3.3k(J)
: (insu. Type) 35-95 2
9-43x EZ225180 Nylon Collar, Jack LD-520 2
9-44 ZW455275 Washer (Fiber) D9.1x18x0.5t 3
9-45 ~.ZW391680 EJackNut. 7-1-20 3
9-46 EJ442078 Mic. Jack 3PM54 31-2-36 }
9-47 ES246025 Push SW. SDF1PBP1
(UEH-12BP) 511}
9-48x ES469541 Push SW. TV-3 JB52 (UL) 25-5-60 1
9-49x ES499972 Push SW. JS-09 (CEE, WG) 55-67 1
9-50 SK569790 Push Button LS-5230 1
9-51 ER376413 Spark Quencher U/L
0.0334+1202 SOOWV = 41-1-37 1
9-52 ZS442585 Screw, binding head 2.6x4 4
9-53 EM476482 VU Meter D-1807R (18B Type) 46-1-54 2
9-54x SE446545 MaskA _ DF-6041 2
9-55 BT390598 Power Trans. LST-1 38-4-10] 1
9-56% BT390587 Power Trans. LST-2(UL) 38-4-102, 1
9-57x BT481713 Power Trans. LST-4 (CSA) 38-4-172 1

When ordering parts. please describe Parts Number, Serial Number, and Model Number in detial. ———————_____
4
1

FIG. 10 PHOTO OF FINAL ASSEMBLY BLOCK

1
i
t

2 ge SAS
en
FINAL ASSEMBLY BLOCK
on Schematic al
Ref.
No. Parts No. Description No. Q’ty

FRONT PANEL BLOCK ‘


10-1x SP570745 Front Panel Block Comp. LS-3 1
10-2x SP570756 Front Panel Block Comp. ‘
(UL,CSA,CEE) LS-3 1
10-3 SP569766 Front Panel A 1722 LS-6219 1
10-4x SP569777 Front Panel B 1722
(UL,CSA,CEE) LS-6219 1
10-5 SC481487 Head Cover Base, 1721 LS-6203 1
10-6 ZS252426 Screw, truss head 3x6
(Without Groove) 2
10-7x ZW273756 Nut M3 2
10-8 SE569788 Meter Escutcheon LS-6220 2
10-9x ZS524812 Screw, countersunk head 2x4 8

CASE BLOCK
10-10 BC575695 Wood Case Block Comp. 1 i
20-11x BC575706 Leather Case Block Comp. 1
10-12 SA377190 Rubber Foot, LM LM-44 «6
10-13x ZW406247 Washer (SUP) D3.2x10x0.5t 6
10-14x ZS202511 Screw, round head 3x18 6 é
10-15x ZW345947 Tapping Screw #1 2.6x8
countersounk 8
10-16x ZS316642 Wood Screw, countersunk head
: 2.4x6.3 8
10-17x SE382217 Fan Grill RD-A42 1
10-18 ZS324448 Tapping Screw #1 3x10 (Truss)
(Black) 11
10-19 SE382228 Speaker Grill RD-A48 2
10-20x SZ237993 Hooking Holder B 100737 2
10-21x SZ208271 Holder Metal Supporting Plate CD-64 2
10-22x ZW304536 Screw, oval countersunk head
3x14 2 F i
10-23x ZS203218 Wood Screw, round head eee
2.7x10 6
10-24x SZ304964 Hooking #1 700 AT-37 2
10-25x ZS202375 Screw, round head 3x10 2
10-26x VM293883 Hinge #1700 AT-38 2
10-27x SZ293477 Vinyl Handle #1630 1
10-28x S$Z324303 Handle Metal Fitting #1630 2
10-29x SZ293455 Handle Metal Fitting Cover
#1630 2
10-30x 2S345971 Screw, countersunk head 4x35 2

FINAL ASSEMBLY BLOCK


10-31x SA377190 Rubber Foot, LM LM-404 2
i 10-32x ZS434283 Tapping Screw #1 4x30(Truss) 2
i 10-33x ZW419646 Washer (SPC) D4.5x9.8x0.5t 2
4 10-34 SE569744 Knob Escutchion TD-6017 4
10-35 ZS570576 Screw, oval countersunk head
3x8
10-36 ZW408418 Panel Washer KD-6029
10-37x ZW273868 Cap Nut M3
10-38 SC481408 Head Cover, LS-II. LS-6204
10-39 SM576551 Head Cover Name Plate 1722W _LS-6223
10-40x SM576562 Head Cover Name Plate 1722L LS-6223
10-41x SC465761 Head Cover Shield Plate LS-6018
10-42 ZS201150 Screw, truss head 3x6 (Black)
10-43 MP204794 Pinch Roller #3 D=40 3A-348
10-44 SK425158 Pinch Roller Cap MS~-6020
10-45x ZW260201 Washer (Nylon) D6.2x13x1t
10-46x ZW404010 Washer (BSP) D6.2x13x0.25t
10-47 SK476684 Mech. Knob LE-6018
10-48x ZS253405 Mech. Knob Screw 1-1-46
10-49 SK576606 Knob A (Black) LE-6012
10-50 SK576573 Knob B (Black) LE-6015
10-51x ZW564118 Washer (Nylon) D11x18x0.8t :
10-52x EF563670 Fuse 0.5A 250V 391-50
10-53x S$Z327442 Cord Angle B SX-405
10-54x SZ476728 Cord Cover, M-9 (Roberts) M9-435
10-55x ZS481454 ISO Screw, truss head 3x12
10-56 SK314100 Pause Knob B MR-612 mB
SH
eee
Se
N
Hw
NNNENNNNNNN
10-57x ZS433001 Set Screw, hexagon socket 3x5
(Cup/p.) 1
10-58x EF563681 Fuse 1A 250V 391-50 1

When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail, ———-————
pebe J
INDEX
Ref. No. & Ref. No. & Ref. No. & Ref. Ref. No. &
Parts No. Symbol No. Parts No. Symbol No. Parts No. Symbol No. Parts No. ‘Symbot No. arts No. Symbol No.

BA482117 7-1x EJ373623 6-129x ES481656 6-11x MR217203 5-24 MZ317068 5-27 '
BA482117 9-79 EJ373634 9-61x ES499972 9-49x MR217203 6-56 MZ327251 6-71
BA482128 8-1x EJ390453 9-36 ES601650 = 5-3 MR217203 6-99 MZ327341 5-6
BA482128 9-81 EJ392567 = 1-21 ES601672 5-12 MR217214 6-57 MZ327352 5-8
BC575695 10-10 EJ433844 909-41 ET234843 7-TR1 MR251460_ 2-12 MZ392490 5-16
BC575706 10-11x E}442078 9-46 ET234843 7-TR2 MR252044 2-38 MZ413976 4-6
BF482040 4-1 EJ450573 = 6-128x ET338894 8-TR6,7 MR252066 2-20 MZ430334 3-13
BH482051_—‘I-1x EJ457637 99-18 ET379462 8-TR2 MR252077 2-41 MZ446635 4-7
BJ482141 = -9-11x EJ481590 9-12 ET380834 8-TR5 MR256094 2-36 MZ448222 3-4
BL204658 6-125 EJ486404 = 9-17x ET391735 8-TR3,4 MR257984 3-23 MZ452496 6-53x

BL482130 9-1x EJ585865 9-76x ET539987 8-TR1 MR269763 6-114 MZ453598 3-7x
BL564107 3-27x EJ585876 9-71x EV390554 9-39 MR336172 3-22 MZ458594 3-6x
BM364320 3-1x EL390576 9-32 EW315448 9-69x MS205560 6-62 MZ458605 3-8x
BM486663_ 3-2x EM476482 -9-53 EW354240 9-68x MS243404 6-111 MZ459178 3-5
BM489137 3-3x E0383308 8Lt EW486797 9-70x MS245463 6-26 MZ481612 6-8x
BR570802 2-1x EO383365 8-T2 EW540112 9-67 MS255600 2-6 MZ481825 9-10x
BR570813 2-2x E0392578 9-34 EZ225077 9-26x MS257051 6-19 MZ518973 6-29x
BS601604 = 5-1x E0393423 8-L2 EZ225180 9-43x MS260515 6-30 MZ585887 6-43
BT390565 = 8-T1 E0606071 6-32 EZ246936 9-73x MS294513 9-6 MZ885900 4-15
BT390587 9-56x E0609862 6-33x EZ293231 9-86 MS481858 4-3 MZ585911 4-14

BT390598 9-55 - ER211465 8R7 EZ293242 9-87 MS582906 6-113 MZ586438 4-9x
BT481702 ‘'9-58x ER211465 8-R20 EZ294434 9-5 MT222366 2-13 MZ605700 6-136x
BT481713 9-57x ER211757 7-Ri, 2 EZ328331 9-19x MT228598 2-48 MZ605711 6-137x
BZ400948_ 6-1x ER211757 7-R6 EZ382263 9-72 MT245215 6-81 SA377190 10-12
BZ482062 6-7x ER212016 8-R9 EZ392095 7-3x MT252101 =2-19x SA377190 10-31x
EA390543 9-31 ER212016 8-Ri1 EZ481307 9-20 MT252112 2-4x SB258478 6-77
EA4989S8 9-33 ER212264 7-R7 EZ481792 = 8-2 MT255420 2-8 SB485741 6-40
EC220151 8-C7 ER212477 7-R17 EZ512122 9-83 MT255565_ 2-10 SC465761 =—10-41x
EC220151 =8-C17 ER212681 8-R3 HE384693 1-12 MT255712 2-3 SC481408 10-38
EC220151 8-C19 ER212681 8-R21 HP375131 91-7 MT255870 2-18 SC481487 10-5

EC220465 8-C3 ER212883 7-R8 HZ247511 1-26 MT255870 2-27 SE225977 9-98x
EC220590 = 7-C5 ER212883 8-R2 HZ256432 1-16 MT255881 2-40x SE382217 10-17x
EC220590 7-C7 ER212883 8-R25 HZ274195 = 1-3 MT255971 2-21 SE382228 10-19
EC220678 7-Cl ER213030 7-R19 HZ392501 1-2 MT255982 2-42x SE446545 9-54x a oe
EC220768 8-C8 ER213120 7-R20 HZ392545_ 1-6 MT255993 2-33 SE449100 9-97 ae
EC250604 7-C4 ER214290 9-40x HZ393974 = 1-11x MT292386 2-31 SE569744 10-34
EC250841 8-C20,21 |ER214402 8-Ri4 HZ410984 = 1-13 MT297663 2-7 SE569788 10-8
EC270573 =7-C13 ER251583 8-R12,13 |HZ468281 6-15x MT376110 2-5 SK314100 10-56
EC290520 =8-C4 ER251730 8-R22 MB256590 4-11 MT376457 6-85x SK425158 10-44
EC320051 =7-C2 ER304402 8-R26 MB406168 6-124x MT438592 2-28 SK476684 10-47

EC320051 8-C2 ER306887 7-R13 MC216448 6-123 MT438603 2-29 SK569790 9-50
EC320051 8-C9 ER306887 8R19 MH204311 6-2 MT438614 2-43 SK576573 10-50
EC324516 8C6 ER336442 =7-R4 MH244710 4-8 MT438625 2-30x SK576606 10-49
EC329850 8-Cl ER336442 7-R9, 10 MH245485 6-27x MT438636 2-47 SM481342 9-93
EC329850 8-Ci1 ER336442 8-Ri5 MH248343 6-24x MT438647 2-22 SM481353 9-94x
EC330401 3-35 ER336442 8-R18 MH254160 3-14 MT440313 2-46 SM481364 9-95x
EC336194 7-C3 ER339805 3-38 MH254182 3-15 MV248117 6-5 SM576551 10-39
EC342821 7-C12 ER342933 8-R} MH254316 3-11 MV269965 4-13 SM576562 10-40x
EC342821 =7-C14 ER349907 7-R11 MH260425 5-28 MV270066 5-30 SP569766 10-3
EC350616 7-C6 ER350065 8R16 MH270000 2-35 MV270066 6-134 SP569777 —10-4x

EC350616 8C5 ER350100 8-R6 MH273295 6-17 MZ210071 6-95 SP570745 10-1x
EC353766 9-24 ER357412 7-R5 MH481678 9-28x MZ217113 6-74 SP570756 10-2x
EC379157 8-C15 ER357412 + =7-R1i8 MI204423 6-65 MZ217271 5-31 SS487168 9-88
EC389485 8-C14 ER357456 7-R14 MI204423 = 6-102 MZ217271 6-135 S$Z208271 10-21x
EC411827 7-C10 ER357570 = =7-R12 MI231423 6-108 MZ217686 6-120 $Z237993 10-20x
EC411827 8-C12 ER362485 7-R3 MI296245 4-2 MZ217708 6-69 SZ293455 10-29x
EC424708 8-Cl6 ER363644 8-R5 ML2i7462 3-28 MZ217855 6-118 $Z293477 = 10-27x
EC429851. 7-Cll ER364948 9-42x ML217934 6-80 MZ225720 5-23 S$Z304964 10-24x
EC450055 = 8-C10 ER371946 8-R10 ML226258 6-39 MZ229138 6-130x $Z324303 10-28x
EC450270 8-C18 ER376413 9-51 ML251932 6-84 MZ237418 6-34 $Z327442 10-53x
oa t
“a EC450527 = 7-C8 ER380913 7-R16 ML257040 6-98 MZ248354 3-29 SZ465377 6-3
EC451462 8-C13 ER391961 8-R4 ML257128 5-16 MZ253113 4-10 SZ465388 6-6
EC486630 3-36x ER392534 8-R8 ML257163 6-103 MZ253653 6-60 $Z476728 10-54x
EC487157 =7-C9 ER399644 7-R15 ML262337 6-91 MZ254068 3-25 VM293883 10-26x
EC520481 =8-C22 ER399723 8-R23,24 |ML270685 6-61 MZ254373 3-12 ZG205571 6-67
ED219464 7-Di ER440921 9-13x ML294625 9-2 MZ256814 5-35x ZG217337 6-92
ED329128 8-D1 ER443790 9-14x ML294636 9-3 MZ256882 3-41 ZG217394 3-32x
ED329130 8-D2 ER450011 8-Ri7 ML294647 9-85 MZ257073 6-21 ZG217394 6-132
EF354295 9-77x ES246025 9-47 ML295727 6-100 MZ259233 9-30 ZG217866 6-119
EF460653 = 9-6 6x ES250007 6-42 ML300161 6-88 MZ260662 6-93 ZG224796 6-104

EF480903 =9-78x ES307877. _7-SW1 ML308564 6-28x MZ292364 3-26x ZG227441 7-2
EF563670 10-52x ES317531 9-21 ML309093 6-55 MZ293567 6-121 ZG227452 6-86
EFS63681 9-63x ES368436 9-35 ML369718 6-116 MZ293578 6-122 ZG227485 5-33
EF563681 10-58x ES422436 969-15 ML475920 6-54 MZ296144 3-19x ZG227542 2-39x F
EJ205986 6-51x ES422436 9-37 ML481768 6-13x MZ301048 6-131 ZG227553 2-14 ce
EJ233370 9-62 ES422436 9-84 ML492344 6-110 MZ301048 1-20 ZG227586 5-7
EJ254970 9-65x ES469541 = 9-48x ML548280 6-87 MZ316901 5-2 ZG232121 5-32
E}300508 9-60 ES479485 6-96 MP204794 6-127x MZ316945 5-15x ZG250367 9-80
EJ314403 = 9-8 2x ES479496 6-9 MP204794 10-43 MZ316956 5-29 [eee 2-9
EJ373623 6-73x ES481601 9-16 MR217203 5-17 MZ316956 6-133 ZG256937 5-34
LL —L :
An
INDEX

. No. Ref. No. & Ref. No. & Refi arse — Ref. No. &
Part No. Syke! ne Part No. Symbol No. Fart:No; Symbol No. PartNo. * “Symbol No. Farina: Symbol No.

ZG257095 6-23 ZW217102 6-75 ZW571072 5-20x


ZG270358 6-101 ZW222388 3-20x ZW601290 = 1-5x
ZG272981 6-115 ZW231693 2-23
ZG290384 6-83 ZW231805 6-4
ZG294153 6-126x ZW259885 3-21x
ZG382757 1-10 ZW259918 6-89
ZG389283 1-18 ZW259942 6-82x
ZG414077 2-45 ZW259975 6-112x
ZG465478 3-30 ZW260021 2-15
ZG469427 6-59 ZW26002i 2-24
ZS200384 6-63 ZW260054 = 2-16x
ZS200496 9-89 ZW260054 = 2-25x
ZS200700 9-23x ZW260054 = 3-33x
ZS200700 9-59 ZW260054 6-70x
ZS201150 ©9-96x ZW260065 2-17x
ZS201150 10-42 ZW260065 2-26x
ZS201183 9-64x ZW260065 2-34
ZS201475 = 1-14 ZW260076 6-64x
ZS201508 = 1-8x ZW260122 5-26x
ZS201767 6-90x ZW260122 6-109
ZS202061 - 1-23 ZW260133 5-5x >
ZS202375 10-25 ZW26020!1 =10-45x
ZS202511 =10-14x ZW260436 6-79x
ZS203218 10-23x ZW270088 2-11
ZS217877 5-19 ZW273745 1-4x
ZS217877 =6-117 ZW273745 6-36x
ZS223233 6-107 ZW273756 3-40
ZS231298 6-14x ZW273756 5-14x
ZS252426 10-6 ZW273756 6-37x
ZS253405 10-48x ZW273756 8-4
ZS272395 3-17 ZW273756 16-7x
ZS316642 10-16x ZW273767 6-94
ZS321298 8-3 ZW273802 5-13x
ZS322626 9-27x ZW273868 10-37x
ZS323728 3-37 ZW273881 = 1-22x =
ZS323728 6-38 ZW273881 5-25
ZS323728 6-45 ZW273881 9-22x
ZS324448 10-18 ZW273892 5-22x
ZS325495 8-5 ZW273914 6-31x
ZS325495 9-25 ZW273914 9-7x
ZS344283 = 1-15x ZW273960 9-8x
28345914 1-9 ZW290248 9-91
ZS345971 10-30x ZW290250 9-92
ZS349288 6-72x ZW290283 1-19
ZS349288 9-4x ZW290283 3-34x
: Z8S373577 4-5 ZW290283 5-18x
: ZS384131 =3-9x ZW290283 6-58
: ZS391588 1-24 ZW290283 9-9x
| ZS413166 6-97 ZW304536 = 10-22x
4 ZS413201 1-25 ZW312693 2-44
ZS413201 5-9 ZW330412 6-48x
28413201 6-52x ZW330423 6-49x
ZS413234 6-68 ZW330445 6-50x
ZS413245 6-76 ZW345442 1-17
ZS413728 3-39x ZW345947 = 10-15x
ZS413728 5-4x ZW376391 6-105
28413728 9-29 ZW391680 9-45
ZS413921 3-24 ZW392681 4-12
ZS414033 —6-18x ZW392692 9-74x
ZS417148 6-44 ZW404010 = 10-46x
4 28417150 3-31 ZW406247 =10-13x
‘ ZS417150 6-22x ZW408418 10-36
5; ZS419736 4-17x ZW413188 6-25
ZS424056 = 3-16 ZW413188 9-90
28425788 6-41 ZW413256 6-78x
ZS425981 6-10x ZW413267 -6-20x
ZS427026 3-18 ZW416698 5-21
28427037 3-10 ZW419646 =10-33x
ZS432718 6-35x ZW432347 6-106x
ZS433001 = 10-57x ZW434193 5-10x
ZS434160 2-49 ZW434215 5-11x"
28434171 =2-37 ZW437804 2-32
j ZS434283 10-32x ZW447208 4-4
: ZS442585 9-38 ZW455275 9-44
; ZS442585 9-52 ZW459134 9-75x
: ZS476987 3-42 ZW462835 6-46x
ZS481454 =:10-55x ZW462846 6-47x
ZS481645 =6-12x ZW463410 4-16
ZS524812 10-9x ZW560801 6-66x
ZS570576 = 10-35 ZW564118 10-51x |

20
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SECTION 3

SCHEMATIC DIAGRAM
1. 1722W SCHEMATIC DIAGRAM
2. 1722L SCHEMATIC DIAGRAM
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DIAGRAM
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NOTE
ACCORDING TO AREA SHOWN AS OTHER SCHEMATIC DIAGRAM
POWER TRANSFORMER BLOCK & MOTOR BLOCK ARE DIFFERENT
ALL RESISTORS IN 11 174W()
UNLESS OTHERWISE. SPECIFIED
ALL CAPACITORS IN pF SOWA)
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