Pioneer CT-3 User manual

() rrloNEErl'
ORDERNO.
ARP-061-O
STEREOCASSETTETAPEDECK
GT-3
MODEL
CT.3
COMESIN SIX VERSIONS
DISTINGUISHED
AS FOLLOWS:
r This
servicemanual
is
applicable
to the KUtype.
When
repairing
theKC
andDtypes,
please
see
page
23.
r when
repairing
theHE,
HB
andHPtypes,
please
seethe
additional
servicemanual
<ARp-060>.
r Ce
manuel
d'instruction
serefdre
aumode der6glage,
enfrangais.
. Estemanual
deservicio
tratadelm6todo
deajusteescrit
enespafiol.
CONTENTS
4
6
I
14
14
18
21
23
o
1.SPEC|F|CAT|ONS
.....
2. FRONTPANEL
FACILITIES
3. DISASSEMBLY
4. PARTS
LOCATION
5. EXPLODED
VIEWS
ANDPARTS
LIST. .
6. PAC KING
7. PARTS
LIST
. , .
8. P.C.
BOARDCONNECTION
DIAGRAM
9. SCHEMATICDIAGRAIV
10. FOR
KCANDD
TYPES
11.MECHANICAL
ADJUSTIVENTS
. . .
REclncesu€cnNtouEs..
....
AJUSTESMECANTCOS
.. .. ....
12.ELECTRICAL
ADJUSTMENTS
. . ,
REGLAGES
ELECTRIOUES
. ...
AJUSTES
ELELECTRIO
I3. BLOCKDIAGRAM
,I4.
CIRCUIT
DESCRIPTIONS
. . .
15.CASSETTE
DECKMECHANICAL
24
27
31
J5
39
40
44
OPERATIONS
(SIMPIFIED
DESCRIPTIONI
PIGINEEFI ELECTFIE'NIC CCtFlttOFlATlClN z1 I Mesu.o 1 chome. Mesu.o k! rokyo 1s3. J6p6n
u,€t. FICfNEEFI ELECTFICINIC€| CC'FIFC'FAIICIN 85 O:fo.d D.rve, Moonacr'e, New Je.sey A7A24, uS A.
F lctNEEFr ELECTFIC|N|C (EUFG|9E N.V. Lu thaae. Hawerr 9. 2O3O An.we.p, Bergtrrm
PI()NEEFI ELECTFIONIC€ AU€IIFIALIA FlY. LYEI. 174 rA4 Bou.da.y Road. B.aesde. V'crora 3135. Ausr.6 6
yG ..jOCT.
t98l
Type Voltage Rem€rks
KU ACl2OV
only U.S.A.model
KC ACl20V only Canada
model
DAC12OV,22OV
and240V {switchablel General
expor'tmodel
AC22OV
and24OV
(switchable) Europemodel
HB AC22OV
and24OV
(switchable) United Kingdom model
HP AC22OV and 24OV (switchable) Australia
model
Prinredin lap,
n

1.SPECIFICATIONS
TapeDeck
Section
Syst€m . , Compact cassette, 2-channel stereo
Motor DC servo motor x 1
Heads "Hard Permalloy" Recording/Play-
back head x 1
Miscellaneous
PowerRequirements
KU
(KC)
type. . . .
Power
Consumption
Dimension......
. AC120V,
60Hz
. 16 watts
. 420
(W)
x 120
(H)
x 245
(D)
mm
16-9/'16
{W)
x 4-3/4
{H}
x 9€/8
Fast
Winding
Time
Wow and F
lutter
Frequency
Response
-20 dB recording:
Normal, LH tap€s
Chromium dioxide rape
Metal tape .
0 dB recording:
"Ferrite"
Erasing
headx 1
. Approximately
110 seconds
(C-60
tapel
. No morethan
0.05%
{WRMS)
. 20to 14,000
Hz
(35
to '12,000 13
dB)
. 20 ro 16,000Hz
(35
ro 15,000H2
13
dB)
. 20to 17,oo0Hz
{35
to 16,OO0Hz
13
dB)
Chromium dioxide tape . . . 35 ro 8,000 Hz 13 dB
lMetal
tape . . . 35 to 13,000 Hz
Signal-to-Noise
Ratio
Dolby NR OFF l\4orethan 58 dB
Dolby NR ON More than 68 dB
(at5 kHz)
Harmonic
Distortion . No more than 1.2%
lO dBl
lnput (Sensilivity/Maximum
allowable
input/lmp€dance)
Mic (L. R) . . . 0.3 mV/57 mV/10 ka. 6 mm
diam.jack
(Reference
MIC impedance;
25OO to 1OkO)
LINE (INPUT) 50 mV/25 V/75 ko, Pin jack
Output {Relerence level/Load impedance)
(D)
in'
Weight
(without
package)
. . . 4.4kg(9 lb 11oz)
Furnished
Parts
Connectioncord with pin plugs
Operatinginstructions
Specifications and the design subject to possible modifications
without notie due to improvements.
NOTES:
1. ReferenceTapes: Normal
& LH: DIN 45513/BLATT6
or
equiv.
CrO, DIN 45513/BLATTT (CrO,l or equiv.
2. Reterence Recording Level: Meter 0dB indicating level (160
nwb/m magnetic level = Phillips cassettereference levet)
3. Reference Signal:
333 Hz
4. Wow & Flutter: . JIS [3 kHz, with accl.rstic
compensarion
(weighted)
rmsvaluel
5. Frequency Response:
. Measured at -2OdB tevet, DOLBY
NR OFF, leveldeviation
is
16 dB without indication.
6. Signal to Noise Ratio: . Measured
at the third harmonic dis-
tortion 3%level,weighted.
7. Sensitivity: Input level {mV} required or referen@ recording
levelwith input IREC) controts
set
to maximum.
8. Maximum Allowable Inputr White decreasingsettings
of input
(FEC) levelcontrols and increasingtevet
at input lacks,
this is
the maximum input level (mvl ar the point where recording
amplifier output waveform becomes clipFled.
L Reference Output Level: Playback output level when meter
indicates
0 dB.
LINE
(OUTPUT)
...
HEADPHONES
. . . .
Subjunctions
Dolby NR system
B type
450mV/50k'l, pin
iack
65
mV/8'). 6 mm
Stand-bymechanismwath
unattended
recording
REC muting Iunction
Mechanical auto stop
3 position tapeselector
(NORlvl/CrO,
/META L)
On€ Touch recording system
RECIunction with LED indicatortamp
Sott Lock mechanism
2 colordigitallevel
meter (6 seg LED Peak
Meter)
MS lMusicSearch)system
MPX filter switch
2

2.
FRONT PANEL
FACILITIES
C POWER
switch
Depress
this switch to turn on or turn off power. When the switch
isdepressed
power issuppliedand POWER indicator lights.When
the switch is released
power isturned off and POWER indicator is
extingu
ished.
€) EJECT
buttonandcassetteholder
The cassettetape ishoused in this holder.
To open the holder: Depressthe EJECT button.
To close
the holder: Push the holderby hand.
@rape couNTERandresetbutton
The figures on the tape counter increaseof decreasein line with
the forward or rewind movement of the tape. lf the counter is
set to "0OO" at the start of recording, it will be easy to find the
recording start position when you want to listen to the program
again at a later date. (Rewind the tape to the "000" position
on the counter.)
@ RECindicator
This lights
when the REC switch isdepressed.
@ Recording/playbacklevel
meter
This indicates the strength of the sound being played back or
the sound about to be recorded.
@ooleY* NR
oNswitch
Depressthis to the ON position when recording
or playing back
atapewith the Dolby noisereductionsystem.
€) DOLBY* NR OFFswitch
Depressthis to the OFF position.
@nnrx FILTER
swatch
Depressthis when recording an FM program with the Dolby
noisereductionsystem.
@ truPUfrecording
levelcontrols
Rotate these controls while observingthe levelmeter when adjust-
ing the strength of the sound that is to be recorded. The strength
is increasedwhen the controls are rotated clockwise from the "0"
minimum position.
Front control: For left channel
adjustments
Backcontrol: For right channeladjustments
The controls normally rotate together. To rotate only one control,
hold the other so
that it will not move.
@Function
switches
REC switch:
Depressto start the recording operations.
REWINDswitch
( << l:
Depress
to rewind the tape.
PLAYswitch(>):
Depress
to start tape play.
When using the Music Search (MS) function, operate the PLAY
switch (> ) and REWIND switch ( << ) or the FAST FORW-
ARD switch ( >> l in combination.
FAST FORWARD switch ( >> ):
Depressto fast forward the tape.
PAUSEswitch:
Depress to temporarily suspend recording or to adlust the re-
cordinglevel.
Releasethe PAUSE switch to resumerecording.
NOTE: The tape will not stop even if this switch is depressed
when you are pertorming a rewind or fast forward
operation.
STOPswitch(r ):
Depress
to stop the playback, recording, fast forward and rewind
operations.
RECMUTE
switch
Depress to create unrecorded blanks between tape programs.
When the switch is pushed
during recording,
no soundisrecorded
for as long as the switch is in the depressedposition (thereby
creating
anunrecorded blank).
TAPESELECTOR
switches
Usethese
switchesin line
with the tapes
beingused.
For normaltapes:
. Setthe left-side
switchto the NORM r (out) position.
. The right-side
switchposition isnot used.
For chrome tapes:
. Depress the left-side switch to the HIGH - (inl position.
. Setthe right-side
switchto the CrO" -r (out) position.
For metal tapes:
. Depress
the left-side
switchto the HIGH ^ (in)position.
.Depress the right-side
switch to the METAL r (in) position.
PHONES
jack
Insert
the plug of the stereoheadphones
into this
jack.
MIC
jacks
Insert the microphone pluss (L and R) into
recording
with microphones. thesejacks when
3
@
@
@
@
Theword "Dolby" and QQ aretrademarks
of Dolby
Laboratories
Licensi
ngCorporation.

3. DISASSEMBLY
Door
Assembly
Removal
Dooraslembly
Counter
Removal
Knob
(INPUT
VOLUME)
NOTE:
Do not apply unnecessary
force to hoohs
sincethismay
result
in damage.
Indicator
Panel
Front
panel
Switchassembly
Pushknob
(DOLBY
NR
ON,
DOLBYNR
OFF,
MPXFILTER)
,$\
Fig.
3-1 DisassemblY
1

.r
a?
{?
BonnetRemoval
Remove the four screws O on each side of the
bonnet.
IndicatorPanel
Removal
L. Lift the hooks @ retaining the indicator panel
using screwdriver.
2. PulI the indicator panel toward you and re-
moveit.
Door Assembly
Removal
1. Depress
the EJECT button and open the cas-
setteholder.
2. Pull up the door assembly
andremoveit.
CounterRemoval
1. Gently raise the hook @ of the front panel
with the small screwdriver.
2. Pull the counter toward you and remove it.
Screwdriver
Front panel
LED cover
retaining
hooks
SwitchAssembly
Removal
Removethe two screws
@.
Mechanism
AssemblyRemoval
1. Remove
the counterbelt andthe RECioint.
2. Removethe sixscrews
@.
MeterAssembly
Removal
Remove the hooks (E of the front panel and re-
move the meter assembly.
Indicator
Assembly
Removal
Remove the hooks O of the front panel and re-
movethe indicator assembly.
assembly
REC
ioint
Fig.
3-2 Disassembly
2
5

4. PARTS LOCATION
Front PanelView
NO?ES:
. Portswithout port number connot besupplied.
o The ,i. marh found on some component ports indicdtes the importance of the
safpty factor of the part. 1'herefore. when replacing, be sure to use
parts of identical
designation.
. For your PartsStoch Control, the fast mouing items ore indicated with the marhs
r* GENERALLY MOVES FAS'T'ERTHAN *.
This classificolion sholl be adjusted by eoch distributor beccuse it depends on model
numbe
r, te tn
perat
ure,humidity, etc.
Pushknob
K
1DOLBY
NRON,DOLBY
NR
OFF,
I\4PX
FILTER}
RAC-182 Knob
(INPUT
Rl
RAA.358
w;d
t* Door assembly
RXX.353
Knob
(POWER)
RAC'195
(REC
MUTE)
RAC-183
Front View with PanelRemoved
Cassette
plate
RAH,397
Indicator
panel
RNL.346
Knob (EJECT)
RAC,180
RAC217
FunctaonknobG
RAC-r84
Knob (INPUT
L)
RAA.357
Push
knob H
(TAPESELECT)
RAC,181
o
Counter
RAW,170
Volume
(INPUT)
RCV-095
RAC-185

Top
Viewwith Bonnet
Removed
A**
,A*
Mechanismassembly
RYM.118
Switchassembly
RearPanel
View
Terminal
{LINE}
RKB{18
Power switch (5305)
RSA"O55
Power
transformer
(1
20V)
RTT-236
RWX.574
Volumeassembly
mu
RNT-O2O
Strainrelaef
AEC-376

5. EXPLODEDVIEWS AND PARTS LIST
NO?ES:
o Parls
without part number
cannot
be
supplied.
o The [. marh found on some component parts indicates the importance of the
safety factor of the part. Therefore. when replacing, besure to use
parts of identical
designation.
t For your PartsStoch Control. the fast mouing items are indicated utith the marhs
** and *.
** GENERALI,Y MOVES FASTER THAN *.
Thisclassification
shall
beadjustedby eachdistributor because
it dependson model
number, temperature,humidity, etc.
Parts
List
Mark No. Part No. Description Mark Part No. Description
1.
2.
3.
4.
5.
RN4.560
RYM-l
18
RAH.397
RAC-184
RAC-185
RNL.348
RWX.571
RNT.O2O
RBH€94
RAC-I80
RAW.170
RE8.459
RXX-353
RNL.346
RNL-350
RAA-357
RAA.358
RAC-195
RNL.349
RAC-183
RAC-181
RWX-574
RTT-236
REC-376
Bonnet
Mechanismassembly
Cassette plate
Function knob G
Function knob H
lndicator assembly
LED cover
Meter
assembly
Volume
assembly
Frontpanel
Eject
spring
Eject
plate
Knob
(EJECTI
Counter
Counterbelt
Door
Doorlens
Doorassembly
Indicator panel
Indicator lens
Knob (INPUT L)
Knob (INPUT R)
Knob
(POWER)
Power
joint
Pushknob
L (REC
MUTEI
Pushknob
H (TAPE
SELECT)
Motherassembly
Power
transformer
(1
20V)
Strain
relief
Main
chassis
A35.
36.
37.
38.
39.
40.
RDG.O22
(RDG-0301
RAC-182
REC-369
R
KP.296
RBH.924
ACT4OPOSOFNi
vc230P060FMc
vc230P080FMc
cM230P050FMC
ATZ4OPOSOFMC
AC cord
Switch assembly
Switch bracket
Push knob K (DOLBY NR
ON, DOLBY NR OFF, MPX
FI
LTER}
Foot assembly
Bottom plate
Connector assembly6P
Connector assembly2P
REC
joint C
Binder
UL cord clamperB
Screw 4x8
Screw 3x6
Screw 3x8
Screw 3x5
Screw 4x8
6.
7.
8.
9.
10.
*t
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
VBZ3OP0SOFMC
Screw3xS
21.
22.
23.
24.
25.
26.
27.
24.
29.
30.
31.
* 32.
33.
34.
RAC-217 Function knob T
BMZ30P060FMC Screw 3x6
56. REB-268 Cushion
A
A

3
2
@
{
A
B
o
{
49
(
l9
I
\_
C
Volumeretaining
nutand washer
D
3
2

6
5
4
A
@
{
)B
T-47
C
D
6
4,'"1-

3
2
99
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PartsList
Mark No. PartNo. Description Mark No Part
No. Oescription
1. RNK-995
2. REB-447
3. RNL-329
4. RBH-871
5. RNL-291
o.
** 7. RX8-377
8. RBF-O57
** 9. RXB-360
10. RED-194
Cylinder
O ring
Pi
ston
Pocketreturn
spring
Ejectlever
Side
plate
L assembly
A
Supplyreel
baseassembly
Washer
TU reel baseassembly
Detector
fel
t
Detector
disk
Detector
spring
ldler
pressure
spring
A6tion lever
Actionlever spring
Head
base
ldlerarm
full assembly
Washer
TU idler
ldlerarmassembly
Subheadbase
Erasehead
Headadjustspring
REC/PBhead
HBdrivespring
HB return spring
Pincharm assembly
Pinch
pressure
spring
Lock
plate
Lock plate
spring
Pocket
spring
L
PocketL
Pocket
frame A
PocketR
Pocketspring
R
RECdetectorarm
Detectorarmspring
Halfsetspring
Plunger
solenoid
Chassis
assembly
Cam
gear
Lock
leverspring
L
ldler
gear
Lock
lever
spring
R
HB locklever
Oilstopper
lvletal
holder
assembly
Leverswitch
Drive
arm
f
ullassembly
Drive
pulley
assembly
** 51. RE8-455
52. RBH,B76
53. RBH-877
54. RBH-878
55. RNL-297
56. RNL-282
51. RNL-296
** 58. RE8-454
* * 59. RE8-453
60. RX8-576
Drive
beltB
Gear
lever
spring
A
Gear
lever
spring
B
Gear
lever
springC
Gear
leverA
Gear
lever
B
Gear
lever
C
Drive
belt A
Capstanbelt
Flywheelassembly
Cam
gear
Triggerspring
Brake
plate
Action
plate
spring
FF action
plate
REWaction
plate
Joint
L
Joint R
Gear
leverR
Triggerspring
R
Detector
lever
Link
Stop lever
RECaction
lever
Cam
gear
R
Pause
lever
Pauseleverspring
F
lywheel
receptacle
Motor assembly
Leafswitch
UL cordclamper
Thrust receptacle
RECaction
plate
REC returnspring
Lever
switch
Plate
Ejectactionplate
Eiect
actionspring
Side
plateR assembly
Platestopper
Ratchet
holder
Ratchet
pin
Ratchetspri
ng
REC
connection
arm
Button
returnspring
Functionbutton
Pausebutton
Link returnsprtng
Screw
Washer
-
rtt
**
t*
11. RNL-318
12. RBH-885
13. RBH-873
14. RNL-298
15. RBH-875
16.
11. RXB-579
18. WA17D040D025
19. RNL-337
20.
21. RNL-050
22. RPB-O85
(RPB-0961
23. RBH-723
24. RPB-091
(RPB-O97)
25. RBH-782
26. RBH-874
27. RXB-495
28. RBH-890
29. RNL-303
30. RBH-922
31. RNL-057
32. RNL-332
??
34. RNL-333
35. RNL-058
36. RNL-284
37. RBH-883
38. RBK-166
39. RXP-l
12
40.
41. RNL-322
42. RBH-905
43. RNK-998
44. RBH-908
45. RNL-285
46. RBF-030
41. RX8-582
48. RSN-034
49. RXB-577
50. RX8-580
RBH-882
RSN.O33
RBH-872
RE8-437
RN
L.334
RBH-870
R
BH-888
RNL.293
RBH-889
RNL.287
RNL-279
RBH.886
vcz26P090FMC
YE2SFUC
ot.
ol.
oJ.
64.
65.
66.
o/.
oo.
bv.
10.
11.
73.
74.
15.
76.
77.
18.
** 79.
** 80.
8i.
62.
83.
84.
** 85.
6b.
87.
88.
89.
90.
91.
92.
q?
94.
Y5.
96.
91
.
oq
99.
100.
RN
L-288
R
B
H.879
RNL.280
RBH.884
RNL-292
RNL-290
RN
L-277
RNL.276
RN
L-281
RBH.881
RNL-274
RNL-275
RNL-289
RNL-294
RNL.295
R
B
H.880
RXM-088
RSN.O25
?*t
13

'l01
. Vcz26P060FMC
102. WA210040D25
103. PMZ20P130FMC
104. IMZ20Y120FMC
105. PMZ20P120FMC
106. ATZ26P060FZK
107. NK90FUC
108. RBE-021
109. YE20FUC
110.YElSFUC
Mark No. Part No. Description Mark No. Part No. D6scription
Screw
Washer
Screw
Screw
Screw
Screw
Nut
Washer
Washer
Washer
111.
YS2OFBT
't12. PMZ20P080FMC
113. PMA26P040FMC
114. RBH-916
115. RE8-466
116. RNL-384
117. RBH-90t)
't18. VCZ26PO40FMC
No. PartNo.
1, RH4-235
2. RHG-502
3. RR B-176
4. RHX-031
5. RDE-O10
6. REA-030
Washer
Screw
Screw
Action plate spring L
Brake shoe
REC button
Pause
button spring
Screw
Description
6. PACKING
Pad
Packingcase
Operating instructions
(English
)
SheetC
Connection cord
Stopper assembly
7. PARTS LIST
NO?ES:
c When ordering resistors, first conuert resistanceualuesinto code form as shown in
the fo llo wing e
xample s.
Ex. I When there are 2 effectiue digits (any digit apart from 0), such as 560 ohm
and 47k ohm (tolerance
isshown by J = 5%,and K = 107o).
560c" 56 x 10' 561 . . RDY4PS
[5@]tr/
47he 47
x 103 473 . . RD%PS
@AAJ
0.5e 0R5 . . RN2H @Etrl(
Ifl 010.. RslPOaoK
Ex. 2 When there are 3 effectiue digits (such as in high precision metal film resis-
tors).
5.62ha 562x 10t 5621.
. . . RN%SR
trEEEr
c The .i, marh found on some component parts indicates the importance of the
safety factor of the part. Therefore, uhen replacing, besure to use
parts of identical
designation.
t For your Parts
Stoch Control, the fast mouing items are indicated with the marlzs
** and *.
** GENERALLY MOVES FASTER THAN *.
This classification shall be adjusted by eachdistributor becauseit depends on model
number , temperature,humidity, etc.
14

Miscellaneous
Parts
P.C.
BOARD
ASSEMBLIES
Mark Part No. Symbol & Description
coMA 223K
50
coMA 153K50
coMA 103K50
coMA 472K
50
coMA 332K50
coMA 182K
50
coMA 102K50
coPA 332J100
CKDYF
473250
ccDs|-
181K50
ccDSL101K50
ccDsL 220K50
ccDSL 101 K 500
A Rcc-oo6
c311
c120,c122,
C220,C222
c317
c121,
C221
c116,C216
c31
0
c308,c309
c3't2
c313-C315,
C327
c104, c204
c114,
C214
c107,c207
c't41, c241
c332(0.o1/ACl25V)
Mark Part
No. Symbol & Sescription
RWX.574
RWX-571
OTHERS
Mark Part No.
Mother assembly
Meter assembly
Symbol & Description
A
A* RTT-236
R
DG-022
(RDG-O30)
** RXM-088
** RPB-O85
(RPB-096)
** RPB-091
(RPB-097)
* RXP-112
** RSN-025
** RSN-033
** RSN-O34
Power transformer (
120V)
AC cord
Motor assembly
Erase
head
REC/PBhead
Plunger
solenoid
Leaf switch (S8l
Lever
switch
(S7)
Leverswitch (56)
RESISTORS
Note: When orderingresistors,
conuerttheresistance
value
into code
form, andthenrewritethe
part no.asbefore.
Mark Part No. Symbol & Description
Mother
Assembly
(
RWX-574)
CAPACITORS
Mark Part No. Symbol & Description
RCP-1
50
(RCP-195)
RCP-149
(RCP-193)
RCP-155
(RCP-200)
RD%PSFtrtrtrJ
RD1/4PM
DONJ
RDTAPM
8trtr JNL
RD74PM
trtrDJ
VR101
, VR201
Semifixed
(22k-B)
VR102,VR2O2,
VR301
Semifixed
(1
0k-B)
VR103,V8203
Semifixed
{150k-B}
R301,R318
8103,R203,
R317
R104, R204
R101,R102,R105-R158,R20't.
R202,
R205-R258,
R302,R303,
R305-R31
5,
R31
9-R322.8336
Symbol& Description
A
A
ccDSL 471K
50
CEANLIOOM
16
CEA
RlOM
50
CEAR22M
50
CEA
R33M
50
CEAR47M
50
cEA O10M50
cEA
101M
10
cEA 100M16
cEA 220M
16
cEA 330M
16
cEA470M16
cEA101M
16
cEA
221M
16
cEA471M16
cEA 101M
25
cEA471M
25
cEA 102M
25
coMA 1@K50
coMA 393J 50
coMA 273J50
coMA 153J50
coMA 103J
50
coMA 153J50
c102,c136, C202,
C236
c105.
c205
c124, C126,C224,
C226,
C322
c142, C242
c123,
C127,C223,C227
c129, C229
c132,C232,
C318,
C320
c306
cl09, c110,c113,
Cl15,
C117,
c119,C125,
Cl30,
Cl31,Cl37-
c1
39,C209,
C210,C213,
C215,
c217, C219,C225,
C230,
C231,
c237-C239, C323,C307
c324, C325,C330
cl08. c208,
c319,C326
cl03, cl 18,
C140,C203,
C218,
c240,
c316
c304
c328
c305,c331
c303, c329
c301
c302
c321
c135,
C235
c133,Cl34,C233,C234
c112
c111,C211
c212
SEMICONDUCTORS
Mark Part No.
** 25C2240
** 2sc174oLN
(2SC1815)
(2SC2634NC)
l2SC2021l
A *'t 2sD837
(25D686)
(2SD1031
)
** 2scr74oLN
A ** 2sc2o6o
{25C2673)
(2SC1383NC)
** 2SA933LN
(2SA937)
(2SA1015)
(2SA1127NC)
** HA11226
0101,0102,4201,0.202
01
03-0109, 0203-0209, 0305,
0306, 0308, 0309
o301
0302-0304
0307
o310
tc301
'1
5

Mark Part
No. Symbol & Description
tc302
rc303
D10t,
D201
D102,
D202,D306-D314
D301.D302
D303,D305
D304
2D301
2D302
2D303
zD3U
Symbol & Description
SEMICONDUCTORS
Mark Part No. Symbol & Description
-
-
-
A
A
**
**
*
*
*
*
*
*
*
*
8A336
M5218L
1K34A
(1K60A)
(oA90)
152473
(us1040)
slBVlO
WO3B
(w03c)
WO3B
(wo3c)
wz-135
wz-o73
wz-M4
BZ-140
** 8A6124
* LNl2156P
Indicator
Assembly
Mark Part No.
tc701
, tc702
LED7O1,
LED7O2
Symbol & Description
RD%PM122J
* LN217RP
Volume
Assembly
Mark Part No. Symbol & Description
R401
LED4O1
SWITCHES
AND COILS RCV-095
Switch
Assembly
Mark Part No. Symbol & Description
VR501
-1,
VR501
-2
Volume
(INPUT}
Mark Part No.
** RSH-049
** RSG-I
18
** RSG-I19
A ** RsA-oss
RTF.O89
RTF-084
RTF.O85
RTD.026
RTF-057
OTHERS
Mark Part No.
S301-1
-S3O1-1
2 Slideswitch
(REC/P.B
SELECTOR)
s302-1 - S302-4, 5303-1,
5303-3 Push
switch assemblvB
(TAPE
SELECTOR}
S3O4
Pushswitch assemblyC
(REC
MUTE}
5305 Power switch
L101,L201,
MPX
filter
L1O2, L2O2 Trap coil
L103, L203 Peaking
coil (3.9mH)
L301 OSCcoil
L302 Linecoil
Symbol & Description
RD74PM125J
** RSG-I33 R601.
R602
s601-1, S601-2,
5603-1, 5603-2
Push
switch
(DOLBY
NR.
MPX)
B
KB-O18
R
KN-074
RBA-039
RBF.O41
Meter
Assembly
CAPACITORS
Mark Part No. Symbol & Description
Terminal
(LINE)
S'101
,5201 Jack
assembty
Tapping screw
Ceramic tube
(RWX-571)
cEA 100M
16
CKDYF
473250 c701,
c702
c703
RESISTORS
Note: When ordering resistors, conuert the resistance ualue
into code form, and then rewrite the part no. as before
Mark Part No. Symbol & Description
A RD%psF68oJ
RDI/4PMDENJ R701.R702
R703-R708
to
-

External
Appearanceof Transistorsand lCs
2SC1
81
5
25C2240
2SA1015
Type No
2SC1740LN
2SA933LN
2SC2060
2SC2673
2SC2634NC
2SA1127NC
2*2021
2SA937
,.r.-m
2sc1383Nc
,_",,u"ffit'o
s
!\
N
,r0.".--SS$
l\I I
-[iW-"'n'
|l
[)/
B v tl
f'--4
rvce
r.ro-
J\l I
n'.'-ffi/-r-'t ru"
g
il\
c!
A-\
2sD1o31 rvo.
r'ro
f\)l
s/"'*"
I
Uy
8A61
24
8A336
M5218L
HA11226

E8.P.c. 1
BOARD lrl
CONNECTION
DIAGRAM
A
INOICATOR
Ass'y
B
SWITCH
Ass'y
c
VOLUME
Assty
D

r ---: , i --
-at'tr*-.-3'-,1 I :
j'' I i ir'rrirl-
/r'r!v r'rr' 1)\
i - (}i:-**-c--e-1 i i ,-{r)-"iry3 r MoTHER
Ass'y
(RWX-574}
I i I i j i | \-,', 1t4^-5, i ' ' .--,-
I I i i i i | \;" lta*-); i I
ti
i I lalos Q2osl i i | | I Q3o4o3ol Qlo4 i
c301Q2o1!Q2o2Qlo8p2o8iIc3o3Qlo|q|o2q3oEQ3o9Q31oQ3o7h3o2Q1o3Q2D7Qlo7la1o6Q3o3Q1o5Q2o6Q2o4Q2o5
K
o@ T**
]r d--tI
t-i
I*-l
arlt+lan
oolo o loo
fllP
| | grrP
a b dllb
TAPE
SELECIOR
6
5
4
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I
8
7
A
B
-
-
C
-
D
LI
I
7
RED
i /:-, IOR
METER
Ass'y (RWX