Sanyo MCD-S730F User manual

Service Manual
CONTENTS
si///4
IFILE NO. I
CD Portable Audio
AM/FM Stereo
Cassette Recorder
MCD-s730F (AU)
(UK)
(XE)
tibi-1
~
mu=@ml
I1-
.
PRODUCT CODE No.
14268004 (AU)
14268002 (UK)
14268003 (XE)
SPECIFICATIONS ................................................................. 1PARTS LIST ..........................................................................8
LASER BEAM SAFETY PRECAUTION ............................... 1EXPLODED VIEW (TAPE DECK MECHANISM) ...............11
REMOVAL &INSTALLATION .............................................. 2EXPLODED VIEW (CD MECHANISM) ............................... 13
TUNER ADJUSTMENTS .......................................................4IC BLOCK DIAGRAM& DESCRIPTION ............................ 14
TAPE DECK ADJUSTMENTS .............................................. 5IC &TRANSISTOR VOLTAGES ......................................... 19
WIRING CONNECTION ........................................................ 6SCHEMATIC DIAGRAM &WIRING DIAGRAM .................20
EXPLODED VIEW (CABINET &CHASSIS) ......................... 7
REFERENCE No. SM580862

SPECIFICATIONS
(CASSETTE SECTION)
Recording System . ........ AC bias, 4-track stereo
Erasing System ..................... Magnet erase
Tape speed ...........................4.75 cm/sec. (AU, UK)
4.8 cm/sec. (XE)
Fast forward and
Rewind time .110 sec. (C-60 tape)
Frequency range .................. 80-12,000 Hz (Normal tape)
(CD SECTION)
Channels ...............................2 channels
SIN ratio ................................70 dB
Wow &Flutter ........................ Undetectable
Sampling frequency ..............44.1 kHz
Quantization ... ....... ............ 16 bits linear/ch
Pickup light source Semi-conductor laser
Pickup wave length ...............790 nm
Laser output .......................... Continuous wave max. 0.6 mW
(RADIO SECTION)
Tuning range ......................... FM :87.5-108 MHz
AM :525 -1,710 kHz (AU)
:522 -1,611 kHz (UK)
:526.5 -1,606.5 kHz (XE)
Antenna ................................. FM :Telescopic rod
AM :Built-in ferrite ba
(GENERAL)
Power output .........................3.0 Wx2 (DC max)
70W(P.M. P. O.) (AU)
65W(P.M.P.O.) (UK)
3.0 W/ch (DIN music) (XE)
Speaker ................................. 12 cm x2,
4ohms (AU, UK) ,8ohms (XE)
PIEZO X2
Terminal impedance . . . . .. PHONES :32 ohms
Power source ........................AC :230- 240V, 50Hz (AU)
:230V, 50Hz (UK,XE)
DC :12 V(8 “D” size batteries)
Dimensions .......................... 555 (W) x 250 (H) x 235 (D) mm
Weight (approx.) .................... 5.3 kg (including batteries)
Specifications subject to change without notice.
LASER BEAM SAFETY PRECAUTION
●Pickup that emits alaser beam is used on this CD section. 1—-F 1-
() 0Ju()
CAUTION :1
USE OF CONTROLS OR ADJUSTMENTS OR #
0. . 00
PERFORMANCE OF PROCEDURES OTHER ●mbI
THAN THOSE SPECIFIED HEREIN MAY RESULT oc)
IN HAZARDOUS RADIATION EXPOSURE. c) o
u
LASER OUTPUT ................ 0.6 mW Max. (CW)
WAVE LENGTH .................790 nm [01
CUES1
IASERPRODUCT
LUOKAN1LASERbNIE
KLASS1iASERAPP/WAT
(AU,XE ONLY)
~—...—_—_ _——— .—— ——— ——— ——— ——
I
I
I
.——
11
CAUTION -INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL –USYNLIG LASER STRALING VED ABNING, NAR Ii
ISIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDG~ UDS AETTELSE III
FOR STR~LING.
VARNING -OSYNLIG LASER STRALNING NAR DENNA DEL AR OPPNAD IAIi
OCH SPARR AR URKOPPLAD. STR~LEN AR FARLIG.
VORSICHT -UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN
DECKEL GEOFFNET UND WENN SICHERHEITSVERRIEGELUNG “A
UBERBRUCKT 1ST. NICHT, DEM STRAHL AUSSETZEN.
VARO -AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
INAKYMATTOMALLE LASERSATEILYLLE. ALA KATSO SATEESEEN. III
L! !J
———————————————————————————
-1-

REMOVAL &INSTALLATION
“Unplug the AC power cord and remove the batteries before disassembling the unit. Remove cassettes or CDs from the unit.
●If bundles of wire are undone during the disassembly process, be sure to return them to their original state after operations are
complete. Make sure that you have the necessary fixers (61 4129 4971) for bundling wire on hand beforehand. Make sure that
lead wires are not too close to heat producing parts such as heat sinks.
1. FRONT CABINET
1. Remove the BATTERY LID.(O)
2. Remove the 6REAR CABINET mounting screws.(@)
3. Open the CASSETTE LID.(@)
4. Remove the VOLUME and TONE control knobs.(@)
63!?
,/’
2. CD LID BLOCK
1. Remove the 2CD LID BLOCK mounting screws.(o)
2. Remove the CD LID BLOCK.(@)
-2-
3. CD MAIN P.W.BOARD & CD BASE MECHANISM
1. Remove the 3CD MAIN P. W. Board mounting screws to
remove the CD MAIN P.W. Board. (@,@)
2. Remove the 4CD special screws to remove the CD BASE
MECHANI

REMOVAL &INSTALLATION
4. CD DOOR
1. Hook the CD DOOR SPRING.(O)
2. Pushing the portion direction@ to open the CD DOOR.(@)
3. Remeve the CD DOOR.(@)
4. Pull up the CHUKING BRACKET in the direction of arrow
@to remove the CHUKING BRACKET in the direction of
arrow @.
6. SETUP THE POINTER e
5. TAPE MECHANISM& TUNEFVAMP P.W.BOARD
.
85%&
@)@
-3-

TUNERADJUSTMENTS
●Use aplastic screw driver for adjustments.
●Adjust the intermediate frequency pf AM and FM to the frequency of ceramic filter.
●Set of unit
Supply voltage :DC12V
Speaker :4 ohms
Standard output :50 mW (450 mV)
Function switch :RADIO
PARTS LOCATION —
BAND L1OO5 FUNCTION
‘“’ ~‘w
❑[—’
L1OO4 @VC ❑L1OO3
L1002~
m
PATTERN SIDE
.......................-(
J9 ,---------- ..... . ... . ...I
IADJUSTMENT Band switch :AM
Adjusting Connection ISG IPosition of 1Adiust- 1VTVM I
Circuit Input
Closed the out~ut
1. A
F
Ster
1
output Frequency tuning dial ment“Oscilloscope
Connect sweep
generator to 460 kHz Low T1 002
IC1OO1 @(H) and
A
Connect VTVM to 515 kHz Low end L1OO4 Max.
speaker terminals. 1640 kHz High end TOl
Connect VTVM to 600 kHz
~600 kHz JL1 005 Max.
IF
Tuning
terminal by sweep
generator, it place
to L1OO5.
Connect AM SG to
2
3coverge TEST LOOP.
L4Tracking Connect AM SG to
5TEST LOOP,
6Repeat adjustments. I
ADJUSTI
Adjusting
Circuit
SNT Band switch :FM FM Dummy an
Position of
tuning dial
ma: 75 ohn
Adjust-
ment
unbalance
VTVM
Oscilloscope
Iection SG
FrequencyInput
Connect sweep
b
genera rto
IC1OO1 23 (H)
and VC LUG.
Connect FM SG to
output
Connect sweep
b
genera rto
ICIOOI 16 (H)
b
lCIOO;n 4(E).
Connect VTVM to
IF
(V-curve
&
S-curve)
TI 003
10.7MHZ Low
TIOO1
Tuning
coverge
Tracking
L1 003
TC3
L1 002
TC2
Low end
High end
90.OMHZ
106.OMHZ
Max.
Max.
9(H)& VC LUG (El
Connect FM SG to speaker terminals. Connect VTVM to
9(H)& VC LUG (El speaker terminals.
Repeat adjustments.
-4-

TAPE DECK ADJUSTMENTS
l.HEADREPLACEMENT
●After replacement, demagnetize the heads by using adegausser.
●Be sure to clean the heads before attempting to make any adjustments.
●All wiring should be returned to the original position after work is completed.
Mm
2. HEAD AZIMUTH ADJUSTMENT
(1) Load the test tape(VTT-703, etc., 10 kHz) for azimuth [bl< Y‘“’’’’’””
adjustment.
(2) Press the PLAY button.
(3) Use across-tip screwdriver to turn the screw for azimuth
adjustment so that the left and right output are maximized. q$$ >
.,
(4) Press the STOP button.
(5) After completion of the adjustment, use thread lock(TB-1 401 B)
m~g
to secure the azimuth-adjustment screw.
3. MOTOR REPLACEMENT
4. MOTOR SPEED ADJUSTMENT
(1)
(2)
(3)
Insert the test tape(MIT-111 N, etc., 3,000 Hz).
Press the PLAY button.
Use aflat-tip screwdriver to turn the SVR(located inside the 4:” L
rear of the motor) to adjust SVR so that the frequency counter
become 3,000 Hz.
~n J
@
5. CHECKING THE MECHANISM TORQUES AND TENSION BACK SIDE OF SET
●Clean the head, capstan and pinch roller before making any measurement.
Measurement Take-up torque Back tension Tape tension
Cassette for PLAY :TW-21 11A PLAY :TW-21 11A Drive-power cassette
measurement F. FWD/REW :TW-2231 TW-2412
PLAY 30-60 gr.cm 2.0- 4.5 gr.cm 60 gr or more
F.!+JD 55-120 gr.cm ----- -----
REW 55-120 gr.cm ----- -----
-5-

--
WIRING CONNECTION
CD MECHANISM
ICD CONTROL P.W.B
I
I
L-CH SPEAKER BOX
u
CNP2
(2P)
(2-%$
BATT P.W.B F
—– I
CN3
(4P) ITUNER IAMP
1CN—P21
(6P)
CN21
(6P) 11-
___!i!i
m
o
0
0
R-CH SPEAKER BOX
t’
-6-

EXPLODED VIEW(CABINET &CHASSIS)
16 ..s .,--
15
4
?0:Y02
YIIT%4ZZ?
wY17
-7-

PARTS LIST
PRODUCT SAFETY NOTICE
EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE
IEC SYMBOLA IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATE COMPONENTS IN WHICH SAFETY CAN
OF SPECIAL SIGNIFICANCE. WHEN REPLACING ACOMPONENT IDENTIFIED ,USE ONLY THE REPLACEMENT PARTS
DESIGNATED, OR PARTS WITH THE SAME RATINGS OF RESISTANCE, WATTAGE OR VOLTAGE THAT ARE DESIGNATED
IN THE PARTS LIST IN THIS MANUAL. LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS MUST BE MADE TO
DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING
THE PRODUCT TO THE CUSTOMER.
CAUTION :Regular type resistors and capacitors are not listed. To know those values, refer to the schematic diagram.
Regular type resistors are less than l/4W carbon type and Oohm chip resistors.
Regular type capacitors are less than 50V and less than 10001.JF of Ceramic type and Electrolytic tvpe.
N.S. P:Not available as service parts.
PACKING &ACCESSORIES
REF. NO. PART NO.
6142919408
6142919415
6142919422
6450266225
6450266232
6450203626
6142919583
6142919590
6142919606
6142458570
6142316832
A6450170805
A6450221576
A6450267871
CABINET &CHASSIS
REF. NO. PART NO.
16450266447
36450266119
4
4
4-1
4-2
4-3
5
6
7
8
9
10
11
12
13
14
15
16
17
17-1
18
19
20
21
22
6450265815
6450267932
6450265860
6450265891
6450266072
6450265952
6450265969
6450266454
6450266010
6450266027
6450266034
6450266041
6450266058
6450266065
6450266133
6450266386
6450266409
6450265853
6450265884
6450263941
6450266256
6450251542
6450265990
6450266096
DESCRIPTION
CARTON (UK)
CARTON (XE)
CARTON (AU)
CUSHION TOP
CUSHION BOTTOM
POLBAG,AC LINE CORD (AU, UK)
INSTRUCTION MANUAL, (UK)
INSTRUCTION MANUAL,
INSTRUCTION MANUAL,
NOTICE,AC LINE CORD (UK)
LABEL, SAFETY, REAR CAB
AC LINE CORD SET (XE)
AC LINE CORD SET (AU)
AC CORD SET,BS APP (UK)
DESCRIPTION
ASSY,CASSETTE LID
CASSETTE DOOR SPRING,
LID CASSETTE
PANEL FRONT (AU)
PANEL FRONT (UK,XE)
DIAL LENS
CD DISPLAY
CD BUTTON SET
ROTARY KNOB, VOLUME
ROTARY KNOB,TONE
ASSY,CASSETTE GEAR
CASSETTE BUTTON REC
CASSETTE BUTTON PLAY
CASSETTE BUTTON REW
CASSETTE BUTTON FWD
CASSETTE BUTTON STOP/EJECT
CASSETTE BUTTON PAUSE
MOUNTING BKT CASSETTE BUTTON
ASSY, BOX FRONT L
ASSY,BOX REAR L
LID CD
CD DOOR LENS
ASSY, PULLY CD CHUCKING
CD DOOR SPRING
ASSY,GEAR CD DOOR
CD DOOR BUTTON, OPEN/CLOSE
CD BRACKET
REF. NO.
23
24
25
26
27
or
or
28
29
30
31
32
33
34
35
36
37
38
39
.
PART NO.
6450252563
6450252570
6450252600
6450265938
6450267840
6450273049
6450273100
6450266140
64.50265839
6450265945
6450266102
6450266294
6450266089
6450265983
6450266003
6450265976
6450266393
6450266416
6450252556
DESCRIPTION
RUBBER CUSHION CD
RUBBER CUSHION CD
SPECIAL SCR CD
HANDLE
ASSY,CABINET REAR (UK)
ASSY,CABINET REAR (AU)
ASSY,CABINET REAR (XE)
ROD ANT CONNECTING WIRE,
CAB REAR
LID BATTERY
ROTARY KNOB, TUNING
VC GEAR
DIAL POINTER, TUNING
DIAL BRACKET
SLIDE KNOB, FUNCTION
PUSH BUTTON,BASS XPANDER
SLIDE KNOB,BAND
ASSY,BOX FRONT R
ASSY,BOX REAR R
CD BRACKET 9503,CD MAIN
FIXING PARTS
REF. NO. PART NO.
Yol 6450266171
Y02 6450252365
Y03 6450266218
Y04 6450269523
Y05 6450266218
Y06 6450252426
Y07 6450266188
Y08 6450237935
Y09 6450266171
Ylo 6450252402
Yll 6450266164
Y12 6450266195
Y13 6450252402
Y14 6450266195
Y15 6450266218
Y16 6450252372
Y17 6450252372
Y18 6450252426
Y19 6450252365
Y20 6450235627
Y21 6450266195
Y22 6450266195
Y23 6450252426
DESCRIPTION
SCREW 3X8, CASSETTE BUTTON BKT
SCREW 3X8, FRONT PANEL PCB
SCREW 3X20, SPEAKER BOX L
SCREW 3X8, ROD ANT
SCREW 3X20, SPEAKER BOX R
SCREW 3X12,GEAR ROTARY
SCREW 3X1 O,TUNER KNOB
TOOTH WASHER,VC GEAR
SCREW 3X8,CD SWITCH BD
SCREW 2X8,CD MECHA BKT
SCREW 2X4, RIP PCB
SCREW 3X12,AC SOCKET
SCREW 2X8,CD BRACKET 9503
SCREW 3X12, DECK TO REAR
SCREW 3X20, CABINET REAR
SCREW 3X8, SPEAKER BOX L
SCREW 3X8, SPEAKER BOX R
SCREW 3X12, PWR TRANS
SCREW 3X8, FRONT PANEL
FIBER WASHER,CD BD
SCREW 3X12, TUNER BD TO DIAL BKT
SCREW 3X12,CD PCB TO BKT
SCREW 3X12, MOUNT
-8-

ELECTRIC-PART
REF. NO. PART NO. DESCRIPTION REF. NO.
51 6450215452 5 SPEAKER,SPK LISPK R
52 6450203473 PIEZO BUZZER,SPK L/SPK R
53 6450203534 ROD ANTENNA
CD CONTROL P.W.BOARD ASSY
REF. NO.
71
71
CNP14
CNP15
CNP501
CNP501
D0701
D0702
D0703
D0704
D0705
D0706
LD701
LD701
LD702
LD703
LD704
Q0701
Q0702
SW701
SW702
SW703
SW704
SW705
SW706
PART NO.
6142933237
6142934005
6450251832
6450266263
6450265624
6450141218
6450268816
6450114533
6450168956
6450168956
6450168956
6450168956
6450168956
6450168956
6450252044
6450267901
6450251771
6450251771
6450251771
6450169205
6450169205
6450251801
6450251801
6450251801
6450251801
6450251801
6450251801
DESCRIPTION
ASSY,PWB,CD CONTROL (AU)
ASSY,PWB,CD CONTROL (UK,XE)
2P J.WIRE AWG26UL Xl ,
CD MAIN P.W.B TO CNP501
11P F.WIRE UL,
CD MAIN P.W.B TO CNP14
11P WAFER,TO CD MAIN P.W,B
2P WAFFR H-TYPE,TO CD MAIN P.W.B
2P WAFFR ,TO TUNERIAMP P.W.B
(UK,XE)
2P WAFER,TO TUNERIAMP P.W.B
SW DIODE 1N4148
SW DIODE 1N4148
SW DIODE 1N4148
SW DIODE 1N4148
SW DIODE 1N4148
SW DIODE 1N4148
LED, SL-3255-30,GN, DISPLAY (AU)
LED, SL-3255-30,GN, DISPLAY (UK,XE)
LED,SEL-2110R,PLAY /PAUSE
LED, SEL-2110R, REPEAT
LED, SEL-211OR,MEMORY
TRANSISTOR 2SC536
TRANSISTOR 2SC536
SWITCH EVQ-QB205K,PLAY /PAUSE
SWITCH EVQ-QB205K,STOP
SWITCH EVQ-QB205K,F FWD
SWITCH EVQ-QB205K,F B
SWITCH EVQ-QB205K,REPEAT
SWITCH EVQ-QB205K,MEMORY
BATT P.W.BOARD ASSY
REF. NO. PART NO. DESCRIPTION
72 6142933244 ASSY,PWB, BAIT
6450203206 BATTERY TERMINAL SPRING,( - )
CNP02 6450265570 2P J.WIRE AWH26UL,
TO TUNER/AMP P.W.B
CD SW P.W. BOARD ASSY
REF. NO. PART NO. DESCRIPTION
73 6142933251 ASSY,PWB,CD SW
CNP22 6450141188 2P J.WIRE 26UL 250 MM,
TO CD MAIN P.W.B
SW601 6450251818 MICRO SW LF-101-O,OPEN/CLOSE SW
TUNER/AMP P.W.BOARD ASSY
ACOOl
AFCO1
C1OO9
Clolo
C1035
Cllol
C1105
C1106
C1107
C1112
C1114
C1115
C1131
C1132
C1135
C1201
C1205
C1206
C1207
C1212
C1214
C1215
C1231
C1232
C1235
C1404
C1405
CFOO1
m=nni
-----
CFO02
CNO02
CNO03
CNO04
CNO05
CN101
CN201
CN502
D1OO1
D1002
D1OO4
D1OO5
D1OO6
D1OO7
REF. NO. PART NO.
74 6142933909
74 6142933923
6450141188
6450265648
DESCRIPTION D1OO8
ASSY,PWB,TUNER/AMP (UK,XE) D1041
ASSY,PWB,TUNER/AMP (AU) D1301
2P J.WIRE 26UL 250 MM, D1501
CD MAIN P.W.B TO CN502 D1502
FERRITE CORE,CE D1503
-9-
PART NO.
6450265655
6450266522
6450141966
6450265693
6450266546
6450202995
6450265716
6450170195
6450267949
6450273063
6450265679
6450161971
A6450221590
6450140945
6450203138
6450265532
4031355702
4030571202
4030606904
4030596908
4030630800
4030619003
4030571905
4031255507
4030581904
4030606904
4030608908
4030571202
4030606904
4030596908
4030630800
4030619003
4030571905
4031255507
4030581904
4030606904
4030608908
4030619003
4030581904
6450209468
6450267888
6450169151
6450206771
6450172045
6450265617
6450251917
6450114533
6450114533
6450169342
6450168956
6450168956
6450169250
6450169250
6450169250
6450169250
6450168956
6450168956
6450168956
6450168956
6450168956
6450168956
DESCRIPTION
FERRITE BEAT,CE CN7 PIN
CABINET MOUNTING PLATE,
FOR Q1OO3
SCREW, PVC
SCREW 2.6 X5, PVC TO DIAL DRUM
SCREW 2.6 X5, FOR Q1oO3
SCREW, HEATSINK
NUT M3,1C HEATSINK
CABLE TIE 4“,FOR CD
BRACKET-E,AC SOCKET (UK,XE)
SCREW 2.6X6, PVC TO DIAL DRUM
BAR ANTENNA HOLDER
FERRITE BAR
AC SOCKET,VDE APP
AFCFV-1043 (UK,XE)
POLY CAP 120PF 50V
POLY CAP 1000PF 25V
ELECT 4700U M25V
POLYESTER O.OIU M50V
POLYESTER 3300P M50V
POLYESTER 0.022U M50V
POLYESTER 6800P M50V
POLYESTER 4700P M50V
POLYESTER 0.1 UJ50V
ELECT 1000U M16V
POLYESTER 1500P M50V
POLYESTER 3300P M50V
POLYESTER 0.033U M50V
POLYESTER 0.01 UM50V
POLYESTER 3300P M50V
POLYESTER 0.022U M50V
POLYESTER 6800P M50V
POLYESTER 4700P M50V
POLYESTER O.l UJ50V
ELECT 10OOU M16V
POLYESTER 1500P M50V
POLYESTER 3300P M50V
POLYESTER 0.033U M50V
POLYESTER 4700P M50V,AC BIAS
POLYESTER 1500P M50V,AC BIAS
CERAMIC FlLTER,FCC,455kHz (AU)
CERAMIC FlLTER,CE,460kHz (UK,XE)
CERAMIC FILTER,1O.7MHZ
2P WAFER,TO BATT P.W. B
4P WAFER,
TO TAPE DECK MECHANISM
5P WAFER,TO REC SW P.W.B
4P WAFER,
TO TAPE DECK MECHANISM
2P WAFER,TO L-CH SPEAKER
2P WAFER,TO R-CH SPEAKER
2P WAFER,CD MUTING,
TO CD MAIN P.W, B
SW DIODE 1N4148
SW DIODE 1N4148
RECTIFIER 1N-4001
RECTIFIER 1N-4001
RECTIFIER 1N-4001
RECTIFIER 1N-4001
SW DIODE 1N4148
SW DIODE 1N4148
SW DIODE 1N4148
SW DIODE 1N4148
SW DIODE 1N4148
SW DIODE 1N4148

PARTS LIST
-- REF. NO.
D1551
D1552
FHOO1
FUOO1
FUO02
HSOO1
Iclool
Icl 002
IC1OO3
JACK1
L1OO1
L1OO2
L1OO3
L1OO3
L1004
L1OO5
or
L1401
PTOO1
Pvcol
Qlool
Q1oo2
Q1003
Q1401
Q1551
Q1552
R1018
R1020
R1112
R1212
Swool
SWO02
SWO03
SWO04
TIOO1
TIOO2
T1003
VOLO1
VOL02
VROO1
Zlool
\.. Z1OO2
PART NO.
6450168956
6450168956
6450142246
A6450267918
A6450267925
6450265723
6450251573
6450203237
6450268809
6450169328
6450209338
6450141089
6450266324
6450267864
6450141041
6450266355
6450265549
6450141058
A6450221552
6450256592
6450221507
6450251665
6450266485
6450251665
6450251658
6450251658
4010083503
4020045805
402071 1304
4020711304
6450265556
6450251795
6450265563
6450161896
6450251740
6450251757
6450251733
6450219931
6450203312
6450256585
6450171703
6450203282
DESCRIPTION
SW DIODE,CD MUTING 1N4148
SW DIODE 1N4148
FUSE HOLDER
APPFUSE,T-TYPE,T2A,L250V
PROTECTOR,AXIAL LEADS,lA
HEAT SINK S730
ICLA1826A
ICTA2068N
ICLA4597
ST.PHONEJACK
FMCOIL,FMANT
FMCOIL,FMRF
FMCOIL,FCC(AU)
FM COIL,CE (UK,XE)
OSC,AMOSC
ASSY,BARANT
AM COIL
BIAS/OSC,AC BIAS
X’FORMERT48-0264
PVC,AMIFMVC1 ,VC2,VC3,VC4,
TUNING
TR2SA1318T
TR2SC3330U
TR2SD2061E
TR2SC3330U,AC BIAS
TR2SD1936-U-AC,CD MUTING
TR 2SD1936-U-AC,CD MUTING
CARBON2.2JA l/2w
FUSIBLERES27J- l/4W(UK,XE)
FUSIBLERES 2.2JA l/4W
FUSIBLERES 2.2JA l/4W
SWITCHSH23E03G8,
AMIFMSWIA,B
SWITCH SKU-43D08-G8-NS,T /R/CD
SWITCH EX-13G(A),
0NIDBBSIOFFSW3 A,B
SWITCH,BEATCUT
IFT
IFT
IFT
ROTARYVR,VOL1 A,B,TONE
VR.ROTARY,VOL2 A,B,VOLUME
SEMI-FIXED,TAPE SPEED
ZENER,5.1V,112W
ZENER DIODE MTZT-72,9,1A,l/2W
CD MAIN P.W.BOARD ASSY
REF. NO.
75
75
Col 01
CO1O4
CO106
CO1O8
CO1O9
C0113
C0114
C0115
CO123
C0125
C0202
C0301
CNOO1
PART NO.
6142933220
6142933954
6450267857
6450273087
4030598902
4030608908
4030619607
4030605204
4030584608
4030573800
4030584004
4030589108
4030594409
4030608908
4031354705
4030573800
6450251887
DESCRIPTION
ASSY,PWB,CD MAIN (AU)
ASSY,PWB,CD MAIN (UK,XE)
AXIAL INDUCTOR,2.2UH (UK,XE)
AXIAL INDUCTOR,15UH (UK,XE)
POLYESTER 0.22U M50V
POLYESTER 0.033U M50V
POLYESTER 0.047U J50V
POLYESTER 3300P J50V
POLYESTER 0.15U J50V
POLYESTER O.l UM50V
POLYESTER 0,015U M50V
POLYESTER 0.018U J50V
POLYESTER 2200P M50V
POLYESTER 0.033U M50V
ELECT 2200U M10V
POLYESTER 0,1 UM50V
5P AWG28UL WIRE,
TO CD MECHANISM -1o-
REF. NO.
CNO02
CNO03
CNO11
CN012
CN013
CN014
CN015
CN021
CN022
D0401
D0402
D0404
QO1O1
or
Q0401
Q0402
Q0403
Q0404
Q0405
Q0501
Q0502
Q0601
Uolol
U0201
U0301
U0401
X0301
PART NO.
6450251900
6450254864
6450251924
6450114588
6450172052
6450266492
6450169342
6450172052
6450169342
6450251689
6450251689
6450251689
6450251634
6450273056
6450251641
6450251641
6450251634
6450251634
6450251672
6450251658
6450251658
6450251627
6450251603
6450251580
6450251610
6450251597
6450252051
DESCRIPTION
8P AWG28UL WIRE,
TO CD MECHANISM
6P AWG28UL WIRE,
TO SPINDLE/SLED MOTOR P.W, B
5P WAFER,TO CD MECHANISM
8P WAFER,TO CD MECHANISM
6P WAFER,
TO SPINDLE/SLED MOTOR P.W, B
11P WAFER,TO CD CONTROL P.W.B
2P WAFER,TO CD CONTROL P.W.B
6P WAFER,TO TUNERIAMP P.W, B
2P WAFER,TO CD SW P,W.B
SW DIODE GMBO1-BT
SW DIODE GMBO1-BT
SW DIODE GMBO1-BT
TR 2SA 1317
TR 2SB808F-SPA
TR 2SA 1346-AC
TR 2SA 1346-AC
TR 2SA 1317
TR 2SA 1317
TR 2SC 34OO
TR 2SD 1936-U-AC
TR 2SD 1936-U-AC
TR 2SB 764E
IC LA9240M
IC LA6541 D
IC LC78622E
IC LA6543F
CERAMIC RESONATOR,16.93MHZ
REC SW P.W.BOARD ASSY
REF. NO. PART NO.
76 6142933268
CNP04 6450265631
SW301 6450209352
DESCRIPTION
ASSY,PWB,REC SW
5P SSHIELD WIRE 28UL3,
TO TUNERIAMP P.W,B
PUSE SWITCH, RECORDING SW
AMPLIFIER P.W. BOARD ASSY
REF. NO. PART NO. DESCRIPTION
6142962749 ASSY,PWB,AMPLIFIER
6450171840 PCB,MOUNTING,POST
6450265716 NUT M3, POST
Q2001 6450273162 TR 2SD400-F-MPC
R2001 4020497000 RESISTOR 150 J- 3W
ZDOO1 6450273476 ZENER 16V,112W

EXPLODED VIEW(TAPE DECK MECHANISM)
A–103
W—127
@-128
+’&?’
130–* -–129
131—* :
132-$ I\N
144
f“
161
152
158 157
4
159—
‘% —160
f
1111
ii@ do
–117
II &_118
-11-

PARTS LIST
TAPE DECKMECHANISM(TK20FX-S811-9)
REF. NO,
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
-. 144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
PART NO. DESCRIPTION
6450137938 SHUB
6450115707 BSPRING
6450115479 RS ARM
6450115714 TAKE UP REEL ASSY
6450115509 DETECTION
6450115486 FF GEAR
6450115462 PPLATE S
6450115967 CSCREW 2X3
6450115653 FRAME ASSY
6450115752 ESLIDERS
6450116001 PB SCREW
6450115899 CT SCREW 2X4.5
6450115608 PSL SPRING
6450115844 SWITCI-I,MSW- 1541T,PLAY
6450115622 RR SPRING
6450115592 EA SPRING
6450115677 GGEAR
6450115981 CWASHER 2X3.5X0.3
6450115516 RF CLUTCH ASSY
6450115813 FBELT W
6450115738 FLYWHEEL ASSY(R)
6450238062 MBELT(C)
6450115769 MSP SCREW
6450115721 MMOUNT C
6450115776 BP SCREW
6450252617 ASSY,MOTOR
6450115875 BSCREW
6450115929 B3 LUG
6450252518 R/P HEAD TC-951 ,STEREO
6450146756 SSCREW
6450115554 ASPRING
6450137945 SCREW
6450115530 HEAD MOUNTING
6450115523 HP SPRING
6450115493 HPANEL
6450165252 MG ERASE
6450115547 MHEAD ARM
6450115615 MC SPRING
6450137921 GP SPRING
6450115684 SN PLATE
6450115691 GPLATE ASSY
6450115998 CWASHER 1.45X3 .8X0.5
6450115660 ASSY,PINCH ROLLER
6450115646 BASE
6450115578 SW PLATE
6450115820 PUSH ARM
6450115561 LEVER PLATE
6450115585 PC SPRING
6450115912 PLOCKER
6450115868 PSPRING
6450115851 SP STOPPER
6450115936 RR LEVER S
6450191176 PLEVER S
6450191169 RLEVERS
6450115950 FLEVERS
6450137914 SLEVER
6450115974 PL LEVER S
6450115639 PL SPRING
6450115882 FR SPRING
6450115905 PS SPRING
6450146763 CSCREW
-12-

EXPLODED VIEW(CD MECHANISM)
,—— ——— ——————— —____ ~
501
$?
II
“—— —— I1A
I
I
~(N.SP)
I
>505
%
o
.0 —503
N,S. P:Not available as service parts.
PARTS LIST
CD MECHANISM (CD94V5)
REF. NO. PART NO.
6450252532
501 6202228105
502 6202228112
503 6202232911
504 6202232928
505 6200218436
506 4110199906
DESCRIPTION
CD MECHANISM CD94V5
ASSY,MOTOR,2V,SPINDLE
ASSY,MOTOR,SLED,6V
PWB,MOTOR
SWITCH, LEAF, LIMIT SW
PLUG 6P,T0 CD MAIN P.W.B
SCR PAN PCS 1.7X3
-13-

IC BLOCK DIAGRAM &DESCRIPTION
IC1OO1 LA1826A
FM S
METER
~MN~E FM RF FM RF F~C~E OUTPUT AM IFM
MPX AM AGC DEMODULATORMPX
J!c 2!C R-CH
INPUT OUTPUT L-CH
Vco OUTPUT OUTPUT INPUT OUTPUT OUTPUT
m@—
1~ 11 r-r---k-
II I
El@Z+@+ i,AJC
pjsT
_
z<’ I
DECODER
AMP
ST -SW
FM -IF I
1+=$?%
u
REG [,1GND1 I‘:1 Imm
AM RF FM MIX AM MIX VREG FM IF AM/FM AM IF AM IFM P;~~T PHASE
INPUT OUTPUT OUTPUT INPUT lF~NMDPX INPUT lF~~PX ;?T L?ETD DET
IC1 002 TA2068N
Vcc
bllc(
Ikl;c(
R~F.(
GNO( )
3N,
1NI
H
y; {:; NAB LINE RADIO
OUT2~RAD1O REC MIC IN2 1N2 TAPE LINE PLAV INT/ EXT
-14-

IC BLOCK DIAGRAM& DESCRIPTION
ICI003 LA4597
NF
INPUT
GND
BIAS
INPUT
NF
)IBIAS STAND
BY
o
11 GND
1J
UO101 LA9240M
Vccl LDS LDD BH1 PHI LF2 VR REF1 VCC2 FSS D13FCE DAT CL CLK DEF
‘ii’ 61 60 59
[, APC RF DET
‘, Tw
Lll=FF=
I
IN
BAL
‘B%——i===i===
&Qil-
TE
+
TE- 6
TE 7
a
TH 10 I
TA 11
m
TD- 12 +– IF.SERVO &F.LOGICK —
-J
7
(’ I
-J —
—
k+–
SLC
E
RF Amp
+–
SLED SERVO
L--
-
FD-FA FA- FE FE- AGND SP SPISPGSP- SPD SLEQ SLD SL-SL+ JP-
Nc
TBC
FSC
DGND
SLI
SLC
RFS-
RFSM
Cv+
cv-
SLOF
HFL
TES
TOFF
TGL
JP+
-15-

IC BLOCK DIAGRAM &DESCRIPTION
UO101 LA9240M (CD RF Servo Signal Processor)
No.
-i 2
Y
Name
FIN2 I/o Function
IConnedon pinfor ptwto diode of pickup.
IFIN2+FINI=RF FIN2-FIN1=FF
No. Name Vo Function
%TOFF IInputpin for tracking off controlsignal from
digital signal processor. TOFF=H: off
26 TES oOutput pin for tracking error sense signal to
digitalsignal processor,
37 HFL IHigh frequency level signal use detection
FINI
EIlGmwction pin for photo diode of pickup. I
4FIE-F=TE
5TB IInput pin for DC ingredient of TE signal.
6TE- 1Connection pinfor gain setting resistorof TE II I main-beam position is on the pit or mirror. I
signal to TE signal pin.
TE oOutput pin for Tracking Error signal.
TES1 IInput pin for tracking error sense comparator.
TE signalthroughband pass, and inputted.
Scl IInputpinfor shock detection.
TH IConnection pin for time constant setting of
36 SLOF IInputpinfor sled servo offcontrol.
33 cv- 1Input pin for constant linear velocity error signal
40 Cv+ Ifrom digitalsignal processor.
41 RFSM oOutput pinfor RF signal.
42 RFS- 1Connection pinfor gain seting of RF and
II Ilconstantseting of3Tmmpensation of tie I
I I tracking gain.
11 ITA IO10utput pin for TA amplifier. I I IEFM signal with RFSM pin.
431 SLC IOISlice level control signal is output pin, itcontrol I
II IIlevel of data-slice bydigital signal processor of the I
~
IConnection pin for constant of tracking phase
com ensation, consist of between TD and VR.
IConnection pinfor constantof tracking
IConnection pinfor amplitude settingof
I I RF waveform,
441 SLI I IInput pin for level controlof data-slice by
digital signal processor.
45 DGND -Ground for digital signal.
46 FSC oInput pin for VCO control amplifier, consist of
.. IItracking jump (kick pulse) signal.
15 ]TO IO10utput pin for tracking control signal. II IlPLLloopfilterwith VCOCancl F’DQofdigital I
16 IFD IO]Outpuf pin for focusing control signal.
17 IFD- 1IlConnection pin for comtant of focusing phase I
~DEF OOut ut in for defect detection of disc.
IInput pin for reference clock pulse, input
I I compensation, consist of between FD and FA.
18 IFA+ IlConnaction pin for constant of frxusing phase
IIIcompensation, consist of between FD- and FA-.
19 IFA- 1IConnection pin for constant of focusing phase II4.23MHz of digitalsignal processor.
51 ICL I IInput pin of clock pulse for command from I
I I compensation, consist of between FA and FE.
20] FE IOIOutput pinfor Focusing Error signal. I I micro processor.
w] DAT IInput pinof data for command from micro21 FE-
~
IConnection pin for gain setting resistor of FE
OOutput pin for signal end of input signal of the
processor.
53 CE IInput pin of chip enable for command from
micro processor.
54 DRF oDetect RF signal is output pin for RF level
F
22 AGND
BSP
detection.
5s FSS IFocus Serch Select
56 VCC2 -VCC for servo and digital root.
24
zSPI SPG
sP-
SPD
SLEQ
SLD
SL-
1Input pin for spindle amplifier.
IConnection pin for gain setting resistor, when
spindle 12cm mode.
IConnection pin for constant of spindle phase
compensation with SPD pin.
oOutput pin for spindle controlsignal.
IConnection pinforconstantof sled phase
corrmensation
57 REFI IBus control connection pin for reference voltage.
59 VR oOutput pin for reference voltage.
59 LF2 IConnection pin for taim constant setting of
.I I Idefect detedlon of the disc,
ml PH1 IlCapacitor connection pin for peak-hold of
RF signal,
61 BH1 ICapacitor connection pin for bottom-hold of
RF signal. A
O10utput pin for sled control signal.
IIlnput pin for sled signal from micro processor.
~
IInput pin for tracking jump signal from digital
IInput pin for tracking gain control signal from
di ital si nal rocessor. TGL=H: ain low
QLDD oOutput pin of APC(Auto Power Control) circuit.
63 LDS IInput pin for APC(Auto Power Control) circuit.
64 Vccl -VCC for RF root.
-16-

IC BLOCK DIAGRAM &DESCRIPTION
U0201 LA6541 D
Vcc Vref VIN4 VG4 V08 V07 GND V06 V05 VG3 VIN3 CD RES
Level BTL BTL Level
Sift Driver Driver Sift Regulator
Ilkfl
I I
Vcc Mute VIN1 VG 1Vol V02 GND V03 V04 VG2 VIN2 Reg OUT Reg IN
U0301 LC78622E
TST11 TEST2 TEST4
EFMO VVDD VVSS PDO ISET FR PCK TAI TEST1 TEST3 TEST5 VDD VSS
=+=zm==+I‘AM r----- ‘enerator-
2K -8bit RAM Address
i
Syncrnous Detect
EFM Demodulation Interpolalation Mute
1’ I
General Ports
HFLTESTOFF JP- JP+ RES TGL CONT1 CONT3 CONT5 Ek
CONT2 CONT4
L_.
Cl C2 Error Detect& I’-l==%
Correct Control Flag
A
8
Digital Attenuator
Quadruple Over Sampling
Digital Filter
X’tal Root
Timing Generator
HEFLG16M 4.2M FSX XIN XVDD RVDD
Xvss XOUT RVSS MUTER
$
1bit DAC
L.P.F
RCHO LCHO MUTEL LVDD
LVSS
C2F
DOUT
(NC)
-17-

IC BLOCK DIAGRAM &DESCRIPTION
. .
U0301 LC78622E (Diaital Sianal Processor)
No. Name llo Function
1DEFI IInputof defect detection signal. (Connect to OV)
2TAU IFor PLL, Inputfor test, (Surely connect to OV)
3Pm oFor PLL. Output of phase comparator
3for external VCO.
4Vvss -For PLL. Ground for internal VCO.
5ISET Al For PLL. Connection of resistorfor current
adjustment of PDO output.
6VVDD -For PLL. Power supply for internal VCO.
7FR Al For PLL. For adjustment of VCO frequency range.
8Vss -Ground for digital root. (Surely connect to OV)
9EFMO oOutput of EFM signal for slice level control,
10 EFMIN IInput of EFM signal for slice level control,
11 TEST2 IInput for test. (Surely connect to OV)
12 CLV+ oOutput for disc motor control.
13 CLV- 0Output for disc motor control.
14 vIF oMonitor output for automatic selection of rough servo
/phase control.H:roughservo, “~: phase control
15 HFL IInputof track detectionsignal.
16 TES IInput of tracking error signal.
17 TOFF oOutput of tracking OFF signal.
18 TGL oOutput ofselecfion fortrackinggain. wb :gainup
19 .1P+ r--l C)Ih)tof track inImn control
a) JP- 0Output of track jump control.
21 PCK oOutput of clock monitor for playback EFM data,
When rocked tie phase: 4.321 8MHz
Z? FSEQ oOutput of detection for synchronizing signal.
When accordant to detected synchronizing signal
from EFM signal and synchronizing signal in internal
~
24 CONT1 l/O input/Outputforgenerel.
%CONT2 1/0 Control by serial date command from
I28 ICONT5 II/ol I
I29 IEMPH IO10utput of monitor for de-emphasis. I
Playback during diemphasis disc :“H” level
3) C2F oOutput of C2 flag.
31 DOUT oOutput of Digital OUT, (EIAJ foamed)
3? TEST3 IInput for test. (Surely conned to OV)
33 TEST4 IInput for test. (Surely connect to OV)
34 NC -Not connection. (Open)
U0401 LC6543F (Micro-Processor)
INo. IName IVQI Deacriotion I
1IDRF Il/O IRF signal detect
2VDD !-IGNDface for LC7822
I3ISQOUTI 1/0IInter
I4ICOIN 11/0 Ilnterface for LC7822
or LC78225CQCK 1/0 Interface fc
6WRQ 1/0 Interface for LC7822
7RWC 1/0 Interface for LC7822 I
8A-MUTE 1/0 Audio mute control
9FEED+ 1/0 Sled motor control
10 FEED- 1/0 Sled motor control
11 PIJIN 1/0 P~J-lN switch
H===l
35 MUTEL OL-channel 1-bit DAC. Out ut of mutin for L-channel.
L-channel 1-bit DAC. Power su Ifor L-channel.
37 LCHO OL-channel 1-bit DAC. Ou ut si nal for L-channel.
-L-channel 1-bit DAC. Ground terminal for L-channel.
(Surely connect to OV)
33 RVSS -R-channel 1-bit DAC. Ground terminal for R-channel.
(Surely connect to OV)
40 RCHO oR-channel 1-bit DAC. Outaut sianal for R-channel.
41 RVDD -R-channel 1-bit DAC. Power supply for R-channel.
42 MUTER oR-channel 1-bit DAC. Output of muting for R-channel.
43 XVDD -Power supply terminal for crystal oscillation.
44 XOUT oConnection terminal for crystal oscillation.
45 XIN I(16.9345MHz)
46 Xvss oGround terminal for crystal oscillation.
(Surely connect to OV)
47 SBSY oOutput of Synchronizing signal for sub-cede block.
48 EFLG oTerminal of correction monitor for Cl, C2, single
49] Pw ]O[Outputfor P, Q, R, S, T, Uand Wof sub-code.
50 ISFSY IO10utpuf of Synchronizingsignal for sub-code flame.
I I lwhen the stand-by the sub-code, leading edge.
51 ISBCK ] I IInput terminal of reading clock for sub-cde. I
I52 IFSX IO10utput terminal of synchronizing signal divided from I
crystal oscillation (7.35 kHz).
53 WRQ oOutput of stand-by signal for output the sub-code Q.
54 RWC IInputterminal of controlsignal for readkite.
5s SQOUT oOutput terminal for sub-code Q.
56 COIN IInput terminal for command from micro-processor.
57 mIInputof loading clock for command, or fetching clock
for sub-code from SQOUT.
% m IInput terminal of system reset. When ON the power
supply, ones the “L”.
wTST11 oOutput terminal for test.
Use the Open status(Normal the output is “L”).
III(When the un-control, connect to OV)
64 ITEST1 I I IInput for test. (Surely connect to OV)
No. Name Vo Description
16 Oscl IClock input
17 TEST IVss
18 Vss -GND
19 RESET IReset
mSEG-A 1/0 Lightup Signal for LED (Segment a)
21 SEG-B I/o Light up Signal for LED (Segment b)
22 SEG-C 1/0 Light up Signal for LED (Segment c)
23 SEG-D 1/0 Light up Signal for LED (Segment d)
24 SEG-E 1/0 Lightup Signal for LED (Segment e)
25 SEG-F 1/0 Lightup Signal for LED (Segment f)
-.
mswitch
Mute control
I3) IPROG Il/O lProgram LED I
-18-

IC &TRANSISTOR VOLTAGES
UO101 LA9240M (CD MODE) (v)
PinNo. 12345 6 7 8 9 10 11 12 13 14 15 16
Voltage 2.5 2,5 2.56 2.58 2.54 2.56 2.53 2.58 2.5s 2.53 2.53 2%3 2.53 2,57 0.1 2.78
Pin No. 17 18 19 20 2t 2? 23 w25 26 27 2s B30 31 =
Vdkige 2.57 2.41 2.57 2.57 2.56 0.0 2.51 2.53 2.53 2.57 2.78 2.57 2.7 2.6 2.84 0.0
Pin No. 33 34 %36 37 38 39 m41 Q43 44 46 46 47 a
Voltage 0.0 5.6 0.0 1.3 0,0 0.0 0.0 O.z 2.43 2.46 2.86 2.55 0.0 2.% 2.54 0.0
Pin No. 48 50 51 52 s54 66 %57 58 58 60 M62 63 64
Voltage 0.01 2.38 4,72 0.0 0.0 4.97 0.12 5.05 2.56 2.56 2,73 2.76 2.23 3.75 0.17 5.05
>U0201 LA6541 D(CD MODE) (v)
Pin No. 1234 5 6 7 8 9 10 11 12 13 14 15 ]16
Voltage 8.76 5.05 2.78 2.55 4.36 3.n0.0 0.0 0.0 3.91 4.19 2.58 2.63 5.07 8.15 5.05
Pin No. 17 18 19 m2t 2? a 24 zx27 28 a 30
Voltage 5,01 2,59 2.53 4.1 4.05 0.0 0,0 0.0 3.85 4.21 2.55 2.86 2.55 8.79
U0301 LC78622E (CD MODE) (v)
Pin No. 12 3 4567 8 9 10 11 12 13 14 15 16
Vdi%ge 0.01 0.0 1.54 0.0 1.58 5.LW 0.32 0,1 2.54 2.67 0.0 0.2 0.0 0.0 0.02 1.22
Pin No. 17 18 19 xl 2t z z 24 z%27 Ba 30 a =
Voltage 0.0 5,m 0.0 0.0 2.51 5.05 5.06 0.18 0.17 0.15 0.16 0.2 0.0 0.0 2.55 0.0
Pin No. 33 34 %36 37 3 3 m41 @43 44 45 ~47 48
Voltage 0.0 0,0 0,0 4,5 1.95 0.0 0.0 1.s6 4,5 0.0 0.0 2.(22 2.15 0.0 0.1 0.1
Pin No. m93 51 52 53 54 55 56 57 58 58 60 ~@63 64
Voltage 0.1 2.52 0.04 2.52 1,0 0.0 0.04 0.0 4.74 505 0.0 2.23 2.38 0.0 0.0 0.0
u0401 LA6543F (CD MODE) (v)
Pin No. 12345678910 11 12 13 14 15 I16
Voltage 4,%5 5.LX5 0.04 0.0 4.88 0.85 0.0 0,0 0.0 0,0 4.99 0.01 0.0 4.97 0.23 2.43 I
Pin No. 17 18 19 20 21 z? a 24 25 26 27 28 ~30
Vdtaga 0.0 0.01 5.04 4.88 2.67 2.67 4.86 4.94 4.94 4.95 0.3 2.91 2.92 5.LW
.IC1 001 LA1 826A (RADIO MODE) (v)
Pin No. 12 3 4 5 678910 11 12 13 14 15 16
AM Voltage 1.61 5.17 5.19 1.16 1.16 0.0 1.17 5.17 5,17 0.23 0.0 0.0 0,89 0.89 1.2? 0.33
FM Vo/tage 1,14 4.96 4.96 1.14 1,13 0.0 1.15 4.92 4.&?a 0.22 4.27 4.28 0,87 0.87 1.2 0.28
Pin No. 17 18 19 m2t 2? B24
AM Voltage 0.77 0.0 5.18 5.0 5.17 5,17 0.0 0.0
FM Voltage 0.63 3.77 4.96 4.88 4.79 4.75 0.83 0,0
IC1 003 LA4597 (TAPE PLAY MODE) (v)
Pin No. 1234I5I6I7I8I9I10 I11I12I13
Voltage I13,0 I7.0 I0.0 I7.0 13.0 14.3 I72 0.0 14.0 0.0 I13.9 0.0 I72
Transistors (CD MODE)
Tranaiator No. Q101 Q401 (2402 Q403 Q404 Q4w
Pin Name BCE BCE BCE BCE BCE BCE
Voltage 3.76 ]1.94 I4.49 5.03 I3.2 [5.05 0.0I5.05 ]5.LM 4.68 I3.27 ]5.(M 4.67 I3.41 I5.LM 0.0I5.a3 I0.0
Transistor No. (2501 Q502 Q601 Q1OO1 Qla12 QlC03
Pin Name BICIE BICE BICE BCE BCIE BICIE
Vottage 0,3? [02’ I0.2 O.w I0.2 I0.2 824 I5.(B i8.62 6.12 ]6.67 [6.0 0.62 ]0.0 I0.0 9.36 ]13.8 I8.78
Transistor No. Q1401 Q1551 Q1552 Q1701 Q1702
Pin Name BCIE BCE BCIE BICIE BICIE
Voltage 0.24 [4.78 I0.58 0.65I 0.0I0,0 0.85I 0.0I0,0 0.22I 4.9 I0.1 0.2 I 4.9 0.1
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