Sanyo DC-DA280 User manual

Service Manual
FILE NO.
REFERENCE No.
Micro Component System DC-DA280 (AU)
(KR)
PRODUCT CODE No.
129 622 05 (AU)
129 622 07 (KR)
AU: This service manual consists of "DC-DA280U/AU" (Main unit : 129 621 05) and
"SX-DA280/UK" (Speaker system : 165 046 00).
KR: This service manual consists of "DC-DA280U/KR" (Main unit : 129 621 07) and
"SX-DA280/KR" (Speaker system : 165 046 05).
Contents
Specifications ................................................................... 1
System connections ......................................................... 1
What to do if ..................................................................... 1
Laser beam safety precaution .......................................... 2
CD pick-up maintenance .................................................. 2
CD player adjustments ..................................................... 2
Tape adjustments ............................................................ 3
Tuner adjustments ........................................................... 4
Exploded view
(Cabinet & Chassis) ...................................................... 5
(Tape mechanism) ........................................................ 9
Parts list
(Cabinet & Chassis) ...................................................... 6
(Tape mechanism) ........................................................ 9
IC block diagram & description ........................................ 9
LCD display description ................................................... 14
Wiring connection ............................................................ 15
Schematic diagram
(FRONT) ....................................................................... 16
(CD)............................................................................... 18
(AMPLIFIER for AU)...................................................... 22
(AMPLIFIER for KR)...................................................... 24
(TUNER for AU) ............................................................ 26
(TUNER for KR) ............................................................ 28
Wiring diagram
(FRONT & CD) .............................................................. 20
(AMPLIFIER & TUNER for AU) ..................................... 30
(AMPLIFIER & TUNER for KR) ..................................... 32
(POWER TRANSFORMER) ......................................... 34
SM5810288
MEMORY
REPEAT/FMMODE
SOUND
PRESET
PRESET
TUNER
/BAND TUNING
VOLUME
REMOTE CONTROLLER RB-DA280AR
LINE

- 1 -
General
Output power ......................... 4W x 2
(at 4 ohms, 10% distortion)
Outputs .................................. SPEAKERS : 4 ohms
PHONES : 8 - 32 ohms
Power requirements............... AC 240V, 50Hz(AU)
AC 220V, 60Hz(KR)
Power consumption ............... 21 W
Dimensions (W x H x D) ........ Approx. 150 x 230 x 205 mm
Weight.................................... Approx. 2.3 kg
Speaker system
Type ....................................... Full range bass reflex
Unit used................................ 10 cm cone type
Maximum
power-handling capacity ..... 8 W (peak)
Nominal impedance ............... 4 ohms
Dimensions (W x H x D) ........ Approx. 145 x 230 x 170 mm
Weight.................................... Approx. 1.2 kg (per speaker)
Specifications subject to change without notice.
SPECIFICATIONS
Tuner
Reception frequency
FM : 87.5 - 108.0 MHz
AM: 522 - 1710kHz (9 kHz step)
520 - 1710kHz (10 kHz step)
CD player
Channels................................ 2-channel stereo
Sampling frequency ............... 44.1 kHz
Pick-up ................................... Optical 3-beam
semiconductor laser
Laser output ........................... 0.6mW(Continuous wave max.)
Wave length ........................... 790 nm
Wow and Flutter ..................... Below measurable limits
Cassette deck
Track system ......................... 4-track, 2-channel stereo
Frequency response .............. 80 Hz - 15 kHz
Signal to noise ratio ............... 40 dB
Wow and Flutter ..................... 0.15% (WRMS)
Fast forward / Rewind time .... Approx. 110 sec. (C-60)
SYSTEM CONNECTIONS
FM aerial
AM loop aerial
Video/ Auxiliary equipment
L ch speaker
R ch speaker
To an AC outlet
WHAT TO DO IF
If the operation of the unit or display is not normal,
1. Disconect the mains lead.
2. Press the button on the unit for at least 30 seconds.
3. Connect the mains lead.
4. Operate the unit.

- 2 -
LASER BEAM SAFETY PRECAUTION
•Pick-up that emits a laser beam is used in this CD player section.
CAUTION :
USE OF CONTROLS OR ADJUSTMENTS
OR PERFORMANCE OF PROCEDURES
OTHER THAN THOSE SPECIFIED HEREIN
MAY RESULT IN HAZARDOUS RADIATION
EXPOSURE.
LASER OUTPUT.......... 0.6 mW Max. (CW)
WAVELENGTH ............. 790 nm
CAUTION – INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL – USYNLIG LASER STRÅLING VED ÅBNING, NÅR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅ UDS ÆTTELSE
FOR STRÅLING.
VARNING – OSYNLIG LASER STRÅLNING NÄR DENNA DEL ÄR ÖPPNAD
OCH SPÄRR ÄR URKOPPLAD. STRÅLEN ÄR FARLIG.
VORSICHT – UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN
DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN.
VARO – AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
CD PICK-UP MAINTENANCE
About pick-up (Optical lens) Cleaning
Clean a lens with swab of the cotton which moistened it with alcohol, cleaning paper or cleaning disc appointed.
Specified cleaning disc : LC-1 (Part code : 645 026 1961 ..... manufactured by SANYO.)
Show a clean procedure in the following in reference by swab of cotton.
1. Cotton swab is wrapped with Cleaning paper.
2. Add the isopropyl alcohol.
3. Gently move the tip of cotton swab just like a draw a whirlpool from inside to outside on the surface of lens.
CD PLAYER ADJUSTMENTS
1. ADJUSTMENTS
(1) Confirm the tracking balance
1. Turn on the POWER switch.
2. Connect an Oscilloscope to TP2 (TE) and TP4 (VC).
3. Set the test disc.
4. Press "PLAY" button to turn into the "PLAY" mode.
5. Keep holding "SKIP" button down so as to be "SERCH"
mode, then confirm that the oscilloscope waveform is
symmetrical on the top and bottom in relation to 0V (VC).
200mV/div.
5ms/div.
(AU Only)

- 3 -
OPENING EXPANDED
b
a
(2) Checking the "eye" pattern
1. Switch "ON" the POWER.
2. Connect an oscilloscope to TP1 (RF) and TP4 (VC).
3. Load the test disc.
4. Press the PLAY button.
5. Check to be sure that the "eye" pattern is at the center of
waveform and that the diamond shape is clearly defined.
6. Press the STOP button.
7. Turn off the POWER switch.
CD PLAYER ADJUSTMENTS
OSCILLOSCOPE
+
TP1
(RF)
TP4
(VC)
-
TAPE ADJUSTMENTS
•Be sure to clean the heads before attempting to make any adjustment.
•Be sure both channels (1 and 2) are the same level.
(Using a dual-channel oscilloscope)
•Be sure both channel's waveform are same for the phase matching.
• After completion of the adjustment, use the threadlock (TB-1401B) to
secure the azimuth adjustment screws.
1. Remove the cover deck as Fig.1.
2. Load a test tape (VTT-738 etc. : 10kHz) in the Deck.
3. Press the PLAY button. (Normal playback)
4. Use a + tip screwdriver to turn the screw for normal azimuth
adjustment so that the left and right outputs are maximized at
the same phase during normal playback. See Fig.2.
5. Adjust so that the waveforms for the left and right channels are in alignment.
1. Azimuth Adjustment
3. Torque Measurement
2. Tape Speed Adjustment
NORMAL
• Connect the Frequency Counter to TAPE OUT.
1. Insert the test tape (MTT-111N, etc.; 3,000Hz) into the DECK.
2. Press the PLAY button. .
3. Adjust a hole on the motor bottom so that a frequency counter reading of 3,000 }5Hz is obtained.See Fig.3.
4. Press the STOP button, and eject the test tape.
Fig.1
Fig.2
hole for adjustment
MOTOR Fig.3
Item Take-up Torque Back tention
PLAY/REV. 30~65 grcm 2~6 grcm
F.FWD/REW 55~140 grcm -
> 50 grcm
-
Pully tention
Test Cassette PLAY:TW2111A(FWD) PLAY:TW2112A(FWD) Driving power cassette:
TW-2412(PLAY)

- 4 -
TUNER ADJUSTMENTS
Antenna : 75Ωunbalanced, Modulation : 1 KHz
Dev. : 22.5kHz
RF Level : dBuV EMF, Output Level : about 30mV at TP13, TP14, TP15
• Use a plastic screw driver for adjustments.
• MODE : TUNER
• Speaker impedance : 4 ohm
• TUNING
FM : 87.5 - 108MHz
AM : 522 - 1710kHz, 520 - 1710kHz
Anntena : IRE Loop(SG), Modulation : 1kHz, 30%
RF Level : dBuV EMF, Output Level : about 30mV at TP13, TP14, TP15
E
112
13
24
13 24
12 1
1
J4413 J4414
J4415
X2451 C2457
L2151
L2153
CT252
D2466
L2451
C2451
C2301
XF233
D2103
J2505
D2153
Q2451
J2511
J2510
XF221
XF222
D2301
C2321
C2305
C2328
C2327
C2307 C2317
T2002
J2501
C2303
J2601
J2509
J2606
J2605
J2604
J2120
J2603
J2112
C2901 D2151
J2600
D2456
C2116
XF231
L_CH R_CHGND
J2500
J2122
J2502
IC231
IC241
J2118
R2109
VT
J2503
CN202 CN201
S2001
XF211
IC211
J2124
J2123
C2306
J2119
J2121
J2100
L2104
D2102
L2103
C2311
C2313
J2113
J2114
J2504
J2117
J2102 J2103 J2104
J2116
J2107
D2452
C2452
J2111
J2110
J2109
J2108
J2106
J2105
J2602
J2508
J2507
D2101
L2102
J2506
D2453
J2101
Q2201
J2115
C2109
IC231
C2461
R2460
R2459
C2456
R2453
R2452
C2455
C2141
C2154
R2131
C2152
C2151
R2149
R2458
R2151
C2453
C2454
R2455
C2304
R2304
R2305
R2306
C2320
C2319
C2309
C2316 R2307
R2309
R2308 C2308
C2324 C2315
C2310
C2312
R2302
R2454
R2148
C2902
R2801
R2701
R2301 R2311
R2100
R2712
R2812
C2314
C2302
C2462
C2600
C2322
C2463
C2464
C2318
R2106
R2312
C2115
C2323
C2101
C2105
C2106
R2101
C2103
C2104
C2107R2102R2107C2110
C2111
R2108
C2112
R2103
C2114
C2113
R2110
R2201
R2204
R2202R2203
C2203
R2205
R2303
C2102
R2105
TP14 TP15
TP13
TP24
TP11
TP25 TP12 CT252
L2151IC231
L2153
L2103
T2002
XF233
1. FM
Connection
Input Output
Alignment voltage IC231 Alignment voltage IC231
3-22pin(TP24,25) is 0.0±0.05V 3-22pin is 0.0±0.05V
L2103 Connect Digital DC voltmeter to 87.5MHz --- 1.00±0.05V
--- TP11(H), TP12(E). 108.0MHz --- 5.30±0.50V Check Only
2. AM
Connection
Input Output
Connect to VTVM
point TP13(L) or TP14(R) and TP15(E).
--- Connect Digital DC voltmeter to 522kHz L2153 1.00±0.05V
--- TP11(H )and TP12(E). 1710kHz --- 7.10±0.50V Check Only
Connect to VTVM 603kHz L2151
point TP13(L) or TP14(R) and TP15(E). 1404kHz CT252
IF(0V)
Adjustment XF233
Maximum
98MHz
Cover
Voltage
450KHz
at 999kHz T2002 MaximumLoop Ant
3
FM Antenna SG=66dBuV/EMF
IF
Adjustment
Loop Ant
1
2
1
Tracking
2Cover
Voltage
Remark
Remark
Step
Step
Adjusting
Circuit
Adjusting
Circuit
SG
Frequency Adjustment
Adjustment
SG
Frequency

- 5 -
EXPLODED VIEW (CABINET & CHASSIS)
12
24
Y02
Y04
Y05
Y05 Y08
Y11
Y12
Y14
Y14
Y13
Y13
Y15
Y16
Y09
Y09
Y10
Y02
Y03
Y02
Y02
Y01
Y07
Y06
11
1
2
3
4
5
6
7
8
9
71
73
74
72
23
22
16
14
17 15
18
19
20
21
10
11
13
51
54
56
55
57(AU)
57
Y07
Y06
52
53
(KR)
58

- 6 -
PARTS LIST
PRODUCT SAFETY NOTICE
EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH
THE IEC SYMBOL !
!! IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH
SAFETY CAN BE OF SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED BY !
!! , 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 1/4 W Carbon type and Chip type resistors.
Regular type capacitors are less than 50 V and less than 1000 µF type of Ceramic type, Electrical type and
Chip type.
PACKING & ACCESSORIES
REF.NO. PART NO. DESCRIPTION
614 321 4083 CARTON CASE(AU)
614 321 4106 CARTON CASE(KR)
614 319 7430 CUSHION,REAR
614 319 7447 CUSHION,FRONT
614 321 4182 INSTRUCTION MANUAL(AU)
614 321 4205 INSTRUCTION MANUAL(KR)
645 047 0509 POLY SHEET
645 037 8102 POLY BAG,AC CODE
645 005 1227 ASSY,ANTENA,LOOP
or 645 046 8322 ASSY,ANTENA,LOOP
645 053 2542 REMOCON RB-DA280AR
614 318 9404 LID,BATTERY,SERVICE
614 319 6662 ASSY,BOX,SPEAKER(AU)
614 324 1768 ASSY,BOX,SPEAKER(KR)
CABINET & CHASSIS
REF.NO. PART NO. DESCRIPTION
1614 319 6983 COVER,DECK
2614 319 7003 DEC,WINDOW,DECK
3614 320 3520 SPRING,WIRE,DOOR DECK
4614 319 7096 LID,CASSETTE
5614 323 2148 ASSY,PANEL,FRONT
6614 319 7072 KNOB,VOLUME
7614 303 1277 LATCH,CAM,DECK DOOR,LOCKING
8614 309 7969 ASSY,GEAR,LID,CASSETTE
9614 322 7717 BUTTON,OPERATION,11 KEYS
10 614 319 6945 BUTTON,RIGHT,4 KEYS
11 614 310 3899 SPACER,MECHA,MTG CD+DA11
12 614 307 2072 COVER,PICK-UP
13 614 319 7119 MOUNTING,CD
14 614 322 2125 ASSY,GEAR,LID,CD
15 614 303 0263 LATCH,PUSH,CD DOOR LOCKING
16 614 319 7201 SPRING,WIRE,DOOR CD
17 614 319 6938 BUTTON,POWER
18 614 307 8821 PULLEY
19 614 303 0256 LATCH,MAGNET
20 614 319 7102 LID,CD
21 614 319 7058 DEC,WINDOW,CD
22 614 316 1172 STOPPER
23 614 321 3925 ASSY,CABINET,REAR
24 614 307 9804 ASSY,MECHA,CDDA11N-SASH
FIXING PARTS
REF.NO. PART NO. DESCRIPTION
Y01 411 021 3503 SCR S-TPG BIN 3X10,
F-PANEL+LATCH,CAM
Y02 411 021 3503 SCR S-TPG BIN 3X10,
F-PANEL+DECK MECHA
Y03 614 129 9136 LUG,LEAD FIX
Y04 411 020 8905 SCR S-TPG BRZ+FLG 3X10,
F-PANEL+ASSY.GEAR,DECK
Y05 411 021 3503 SCR S-TPG BIN 3X10,
SWITCH,PWB+MTG CD
Y06 411 021 1806 SCR S-TPG BIN 2.6X10,
MTG CD+DA11
Y07 411 092 0906 WASHER Z 2.6X10X0.5,
MTG CD+DA11
Y08 411 020 8905 SCR S-TPG BRZ+FLG 3X10,
F-PANEL+ASSY.GEAR,CD
Y09 411 021 4906 SCR S-TPG BIN 3X20,
F-PANEL+MOUNTING,CD
Y10 411 184 0906 SCR S-TPG BIN 2.3X10,
LID CD+DEC WINDOW CD
Y11 412 032 6408 SPECIAL SCREW,REAR+P-TRANS
Y12 411 021 3503 SCR S-TPG BIN 3X10,
REAR+STOPPER
Y13 411 098 7800 SCR S-TPG FLT 3X12,
REAR+MTG(L/R)
Y14 411 021 4906 SCR S-TPG BIN 3X20,
REAR+PANEL,FRONT
Y15 411 021 3503 SCR S-TPG BIN 3X10,
REAR+ANT TERMINAL
REAR+AUDIO TERMINAL
Y16 411 021 3503 SCR S-TPG BIN 3X10,
REAR+MTG CD
ELECTRICAL PARTS
REF.NO. PART NO. DESCRIPTION
51 614 322 2279 ASSY,WIRE,AMP-TAPE MECHA
52 614 322 2439 FLEXIBLE FLAT CABLE,
FRONT-AMP
53 614 313 7023 FLEXIBLE FLAT CABLE,
CD-CD MECHA
or 614 310 5459 FLEXIBLE FLAT CABLE,
CD-CD MECHA
54 614 316 8041 ASSY,WIRE,CD-CD MECHA
55 423 016 7908 FUSE 250V 2.5A
56 645 051 8744 TRANS,POWER(AU)
56 645 051 8720 TRANS,POWER(KR)
57 645 032 1887 CORD,POWER-2.0MK(AU)
57 645 047 8055 CORD,POWER-1.8MK(KR)
or 645 039 2528 CORD,POWER-1.75MK(KR)
58 614 322 2255 ASSY,WIRE,R/P HEAD-AMP
423 016 9407 FUSE 250V 0.25A(KR)

- 7 -
PARTS LIST
FRONT P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
71 614 324 1140 ASSY,PWB,FRONT(Only Initial)
AC601 614 320 3469 COVER,LED
AH601 614 320 3483 HOLDER,LCD
AS601 614 314 9286 DEC,SHEET,LCD
CN601 645 012 5324 SOCKET,FPC 28P
D6010 407 012 4406 DIODE 1SS133
D6110 407 012 4406 DIODE 1SS133
D6111 407 012 4406 DIODE 1SS133
D6112 407 225 7300 LED LT03B3-43-URE1
D6113 407 012 4406 DIODE 1SS133
IC601 410 432 5700 IC LC867232A-5Z21
L6010 645 001 5441 INDUCTOR,2.2U K
LCD60 645 050 7397 LCD
Q6107 405 141 3307 TR KTC3198-GR
or 405 141 3208 TR KTC3198-Y
or 405 019 2708 TR 2SC536-F-NP
or 405 019 3804 TR 2SC536-G-NP
Q6108 405 143 8706 TR KTC3199-GR
or 405 011 8500 TR 2SC1740S-R
or 405 011 8609 TR 2SC1740S-S
or 405 017 9600 TR 2SC3330-T
or 405 017 9709 TR 2SC3330-U
S6001 645 054 1230 SWITCH,ROTARY(ENCODER)
S6110 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6111 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6112 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6113 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6114 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6115 645 006 5958 SWITCH,PUSH 1P-1T
or 614 240 1002 SWITCH,TACT
or 614 220 5471 SWITCH,TACT
S6116 645 006 5958 SWITCH,PUSH 1P-1T
or 614 240 1002 SWITCH,TACT
or 614 220 5471 SWITCH,TACT
S6117 645 006 5958 SWITCH,PUSH 1P-1T
or 614 240 1002 SWITCH,TACT
or 614 220 5471 SWITCH,TACT
S6210 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
or 614 220 5471 SWITCH,TACT
S6211 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6212 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6213 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6214 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6215 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
S6216 614 220 5471 SWITCH,TACT
or 614 240 1002 SWITCH,TACT
or 645 006 5958 SWITCH,PUSH 1P-1T
SE601 407 217 1101 PHOTO DIODE SPS-442-1G
X6102 645 018 6103 OSC,CERAMIC 6.000MHZ
CD P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
72 614 320 0444 ASSY,PWB,CD(Only Initial)
CN111 645 026 2463 SOCKET,FFC 15P
or 645 040 0513 SOCKET,FPC 15P
CN113 645 005 8127 PLUG,6P,BASEMECHA
or 614 310 2472 PLUG,6P,BASEMECHA
D1402 407 099 5204 ZENER DIODE MTZJ5.1B
D1403 407 004 9709 DIODE DSK10C
D1404 407 012 4406 DIODE 1SS133
D1410 407 098 3300 DIODE RL153-BF-S2
D1482 407 012 4406 DIODE 1SS133
IC101 409 396 8100 IC LA9241ML
IC102 409 435 2106 IC LC78622NE
IC103 409 486 8706 IC MM1469XH
L1451 645 001 4550 INDUCTOR,10U K
LUG01 614 129 9082 LUG
PR140 645 014 2499 PROTECTOR,0.4A 125V
Q1301 405 008 7103 TR 2SB808-G-SPA
or 405 151 4509 TR KTA1270-Y
or 405 151 4608 TR KTA1270-O
or 405 008 6809 TR 2SB808-F-SPA
Q1401 405 009 5306 TR 2SB927-T
or 405 009 5207 TR 2SB927-S
or 405 141 3604 TR KTA1273-Y
X1451 614 231 2667 RESONATOR
AMPLIFIER & TUNER P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
73 614 321 5769 ASSY,PWB,AMP-TU(AU)(Only Initial)
73 614 321 5790 ASSY,PWB,AMP-TU(KR)(Only Initial)
C2457 403 259 0508 NP-ELECT 1U M 50V
C4601 403 057 3503 POLYESTER 0.1U K 50V
C4605 403 061 3605 POLYESTER 0.039U J 50V
C4606 403 061 7702 POLYESTER 4700P J 50V
C4607 403 059 3204 POLYESTER 2200P J 50V
C4608 403 060 2807 POLYESTER 0.027U K 50V
C4734 403 058 4608 POLYESTER 0.15U J 50V
C4834 403 058 4608 POLYESTER 0.15U J 50V
C4913 403 329 5907 ELECT 3300U M 25V
CN201 614 221 8273 TERMINAL
CN202 645 038 7715 TERMINAL
or 645 025 4703 TERMINAL,ANTENNA
CN400 645 012 5324 SOCKET,FPC 28P
CN401 645 006 1875 PLUG,2P,SPEAKER
CN402 645 006 1875 PLUG,2P,SPEAKER
CN440 614 310 2472 PLUG,6P
or 645 005 8127 PLUG,6P
CN441 614 310 2731 PLUG,2P,POWER
or 645 004 2881 PLUG,2P,POWER
CN442 614 276 6835 SOCKET,JACK
CN443 645 011 6384 JACK,PHONE D3.6,HEAD PHONE
CN445 614 310 2519 PLUG,10P
or 645 005 8158 PLUG,10P
CT252 645 032 5663 TRIMMER,7PF
D2101 407 157 8109 VARACTOR DI SVC211-B
D2102 407 157 8109 VARACTOR DI SVC211-B
D2103 407 012 4406 DIODE 1SS133
D2151 407 012 4406 DIODE 1SS133
D2153 407 105 1602 VARACTOR DI SVC342M-V
or 407 105 1305 VARACTOR DI SVC342L-V
D2301 407 063 9108 ZENER DIODE MTZJ6.8B
D2451 407 012 4406 DIODE 1SS133
D2452 407 153 7502 ZENER DIODE GZS3.0B
D2453 407 012 4406 DIODE 1SS133
D2456 407 012 4406 DIODE 1SS133
D2466 407 012 4406 DIODE 1SS133
D4951 407 099 6003 ZENER DIODE MTZJ9.1B
D4953 407 012 4406 DIODE 1SS133
D4954 407 012 4406 DIODE 1SS133
D4960 407 012 4406 DIODE 1SS133

- 8 -
PARTS LIST
REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION
D4961 407 012 4406 DIODE 1SS133
D4963 407 012 4406 DIODE 1SS133
D4964 407 012 4406 DIODE 1SS133
HS401 614 319 7065 HEAT SINK,HEATSINK
IC211 409 016 0200 IC LA1186N-AUDIO
IC231 409 474 3201 IC LA1844ML
IC241 409 439 4502 IC LC72121M-D
IC440 409 451 7406 IC AN7348K
IC441 409 474 6103 IC LC75342M
IC442 409 295 7402 IC TA8229K
IC443 409 189 3404 IC BA7755A
L2102 645 040 2753 INDUCTOR,AIR —
L2103 645 040 2746 COIL,AIR —
L2104 645 002 1534 INDUCTOR,8.2U K
L2151 645 037 2377 TRANS,ANT,796KHZ
L2153 645 040 2739 TRANS,OSC,796KHZ
L2451 645 001 4581 INDUCTOR,100U K
L4600 645 006 1523 INDUCTOR,470U J
L4601 645 006 1523 INDUCTOR,470U J
L4602 645 037 2858 CORE,PIPE
L4603 645 006 1523 INDUCTOR,470U J
L4604 645 037 2858 CORE,PIPE
L4781 645 002 1459 INDUCTOR,22U K
L4782 645 002 1459 INDUCTOR,22U K
L4881 645 002 1459 INDUCTOR,22U K
L4882 645 002 1459 INDUCTOR,22U K
L4981 645 002 1459 INDUCTOR,22U K
L4982 645 002 1459 INDUCTOR,22U K
PR495 645 042 2621 PROTECTOR,1.5A 125V
PR496 645 042 2621 PROTECTOR,1.5A 125V
Q2201 405 151 4301 TR KTC3195-Y
or 405 151 4806 TR KTC3195-O
Q2451 405 036 3702 TR 2SA1564
or 405 151 5209 TR KRA107M
or 405 000 0904 TR DTA114YS
or 405 078 2404 TR BN1A4P
Q4410 405 141 3406 TR KTA1266-GR
or 405 141 3505 TR KTA1266-Y
or 405 004 4502 TR 2SA608-F-NP
or 405 004 5004 TR 2SA608-G-NP
Q4600 405 155 0002 TR MPSA56
Q4601 405 000 3806 TR DTC114YS
or 405 143 0007 TR KRC107M
Q4602 405 141 3307 TR KTC3198-GR
or 405 141 3208 TR KTC3198-Y
or 405 019 2708 TR 2SC536-F-NP
or 405 019 3804 TR 2SC536-G-NP
Q4603 405 141 3307 TR KTC3198-GR
or 405 141 3208 TR KTC3198-Y
or 405 019 2708 TR 2SC536-F-NP
or 405 019 3804 TR 2SC536-G-NP
Q4700 405 000 3806 TR DTC114YS
or 405 143 0007 TR KRC107M
Q4701 405 000 3806 TR DTC114YS
or 405 143 0007 TR KRC107M
Q4751 405 151 4400 TR KTD1303
or 405 021 0204 TR 2SD1012-F-SPA
or 405 021 0600 TR 2SD1012-G-SPA
or 405 033 6706 TR 2SD1468S-R
or 405 033 6805 TR 2SD1468S-S
Q4800 405 143 0007 TR KRC107M
or 405 000 3806 TR DTC114YS
Q4801 405 000 3806 TR DTC114YS
or 405 143 0007 TR KRC107M
Q4851 405 151 4400 TR KTD1303
or 405 021 0204 TR 2SD1012-F-SPA
or 405 021 0600 TR 2SD1012-G-SPA
or 405 033 6706 TR 2SD1468S-R
or 405 033 6805 TR 2SD1468S-S
Q4920 405 141 3307 TR KTC3198-GR
or 405 141 3208 TR KTC3198-Y
or 405 019 2708 TR 2SC536-F-NP
or 405 019 3804 TR 2SC536-G-NP
POWER TRANSFORMER P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
74 614 320 0451 ASSY,PWB,PT(AU)(Only Initial)
74 614 321 5806 ASSY,PWB,PT(KR)(Only Initial)
CN420 614 020 1215 SOCKET,2P
CN421 614 017 8203 TERMINAL BOARD
CN422 614 017 8203 TERMINAL BOARD
CN423 614 322 2262 ASSY,WIRE,PT-AMP WIRE
D4280 407 098 3300 DIODE RL153-BF-S2
D4281 407 098 3300 DIODE RL153-BF-S2
D4282 407 098 3300 DIODE RL153-BF-S2
D4283 407 098 3300 DIODE RL153-BF-S2
FCL41 645 006 4760 HOLDER,FUSE
or 645 031 7903 HOLDER,FUSE
FCL42 645 006 4760 HOLDER,FUSE
or 645 031 7903 HOLDER,FUSE
FCL43 645 006 4760 HOLDER,FUSE(KR)
or 645 031 7903 HOLDER,FUSE(KR)
FCL44 645 006 4760 HOLDER,FUSE(KR)
or 645 031 7903 HOLDER,FUSE(KR)
L4291 645 017 8061 INDUCTOR,181M
or 645 038 6053 INDUCTOR,181U
or 645 041 3087 INDUCTOR,180U
Q4930 405 033 6805 TR 2SD1468S-S
or 405 033 6706 TR 2SD1468S-R
or 405 021 0600 TR 2SD1012-G-SPA
or 405 151 4400 TR KTD1303
or 405 021 0204 TR 2SD1012-F-SPA
Q4931 405 000 0508 TR DTA114ES
or 405 110 5400 TR KRA102M-A
Q4951 405 138 6403 TR KTD2058Y
or 405 095 1602 TR 2SD2061-E
or 405 095 1701 TR 2SD2061-F
Q4960 405 155 0002 TR MPSA56
Q4961 405 155 0002 TR MPSA56
Q4962 405 000 3806 TR DTC114YS
or 405 143 0007 TR KRC107M
Q4963 405 000 3806 TR DTC114YS
or 405 143 0007 TR KRC107M
R4940 402 081 0205 FUSIBLE RES 27 JA 1/4W
S2001 645 023 5795 SWITCH,LEVER
S4951 645 052 2772 SWITCH,PUSH 2P-2TX2,
POWER SW
SA401 411 021 6405 SCR S-TPG BIN 3X8
SA402 411 021 6405 SCR S-TPG BIN 3X8
T2002 645 046 2023 FILTER,450KHZ
X2451 645 023 4965 OSC,CRYSTAL 7.2MHZ
or 645 053 4263 OSC,CRYSTAL 7.2MHZ
XF211 645 026 2975 FILTER,BP 108MHZ
or 614 252 1045 FILTER,LC
XF221 645 054 1223 CERAMIC FILTER 10.70MHZ
or 645 010 7665 CERAMIC FILTER 10.70MHZ
or 645 010 0079 CERAMIC FILTER 10.70MHZ
or 614 240 2917 FILTER,CERAM
XF222 645 054 1223 CERAMIC FILTER 10.70MHZ
or 645 010 7665 CERAMIC FILTER 10.70MHZ
or 645 010 0079 CERAMIC FILTER 10.70MHZ
or 614 240 2917 FILTER,CERAM
XF231 645 041 9324 CERAMIC FILTER 450KHZ
XF233 645 040 9981 TRANS,IF 10.7MHZ
or 645 039 9923 TRANS,IF 10.7MHZ

- 9 -
IC BLOCK DIAGRAM & DESCRIPTION
IC101 LA9241ML (Servo Signal Processor)
28 27 26 25 24 23 22 21 20 19 18 17 16 15
1234567 891011121314
Vcc
Vcc
DRIVER MUTE
D.BUFD.BUFD.BUFD.BUF
D.BUFD.BUFD.BUFD.BUF
Level shift
Level shift
Level shift
Level shift
T.S .D
IC103 MM1469XH (CD Driver)
IC211 LA1186N-AUDIO (FM Front End)
FSS
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
48
47
46
45
44
43
41
40
39
38
37
36
35
34
33
42
32313029282726252423222120191817
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Vcc1 LDS LDD BH1 PH1 LF2 VR REF1 Vcc2
DRF CE DAT CL CLK DEF
NC
TBC
FSC
DGN
D
SLI
SLC
RFS-
RFS
M
CV+
CV-
SLOF
HFL
TES
TOFF
TGL
JP+
JP-SL+SL-SLDSLEQSPDSP-SPGSP
NC AGND FE-FE FA-FAFD-
FD
TO
JP
TD
TD-
TA
TH
SCI
TESI
TE
TE-
TB
F
E
FIN1
FIN2
APC
RF DET
REF
VCA
I/V
BAL VCA
INTER FACE
É -com
SLC
RF Amp
TE
T.SERVO & T.LOGICK
F.SERVO & F.LOGICK
SPINDLE SERVO
SLED SERVO
*
**
*
*
TM01
TM02
TM03
TM04
TM05
TM06
*
*
EXPLODED VIEW & PARTS LIST(TAPE MECHANISM)
N.S.P : Not supplied as service parts.
*
TAPE MECHANISM
REF.NO. PART NO. DESCRIPTION
614 315 4839 ASSY,MECHA,TM-DA370TN-SH
TM01 645 045 1799 R/P HEAD KC-9142EA-0321
TM02 645 010 9447 PINCH ROLLER(F) ASSY
TM03 645 045 1959 RF BELT
TM04 645 045 1997 MAIN BELT
TM05 645 045 2048 DETECT SWITCH MXS01190
TM06 645 045 1751 ASSY,MOTOR