Service Manual
FILE NO.
REFERENCE No.
Micro Component System
DC-DA2000 (XE)
PRODUCT CODE No.
129 662 01
This service manual consists of "DC-DA2000U/XE" (Main unit : 129 661 01) and
"SX-DA2000/XE" (Speaker system : 165 074 01).
Contents
Laser beam safety precaution .......................................... 1
Tape adjustments ............................................................ 1
Tuner adjustments ........................................................... 2
CD pick-up maintenance .................................................. 2
Exploded view
(Cabinet & Chassis) ...................................................... 3
Parts list
(Cabinet & Chassis) ...................................................... 4
Exploded view & Parts list (Tape mechanism) ................. 7
IC block diagram & description ........................................ 8
LCD display description ................................................... 13
Schematic diagram
(FRONT) ....................................................................... 14
(CD) ............................................................................... 16
(AMPLIFIER) ................................................................. 20
(TUNER) ....................................................................... 22
Wiring diagram
(FRONT & CD) .............................................................. 18
(AMPLIFIER & TUNER) ................................................ 24
(POWER TRANSFORMER) ......................................... 26
Wiring connection ............................................................ 27
SM5810392
CD
TAPE
- 1 -
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.
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
- 2 -
TUNER ADJUSTMENTS
Antenna
: 75 unbalanced, 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.
· TUNING
· MODE : TUNER
FM : 87.5 - 108MHz
· Speaker impedance : 4 ohm
AM : 522 - 1611kHz, 520 - 1610kHz
Anntena
: IRE Loop(SG), Moduration : 1kHz, 30%
RF Level
: dBuV EMF, Output Level : about 30mV at TP13, TP14, TP15
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
---
5.50±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).
1611kHz(XE)
---
7.10±0.50V Check Only
Connect to VTVM
603kHz
L2151
point TP13(L) or TP14(R) and TP15(E).
1404kHz
CT252
Remark
Remark
Step
Step
Adjusting
Circuit
Adjusting
Circuit
SG
Frequency
Cover
Voltage
2
Adjustment
XF233
3
FM Antenna SG=66dBuV/EMF
IF
Adjustment
Loop Ant
1
1
Tracking
Loop Ant
Cover
Voltage
2
Maximum
98MHz
450KHz
at 999kHz
T2002
Maximum
Adjustment
SG
Frequency
IF(0V)
Adjustment
E
E
E
E
E
E
E
1
12
13
24
13
24
12
1
1
E
CN400
CN445
Q4410
D4960
Q4963
Q4961
Q4960
Q4962
J4122
J4427
J4618
J4619
J4620
J4621
J4425
J4426
J4624
J4622
J4617
J4420
J4415
J4416
J4417
J4412
J4423
J4424
J4119
J4419
J4418
+5.6V
AC_SENSE
GND
LID_SW
MAIN_MUTE
TU_DI TU_CE
VOL_CE VOL_DO TU_DO D_CLK
CD_R
CD_AGND
CD_L
CD_DGND
ST_BY
+9.0V
SURROUND REC_OSC REC_MUTE BEAT_OUT
MOTOR PLUNGER REEL
INITIALIZE
DECK_PACK
G_FWD G_RVES
R4921
C4560
J4623
IC446
C4993
C4994
D4993
J4625
J4428
X2451
C2457
L2151
L2153
CT252
L2151
D2466
L2451
C2451
C2301
XF233
D2103
J2505
D2153
Q2451
J2511
J2510
XF221
XF222
C2321
C2305
C2328
C2327
C2307 C2317
T2002
J2501
C2303
J2601
J2509
J2606
J2605
J2604
J2120
J2603
J2112
C2901
D2451
TDI
TCLK
T-DOUT
TCE
D2151
J2600
D2456
C2116
XF231
+5.6V
L_CH
R_CH
+9.0V
GND
J2500
J2122
J2502
J2118
R2109
VT
J2503
CN202
CN201
S2001
XF211
IC211
J2124
J2123
C2306
J2119
J2121
J2100
L2104
D2102
L2103
C2311
C2313
J2113
J2114
J2504
J2117
J2127
J2126
J2125
J2102
J2103
J2104
J2116
J2107
D2452
C2452
J2111
J2110
J2109
J2108
J2106
J2105
J2602
J2508
J2507
D2101
L2102
J2506
D2453
J2101
Q2201
J2115
C2109
R4403
R4402
R4400
R4401
R4964
R4963
R4942
R4560
R4970
C4997C
4
9
9
7
C4997
IC241
IC231
C2461
R2460
R2459
C2456
C2456
R2453R
2
4
5
3
C2456
R2453
R2452
C2455
C2141
C2141
C2141
C2154
R2131
C2152C
2
1
5
2
R2151R
2
1
5
1
C2304C
2
3
0
4
R2302
R2302
C2115C
2
1
1
5
C2323
C2323
C2152
C2151
R2149
R2458
R2151
C2453
C2454
R2455
C2304
R2304
R2305R
2
3
0
5
R2306R
2
3
0
6
C2319
C2319
R2309
R2309
C2308C
2
3
0
8
C2310C
2
3
1
0
C2902C
2
9
0
2
R2305
R2306
C2320
C2319
C2309
C2316
R2307
R2309
R2308R
2
3
0
8
R2312R
2
3
1
2
R2308
C2308
C2324
C2315
C2310
C2312
R2302
R2454
R2148
C2902
R2801
R2701
R2301R
2
3
0
1
R2301
R2311
R2461
R2462
R2463
R2464
R2100
R2712
R2812
C2314
C2302
C2462
C2600
C2600
C2600
C2322
C2463
C2464
C2318
R2106
R2106
R2106
R2312
C2115
C2323
C2101
C2105
R2101
C2103
C2104
C2107
R2102
R2107
C2110
C2111
R2108
C2112
R2103
C2114
C2113
R2110
R2201
R2204
R2202
R2203
C2203
R2205
R2105
R2303
CT252
IC231
TP25
TP24
TP11
TP12
L2151
L2153
L2103
VT
T2002
XF233
TP15
TP13
TP14
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.
- 3 -
EXPLODED VIEW (CABINET & CHASSIS)
16
Y03
Y05
Y01
Y06
Y11
Y9
Y13
Y14
Y15
Y15
Y16
Y16
Y17
Y18
Y10
Y10
Y12
Y03
Y04
Y03
Y03
Y02
Y07
Y08
Y08
Y07
15
1
2
3
4
5
6
7
10
9
11
71
73
74
72
8
26
27
25
20
18
19
21
22
23
24
12
13
14
15
17
51
53
54
57
56
58
52
55
- 4 -
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 AND
PERFORMANCE 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 0 ohm chip resistors.
Regular type capacitors are less than 50 V and less than 1000 µF type of Ceramic type and Electrical type.
N.S.P :
Not available as service parts.
PACKING & ACCESSORIES
REF.NO.
PART NO.
DESCRIPTION
614 325 8056
CARTON CASE
614 319 7430
CUSHION,REAR
614 319 7447
CUSHION,FRONT
614 325 8094
INSTRUCTION MANUAL
614 325 8421
INSTRUCTION SHEET
645 047 0516
POLY SHEET-0900X0300*NC
645 005 1227
ASSY,ANTENA,LOOP
or
645 046 8322
ASSY,ANTENA,LOOP
614 318 9404
LID,BATTERY,SERVICE
645 057 4696
REMOCON,RB-DA2000
614 325 7875
ASSY,BOX,SPEAKER,SPEAKER(L,R)
CABINET & CHASSIS
REF.NO.
PART NO.
DESCRIPTION
1
614 325 7981
COVER,DECK
2
614 326 3043
DEC,WINDOW,DECK
3
614 320 3520
SPRING,WIRE,DOOR DECK
4
614 319 7096
LID,CASSETTE
5
614 323 2230
PANEL
6
614 325 7967
ASSY,PANEL,FRONT
7
614 319 7072
KNOB,VOLUME
8
614 326 3050
DEC,WINDOW,LCD
9
614 309 7969
ASSY,GEAR,LID,CASSETTE
10
614 303 1277
LATCH,CAM,DECK,DOOR,LOCKING
11
614 323 2162
BUTTON,OPERATION,11 KEYS
12
614 319 6945
BUTTON,RIGHT,4 KEYS
13
614 325 7974
BUTTON,POWER
14
614 325 8025
REFLECTOR,STANDBY,LED
15
614 310 3899
SPACER,MECHA,MTG CD+DA11
16
614 307 2072
COVER,PICK-UP
17
614 319 7119
MOUNTING,CD
18
614 322 2125
ASSY,GEAR,LID CD
19
614 303 0263
LATCH,PUSH,CD DOOR LOCKING
20
614 319 7201
SPRING,WIRE,DOOR CD
21
614 307 8821
PULLEY
22
614 303 0256
LATCH,MAGNET
23
614 319 7102
LID,CD
24
614 325 8230
DEC,WINDOW,CD
25
614 316 1172
STOPPER
26
614 325 7929
ASSY,CABINET,REAR
27
614 325 6014
ASSY,MECHA,DA11T3CN-SASH
FIXING PARTS
REF.NO.
PART NO.
DESCRIPTION
Y01
411 156 2105
SCR S-TPG BIN 2.3X6,
PANEL+PANEL FRONT
Y02
411 021 3503
SCR S-TPG BIN 3X10,
F-PANEL+LATCH,CAM
Y03
411 021 3503
SCR S-TPG BIN 3X10,
F-PANEL+DECK MECHA
Y04
614 129 9136
LUG,LEAD FIX
Y05
411 020 8905
SCR S-TPG BRZ+FLG 3X10,
F-PANEL+ASSY.GEAR,DECK
Y06
411 021 3503
SCR S-TPG BIN 3X10,
SWITCH,PWB+MTG CD
Y07
411 021 1806
SCR S-TPG BIN 2.6X10,
MTG CD+DA11
Y08
411 092 0906
WASHER Z 2.6X10X0.5,
MTG CD+DA11
Y09
411 020 8905
SCR S-TPG BRZ+FLG 3X10,
F-PANEL+ASSY.GEAR,CD
Y10
411 021 4906
SCR S-TPG BIN 3X20,
F-PANEL+MOUNTING,CD
Y11
411 021 3503
SCR S-TPG BIN 3X10,
MAIN PCB+MTG CD
Y12
411 184 0906
SCR S-TPG BIN 2.3X10,
LID CD+DEC WINDOW CD
Y13
412 032 6408
SPECIAL SCREW,REAR+P-TRANS
Y14
411 021 3503
SCR S-TPG BIN 3X10,
REAR+STOPPER
Y15
411 098 7800
SCR S-TPG FLT 3X12,
REAR+MTG(L/R)
Y16
411 021 4906
SCR S-TPG BIN 3X20,
REAR+PANEL,FRONT
Y17
411 021 3503
SCR S-TPG BIN 3X10,
REAR+ANT TERMINAL,
REAR+AUDIO TERMINAL
Y18
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
614 326 3760
FLEXIBLE FLAT CABLE,
FRONT-AMP
or
614 327 0874
FLEXIBLE FLAT CABLE,
FRONT-AMP
53
614 326 2794
FLEXIBLE FLAT CABLE,
CD-CD MECHA
or
614 327 0836
FLEXIBLE FLAT CABLE,
CD-CD MECHA
54
614 316 8041
ASSY,WIRE,CD-CD MECHA
55
614 274 2013
CORD,ID CONNECTOR,FM ANT
56
423 016 7908
FUSE 250V 2.5A
57
645 050 7373
TRANS,POWER
58
645 016 9939
CORD,POWER-1.74MK