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Service Manual
FILE NO.
Micro Component System
DC-DA1000 (UK)
PRODUCT CODE No.
129 648 00
REFERENCE No.
SM5810387
SP: This service manual consists of "DC-DA1000U/UK" (Main unit : 129 647 00) and
"SX-DA1000/UK" (Speaker system : 165 064 00).
Contents
Laser beam safety precaution .......................................... 1
CD pick-up maintenance .................................................. 1
Tape adjustments ............................................................ 1
Tuner adjustments ........................................................... 2
Exploded view
(Cabinet & Chassis) ...................................................... 3
Parts list
(Cabinet & Chassis) ...................................................... 4
Exploded view & Parts list (Tape mechanism) .............. 7
(CD mechanism) ................. 7
IC block diagram & description ........................................ 8
LCD display description ................................................... 13
CD
Schematic diagram
(FRONT) ....................................................................... 14
(CD) ............................................................................... 16
(TUNER) ....................................................................... 20
(AMPLIFIER ) ................................................................ 24
Wiring diagram
(FRONT & CD) .............................................................. 18
(TUNER) ....................................................................... 22
(AMPLIFIER) ................................................................. 26
(POWER TRANSFORMER & LED) .............................. 28
Wiring connection ............................................................ 29


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- 1 -
LASER BEAM SAFETY PRECAUTION
· Pick-up that emits a laser beam is used in this CD player section.
TAPE ADJUSTMENTS
R / P HEAD
RED
WHITE
YELLOW
EARTH
b. Adjusting head azimuth
1.
Load a test tape (VTT-738, etc. :10kHz) for
azimuth adjustment.
2.
Press the PLAY button.
3.
Use a cross-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.
4.
Press the STOP button.
1
2
3
4
4
MOTOR SPEED
ADJUSTMENT
c.
Adjusting motor speed
1. Insert the test tape (MTT-111 or etc. 3,000 Hz).
2. Press the PLAY button.
3. Use a flat-tip screwdriver to turn the SVR to adjust so
that the frequency counter becomes 3,000 Hz.
4. Press the STOP button.
d.
Replacing the moto
e. Checking the mechanism torques
· Clean the head, capstan and pinch roller before making
any measurement.
Measurement
Take-up torque
Back tension
Tape tension
Cassette for
PLAY : TW-2111A
PLAY : TW-2111A
Drive-power cassette
measurement F.FWD/REW : TW-2231
TW-2412
PLAY
30 ~ 70gr.cm
1.0 ~ 6.0gr.cm
80 gr or more
F.FWD/REW
55 gr or more
-
-
CAUTION :
THIS PRODUCT CONTAINS A LOW POWER LASER DEVICE,
TO ENSURE CONTINUED SAFETY DO NOT REMOVE ANY
COVERS OR ATTEMPT TO GAIN ACCESS TO THE INSIDE
OF THE PRODUCT.
REFER ALL SERVICING TO QUALIFIED PERSONNEL.
LASER OUTPUT .............. 0.6 mW Max. (CW)
WAVELENGTH .................. 790 nm
a. Replacing the head
1.
After replacement, demagnetize the heads by using
a degausser.
2.
Be sure to clean the heads before attempting to make
any adjustments.
3.
Be sure both channels (1 and 2) are the same level.
(Using a dual-channels oscilloscope).
4.
All wiring should be returned to the original position
after work is completed.
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.


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- 2 -
1. FM
Connection
Input
Output
IC211
Alignment voltage IC211
3-22pin(TP24,25)
3-22pin is 0.0±0.05V
TP11(H)
87.5MHz
1.00±0.05V
TP12(E).
108.0MHz
5.50±0.50V Check Only
2. MW
Connection
Input
Output
TP13(L)
TP14(R)
TP15(E)
3. LW
Connection
Input
Output
L2204
-
L2205
-
TP15(E)
2
Tracking
Loop Ant
TP13(L)
TP14(R)
Maximum
L2103
CT212
162kHz
279kHz
TP13(L)
TP14(R)
TP15(E)
---
TP12(E)
TP11(H)
Maximum
L2102
CT211
603kHz
1404kHz
3
Tracking
Loop Ant
1
IF
Adjustment
Loop Ant
---
522kHz
1611kHz
TP12(E)
TP11(H)
450kHz
at 999kHz
T2001
Maximum
2
Cover
Voltage
1.00±0.05V
7.10±0.50V Check Only
1
Cover
Voltage
1.00±0.05V
5.40±0.50V Check Only
144kHz
288kHz
Remark
Step Adjusting
Circuit
SG
Frequency
Adjustment
Remark
Remark
SG
Frequency
Adjustment
Adjustment
L2002
T2002
98.0MHz
SG
Frequency
Step
Step
Adjusting
Circuit
Adjusting
Circuit
FM Antenna SG=66dBuV
1
2
IF(0V)
Adjustment
Cover
Voltage
---
E
E
E
E
E
MW ANT
LW ANT
MW OSC
E
E
E
E
E
E
BAND2
BAND1
LID_SW
IF
SD
FR_GND
AM OSC
VT
AMPGND
TU_L
TU_R
ST
MONO
MUTE
BAND1
BAND2
VT
1AD4B10D1710D
T002 94V-0
LW OSC
+B 9V
E
E
E
E
L2103
L2204
L2205
CT212
XF212
IC201
XF211
CT211
Q2001
Q2108
Q2107
Q2105
D2005
D2004
J2201
Q2106
D2102
Q2109
SH201
J2301
D2002
D2003
C2009
J2112
L2003
J2111
J2209
J2205
C2104
L2101
J2207
C2111
C2119
C2121
C2801
C2701
C2106
C2113
C2107
D2101
L2005
Q2101
L2006
J2202
J2100
Q2103
C2128
J2204
J2107
C2312
C2108
Q2111
J2308
C2218
J2303
Q2202
Q2201
J2102
J2103
J2203
S2001
J2206
J2305
CN201
L2002
J2307
J2104
J2105
C2112
T2002
J2101
IC211
T2001
D2006
J2304
J2110
U
J2108
L2102
XF210
J2210
L2007
Q2002
Q2003
D2104
CN203
CN202
Q2102
J2109
J2208
J2302
J2106
Q2110
J2300
J2200
XF215
J2306
R2129
L2001
C2131
C2142
R2131
R2123
R2123
C2133
C2133
R2124
R2124
C2026C
2
0
2
6
R2123
C2133
C2134
C2137
C2137
C2140C
2
1
4
0
C2137
R2125
R2124
R2122
C2310
R2120
R2121
C2024
C2005
C2002
R2001
C2001
C2001
C2014
C2014
C2022
C2022
C2001
R2002
C2014
R2005
C2013
R2004
R2003
C2011
C2012
C2008
C2015
R2014
C2017
C2003
C2003
C2003
R2006
R2008
R2007
R2009
C2021
R2101
C2101
C2101
C2101
C2118
C2117
C2120
C2122C
2
1
2
2
C2122
C2702
C2802C
2
8
0
2
C2802
R2801
R2701
C2103
C2102
R2104
R2106
C2110
R2116R
2
1
1
6
C2129C
2
1
2
9
R2116
C2138
C2138
C2141
C2141
R2108
R2108
C2138
C2141
C2126
R2113
R2117
R2119
R2108
C2123
R2109
R2112
R2110
R2111
C2124
C2125
C2125
C2125
C2209
C2020
C2019
C2127
C2129
C2311
C2207
R2128
R2127
R2203
R2206
R2206
R2201
R2201
R2206
R2201
C2027
C2140
R2115
C2025
R2126
C2026
C2115
R2301
C2114
R2303
R2302
R2105
C2010
R2205
C2022
C2029
R2107
R2901
R2010
R2011
R2210
L2002
L2204
L2205
L2102
TP11
TP24
TP25
TP12
TP13
TP14
TP15
T2001
L2103
CT211
CT212
T2002 T2001
TUNER ADJUSTMENTS
· Use a plastic screw driver for adjustments.
· MODE : ST (Stereo)
· Speaker impedance : 4 ohms
· TUNING
FM : 87.5 - 108MHz
MW: 522 - 1611kHz
LW : 144 - 288kHz
Antenna
: 75 unbalanced, Modulation : 1 kHz
Dev.
:
22.5kHz(MONO),
22.5kHz(STEREO),
6.75kHz(PILOT)
RF Level
: dBuV EMF
Output Level : about 30mV at TP13, TP14, TP15
Anntena
: IRE Loop(SG), Moduration : 1kHz 30%
RF Level
: dBuV EMF
Output Level : about 30mV at TP13, TP14, TP15


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- 3 -
EXPLODED VIEW (CABINET & CHASSIS)
1
3
2
6
7
10
9
8
Y01
Y02
Y03
Y03
Y04
Y05
Y05
Y07
Y08
Y07
Y06
Y08
Y09
Y10
Y11
Y14
Y15
Y16
Y16
Y17
Y18
Y19
Y12
Y13
11
15
14
13
4
5
12
16
17
18
19
24
25
73
27
28
29
32
33
30
31
34
35
26
24
20
21
51
52
55
53
54
56
71
72
74
75
57
76
58
23
22


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- 4 -
PARTS LIST
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.
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.
REF.NO.
PART NO.
DESCRIPTION
PACKING & ACCESSORIES
REF.NO.
PART NO.
DESCRIPTION
614 326 6402
CARTON CASE
614 325 2818
CUSHION,REAR
614 325 2825
CUSHION,FRONT
614 326 6440
INSTRUCTION MANUAL
645 005 1227
ASSY,ANTENA,LOOP
or
645 046 8322
ASSY,ANTENA,LOOP
645 057 4559
REMOCON,RB-DA1000
614 325 5741
LID,BATTERY,SERVICE
614 326 5962
ASSY,BOX,SPEAKER,SPEAKER(L,R)
CABINET & CHASSIS
REF.NO.
PART NO.
DESCRIPTION
1
614 325 2665
COVER,DECK
2
614 325 2672
DEC,WINDOW,DECK
3
614 325 2740
LID,CASSETTE
4
614 325 2788
SPRING,DOOR DECK
5
614 325 2603
ASSY,DOOR,DECK
6
614 325 2733
KNOB,VOLUME
7
614 325 2658
CAP,DECORATION
8
614 326 6259
DEC,WINDOW LCD
9
614 326 6334
PANEL,FRONT
10
614 326 6129
ASSY,PANEL,FRONT
11
614 309 7969
ASSY,GEAR,CASSETTE
12
614 326 1971
KNOB,DEC MECHA,REC
13
614 326 2589
KNOB,DEC MECHA,PLAY
14
614 326 2596
KNOB,DEC MECHA,REW
15
614 326 2602
KNOB,DEC MECHA,FFWD
16
614 326 2619
KNOB,DEC MECHA,STOP/EJECT
17
614 326 2626
KNOB,DEC MECHA,PAUSE
18
614 326 2633
MOUNTING,DEC KNOB
19
614 308 0534
SPRING,PLATE,REC
20
614 325 2719
DEC,WINDOW,BUTTON,1 KEY
21
614 325 2634
BUTTON,LEFT,8 KEYS
22
614 325 2702
DEC,WINDOW SENSOR
23
614 325 2627
BUTTON,RIGHT,5 KEYS
24
614 310 3899
SPACER,MECHA,CD+DA11
25
614 307 2072
COVER,PICK-UP
26
614 322 2132
ASSY,GEAR,LID,CD
27
614 325 2764
MOUNTING,CD
28
614 303 0263
LATCH,PUSH,CD DOOR LOCKING
29
614 307 8821
PULLEY
30
614 303 0256
LATCH,MAGNET
31
614 325 2795
SPRING,DOOR CD
32
614 325 2757
LID,CD
33
614 326 8581
DEC,WINDOW,CD
34
614 308 4914
STOPPER
35
614 326 8222
ASSY,CABINET,REAR
FIXING PARTS
REF.NO.
PART NO.
DESCRIPTION
Y01
411 020 8905
SCR S-TPG BRZ+FLG 3X10,GEAR
Y02
411 021 3503
SCR S-TPG BIN 3X10,
F-PANEL+MTG DECK KNOB
Y03
411 021 3503
SCR S-TPG BIN 3X10,
PANEL+DECK MECHA
Y04
411 126 1404
SCR S-TPG BIN 2X4,
SPRING DECK REC
Y05
411 021 3503
SCR S-TPG BIN 3X10,
FRONT PWB+MOUNT
Y06
411 021 3503
SCR S-TPG BIN 3X10,
MTG CD+CD PCB
Y07
411 021 1806
SCR S-TPG BIN 2.6X10,
MTG CD+MECHA CD
Y08
411 092 0906
WASHER Z 2.6X10X0.5,
MECHA CD+MOUNTING
Y09
411 021 3503
SCR S-TPG BIN 3X10,
MTG CD+TUNER PCB
Y10
411 021 3503
SCR S-TPG BIN 3X10,
MTG CD+ASSY,GEAR
Y11
411 021 4906
SCR S-TPG BIN 3X20,
PANEL+MOUNTING
Y12
411 021 3503
SCR S-TPG BIN 3X10,
MTG CD+AMP PCB
Y13
411 184 0906
SCR S-TPG BIN 2.3X10,
WIN CD+LID CD
Y14
411 020 9100
SCR S-TPG BRZ+FLG 3X12,
REAR+P-TRANS
Y15
411 021 3503
SCR S-TPG BIN 3X10,
REAR+STOPPER
Y16
411 098 7800
SCR S-TPG FLT 3X12,
PANEL+REAR+MOUNTING
Y17
411 021 4500
SCR S-TPG BIN 3X16,
PANEL+REAR
Y18
411 021 3503
SCR S-TPG BIN 3X10,
MTG CD+REAR
Y19
411 021 3503
SCR S-TPG BIN 3X10,
C-REAR(ANT-TERMINAL)
ELECTRICAL PARTS
REF.NO.
PART NO.
DESCRIPTION
51
614 326 2770
FLEXIBLE FLAT CABLE,
FRONT TO AMP
or
614 327 0812
FLEXIBLE FLAT CABLE,
FRONT TO AMP
52
614 326 2787
FLEXIBLE FLAT CABLE,
FRONT TO TUNER
or
614 327 0829
FLEXIBLE FLAT CABLE,
FRONT TO TUNER
53
614 314 4779
ASSY,WIRE
or
614 309 8454
ASSY,WIRE
54
614 326 2794
FLEXIBLE FLAT CABLE,CD PICK UP
or
614 327 0836
FLEXIBLE FLAT CABLE,CD PICK UP
55
423 016 7908
FUSE 250V 2.5A
56
614 274 2013
CORD,ID CONNECTOR
57
645 051 8775
TRANS,POWER
58
645 036 9803
CORD,POWER-1.6MK
or
645 036 9797
CORD,POWER-1.6MK
FRONT P.W.BOARD ASSY
REF.NO.
PART NO.
DESCRIPTION
71
614 325 4713
ASSY,PWB,FRONT(Only Initial)
BR601
614 325 3730
HOLDER,LCD,HOLDER_LCD
C6200
403 373 7001
NP-ELECT 1U M 50V
or
403 259 0508
NP-ELECT 1U M 50V
CN601
645 059 0474
SOCKET,FPC 14P,FRONT-AMP
CN602
614 016 8464
PLUG,FRONT-LED