Page 1
CD-C823W
SERVICE MANUAL
No. S8952CDC823W/
CD-C823W
CD-C823W mini component system consisting of CD-C823W (Main
unit) and CP-C823 (Speaker system).
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
The model CD-C823W excludes the change of the main PWB and the surround speakers from the model CD-C821W. This
manual includes only the alterations.
Please refer to the existing service manual model CD-C821W (S6938CDC811W/) for other sections.
SPECIFICATIONS
● Amplifier section
Output power: MPO; 60 W (30 W + 30 W)
(10 % T.H.D.)
RMS; 40 W (20 W + 20 W)
(10 % T.H.D.)
RMS; 28 W (14 W + 14 W)
(0.9 % T.H.D.)
Output terminals: Speakers; 4 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
● Speaker section
Type: 2-way type [13 cm (5-1/4") woofer
and super tweeter]
Maximum input power: 40 W
Rated input power: 20 W
Impedance: 4 ohms
Dimensions: Width; 180 mm (7-1/8")
Height; 300 mm (11-13/16")
Depth; 215 mm (8-7/16")
Weight: 2.0 kg (4.4 lbs.)/each
NAMES OF PARTS
■ Rear panel
11.
AC Power Input Socket
12.
AC Voltage Selector
13.
Speaker Terminals
14.
FM 75 Ohms Aerial Terminal
15.
Aerial Earth Terminal
16.
AM Loop Aerial Terminal
1
2
3
4
5
6
SHARP CORPORATION
– 1 –
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
Page 2
CD-C823W
DIFFERENCE BETWEEN CD-C821W AND CD-C823W
REF.
NO
PART NO.
CD-C821W
INTEGRATED CIRCUITS
IC904 VHiAN78L05/-1 J Not used Constant Voltage Regulator,AN78L05 ––
Q904 Not used VHiAN78L05/-1 J Constant Voltage Regulator,AN78L05 AE
DIODE
LED722 Not used VHPSLi342UCJ1 J LED, Red, SLI342UCJ1 AC
CAPACITORS
C412 VCQYKA1HM683J J VCFYHA1HA683J J 0.068 µF, 50V, Thin Film AC
C416 VCQYKA1HM683J J VCFYHA1HA683J J 0.068 µF, 50V, Thin Film AC
C615 VCEAZA1HW226M J VCEAZA1HW107M J 100 µF, 50V, Electrolytic AC
OTHER CIRCUITRY PART
SO601 QTANA0801AWZZ J QTANA0414AWZZ J Terminal, Speaker
CABINET PARTS
201 92LCAB3046AS1 J 92LCAB3216AS1 J Front Panel Ass'y
201-1 –––––– Same as CD-C821W Front Panel (Not Replacement Item) ––
201-2 HDECQ0502AWSA J HDECQ0509AWSA J Panel,Display
201-3 HDECQ0460AWSA J Same as CD-C821W Panel,Operation AH
201-4 HDECQ0461AWSA J Same as CD-C821W Ring,Operation AC
201-5 HDECQ0462AWSA J Same as CD-C821W CAB.,Operation Center AC
201-6 HDECQ0469AWSA J Same as CD-C821W Panel,Center CAB. AE
201-7 JKNBZ0603AWSA J Same as CD-C821W Button,Stop/Play/Repeat AG
201-8 JKNBZ0604AWSA J Same as CD-C821W Button,Function Selector AF
201-9 JKNBZ0605AWSA J Same as CD-C821W Button,Volume Up/Down AF
201-10 JKNBZ0629AWSA J Same as CD-C821W Button,On/Stand-by AE
201-11 JKNBZ0607AWSA J Same as CD-C821W Button,X-BASS/Demo AE
201-12 JKNBZ0608AWSA J Same as CD-C821W Button,Timer/Sleep/Clock AC
201-13 JKNBZ0610AWSA J Same as CD-C821W Button,Disc Skip/Open/Close AM
201-14 PCUSG0022AWZZ J Same as CD-C821W Cushion,Leg AB
205 GiTAR0500AWSA J GiTAR0507AWSA J Back Board
259 TSPC-0590AWZZ J TSPC-0606AWZZ J Label,Specifications
ACCESSORIES/PACKING PARTS
SPAKC0790AWZZ J SPAKC0842AWZZ J Packing Case
TiNST0054AWZZ J TiNST0059AWZZ J Operation Manual
TLABE0320AWZZ J TLABE0338AWZZ J Label,Bar Code
TLABZ0546AWZZ J TLABZ0554AWZZ J Label,Feature,Tape 2 AD
P.W.B. ASSEMBLY (Not Replacement Item)
PWB-A1~4 92LPWB3046MANS J 92LPWB3216MANS J Main/Display/Headphones/Switch ––
MARK: SPARE PARTS-DELIVERY SECTION
PART NO.
CD-C823W
DESCRIPTION
(Combined Ass'y)
CODE
DIFFERENCE BETWEEN CP-C821 AND CP-C823
REF.
NO
PART NO.
CP-C821
SPEAKER BOX PARTS
705 92L600CPC82100 J 92L600CPC82300 J Label,Specifications
SP1,2 VSP0013PB386A J VSP0013PB444A J Woofer
MARK: SPARE PARTS-DELIVERY SECTION
PART NO.
CP-C823
– 2 –
DESCRIPTION
CODE
Page 3
• CD-C821W Service Manual 24,25 Pages.
A
B
R701
R794
R703
C
R709
R712
R713
R714
R715
D
1K
10K
1K
1K
1K
1K
1K
1K
4.8V
4.7V
4.8V
4.8V
4.8V
4.7V
4.7V
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
0V
58
0V
57
0V
56
0V
55
54
0V
53
52
51
0V
0V
81
82
0V
P5P4P3
VLOAD
0V
P7
0V
P8
0V
P9
0V
P10
0V
P11
0V
P14
0V
P20
0V
P13
P16/DIST1
P15/DIST2
P21/DIST3
P22/DIST4
DISTOUT
SPN_P
SP DET
5.1V
NC
POWER
HI-CUT
NC
NC
NC
S MUTE
KEY JOG B
KEY JOG A
DISTO
T_T1T2
T-BIAS
FPA
49
50
0V
5.2V
1K
R730
0V
84
83
P2
0V
88
85
86
P1
P12
80
P6
90
89
87
NC
P19
P18
P17
0V
0V
0V
0V
0V
0V
0V
IC701
IX0283AW
SYSTEM
MICROCOMPUTER
REC/PLAY
52
AC PLY-CON
51
3.6V
5V
5V
11.8V
11.8V
5V
VDD
T_MOT
T_SOL
TIMER LED
DNO SW
U/D SW
42
43
44
2.2K
R734
1.8K
R735
1K
R736
41 40 39
1K
R737
45
2.2K
R733
0V
5V
5V
5V
T1FAS
48
1K
R731
0V
0V
0V
0V
5V
CAM SW
47
46
1K
R732
91
92
NC
0V
1
31
32
33
0V
VSS
1K
R738
0V
5.5V
94
95
93
G5
G6
G7
G8
0V
0V
0V
VDD
0V
0V
4.8V
4.8V
4.8V
KEYIN3
KEYIN2
KEYIN1
5V
5V
5V
REMOCON
SYS STOP
O/C SW
37
36
38
1K
1K
10K
R741
R740
R739
0V
0V
99
98
96
97
1G2GG3G4G9
4.8V
0V
0V
4.9V
0V
0.7V
4.6V
CLK
CD DSP RWC
4.8V
RESET
2.3V
2.1V
0V
VPP
CD DSP WRQ
CD DSP COIN
CD DSP CQCK
PUIN SW
35
0.3V
VDD
4.8V
0V
PCCL
SQOUT
0V
CD DSP RES
0V
FRF(DRF)
0V
SLD+
0V
SLD–
0V
AVSS
5V
5V
TUN SM
5V
T2 RUN
AVDD
AVREF
33
32
34
5V
DO
CE
CD-C823W
0V
100
4.8V
1
NC
2
3
4
DI
5
6
0V
NC
7
NC
0V
8
9
10
X2
11
X1
12
13
NC
14
15
16
17
18
19
20
21
22
23
24
25
26
0V
27
0V
28
0V
29
30
5.1V
31
5V
1K
R744
R778
R777
R776
R775
R772
R771
XL701
4.19MHz
R770
R769
R768
R767
R766
R765
R764
R763
R762
1K
R745
1K
1K
1K
560
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
1K
FM SIGNAL
PLAYBACK SIGNAL
E
• CD-C821W Service Manual 28 Page.
F
G
H
RECORD SIGNAL
R416 1.5K
R415 1.5K
R410
3.3K
C404
10/50
R412
330
C406
4.7/50
C407
4.7/50
C410
C411(ML)
0.033
0.22
R413
2.2K
R427
47K
R414
1.5K
NC
C412
0.068
C413
10/50
C414
0.022(ML)
ZD401
DZ2.4BSB
LED722
SLI342UCJ1
R752
10K
AUDIO
PROCESSOR
IC401
M62439SP
6
10
1
2
3
4
5
7
8
9
0V
0V
0V
0V
0V
0V
0V
0V
2.68V
R418
3.9K
20
0V
19
0V
0V
18
0V
17
16
0V
15
0V
14
0V0V
13
12
11
TIMER
R747
10K
R748
R753
10K
R422 1.5K
R421 1.5K
R420 1.5K
NC
R423
10K
R419
R750
10K
R749
10K
10K
R755
10K
10K
R756
10K
R757
C418 4.7/50
C419 4.7/50
C415 0.033(ML)
C416 0.068
DZ2.4BSB
C417
4.7P
C423
10K
C422
10/50
1K
R742
ZD402
0.022
1K
R743
R424
560
3.3K
R751
C424
0.22
R425
330
R428
47K
R426
2.2K
: CHANGED
1
23 45 6
Figure 3 SCHEMATIC DIAGRAM (1/3)
– 3 –
Page 4
CD-C823W
1
C
3
• CD-C821W Service Manual 26,27 Pages.
A
B
C
D
L_IN
12
A_GND
13
R_IN
14
A_+12V
15
M_GND
16
CD_+B
10
TO MAIN PWB
CD GND
11
P28 2-D (CD-C821W)
FM SIGNAL
+B
33K
R602
+B
C603
C604
1/50
0.0015
C601 0.0015
R601 33K
C602
IC901:CONSTANT VOLTAGE
R911
2.2
C901
REGULATOR
R910
2.2
47/25
IC901
6.3V
3 1
AN78L05
2
1.2V
C902
0.047
(ML)
D901
DS1SS133
D902
DS1SS133
12V
1/50
C605
R603
C611
220P
C904
0.047(ML)
1.2V
R605
100/50
220
10K
R901
0V
2.2V
1K
R604 10K
+B
C906
0.022(ML)
–
+
+
–
17.8V
31.7V
1.2V
33.5V
0V
0V
89
1011121314
1K
R606
C610
0.001
C608
100/50
R607
C607 220/50
220
34.6V
7
D929
1N4004S
56
C609
0V
47/50
D928
D927
1N4004S
VOLTAGE REGULATOR
IC903
12V
3
KIA7812P
2
0V
C907
47/16
C908
0.1(ML)
IC601
LA4451
POWER AMP.
18V
0V
31.6V
1234
C612
47/50
D926
1N4004S
1N4004S
C615
100/50
22V
1
C910
0.1(ML)
C613
1000/25
C614
1000/25
C616
0.022
C618
4.7
R608
0.047
2200/50
R610
270(1/2W)
C912
C617
4.7
R609
0.047
R611
270(1/2W)
D910, 911, 914, 9
1N5402M
E
F
G
H
TO MAIN PWB
+B
SW+5V
26
–15V
19
M_+12V
20
VF1
21
–VP
22
VF2
23
UN_SW_+5V
24
D_GND
25
POWER
P29 12-G (CD-C821W)
18
AC_RLY_CONT
17
+B
–B
+B
POWER PWB-A2
: CHANGEEY ELIMINATED
VOLTAGE REGULATOR
IC902
7.6V
3
KIA7806P
2
C903
47/16
+B
C905
0.022(ML)
1
1.3V
D903
DS1SS133
D904
DS1SS133
22V
F903
T 500mA L 250V
C909
0.1(ML)
C911
3300/25
34.2V
RL901(RELAY)DRIVER
+B
D905
1N4004S
C913
1000/25
Q902
KRC107 M
4V
3
1
0V
12K
R902
D919
DS1SS1
6.2V
R903
C925
1000/6.3
D906
1N4004S
C914
0V
100/25
220(1/2W)
D918
DS1SS133
+B
–B
2
1
23 45 6
Figure 4 SCHEMATIC DIAGRAM (2/3)
– 4 –
Page 5
CD-C823W
2
1, 914, 915:
12K
R903
902
W)
34.4V
D911
D912
1N4004S
22V
D913
1N4004S
C915
100/35
ZD901
DZ6.2BSA
R904
220(1/2W)
D910
C916
47/50
–28.4V
KTA1266 GR
VOLTAGE
REGULATOR
100
R905
Q901
D914
D915
D916
1N4004S
D917
1N4004S
C917
47/50
–29.1V
–38.2V
ZD902
DZ300BSB
3.3K
R906
1
5
C918
47/50
D908
1N4004S
1N4004S
D907
1N4004S
C920
100/50
HEADPHONES PWB-A3
FW601
D909
17.3V
C921
0.1
(ML)
11.3V
C923
C919
100/50
0.047
1
5
T3.15A L 250V
C922
0.1(ML)
T1.6A L 250V
(ML)
C924
0.047(ML)
F901
F902
R616
330
R617
330
SO601
+
–
–
+
1
2
3
4
5
6
CNP902
JK601
HEADPHONES
FRONT L-CH
GND
GND
FRONT R-CH
PT901
POWER TRANSFORMER
1
2
3
4
5
6
CNS902
SO601
SPEAKER
TERMINALS
T.F
CNS901
5
4
3
2
1
5
4
3
2
1
CNP901
230-240V
DS1SS133
220V
127V
110V
D925
SW902
VOLTAGE
SELECTOR
RL901
RELAY
C929
0.0047
AC POWER
SUPPLY CORD
110/127/220/230-240V
50/60Hz
S0901
AC SOCKET
D919
DS1SS133
6.2V
CONSTANT VOLTAGE
REGULATOR
5.5V
AN78L05
R908
220
5.6V
2
C925
1000/6.3
C926
10/16
D920
DS1SS133
7
Q904
24V
1
3
0.6V
D921~D924:1N4004S
+B
D922
D924
C928
0.047
D923
(ML)
PT902
BACK UP TRANSFORMER
C927
470/25
D921
8 9 10 11 12
Figure 5 SCHEMATIC DIAGRAM (3/3)
– 5 –
Page 6
CD-C823W
C536
C
3
1
R906
5
R
8
• CD-C821W Service Manual 36,37 Pages.
A
B
C
D
SO601
E
F
G
P39 7-G (CD-C821W)
SPEAKER
SO901
AC POWER INPUT
AC110/127/220/230-240V
50/60Hz
AC POWER
SUPPLY CORD
FROM POWER
TRANSFORMER
CNS901
FRONT
SPEAKERS
TERMINALS
5.4 OHMS MIN.
SPAN SELECTOR
FROM POWER
TRANSFORMER
(CD-C821W)
MAIN PWB-A1
SO901
SW902
VOLTAGE
SELECTOR
GND
R-CH
GND
L-CH
50/9
SW401
100/10
CNS902
P39 11-G
BUCK UP TRANSFORMER
SW902
110V
230-240V
PT902
127V
220V
HEADPHONES PWB-A3
5
R616
R617
FW601
10
R607
R606
C615
1
IC601
C608
C610
C616
C609
C617
C618
C612
C614
C613
IC903
123 1
C910
R901
23
456789
1
D927
D929
D926
D928
R608
R610
R609
R611
C928
D924
D923
D921
D922
R908
CNP901
D919
D918
C929
C927
C926
Q904
1 3 2
D920
C925
D925
1
2
Q902
3
RL901
1
C611
C605
1
R603
C603
R605
C601
1314
C607
R601
R602
R604
C602
1112
C604
2
F901
D914
C921
D910
D915
D911
C923
CNP303
P33 12-F
D913
FW601
5
D912
C911
C912
R911
R401
C406
R416
6
BI401
WH
WH
WH
WH
WH
RD
R430
R422
1
R427
R428
C407
R519
C411
R415
R414
1 2 3 4 5 6 7 8 9
R429
IC401
201918171615141312
R420
R421
C419
C418
C513
R521
R510
R528
R513
Q503
B C E E
C503
C415
R426
R520
R512
R505
C425
1 2 3 4 5 6 7 8 9
R410
C404
C410
C412
R408
C414
R413
R412
10
C402
C413
C422
11
C424
C416
C423
R425
R424
ZD402
CNP501
Q510
3 2 1
E C B
R511
C502
Q506
B C E
R518
C506
Q507
B C E
C504
C507
1 2 3 4 5 6 7
CNP502
R501
E
C
C
R504
B
B
Q505
Q502
R506
R507
CNS303
R558
C550
C551
R559
C417
ZD401
R517
Q511
R529
B C E
B C E
Q402
R406
R423
R419
C501
E
C
B
E C B
R404
R409
R418
R417
C515
R515
R514
Q504
C514
R535
R530
C524
3
4
5
T3.15A L 250V
C922
CNP902
1 2 3 4 5 6
F902
T1.6A L 250V
D916
D917
C924
TO TUNER PWB
(CD-C821W)
JK601
HEADPHONES
IC902
C906
C905
C908
C907
F903
T500mA L 250V
R902
R904
R903
C919
Q401
R402
R405
C401
D906
R403
C914
C403
R411
R407
C405
R532
R534
C517
R525
C519
C512
R523
C521
R527
C510
1 2 3 4 5 6 7 8 9
IC501
24232221 20191817 16151413
C509
C520
R522
C511
C518
R531
R524
R526
C522
Q509
Q508
R561
C516
23
C903
1
R538
1 2 3
1 2 3
B C E
11
D909
C525
C523
R536
R543
R508
Q501
C526
R539
D904
D908
R550
C527
Q512
R533
D903
FW702
ZD901
C915
D905
C920
Q513
B
C
E
R540
C529
101112
C528
E
C
B
R546
C909
IC901
1 3 2
C916
C532
R544
R537
R509
R503
C505
C904
R502
R542
R545
C534
B
C
E
C541
D907
R548
C533
R541
WH
WH
WH
WH
WH
RD
C53
D901
R905
C9
1
FW701
9
C5
R547
R553
Q516
R
H
1
23 45 6
Figure 6 WIRING SIDE OF P.W.B.OARD (1/2)
– 6 –
Page 7
CD-C823W
C
C903
R538
SWITCH PWB-A4
TO CD SERVO PWB
P38 5-G (CD-C821W)
15 14 13 12 11 10
BLBLBLBLBLBLBLBLBLBLBLBLBL
15
RX701
3
2
1
C715
1
2
Q705
3
100
95
90
81
85
75
80
70
D702
D701
R794
R701
R703
R726
R709
R781
R797
D718
D719
D720
CNP12
987654321
BI701
RD05
FL701
R720
LED722
RD03
SW703
CLOCK
BL
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
RD
1
RD04
CNS701
SW704
TIMER/
SLEEP
FW703
8
1
RD13
1
FW701
9
SW707
OPEN/
CLOSE
SW726
VOLUME
DOWN
11
FW702
BI702
RD14
D703
1
R747
SW714
TUNER
(BAND)
RD25
RD12
RD06
RD24
R748
R742
R758
RD15
SW715
TAPE
D704
R749
R757
R780
R751
R752
R753
RD11
SW706
DISK SKIP
SW724
TUNING
DOWN
RD23
SW725
PLAY
R750
R756
R755
RD10
SW712
MEMORY/
SET
RD26
R754
RD22
R745
R744
SW727
VOLUME
UP
R768
R765
R763
SW713
STOP
R740
R737
R736
R735
R734
REC PAUSE
C708
C707
XL701
R732
R731
SW711
B
C
E
R760
Q702
SW716
CD
ON/STAND-BY
SW728
X-BASS
DEMO
SW723
TUNING UP
R770
R769
R767
R766
R743
R741
R739
R738
R733
R730
L702
B
C
Q703
E
D716
SW701
RD21
R771
R764
R762
30
31
SW710
FORWARD
D721
C712
R795
3 2 1
Q704
R759
FAST
R772
C702
R775
25
35
C705
RD01
R798
C706
SW722
REWIND
R777
R776
15
20
IC701
40
45
50
C713
3 2 1
R778
1
10
55
51
R714
R715
R713
R712
IC704
C714
C721
C709
5
60
R724
C717
C711
D717
R711
1 3
FW703
R723
C710
65
1
01
HONES
3
DISPLAY PWB-A2
02
1
D901
C904
1 3 2
D907
C916
R502
R542
R545
C533
C534
B
C
E
C541
WH
WH
WH
WH
WH
R548
C538
R541
RD
R905
C913
C531
R547
R553
Q516
1
FW701
9
R557
R906
C508
C536
R556
C902
Q901
E
C
B
R549
C535
C537
R551
C530
B C E
R552
C901
CNS401
ZD902
3
2
1
R555
D902
R910
6
5
TO CD SERVO PWB
4
CNP11
3
P38 4-G (CD-C821W)
2
1
C918
C917
FROM TAPE
MECHANISM
CNS101
P39 9-E
(CD-C821W)
R516
Q515
Q514
P39 10-E (CD-C821W)
R554
C539
C540
L503
FROM TAPE
MECHANISM
CNS102
COLOR TABLE
BR
RD(R)
OR
YL
GR
BL
VL
GY
WH(W)
BK
PK
TO TAPE
MECHANISM
PWB
CNPM1
P39 12-A
(CD-C821W)
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GRAY
WHITE
BLACK
PINK
CNS702
12
11
10
9
8
7
6
5
4
3
2
1
WH
WH
WH
WH
GY
GY
GY
RD
C909
D903
D904
IC901
250V
11
FW702
03
ZD901
919
C915
D908
D909
D905
914
C920
Q513
R550
B
C
E
525
R540
C529
C527
C523
7 8 9
101112
01
18171615 1413
C532
C526
C528
R544
R539
Q512
R537
E
C
R536
B
R533
R543
R546
1 2 3
1 2 3
R508
B C E
Q501
R509
R503
C505
7
8 9 10 11 12
Figure 7 WIRING SIDE OF P.W.B.OARD (2/2)
– 7 –
Page 8
CD-C823W
COPYRIGHT 1999 BY SHARP CORPORATION
©
ALL RIGHTS RESERVED.
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any from or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
– 8 –
SHARP CORPORATION
Communication Systems Group
Quality & Reliability Control Center
Higashihiroshima, Hiroshima 739-0192, Japan
Printed in Japan
A9908-688NS•HA•M
EX(STCL)
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