Sony ICF-CD832 Service Manual ▷ View online
ICF-CD832
17
17
• Signal path
: CD
: FM
: AM
• R-ch is omitted due to
Same as L-ch
5
4
1
2
54
53
55
56
58
58
57
50
50
39
59
52
37
I
30
SEG0
I
SEG12
SEG1
I
SEG13
68
I
64
60
61
63
62
51
18
14
15
16
17
49
77
78
76
1
3
7
1
11
40
79
80
42
44
75
43
45
46
X402
4.19MHz
CN301
SP101
SP201
R-CH
+3.9V
CN302
CN901
CH901
4
3
L
IN
IN
L
OUT
2
1
4
3
2
1
5
4
1
2
FREQ.
CHECK
+3.9V
REG
+3.9V
Q1
Q904
Q551
Q601
Q602
Q901
T901
JW901
Q902,903
+6V
CD+B
+11V
6V
REG
LED
DRIVE
LED
DRIVE
SOFT
START
LED
DRIVE
LED
DRIVE
LED
DRIVE
+B
SWITCH
+B
SWITCH
Q401
S401
CN601
MUTE
DRIVE
Q301
Q403
+B
SWITCH
+B
SWITCH
+B
SWITCH
Q401
Q516
Q514
Q517
Q515
Q501-513
AMP
Q102
AMP
Q101
Q103
IC401
SYSTEM CONTROL
IC402
RESET
3
4
6
10
8
7
5
5
1
3
4
5
7
6
2
1
CD+B
+6V
R-CH
R-CH
TU-R
TU-L
DATA
A MUT
BUZZER
POWER ON
BRIGHTNESS
SEG13
SEG14
50/60Hz
RESET
AC IN
RADIO ON
CD ON
VREF
CN501
DATA IN CD
CLK
LAT
XRST
XRST
DRF
WRQ
FSEQ
SEG14
SEG15
SEG16
COM1
COM2
CD OPEN
KEY1
X2
74 X1
+3.9V
71
X401
32KHz
XT2
70 XT1
SW2
SW0
SW1
CD/RADIO
NAP LED
KEY0
11
9
12
13
1
I
13
S653
CLOCK/TRACK
S602
RADIO ON
S604
TIME SET -
S606
SNOOZE/
SLEEP OFF
S607
ALARM
SET A
S610
ALARM
SET B
S603
CD
S601
OFF
VR301
VOLUME
S605
SLEEP
S608
NAP
S609
TIME SET +
D601
CD/RADIO
D602
NAP
S652
BRIGHTNESS
S612
ALARM B-MODE
S651
CD PLAY MODE
CD RADIO BUZZER OFF
S611
ALARM A-MODE
CD RADIO BUZZER OFF
NORMAL
REPEAT
SHUFFLE
SHUFFLE REPEAT
CD BOARD
CNP702
STBY
IN AMP
OUT AMP
IC301
POWER AMP
AC IN
LED501
CLOCK DISPLAY
A
MAIN BOARD (2/2)
KEY(B) BOARD
KEY(A) BOARD
DRIVE BOARD
TRANSFORMER BOARD
Z
PUSH
OPEN/CLOSE
B
5-4. BLOCK DIAGRAM — MAIN SECTION —
(Page 15)
(Page 16)
ICF-CD832
18
18
5-5. PRINTED WIRING BOARD — CD SECTION — • Refer to page 14 for Circuit Boards Location.
1
A
B
C
D
E
F
G
2
3
4
5
6
7
M
M
OPTICAL
PICK-UP
BLOCK
(KSS-213R)
C N 5 0 1
1
15
10
2
16
M701
SPINDLE
MOTOR
M702
SLED
MOTOR
IC701
Q701
IC702
C729
C730
R730
R728
R729
C704
R708
C728
R724
R722
R725
R726
R707
C701
C726
C723
C725
C724
R719
R717
R718
R716
C720
C721
C722
R731
R721
R720
C716
R715
R714
1-688-377-
(11)
11
C727
C711
C709
FB701
C736
C734
R709
C705
R704
R702
R711
R710
R703
R705
R701
C703
C731
R706
R727
R712
R723
C708
R741
JC701
R744
R743
C751
JC702
JC703
C743
C744
C745
C742
C754
C755
C741
JC704
C707
L706
C717
C739
C738
TP
(VREF)
TP
(TE)
TP
(FE)
TP
(RF)
TP
(R-CH)
TP
(L-CH)
R732
S701
(LIMIT)
C732
CNP701
X701
CNP702
C702
JW701
JW702
JW703
JW705
TY
FY
TX
FX
JW706
JW707
JW708
JW709
JW713
JW714
JW715
JW716
JW717
JW718
JW721
JW722
JW723
JW724
JW725
JW726
JW727
JW728
JW729
C740
C750
C746
C747
JW719
C735
JW720
JW711
C733
C706
JW712
JW710
(Page 21)
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Common Note on Schematic Diagrams:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
J
: CD
Common Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ver 1.1
ICF-CD832
19
19
5-6. SCHEMATIC DIAGRAM — CD SECTION — • Refer to page 18 for Common Note on Schematic Diagrams and page 26 for IC Block Diagrams.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : CD PLAY
no mark : CD PLAY
IC B/D
IC B/D
C745
R707
CNP701
R701
R702
R703
R703
R704
R705
R706
R705
R706
R712
C751
M702
M701
R744
R743
C741
C733
C732
R724
R709 R710
C703
C704
R711
C743
C731
R708
C708
C742
R741
C740
C709
R726
C729
R731
R720
R719
R722
R727
R728
C744
R730
R729
C724
C720
C722
C723
C723
C721
R717
R716
R716
R718
R721
R721
FB701
C717
C735
R715
R714
R723
C728
R725
C702
S701
C730
CNP702
C707
C706
TP
TP
C711
L706
C750
C747
C746
C701
C739
IC702
JC702
JC701
C738
C705
C734
C736
JC703
C727
C726
C726
C725
R732
C755
C754
IC701
X701
C716
Q701
JC704
(Page 20)
1
IC701
4
(RF)
500mV/div 0.5µsec/div
2
IC701
qd
(FE)
100mV/div 20µsec/div
3
IC701
qg
(TE)
100mV/div 20µsec/div
4
IC701
rk
(XOUT)
1V/div 0.05µsec/div
0.85±0.2Vp-p
Approx. 100mVp-p
Approx. 100mVp-p
1.8V
1.8V
3.2Vp-p
• Waveforms
(Mode: PLAY)
16.93MHz
ICF-CD832
20
20
5-7. SCHEMATIC DIAGRAM — MAIN SECTION — • Refer to page 18 for Common Note on Schematic Diagrams and page 26 for IC Block Diagrams.
TRANSFORMER
IC B/D
IC B/D
C401
C402
C403
C404
C405
C406
C407
C408
C411
C410
R401
R402
R403
R404
R405
R406
R407
R408
R409
C413
C414
C415
C416
C417
C461
R416
R417
R418
R419
R421
R423
R425
L401
C418
C422
C423
C424
C426
C427
C428
C429
C430
R426
R427
R428
R429
R430
R432
R433
R434
JC2
C419
C420
R445
R446
R447
R448
R449
R450
R451
R452
R470
R458
C432
C433
C434
C435
C436
C437
C438
C439
C440
C441
C442
C443
C445
C446
C447
C448
C449
C463
BP401
BP402
L402
X402
X401
R469
R444
R443
R441
R466
R465
R464
Q403
Q402
R463
C459
C460
BP404
BP405
BP406
R410
R411
IC1
C11
CF2
T2
R4
R3
C8
C13
C12
BP1
ANT1
BPF1
TP5
TP6
C204
C206
D301
C301
R206
R103
R203
R102
C104
C106
R202
R106
C208
C108
R207
R107
C207
C107
R220
R209
R109
R210
R110
Q202
Q102
Q101
Q201
TP301
TP202
TP102
TP101
R201
R101
C203
C103
TP203
TP201
TP103
RV301
RV301
R212
R112
R211
R111
C109
C209
R302
R303
R304
C303
D302
R213
R113
C210
C110
R214
R114
Q203
Q103
TP302
IC301
R215
R115
R216
R116
C213
C113
C308
R217
R117
R306
C305
C304
C212
TP204
C112
TP104
C215
C115
TP205
TP206
TP106
TP105
CN301
CN302
SP201
SP101
Q903
D912
C917
C915
C913
C911
C918
C908
C909
C910
C912
C914
C916
R908
R907
R906
R905
D907
D908
R904
D910
D911
R910
R909
D909
R903
CN901
TP904
TP903
TP905
C551
C919
R552
R911
R912
R551
D913
D914
C312
D402
R472
R461
R460
C450
IC402
C451
C452
C454
C455
D401
R457
BP403
TP3
C21
C421
CN501
D403
R467
C456
D404
R468
C457
W401
21p
21p
W403
9p
9p
S401
Q401
R11
Q301
Q1
Q551
Q904
Q901
C467
C464
C465
C466
C307
D405
C29
R5
R6
R7
TP8
TP7
TP4
CV1-4
CV1-3
CV1-2
CV1-1
L2
L5
S1
C19
C17
C16
C15
C18
C14
C25
C20
C31
C2
C3
C34
C35
CT1
CT2
CT3
CT4
C23
L4
C216
C116
C1
C37
C4
R471
C444
C201
C101
C117
C217
C409
IC401
C462
R459
R439
R438
R437
R436
R435
C425
R413
C36
R10
R13
CF1
C9
C10
R308
R219
R119
C221
C121
R120
C302
R301
C205
C105
C223
C123
Q902
L1
T1
(Page 22)
(Page 22)
(Page 19)
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : AM
(Page 22)
1
IC401
u;
(XT1)
2V/div 10µsec/div
2
IC401
uf
(X1)
2V/div 10µsec/div
2.2Vp-p
4.19MHz
2.4Vp-p
• Waveforms
32.768kHz
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