Sony ICF-CD863V Service Manual ▷ View online
ICF-CD863V
17
17
5-3.
BLOCK DIAGRAM – MAIN Section –
63
HP ON
52
BUZZER
60
POWER ON
61
A MUT
76
RESET
48
CD ON
RADIO ON 59
NAP LED
CD LED
RADIO LED
BUZZER LED
68
BACK LIGHT1
42
AUTO DIMMER
49
AC IN
62
HP SW
SYSTEM CONTROLLER
IC401 (2/2)
L OUT 3
R OUT
STBY
5
8
R IN
11
L IN
12
BUFFER
Q309
LINE AMP
Q359
MUTING
Q151
B+ SWITCH
Q1
RV351
R-CH
R-CH
R-CH
R-CH
D303
Q302
MEGA BASS
FEED BACK
SWITCH
Q357, 363
STANDBY
SWITCH
Q351, 352
STANDBY
SWITCH
Q351, 352
HEADPHONE
DETECT
Q305
MUTING
CONTROL
SWITCH
Q360
MUTING
CONTROL
SWITCH
Q361
+5V
REGULATOR
Q951
LIQUID CRYSTAL DISPLAY
LCD401
+6V
REGULATOR
Q953
+3.3V
REGULATOR
Q952
+4V
REGULATOR
Q405
POWER AMP
IC351
OUT 2 3
OUT 1 5
STBY
8
BASS IN
12
POWER AMP
IC352
O/I4
10
O/I3
9
I/O3
8
I/O4
11
INPUT SELECT
IC303
D357
MUTING
Q307
MUTING
Q358
Q301
Q306
Q101
Q201
HEADPHONE
SWITCH
Q101, 201
T901
POWER
TRANSFORMER
D403 – 406
4V
D407 – 412
(LCD BACK LIGHT)
Q403,
Q404
Q404
SP101
(L-CH)
(L-CH)
SP301
(WOOFER)
SP201
(R-CH)
J301
(HEADPHONE)
i
(AC IN)
RECT
D902, 903
VT
3.3V
MOTOR 6V
TU 3.3V
CD 3.3V
TU 3.3V
CD 3.3V
RECT
D905, 906
RECT
D907, 908
B+ SWITCH
Q305
67
BACK LIGHT0
XT2
XT1
X2
X1
4V
LCD 3.3V
5V
RESET SIGNAL
GENERATOR
IC402
LOW-PASS
FILTER
IC302
BRIGHTNESS
SENSOR
IC403
D401
70
71
X401
32.768kHz
74
75
X402
4.19MHz
65
VR DATA
64
VR CLK
77 – 80
KEY0 – KEY3
43 – 46
COM0 – COM3
6 – 9
SEG0 – SEG27
10 – 37
Q401,
Q402
Q402
Q401 – 404
LED DRIVE
LED DRIVE
S601 – 621,
651, 652
: CD PLAY
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER
51
BUZZER MUTE
MUTING
Q152
MUTING
Q353, 354
R-CH
D352
3.3V
C
(Page 16)
A
(Page 15)
+
1
LOGIC
CONTROL
4
5
2
ELECTRICAL VOLUME
IC301
L IN
L OUT
VR DATA
6
C3
12
C4
VR CLK
RV401
AUTO
BRIGHTNESS
ICF-CD863V
18
18
5-4.
NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAMS
• Circuit Boards Location
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note on Schematic Diagram:
• 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.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: 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/TV (2 – 6 ch)
f
: AM
L
: TV (7 – 13 ch)/WEATHER (1 – 7 ch)
J
: CD
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
KEY board
LCD board
DIMMER board
MAIN board
CD board
HEADPHONE board
VOLUME board
TRANSFORMER board
AMP board
ICF-CD863V
19
19
2.6 Vp-p
239 ns
• Waveforms
– CD Board –
– CD Board –
1
IC701
4
(RF) (CD PLAY mode)
2
IC701
qd
(FE) (CD PLAY mode)
3
IC701
qg
(TE) (CD PLAY mode)
4
IC701
rk
(XOUT)
ws
IC401
uf
(X1) (CD PLAY mode)
0.85
±
0.2
Vp-p
Approx.
90 mVp-p
90 mVp-p
Approx.
60 mVp-p
60 mVp-p
2.9 Vp-p
29.5 ns
– MAIN Board –
qa
IC51
w;
(XOUT) (RADIO ON mode)
1.4 Vp-p
13.3
µ
s
– LCD Board –
wa
IC401
u;
(XT1)
7.5 Vp-p
30.4
µ
s
ICF-CD863V
20
20
M702
(SLED)
S701
(LIMIT)
C732
CNP701
X701
CNP702
C702
JW701 JW702
JW703
JW705
JW706
JW707
JW708
JW709
JW713
JW714
JW716
JW717
JW718
JW721
JW722
JW723
JW724
JW725
JW726
JW727
JW728
JW729
JW730
C740
C750
C746
C747
JW719
C735
JW720
JW711
C733
C706
JW712
JW710
JW715
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
C727
C711
C709
FB701
C736
C734
R709
C705
R704
R702
R711
R710
R703
R705
R701
C703
C731
R706
C738
C739
R727
R712
R723
C708
R741
JC701
R743
C751
JC702
C743
C744
C745
C742
C754
C755
C741
JC704
C707
L706
C717
R744
IC701
CD BOARD
A
MAIN BOARD
CN302
M
M
M701
(SPINDLE)
1-680-943-
13
(13)
C
D
E
F
G
H
1
2
3
4
5
6
7
8
A
B
TP
(GND)
TP
(RF)
OPTICAL
PICK-UP
BLOCK
(KSS-213R)
5-5.
PRINTED WIRING BOARD – CD Section –
•
See page 18 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
IC701
C-4
IC702
H-3
Q701
F-5
(Page 22)
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