Read Sony ICF-CD863V Service Manual 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
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