Sony CDX-V3800, Service Manual

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15 15
CDX-V3800
CDX-V3800
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
ACK ON
SWITCH
Q800
X801
32.768kHz
79
80
82
83
38
28
29
27
39
47
75
77
LCD DRIVER
IC501
KEYIN0
CLK
CE
LCD SO
LCD SCK
LCD CE
DIMMER
KEYIN1
KEY ACK
46 DST SEL
XKEY ON
46 DST SEL
RESET
DOOR SW
2 IN 1 OUT
X1A
X0A
X0
X1
X800
18.432MHz
S802
RESET
S800
9K
10K
FREQUENCY
SELECT
63
64
62
1
LCD501
LIQUID
CRYSTAL
DISPLAY
PANEL
LED501,502
LCD
BACK LIGHT
D801
S522
(OPEN)
3
I
50
•
51
I
54
|
SEG3
SEG50
COM4
COM1
|
CL
DI
CE
DISP+B
65 SIRCS IR
LED504-518,
520-522,524,525
2 OUT
U COM+3.3V
( )
KEY MATRIX
S501-521,523
26
SYSTEM CONTROL
IC801 (3/3)
IR RECEIVER
IC502
SHUT SW
LED
CONTROL
Q502
72
RESET
IC802
DISPLAY
BOARD
DIMMER
3-4. CIRCUIT BOARDS LOCATION
MAIN board
DISPLAY board
SENSOR board
SERVO board
SPEAKER board
tuner unit
(TUX601)