Block Diagram -Display Section; Circuit Boards Location - Sony CDX-V3800 Service Manual

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

3-4. CIRCUIT BOARDS LOCATION

)
15 15
SERVO board
SENSOR board
SPEAKER board
MAIN board
DISPLAY board
CDX-V3800
tuner unit
(TUX601)