Lcd Drive - Sony DCR-TRV30E Service Manual

For Schematic Diagram
• Refer to page 4-82 for printed wiring board of PD-145 board.
• Refer to page 4-81 for printed wiring board of control switch block (VB-1800).
• Refer to page 4-88 for waveform.
2
1
PD-145 BOARD(2/2)

LCD DRIVE

A
-REF.NO.:30000 SERIES-
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
B
C
EVER_3.0V
XOSD_SCK
4
OSD_SO
TO(1/2)
XCS_LCD_DRIVER
LCD_COM/XDATA
D
E
1
TO(1/2) REG_GND
3
KEY_AD7
TO(1/2)
F
G
16
3 4 5
32 31 30 29 28 27 26 25
R2180
680k
1.5
OSC1
1.9 IC2171
10
OSC2
LCD DRIVE
VSS
3.0
C2183
IC2171
0.1u
VC
B
BU9735K-E2
VLCD
VDD
2.8
SCK
2.7
SO
9 10 11 12 13 14 15 16
R2183
R2185 R2184 R2182
2700 2200 3900 8200
D001
01ZA8.2(TPL3)
P_UNREG_GND 5
4-85
6 7
21
N.C
COM4
20 COM4
COM3
19 COM3
SEG15
18 SEG15
SEG16
17 SEG16
1.4
SEG10 SEG1
SEG10
16 SEG1
1.4
SEG9 SEG14
SEG9
15 SEG14
1.4 SEG13
SEG8 SEG8
SEG13
14
1.4
SEG12
SEG7
SEG7
13 SEG12
1.4
SEG11
SEG6 SEG6
12 SEG11
1.4
SEG10
SEG5 SEG5
11 SEG10
1.4
SEG4 SEG9
SEG4
10 SEG9
1.4
SEG8
SEG3 SEG3
9 SEG8
SEG7
8 SEG7
SEG6
7 SEG6
SEG5
6 SEG5
SEG4
5 SEG4
SEG3
4 SEG3
SEG2
3 SEG2
COM2
2 COM2
COM1
1 COM1
CONTROL SWITCH BLOCK
(VB-1800)
CN2178 8P 8P
1 REG_GND GND 1
2 REG_GND GND 2
3 BRIGHT(-) BRIGHT(-) 3
4 BRIGHT(+) BRIGHT(+) 4
5 VOL(-) VOL(-) 5
6 VOL(+) VOL(+) 6
7 REG_GND GND 7
8 REG_GND GND 8
TO(1/2)
8 9
FP-182
FLEXIBLE
CN2175 21P
CHARACTER
DISPLAY
LCD902
S100
LCD BRIGHT -
S101
LCD BRIGHT +
S102
VOLUME -
S103
VOLUME +
LCD DRIVE
4-86
PD-145 (2/2)
DCR-TRV30/TRV30E
CONTROL SWITCH BLOCK
/
VB-1800