Philips PET944 Service Manual page 18

5
7.0 ELECTRICAL DIAGRAM
CIRCUIT DIAGRAM-TFT DRIVER
D
AVDD
AVDD=+10V
CHIMEI 9"HANNSTAR Gamma
setting
C
JL3
B2
1
B3
2
B4
3
B5
4
B6
5
B7
6
GND
7
G7
8
G6
9
G5
10
G4
11
G3
12
G2
13
CON 13P*1.25
JL2
GND
1
R2
2
R3
3
B
R4
4
R5
5
R6
6
R7
7
GND
8
POL
9
CLKV
10
CON 10P*1.25
LP
LP 3
+3.3V
+3.3V 3
VGL
VGL 2
A
VGH
VGH 2
AVDD
AVDD 2
PCK1
PCK1 3
5
4
LL1
0/0805
RL301 47/1% RL12 15/1%
ECL1
+
10uF/16V
GNDD
CON 10P*1.25
4
3
R2
R3
R4
R5
R6
R7
G2
G3
G4
G5
G6
VG1 VG8
G7
10V B2
2.9V
B3
B4
B5
B6
B7
GNDD GNDD
VG2 VG9
8.7V
2.3V
+3.3V
GNDD GNDD
VG3 VG10
1V
8.1V
10uF/10V/0805
GNDD GNDD
VG4
7.68V
GNDD
GNDD
VG5
6.8V
CL9
0.1uF
GNDD
VG6
4.2V GNDD
GNDD
VG7
3.32V
GNDD
VG8
2.9V
3
2
P_R2
P_R3
P_R4
P_R5
P_R6
P_R7
P_G2
P_G3
P_G4
P_G5
P_G6
P_G7
P_B2
VPNLD
P_B3
P_B4
P_B5
P_B6
P_B7
VPNLD
GNDD
+ CL13
ECL2
0.1uF
RSTB
GNDD
CL34
0.1uF
GNDD
+5V_TFT
RL61
1K
3.9V
VCOM_D
ECL3
10U/10V/0805
RL28
3.9K
GNDD
GNDD
2
1
JL4
1
AGND2
PVAA
2
AVDD2
VPNLD
3
VDD
4
R0
5
R1
P_R2
6
R2
P_R3
7
R3
P_R4
8
R4
P_R5
9
R5
P_R6
10
R6
P_R7
11
R7
12
G0
13
G1
P_G2
14
G2
P_G3
15
G3
P_G4
16
G4
P_G5
17
G5
P_G6
18
G6
P_G7
19
G7
20
B0
21
B1
RL8 P_B2
22
B2
P_B3
23
B3
10K P_B4
24
B4
P_B5
25
B5
P_B6
26
B6
P_B7
27
B7
RL3 PCK1
28
DCLK
LP
29
DE
NC POL
30
HSYNC
CLKV
31
VSYNC
32
MODE3
RSTB
RL20 1K
33
RSTB
RL10 1K
34
STBYB
RL64 1K
35
SHLR
VPNLD
36
VDD
RL65 1K
37
UPDN
38
GND
39
AGND1
PVAA
40
AVDD1
VCOM_D
41
VCOMin
RL68 1K
42
DITH
RL69 1K
43
BIST
44
VCOM
VG10
45
V10
VG9
46
V9
VG8
47
V8
VG7
C56 48
V7
VG6
49
10uF/10V
V6
VG5
50
V5
VG4
51
V4
VG3
52
V3
GNDD VG2
53
V2
VG1
54
V1
55
NC
VGH
56
VGH
VPNLD
57
GVCC
VGL
58
VGL
59
GGND
60
CAP
61
GND
C57
62
GND
10uF/10V
AU070VW04
GNDD GNDD
For HSD 9' DIGITAL
800x480 panel
Standard 9' panel:
VGH=+15V/VGL=-7V
/AVDD=10V/VCC=3.3V
/VCOM=3.9V
1
D
C
B
A