BenQ Q7T4-FP71G, Service Manual

Page: 58 / 66

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
L ED_ORG
LE D_GRN
D SUB_SDA
3.3V_MCU
+2.5V
3.3V_MCU
3.3V_MCU
3.3V_MCU
3.3V_MCU
3.3V_MCU
3.3V_MCU
3.3V_MCU
3.3V_MCU
+5V
3.3V_MCU
3.3V_MCU
L ED_ORG
LE D_GRN
SDA
SCL
KEY_LEFT
K EY_RIGHT
K EY_MENU
I- KEY
PW _SW
KEY_EXIT
SCL
RESET
RTD_SDO/SDI
SDIO1
SDIO2
SDIO3
RTD_SCLK
A-detect
DSUB_SCL
L ED_ORG
LE D_GRN
RTD_RESET
RTD_SCSB
PANEL_ON
KEY_EXIT
KEY_LEFT
VOL_ON
BL_ON
I- KEY
PW _SW
KE Y_MENU
K EY_RIGHT
D-detect
BRT_ADJ
VOL_ADJ
VOL_ON
BL_ON
DDC_ WP_D
DD C_WP_A
SDA
DDC_ WP_D
DDC _WP_A
Title
Size Document Number R e v.
Date: Sheet o f
Project Code
R eviewed By Ap proved By Prepared By
Model Name
P CB P/N PCB Rev.
OEM/ODM Model Name
99.L1C72.000-C3-304-001
INTERFACE BOARD
3 6
ALLEN PC LEE DAV EN WU
48.L1C01.S02 S02
AN GEL HU
<Size>
Q7T4
99.L1C72.001
1
Thursday, July 29, 2004
NA
GMT
**C50 close to scaler, R43 close to MCU.
delete RN4,RN5,RN6,RN8;
Q1,R44,C49,R46,R47
TP29
U4
AT24C04N-10SI-2.7
A0
1
A1
2
A2
3
GND
4
VCC
8
WP
7
SCL
6
SDA
5
C 70
100P
50V J
C 51 6.8P J
Q3
2N3906
3
2
1
C 52
0.1U
R
N
3
4
.7
K
1 2 3 4
8 7 6 5
J3
2072060206
1
1
3
3
5
5
7
7
9
9
11
11
2
2
4
4
6
6
8
8
10
10
12
12
TP27
C 64
220P J
C 60
0 .1U
R 50 10K
C 67
100P
50V J
C 53
0.1U
L11
C 68
100P
50V J
R 52 0
C 59
0 .1U
R 49 220
+ C 56
22U 25V
1
2
SOCKET P/N: 22.10079.044
U5
MTV312MV64
D
A
2/
P
5.
2
1
D
A
1/
P
5.
1
2
D
A
0/
P
5.
0
3
V
D
D
3
4
N
C
5
N
C
6
RST
7
VSS
10
X2
11
X1
12
ISDA/P3.4/T0
13
ISCL/P3.5/T1
14
STOUT/P4.2
15
P6.2/AD2/HLFHI
16
P1.0
17
P
1.
1
18
P
3.
2/
IN
T
0
19
P
1.
2
20
P
1.
3
21
P
1.
4
22
P
1.
5
23
P
1.
6
24
P
1.
7
25
P
6.
1/
A
D
1
26
P
6.
0/
A
D
0
27
H
S
D
A
/P
3.
1/
T
xd
28
HSCL/P3.0/Rxd
29
P6.4/DA10
30
P6.5/DA11
31
P6.6/DA12
32
DA6/P5.6
34
DA7/HCLAMP
35
VBLANK/P4.0
36
HBLANK/P4.1
37
DA9/HALFV
38
DA8/HLFHO
39
D
A
5/
P
5.
5
40
D
A
4/
P
5.
4
41
D
A
3/
P
5.
3
42
H
S
Y
N
C
43
V
S
Y
N
C
44
P6.7/DA13
33
VDD
8
P6.3/AD3
9
C 65
0 .1U
TP31
TP32
R 53 1K
TP35
C 58
0 .1U
C 61
0 .1U
TP34
C 66
0 .1U
R 55 1K
C 48
0.22U K
R 45 4.7K
R 58 1K
TP26
R 43
4.7K
R 56 1K
C 54
100P
50V J
+ C 57
22U 25V
1
2
TP25
R 51 220
L4
Z30
R 57 1K
TP38
C 47
0 .1U
Y2
12MHZ
C 63
0 .1U
TP39
C 69
100P
50V J
R
N
7
4
.7
K
1 2 3 4
8 7 6 5
TP30
C 55
100P
50V J
C 62
0.1U
TP28
TP33
C 50 6.8P J
R 42
4.7K
TP37
L5
220 OHM
L6
R 54 1K
L10
C 71
100P
50V J
TP36
TP40
R 68
4.7K
Q2
2N3906
3
2
1
L8
J4
2060091109
1
2
3
4
5
6
7
8
9
R 48 10K
L7
L9
U6
G950T65U
G
N
D
2
VOUT
3
VIN
1
G
N
D
G
1
C 72
100P
50V J