Schematic; Main Board - Lenovo L172 Service Manual

17" LCD Color Monitor

6. Schematic

6.1 Main Board

715G1767- 1
VGA-SCL
VGA-SCL
VGA-SDA
VGA-SDA
GND_A
U405
24C02
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCLK
4 5
GND SDA
GND_A
R441
220 1/16W
15
VS
14
HS
ZD407 13
UDZS5.6B
12
11
GND_A
DB15
R440
220 1/16W
ZD404
UDZS5.6B
GND_A
D416
BAV70
VGA-5V
4.7K 1/16W
R478
+5V
C446
0.1uF/16V
R479 R476
4.7K 1/16W
10K 1/16W
24C02_WP
VGA-SCL
VGA-SDA
VGA-5V
R416
CN405 0 1/16W
DB15
R426
10 1K
5
9
4
8
3 B1 ZD405
7 UDZS5.6B ZD414
2 G1 UDZS5.6B
6
1 R1
GND_A
GND_A
GND_A
ZD406 ZD403
UDZS5.6B UDZS5.6B
C433
NC
GND_A GND_A
R406
100 1/16W
VS
VSIN
ZD401 R435 C402
UDZS5.6B 2.2K 1/16W 0.001uF
GND_A GND_A GND_A
R405
100 1/16W
HS
HSIN
ZD402 R436 C430
UDZS5.6B 2.2K 1/16W 22pF
GND_A GND_A GND_A
16
C409
0.1uF/16V
GND_A
1/16W
D406 GND_A
VGA-DET
BAV99
FB401
0 1/16W
B1
R455 CH201209T-300
75 1/16W
FB402
GND_A 0 1/16W
M_TXD
M_RXD
C410
0.1uF/16V
C434 GND_A
NC
FB403
D405 0 1/16W
G1 BAV99
CH201209T-300
R454
75 1/16W
FB406
GND_A 0 1/16W
C411
0.1uF/16V
GND_A
FB404
D404 0 1/16W
R1 BAV99
R456 CH201209T-300
75 1/16W
FB405
GND_A 0 1/16W
Title
715G1767-1
Size Document Number
A4
ADC Input
Date: Friday, January 06, 2006
Lenovo L172
+5V
R496
1K 1/16W
ZD412
UDZS5.6B
BI1
C451
NC
BI1-
GI1
C452
NC
GI1-
RI1
C453
NC
RI1-
Rev
0.1
Sheet 1 of 5