LG RD-JT30 Service Manual page 171

5
Q112
D
SI4431DY-T1
F AN1-P
C
TP48 TP49 TP50
J17
8
THERMAL-BREAK
7
TP51
6
5
F AN1-E
4
F AN1-B
3
FAN1-P
2
1
20D0049108
TP53
TP52
TP56 TP57
P5V
B
J18
6
5
4
3
F AN2-P
2
1
20D0049106 TP58
TP59 TP60 TP61 TP62
J19
5
F AN1-E
4
F AN2-B
3
FAN3-P
2
1
20D0049105 TP63
A
5
4
P12V
R615 R616
2.2K 2.2K
4
R618 22K Q111 Q110
1 1
2N3904 2N3904
P5V
C602
1 0U Z
R617
R602 R603
10K 47 47 R614
4.7K
Q109 Q108
1 1
2N3904 2N3904
R604 R605
47 47
P5V
P5V
R611
10K
U202
2 4
FA NS PIN1
74V1G14S
C271
10U
R632 0
open
P5V
R612
10K
U203
2 4
FA NS PIN2
74V1G14S
R633 0
open
P5V
P5V
R613
10K
U204
2 4
FA NS PIN3
74V1G14S
0
R634
open
4
3
U43
14 15
SCL SMBCLK VCC
12 2
SDA SMBDATA VCC
3
DXP1
11
ALERT
ALERT
4
DXN
6
RESET
5
DXP2
1
OUT1
16
OUT2
10 13
FG1 FG2
7
GND
C268 9 8
CLK GND
0. 1U K
G768B
FA NCLK
R228 10K
FA NS PIN1 P5V
P12V
R229
16V
1K
Q105 R635
5.6K
4
SI4431DY-T1
R158
FA NS PIN3
R636 1K
47K
Q28 1 R235 1K
2N3904
F AN3-P
R236
C275
1 0U Z 1K
R245
1K
3
2
P5V
SI2315DS Q106
3 2
R637
C609
10K P12V
0. 1U K
10K
Q107 1 R638
FAN -SW
2N3904
R639 R220
680
10K
R631 5.6K
F AN1-B
R157
C263
0 R629
2200P K
F AN1-E
47K
C264
2200P K
F AN2-B
1K
R224 1 Q26
R225 10K 2N3904
P5V
FA NS PIN2
R227
C270 1K
R244
0.1U K 820
P5V
C272
R234 0. 1U K
10K
U45
1 8 FA N SW-LINE
OUT VCC
C610
2 7
F.G. SDA SDA
C276
3 6 0. 1U K
SCL
ON/OFF SCLK
0.1U K
4 5
FA NCLK
GND CLK
G760A
2
1
C262
10U
16V
Q104
4
SI4431DY-T1
F AN2-P
C269
10 U Z
P5V
U42
1 16
VDD NC
2 15
FA NCLK AR FR
3 14
A F
2M
R221 4 13
BR NC
R222 10M
5 12
B ER
6 11
CR E
Y6 7 10
C DR
8 9
VSS D
32.768KHZ
CD4049UBCM
C265 C266
10P J 10P J
Benq Corporation
Project Code Model Name OEM/ODM Model Name
N A
99.J5577.001 JT31
Title
MAIN BOARD
Size P C B R ev. Do cu ment Number
PC B P/N
<Size>
48.J5501.S02 S02
304-C01
Wed nesd ay, Nove mber 20, 2002
D a te: Sheet 15 o f 20
Pre pared By Re vi ewed By A p proved By
D A V I D HN L IN
A NGEL HU H.C . TSOU
1
D
C
B
A
R e v .
0