-53-
Chassis Block Diagrams
Q3601
D3621
D3622
SW901
LAMP
COVER
TEMP
LAMP
BALLAST
BOARD
K8N
K6M
K6L
FN903
FN904
FN905
1
2
1
2
1
2
D3623
D3626
K6K
K6J
FN901
FN902
1
2
1
2
3
8
6
7
2
1
2
1
IC7811
S15.5V
FAN_A
FAN_B
Q7812
TPFANA
Q7813
Q7811
3
8
6
7
IC7861
Q7862
Q7864
Q7861
Q7801
Q7844
P_FAIL
FAN_SW1
D3613
D3614
D3627
IC8821
TEMP.
SENSOR B
<LM76CH>
2
1
IC8811
TEMP.
SENSOR C
<LM76CH>
IC4831
TEMP.
SENSOR A
<MCP9801T>
MAIN
FAN_C
ON_B
FAN_C
ON_A
Power-On:H
IC4891
NAND
FAN_C
ON_C
1
2
4
215
P_FAIL_FAN
370
269
Q7804
FAN_SW2
Power-On:H
363
212, 293
Power Error: On
P_Fail: H
SIGNAL/MODE
POWER-ON
STAND-BY
H
L
NORMAL
ERROR
H
L
FAN_SW1
FAN_SW2
P_FAIL
P_FAIL_FAN
P_FAIL
Q3601
Power Error: On
P_Fail: H
FAN_ERR
TPFANB
K8S
K8H
K8H
185
3
1
4
4
BALAST_AC
D3628
K8G
FN907
1
2
FAN_C
3
8
6
7
IC7841
Q7842
Q7841
D3644
TPFANC
2
1
IC301
SC
ALER
<PW190>
P_FAIL_FAN
SCL0_33V
SDA0_33V
373
128
30
Fan control circuit
Summary of Contents for LC-XB42
Page 61: ...61 IC Block Diagrams FA7701 DDC Control IC5751 AN5870 Signal Switch IC5201...
Page 62: ...62 IC Block Diagrams FA7711 DC DC Converter IC5801 FA5502 P F Control IC601...
Page 65: ...65 IC Block Diagrams LM4889 Audio Output IC5031 NJW1156 Audio Control IC5001...
Page 66: ...66 IC Block Diagrams PW190 Scaler IC301 STR Z2156 Power OSC IC651...
Page 67: ...67 IC Block Diagrams TE7783 Parallel I O Expander IC1802...
Page 95: ......
Page 96: ...KG3BC April 2008 Japan 2008 Eiki Internatinal Inc A key to better communications...