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Chassis Block Diagrams
Fan control circuit
15.5V
174
POWER_FAIL
BUS
44
M_SCLK1
M_SDA1
115
7
Q7911
IC7911
8
7
Q7861
IC7861
8
Q7801
P_FAIL
Power-On:H
6
IC7961
19
D/A
<M62393>
2,3
P_SCLK1
Q1841/Q1842
P_SDA1
IC4852
Fan Error: L
AND
1
FAN_ERR
4
20
2
LAMP_POW
TPFANC
Q7912
FAN_C
6
D3616
3
Q7914
TPFANB
Q7862
FAN_B
D3614
6
3
Q7864
FAN_ERR
P_Fail: L
Q3601
Power Error: On
SIGNAL/MODE
POWER-ON
FAN_SW1
H
NORMAL
P_FAIL
5
H
IC8811
IC8821
TEMP.
TEMP.
SENSOR1
SENSOR2
<LM76CH>
<LM76CH>
2
1
2
7
12
2
-36-
FN906
K6K
1
2
D3623
FN905
K6M
1
2
D3622
FN904
K6L
1
2
D3621
FN902
K8P
1
2
P_Fail: H
D3624
FN903
K8N
1
2
D3627
FN901
K6J
1
2
D3626
STAND-BY
L
ERROR
L
IC8831
TEMP.
SENSOR3
<LM76CH>
1
2
1
K8H
1
MAIN BOARD
1
K8S
3
SW901
LAMP COVER
SW
LAMP
BALLAST
UNIT
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