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Chassis Block diagrams
Fan control circuit
S15.5V
328
POWER_FAIL
Power-On:H
269
FAN_SW1
71
PWM_120HZ
158,285,134
SCL0
SDA0
7
Q7811
IC7811
8
7
Q7861
IC7861
8
1
Q7801
IC3571
D/A
<M62334>
7
7
SCL0_5
IC1571
SDA0_5
TPFANA
Q7812
FANA
6
D3613
3
Q7813
TPFANB
Q7862
FANB
6
D3614
3
Q7864
Q3601
P_FAIL
FAN_ERR
Power Error: On
SIGNAL/MODE
2
POWER-ON
FAN_SW1
P_FAIL
IC4891
NAND
1
2
IC8811
IC8821
TEMP.
TEMP.
SENSOR3
SENSOR2
<LM76CH>
<LM76CH>
2
1
2
1
-43-
K6L
1
2
D3621
K6M
1
2
D3622
K8P
1
2
D3624
D5621
K6K
1
2
D3623
K6J
1
2
D3626
K8N
1
2
D3627
P_Fail: H
STAND-BY
H
L
NORMAL
ERROR
H
L
LINE
FILTER
BOARD
K8S
4
SW901
3
1
IC8831
LAMP
TEMP.
BALLAST
1
K8H
SENSOR1
BOARD
<LM76CH>
2
1
MAIN BOARD
FN904
FN903
FN906
FN901
FN902
FN905
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