No Power (Fan Control) - Eiki Lc-XL200 Service Manual

Troubleshooting

No Power (Fan control)

5
4
Q7784
12
IC7801
DAC
FAN
CONTROL
7
<M62393>
15
14
13
6
2, 3
Check that the FAN_DRIVE
and FAN_DRIVE_B signals
are correct.
Power-on: High
S16V
Q7721
Q7782
8 6
IC7721
FAN_ENB1
3
FAN_CONT2
Q7701
Q7783
8 6
IC7701
FAN_ENB3
3
FAN_CONT1
1
IC7881
2
FAN_CONT3
Q7781
1
IC7921
2
FAN_CONT4
Q7921
1
IC7821
2
FAN_CONT5
Q7821
IC7802
2
AND
1
IC7841
4
1
2
FAN_CONT6
Q7841
1
IC7861
2
FAN_CONT7
Q7861
137
FAN_DRIVE
PW_SCL0_S5V PW_SCL0
PW_SDA0
PW_SDA0_S5V
FN902
FN903
FN904
FN905
FN901
TPFN6
L7721
Q7722
PF_FN906
TPFN11
L7701
Q7702
PF_FN909
TPFN4
3
PF_FN904
4
TPFN2
3
PF_FN902
4
TPFN1
3
PF_FN901
4
TPFN3
3
PF_FN903
4
TPFN5
3
PF_FN905
4
IC5201
FPGA
PRESS-SENS
<XC3S50A>
<HSPPAR003>
IC301 281
PRESS_SENS
SYSTEM CONTROL
<PW392> 68
WINDS_SENS
-68-
Check that the Fan
voltage is correct on
each fan.
K78F
FN906
(PANEL)
K78G
FN907
(PANEL)
K78H
FN908
(PANEL)
Q7792
K78L
FN911
(PANEL)
K78K
FN910
(PANEL)
K78J
FN909
(PANEL)
Q7793
K78D
FN904
Q7891
(LAMP)
K78E
FN902
Q7942
(PBS)
K78A
FN901
Q7842
(POWER)
K78B
FN903
Q7843
(LAMP)
K78C
FN905
Q7794
(EXHAUST)
Check that the Fan Lock
s i g n a l i s c o r re c t o n
each fan.
IC886
Error: High
S901
WIND SENSOR
K8C
FN908
FN910
FN909
FN906
FN907
FN911