Fan Control Stage - Sanyo PLC-WTC500AL Service Manual

Chassis Description

Fan control stage

FAN_DRIVE_0_OUT
5
FAN_CONT6
6
FAN_CONT7
IC7971
DAC 7
FAN_CONT8
FAN
CONTROL
<M62393>
4
FAN_CONT5
15
FAN_CONT4
14
FAN_CONT3
FAN_DRIVE_2_OUT
13
FAN_CONT2
12
FAN_CONT1
2, 3
FAN_DRIVE_0_OUT
IC1871
FAN_DRIVE_1_OUT
18
SCL0_S5V
SDA0_S5V
2
2
6
5
3
IC1877
51
IC4801
I/O EXPANDER
<TE7783>
FN906
FN904
FN902
FN901
FN905
S16V
Q7791 Q7792
8 6
IC7701
3
Q7793
8 6
IC7731
3
Q7794
8 6
IC7761
3
1
IC7811
Q7921
1
IC7841
Q7841
1
IC7861
Q7861
1
IC7881
Q7881
1
IC7891
Q7891
1
3
FAN_PWM
5
SCL0_S3.3V
SDA0_S3.3V
354
27
FAN_DRIVE_1
23
FAN_DRIVE_2
IC301
IC5201
SYSTEM
FPGA
CONTROL
<XC3S50A>
<PW392>
281
68
Q7701
L7701
FAN_SPEED6
Q7702
FAN_PWM_6
Q7731
L7731
FAN_SPEED7
Q7732
FAN_PWM_7
Q7761
L7761
FAN_SPEED8
Q7762
FAN_PWM_8
3
FAN_SPEED5
4 2
3
FAN_SPEED4
4 2
3
FAN_SPEED3
4 2
3
FAN_SPEED2
4 2
3
FAN_SPEED1
4 2
IC7991
12
FAN_PWM6
10
FAN_PWM7
8
FAN_PWM8
9
114 8
FAN_MTR6
3 10 11
IC7951
FAN_MTR7
62 12 13
FAN_MTR8
63 2 1
FAN_MTR5
4 4 3
FAN_MTR4
IC8861/IC8872
157 12 IC7921 13
FAN_MTR3
PRESS-SENS
159 10 11
FAN_MTR2
115 8 9
FAN_MTR1
PRESS_SENS
WIND_SENS
-80-
FN906
TPFN6
PANEL R
K8H
1
2
3
FN907
TPFN7
PANEL G
K8J
1
2
3
FN908
TPFN8
PANEL B
K8K
1
2
3
TP_FN5
43,
K8G
K67F
44
45
TP_FN4
37,
K67E
38
39
TP_FN3
31,
K67D
32
33
TP_FN2
9,
K67C
10
11
TP_FN1
3,
K67B
4
5
K67A
REAR
JUNCTION
S901
K8L
FN908
FN907
FN903
FN905
INTAKE
BOTTOM
FN904
INTAKE
TOP
FN903
EXHAUST
LAMP2
FN902
EXHAUST
POWER
FN901
EXHAUST
LAMP1