Sanyo MS6A Service Manual page 36

Troubleshooting
Power supply drive and protection diagrams and locations
F601
SW902
Fuse
AC IN Interlock sw.
Thermal sw.
Fan Control
15.5V
1
K6J
2
6V
1
K6K
-6V
K6M
2
K6L
Q661
FAN DRIVE1
POWER BOARD
SW902
F601
SW904
P.F BOARD
SW904
TSW611
IC611
P.F.CONTROL
K6E
1 4 7
1 4 7
K6F
K6S
Power
Oscillator
Circuit
Failure: Low
P-FAIL
On: High
15.5V
K6S
On: High
5V_SW
On: High
IC4881
LAMP BALLAST UNIT
1 1
CB1
K6D
3 3
CB2
1 3
FN905
FN906
1 3 1
K8B
K8N
37-38 K8P
K8S
LAMP_ERR
P-FAIL
13-14
9-10 LAMP_BST_SW1
K8S
LAMP
LAMP_SW1
BALAST_AC1
5V_SW
15-16
FAN DRIVE1
11-12
MAIN BOARD
-36-
IC2881
LAMP Ass'y
IC4881
TEMP. SENS.
1
3
2
5
K48E
TEMP. SENSOR
BOARD
2 3 5
K8E
Failure: High
IC2881
TEMP.SENSOR
1
2
47 80 81
Failure: Low
48
IC1871
BUFFER
On: High
18 2 82
IC801
IC1881
BUFFER SUB CPU
On: Low
12 8 3
9 39
11
On: High
17
3 1
On: High
5 15 41