Troubleshooting - Sanyo PLV-55WHD1 Service Manual

■ Troubleshooting

● No Power
This LCD projection TV provides a function which can be specified a defective area simply by indicating the LEDs
on the front panel. Connect the AC cord and press the Power button once and then check the LED indication.
● LED Indicators and Error Conditions
POWER POWER
(RED) (GREEN)
OFF OFF
OFF OFF
BLINK
OFF
--> EMIT
BLINK
OFF
--> OFF
--- EMIT
● Troubled parts in primary circuit and Check points
Circuit Unit
Primary
Power Board
Circuit
WARNING LAMP
(RED) REPLACE
OFF OFF
EMIT OFF
OFF OFF
BLINK OFF
--- EMIT
Troubled Location Error Condition
C616 Power shut down
C619 Power shut down
C655 Power shut down
C656 Power shut down
DB611 Power shut down
D611 Power shut down
D651 Power shut down
D671 Power shut down
IC641 Power shut down
IC651 Power shut down
L613 Power shut down
Q611 Power shut down
T641 Power shut down
T651 Power shut down
ERROR CONDITION
Power failure
(Primary circuit)
Power failure
(Secondary circuit)
Lamp failure,
Temperature failure
Temperature failure
Lamp Lifetime
-95-
CHECK POINT
AC cord, Fuse, Varistor,
Power board
(See below table)
P_Fail or P_Fail_PNL signal,
Fan lock signal,
Connectors
Lamp Ballast Unit
SW1861 (Lamp cover SW)
SW902 (Thermal SW)
Cooling down
Lamp replacement
Check Points
F601
F601,D619
R651
IC651,F651
F601
F601,Q611
R651
IC641
F619,R641
C659,C661,C662,D653,F651,
Q646,Q661,R652,R653,R654
F601,Q611
D612,F601,Q621,R618
IC641
IC651,F651