Samsung CL29K40MQ, Service Manual

Page: 7 / 85

Troubleshooting
6-4 Samsung Electronics
6-3 Troubleshooting Procedures by ASS'Y
6-3-1 No Power (1st Power)
No Picture & No Sound
Check the AC
voltage impress
Check the master
switch on
Check the
FUSE “FP801S”
Check the
“D801S” #1
Yes
Check the
IC801S #1
W6750F
Change “FP801S”
Compleat
Repair No Power
Yes
Change “D801S”
No
Yes
Yes
Change “IC801S”
No
Yes
Check the others part
6-3-2 No Picture(2nd Power)
No picture
(1st power OK)
Check the +125V line
T444 B+ Pin #3
Open and check
Check the others
B+ line
Yes
No
Check the “Q401”
Yes
Compleat
repair no picture
Change the “Q401”
No
Yes
“D811”(D811A) open
and check
No
Change the “D811”
(D811A)
Yes
No
Check IC501 Pin#6
Yes
Change IC201
Change IC501
No