Troubleshooting Procedures By Ass'y - Samsung CL-21M21MQ Service Manual

Troubleshooting

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
Yes
FUSE "FP801S"
Yes
Change "FP801S"
Yes
Compleat
Repair No Power
6-3-2 No Picture(2nd Power)
No picture
(1st power OK)
Check the +125V line
No
"D811"(D811A) open
and check
No
Change the "D811"
(D811A)
Compleat
repair no picture
6-4
Check the
Yes
"D801S" #1
No
Change "D801S"
Yes
Yes
T444 B+ Pin #3
Open and check
No
Check the "Q401"
No
Change the "Q401"
Check the
Yes
IC801S #1
W6750F
No
Change "IC801S"
Check the others
B+ line
Yes
Check IC501 Pin#6
No
Yes
Change IC501
Check the others part
Yes
Change IC201
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