Samsung SV-4000W Service Manual page 60

Samsung Electronics
RF video missing in EE mode
Check
tuner IF
Yes
Q401-C
Check IF signal
Yes
IC401-13,7
Check EE video
Yes
Q406-C
Check EE
video
Yes
See page 5-16
Video missing in EE mode
No
Check RF converter
See page 5-30
Tunning in operative
No
Check Q401
No
Check FL401,TL401
IC401
No
Check Q406
Troubleshooting
5-31