Poor Focus - Sony D98 chassis Operation Manual

Age monitor and
check for focus
change
No
6
(See Parts Level Board
Repair section)

POOR FOCUS

E
Adjust focus
VRs on FBT
Yes
Improved
focus?
No
Check focus leads
from FBT to CRT
socket
Check video bond CRT
socket
Is dynamic focus
circuit OK ?
Yes
Replace CRT
and verify
focus
Done
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