h-hold out in sony tv

Status
Not open for further replies.
N

niroshwasantha

Junior Member level 3
Joined
Apr 19, 2012
Messages
26
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,423
sony kv tg21m16 tv and there h-hold goes h-hold is out. any bpdy give hep
 

Most sets use "flywheel sync" for the line oscillator. An oscillator frees runs at below line frequency and is reset by the regenerated sync pulse from the incoming video.
So is the free running frequency too far out? - I have a set which will not lock up if its very cold, but when the room is warm it is no problem.
Are the sync pulses missing? If it has an IC sync detector, they have an input from the line output circuit to compare with the syncs from from the video, has this path gone O/C?
Frank
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…