Help- with JVC 32" CTV

[EGuy]

Have a JVC model AV32120. Problem with secondary voltages. Doesn't switch
on. Any leads would be appreciated. Changed STR6626 and 1000mfd 35V. No
change.
Thanx in advance

 

[Robert]

First, STR-F6626 must be OEM.

Robert

 

[Leonard Caillouet]

Not true at all. We fix these sets with "generic" ICs all the time. I have
compared several "originals" from JVC with the generic ones and found no
differences at all in operating parameters including temperature. You have
to be very thorough in troubleshooting these power supplies, but there is
not a problem with using generic STR-F6626 ICs from a reputable supplier.

Leonard

 

[JVC Dude]

I had a similar model (UK) that wouldn't strike up, and turned out to be a
small diode in the primary circuit.
AW

 

[Leonard Caillouet]

Like I said, you have to be thorough in troubleshooting these. It is my
experience that when the chip is not switching at all, it is likely bad,
along with the diode(s) in the primary. But then we get more lightning here
than in most areas and these ICs seem to fail with a sneeze...in cases
without surges there may be more common failure modes in these power
supplies.

Leonard