Panasonic TV Model CT-27SL13G, Odd Symptom
Hi,
In my service shop, I have a Panasonic TV model CT-27SL13G (mfg 07/03)
with an odd symptom. The picture is about 6 inches high (black on top and
bottom), but it is "warped" with a wavy edge (top & bottom).
I checked electroylitics in vert. circuit. Regulated B+ is 130V, there
is +27V at pin 2 (VCC) of IC451 (AN5522). I scoped pin 2 looking for
excessive ripple, but found around 2V P-P ripple. I "rang" the yoke with a
yoke tester (ok) even though I didn't think it is the cause. I replaced
IC451 (AN5522), but the problem remains. It may be a problem in the yoke
return (I have no schematic)? Did you have a problem like this?
Thanks in advance, Brad
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Relevant Pages
- UPDATE: Panasonic TV Model CT-27SL13G, Odd Symptom
... I can't remember how long it has been since I saw a yoke with an open ... winding, but one of the two vertical ... bottom), but it is "warped" with a wavy edge. ... excessive ripple, but found around 2V P-P ripple. ...
(sci.electronics.repair) - Re: OT: Important Sartorial Question
... >the backs of shirts, usually at the bottom of the yoke, but sometimes ...
(uk.rec.motorcycles) - Re: TECH: fun with Yokes
... So as a fun project and experiment, I decided to try and make an XY yoke:) ... connection board so it matched the amplifone yoke, ... the bottom and finished at the top. ... extra windings based on the difference in surface area. ...
(rec.games.video.arcade.collecting) - Re: TECH: fun with Yokes
... So as a fun project and experiment, I decided to try and make an XY yoke:) ... connection board so it matched the amplifone yoke, ie. one side started winding at the top and finished at the bottom, the other side started at ... the bottom and finished at the top. ... extra windings based on the difference in surface area. ...
(rec.games.video.arcade.collecting) - TECH: fun with Yokes
... So as a fun project and experiment, I decided to try and make an XY yoke:) ... connection board so it matched the amplifone yoke, ... the bottom and finished at the top. ... extra windings based on the difference in surface area. ...
(rec.games.video.arcade.collecting) |
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