[TechAssist] Re: RCA CTC187CL horz freq shift causing shutdown
- From: Jorge Camboni <geo@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 27 Aug 2003 14:46:09 -0500
1) the horizontal shift is probably caused by a corrupted eeprom
2) if you want it to stay on so as you can correct the hor freq
from the service menu, solder another 1,6kv capacitor
(don't rememember value - from .0135 to .0168 mf -depends
on the model) in paralell. That should give you a narrower
but stable raster.
3) There is a chance that the original 1,6 kv cap is bad..
in this case paralelling will fix it at once..
HTH
Jorge
At 09:44 p.m. 23/08/03 +0000, you wrote:
>RCA CTC187CL
>in 31"
>
> Sorry for the obscure post, but rembered this one just
>after I left the shop this afternoon. It appears that the horizontal
>frequency is shifted causing possibly excessive high voltage and
>shutdown---- this is a qualitative assesment by ear, also the screen is
>keeping a pretty good charge that is slow to bleed off. Is there a way to
>shift the frequency so that the set will turn on without replacing or
>initializing the eeprom?. Set will stay on with the horizontal yoke plug
>pulled Tuner has been repaired and horz drive connections reworked too.
>
>
>Peter Oliver
>Tucson Radio TV
>
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Jorge Camboni, GY Electronics, Richardson, TX
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