[TechAssist] Re: Fixed: RCA CTC187CL horz freq shift causing shutdown

Smart guy !
Jorge


At 04:22 a.m. 30/08/03 +0000, you wrote:
>Replaced the EEprom, it was only $2.50 since I was ordering other parts.
>That fixed it...deciced it was easier than fighing with the caps and worring
>about latent damage to the old eeprom.
>
>Peter Oliver
>Tucson Radio TV
>
>
>From: Jorge Camboni <geo@xxxxxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: techassist@xxxxxxxxxxxxx
>Subject: [TechAssist] Re: RCA CTC187CL horz freq shift causing shutdown
>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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Jorge Camboni, GY Electronics, Richardson, TX

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