[TechAssist] Re: rca ctc185AA
- From: Frank Luu <fkluu@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 8 Jan 2002 06:09:43 -0800 (PST)
Ken:
Thanks for your info, I'm learning new things
everyday... I went thru this problem before, on CTC
185 25" and 27" only,I ordered eprom from different
company and ,eventually, there was one that work. To
today, I still don't know why and have no good answer
to it.
Good day
Frank
--- gulftech@xxxxxxxx wrote:
>
> Frank,
>
> By very nature, an EPROM is an Eraseable
> Programmable Read Only Memory.
> The pre-programmed variety has "normal" values
> stored which make them
> faster to use, especially with the tuner parameters.
> They still may have
> to be "adjusted," especially vertical size or
> horizontal frequency. I
> use the pre-programmed EEPROMS 90% of the time and
> have had no trouble
> changing register contents.
>
> What may be missing or corrupt is the clock pulse on
> pin 6, but I don't
> know enough to address that issue and have never had
> the problem. Pin 5
> is the serial data used both to address and read
> content. I don't know
> that can work and the training manuals I have don't
> explain its
> operation.
>
> I will be very interested to hear other comments on
> this issue and to
> hear the solution.
>
>
> Ken Smith
> Gulf Technical Services
> 3034 Gulf Breeze Parkway
> Gulf Breeze, FL 32561
> 850-934-8324 (Voice) 850-932-0819 (Fax)
>
> ----------------
>
>
> On Mon, 7 Jan 2002 14:54:40 -0800 (PST) Frank Luu
> <fkluu@xxxxxxxxx>
> writes:
> >
> > some of the eproms is pre-program which you can
> not be
> > changed.( I guess you try to adjust vertical size)
> You
> > may order an eprom from different sources.
> > Frank
> >
> > --- Rafael Gallegos <gallegra@xxxxxxxxxxxxxxxx>
> wrote:
> > >
> > > When setting parameters in new eprom this tv
> does
> > > not hold the new
> > > values it gets back to the old settings. try
> pushing
> > > power button after
> > > setting new values but tv goes back to original
> > > settings.
> > > Does anyone has experienced this problem?
> > > any help appreciated.
> > >
> > > Thanks
> > >
> > > Rafael Gallegos
> > > Lead electronics technician
> > > Rockford corp.
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