[TechAssist] Re: Need refresher on RCA EEPROM replacing...]
- From: HSWAD@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 23 Jan 2003 14:02:49 EST
I have experimented both ways and there is no way to tune better than the
TAG001 generator. The results are much, much better. Hollis Bates
In a message dated 1/23/03 9:47:16 AM Eastern
Standard Time, ampm@xxxxxxx writes:
> Subj:[TechAssist] Re: Need refresher on RCA EEPROM replacing...]
> Date:1/23/03 9:47:16 AM Eastern Standard Time
> From:<A HREF="mailto:ampm@xxxxxxx";>ampm@xxxxxxx</A>
> Reply-to:<A
> HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> To:<A HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> Sent from the Internet
>
>
>
>
> Does that actually work Kevin? I was told it wouldn't work, that you need a
> generator to do the setup so you could vary the signal. never tried it that
> way.
> al marquardt
> ampm@xxxxxxx
>
>
> ----- Original Message -----
> From: "Kevin" <kevintv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, January 23, 2003 1:15 AM
> Subject: [TechAssist] Re: Need refresher on RCA EEPROM replacing...]
>
>
> >
> > Rf from Shaw cable.
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of al m
> > Sent: Wednesday, January 22, 2003 4:49 PM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] Re: Need refresher on RCA EEPROM replacing...]
> >
> >
> > Are you using Rf from the cable to adjust these tuners or a Rf
> > generator.
> > al marquardt
> > ampm@xxxxxxx
> >
> >
> > ----- Original Message -----
> > From: "Kevin" <kevintv@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, January 22, 2003 4:15 PM
> > Subject: [TechAssist] Re: Need refresher on RCA EEPROM replacing...]
> >
> >
> > >
> > > I can buy preprogrammed generic eeproms. The data is taken from a
> > > working set and may or may not work perfectly with a particular set.
> > I
> > > have used the PP ones many times and have found the tuner parameters
> > to
> > > be very close to the ones found in the bad eeprom. I have also found
> > > that if a set is dead because of the eeprom, then the procedure of
> > using
> > > the socket only works about half the time because all the data is
> > > corrupted.
> > >
> > > There also is a way to set the tuner parameters by monitoring pin 12
> > on
> > > LA7610. You then use the Electronic Tuner Alignment Parameters chart
> > to
> > > set the TV to each channel in the chart. Then you adjust the
> > parameter
> > > to the lowest voltage at pin 12. Watch the picture as well. I have
> > > used this method twice now as I don't repair enough RCA's to warrant
> > > buying a chipper checker.
> > >
> > > Kevin Wilks
> > > Kevin's TV & Video Repair
> > > Penticton BC Canada
> > > kevintv@xxxxxxx
> > >
> > >
> > > -----Original Message-----
> > > From: techassist-bounce@xxxxxxxxxxxxx
> > > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Phillip R. Hull
> > > Sent: Wednesday, January 22, 2003 12:52 PM
> > > To: techassist@xxxxxxxxxxxxx
> > > Subject: [TechAssist] Re: Need refresher on RCA EEPROM replacing...]
> > >
> > >
> > > Once and for all( I hope), these IC's are not preprogramed, they are
> > > set
> > > with average values, also the tuner will have to be realigned with
> > > Chipper
> > > Check, unless you can write down all the tuner parameters before
> > > replacing.
> > > Phillip R Hull STET
> > > phil245@xxxxxxxxxxxxx
> > > ----- Original Message -----
> > > From: "Kevin" <kevintv@xxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Wednesday, January 22, 2003 3:31 PM
> > > Subject: [TechAssist] Re: Need refresher on RCA EEPROM replacing...]
> > >
> > >
> > > >
> > > > Sometimes the data is corrupted. Then your only option is to get a
> > > > preprogrammed eeprom. They are available form Main Electronics in
> > > > Vancouver BC Canada. 250-872-0267 Ask for Mike or Daniel. You may
> > > > still have to adjust the tuner parameters to get a good picture on
> > all
> > > > channels.
> > > >
> > > > Kevin Wilks
> > > > Kevin's TV & Video Repair
> > > > Penticton BC Canada
> > > > kevintv@xxxxxxx
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: techassist-bounce@xxxxxxxxxxxxx
> > > > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Philip Bader
> > > > Sent: Wednesday, January 22, 2003 6:04 AM
> > > > To: techassist@xxxxxxxxxxxxx
> > > > Subject: [TechAssist] Re: Need refresher on RCA EEPROM replacing...]
> > > >
> > > >
> > > > Not to drag this on,but I remember trying this.Probably didn't do
> > the
> > > > right sequence,but all I managed to do was transfer the old corrupt
> > > > parameters to the new "blank" chip,so now I have two exact chips
> > with
> > > > corrupt data.
> > > > How does it transfer the "good" data without also the bad?
> > > > Phil Bader
> > > >
> > > > Jeff Dougherty wrote:
> > > > >
> > > > > Harlan,
> > > > > Place old EEPROM in socket, turn set on, replace old EEPROM with
> > new
> > > > one.
> > > > > I have had luck with ordering the correct EEPROM for the specific
> > > > chassis and all
> > > > > I have to adjust, if anything, is the horizontal freq.
> > > > > support@xxxxxxxxxxxxxxxxxx
> > > > > FAX 717-564-4952
> > > > > Jeff Dougherty
> > > > > Intrepid Video & Electronics Be careful of your thoughts.
> > > > > 501 Luther Rd They may become your words
> > > > > Harrisburg, PA 17111 any moment.
> > > > > 717-909-8844
> > > > > VCR tips, electronics info & general interest.
> > > > > www.intrepid-video.com www.tech-repair.net
> > > > > www.thetoolcaddy.com www.9-11-2001tragedy.com
> > > > >
> > > >
> > >
> > ***********************************************************************
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Tuesday, January 21, 2003 10:57 AM
> > > > > Subject: [TechAssist] Need refresher on RCA EEPROM replacing...]
> > > > >
> > > > > I forwarded this to the group for a tech. PLease help.
> > > > > Phil Bader
> > > > > Hi,
> > > > > Have here an RCA CTC 177 and suspect bad eeprom chip as the set
> > > will
> > > > > not power on and have check all the ususal "stuff" ... standby
> > > > > supplies, etc.
> > > > >
> > > > > Question is... was there a procedure when putting in the new
> > eeprom
> > > > > where you put in a socket also and then can extract the parameters
> > > > > yet from the "bad" one so as not to have to do an entire
> > alignment?
> > > > >
> > > > > If there is such a process, what were the steps?
> > > > >
> > > > > Thanks,
> > > > > Harlan
> > > > >
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> > > > Philip Bader
> > > > Jan Phyl TV Inc. (estab. 1976)
> > > > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > > > Fax (863) 299-8821
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