[TechAssist] Re: EEPROM programmer
- From: Randall Torda <lectrics284@xxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 9 Jun 2005 17:51:16 -1000
oops,
Girldfriend gave a parrot yell that
made me not to click for signature file.
Autolectrics
Randall Torda
284 Makua Street
Wailuku, HI 96793
808-244-3064
On Thu, 9 Jun 2005 17:32:34 -1000 Randall Torda <lectrics284@xxxxxxxx>
writes:
> John,
>
> I have breadboaded a simple EPROM programmer
> using Radio Shack parts and and old serial DB9
> computer cable. The circuit consist of only two
> 4.7 zeners, couple caps, couple resistors, and one
> 78L05 regulator. The programmer is only for
> 24CXX serial eproms. The pony programmer can
> be downloaded at: http://www.lancos.com.
> The circuits that they show for breadboading are
> a little more complex. I've tried the one that uses
> the parallel port...but I could never get to work
> properly, so I breadboaded one using my simple
> circuit using the serial port.. I use it to copy, verify or load
> EPROM
> data. You can even edit program data. You
> can save the data in e2p, hex,bin etc if you want
> to use other eprom software.
> I don't have any schematic producing software
> to make it look nice so I have to draw it out manually, scan it and
> send
> it
> to you and if anybody wants to try it then I'll upload it.
>
>
>
> On Thu, 09 Jun 2005 21:32:15 -0400 "John @ Myers TV "
> <myers_tv_b@xxxxxxxxxxxxx> writes:
> > Hi Bruce,
> >
> > I was thinking of the name Pony, but I wasn't sure if it was a
> brand
> >
> > name, or not. I'm probably going to use it on just 8 pin dips, so
> > I'll
> > start looking for the pony programmer.
> > I also have the CC, and I've also learned to take its advice with
> a
> > grain of salt.
> >
> > Thanks,
> >
> > John Myers
> > Myers TV Service Co.
> > 376 E. State St.
> > Alliance, OH 44601
> >
> > Voice / Fax: 330-821-6545
> > Myers_tv_b@xxxxxxxxxxxxx
> > http://www.myerstv.net
> >
> > Work as if you were to live a hundred years,
> > Pray as if you were to die tomorrow.
> > Ben Franklin
> >
> >
> >
> >
> > Bruce Tiedeman wrote:
> >
> > >John , I have a CC that is 3 years old and a cheap little Pony
> > style
> > >programmer. I have fixed difficult problems with my CC. On the
> > other hand it
> > >cost me a lot of wasted time. I had a RCA 35" TV with a Gemstar
> > module and
> > >every thing pointed to the EPROM. I used the CC to check and
> reset
> > the EPROM
> > >to factory setting which it did and confirmed EPROM OK.. I still
> > had the
> > >problem. After spending a lot of time checking other things I
> took
> > apart
> > >another set (RCA 27'") with a Gemstar module and copied the EPROM
>
> > data with
> > >my cheap little unit and then wrote the data to the problem set .
>
> > This fixed
> > >the set. I just had to go into the service mode and set up the
> > vertical and
> > >horiz scan for the new eprom.
> > >"The original problem if I can remember was the set would stay on
>
> > one
> > >channel after running the auto programming and the picture was
> off
> > frequency
> > >like a AFT problem."
> > >I still don't have confidence in my CC but the little Pony unit
> > always works
> > >good on the 8 pin EPROM's and many Techs on our list have the
> EPROM
> > data for
> > >different sets they will share.. The Pony unit will do most any 8
>
> > pin EPROM
> > >unlike the RCA CC (Chipper Check) unit.
> > >
> > >Bruce
> > >
> > >B&T Electronics
> > >139 Margaret St
> > >Sarnia Ontario
> > >Canada
> > >N7T 2Y3
> > >519 344 1850
> > >
> > >----- Original Message -----
> > >From: "John @ Myers TV" <myers_tv_b@xxxxxxxxxxxxx>
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Sent: Thursday, June 09, 2005 3:27 PM
> > >Subject: [TechAssist] EEPROM programmer
> > >
> > >
> > >
> > >
> > >>Hi,
> > >>
> > >>I remember reading a post, maybe a year ago about EEPROM
> > programmers. I
> > >>didn't buy one then, but I'm ready to spend the bucks now.
> > >>Is there a programmer that you like, or would reccomend? I'm
> > planning to
> > >>use
> > >>it on the 8 pin dips from the RCA's and the Magnavoxes.
> > >>
> > >>Thanks,
> > >>
> > >>John Myers
> > >>Myers TV Service Co.
> > >>376 E. State St.
> > >>Alliance, OH 44601
> > >>
> > >>Voice / Fax: 330-821-6545
> > >>Myers_tv_b@xxxxxxxxxxxxx
> > >>http://www.myerstv.net
> > >>
> > >>Work as if you were to live a hundred years,
> > >>Pray as if you were to die tomorrow.
> > >> Ben Franklin
> > >>
> >
>
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