[TechAssist] Re: EEPROM programmer
- From: Randall Torda <lectrics284@xxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 10 Jun 2005 08:18:37 -1000
John,
I'm on a 5-day vacation and will
be back on Sunday nite. I had to
sneak to check my e-mail. As soon
as I get back I'll draft out the schematic
and send it to you.
Autolectrics
Randall Torda
284 Makua Street
Wailuku, HI 96793
808-244-3064
On Fri, 10 Jun 2005 07:10:04 -0400 "John @ Myers TV"
<myers_tv_b@xxxxxxxxxxxxx> writes:
> Randall,
>
> Yes, if you have a schematic, I'd be interested in it. I did some
> surfing
> and forund the lancOS site last evening. the hardware doesn`'t look
> too hard
> at all.
>
> 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
> ----- Original Message -----
> From: "Randall Torda" <lectrics284@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, June 09, 2005 11:32 PM
> Subject: [TechAssist] Re: EEPROM programmer
>
>
> > 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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