cd100 eprom needed

[mb9513]

Hi all. working on cd100 f.  it comes up with eprom error.  i have ordered a replacement memory battery to start.  the eprom has lost the label.  sooo i have no idea what the revision number it is. the window is now exposed too.  i need to get the current eprom reflashed or simply get a replacement one.  i already looked at the parts for sale section.  thanks again.  Mark 

[Ron Rich]

Hi Mark,
Which version ( number of pins) do you need (look at PCB--any vacant pin holes ??)? I have either 4.1, or 4.3 in stock (both the same other the default pricing). Contact me at : [e-mail]. Ron Rich

[Ken Layton]

If he has the original CCC board the machine shipped with, it would be the 32 pin eprom (27C010-12). Naturally, someone may have swapped out the CCC board with an earlier one at some point.

[Ron Rich]

Hi Ken,
Or, as I have done a few hundred times-just added the pins---LOL--(Oh yea, along with adding all of the other, "updates") Ron Rich

[Ken Layton]

Some of those CCC boards already had the extra pads for a 32 pin socket. In those cases, I just unsoldered the 28 pin socket and installed the 32 pin socket instead.

[bjwizzer]

Ron, I just posted a question asking what the difference is between the v3.9 and the 4.1 eprom on a cd100 is.

Would you know?

BJ

[Ron Rich]

Hi BJ,
Sorry, I don't remember-- not too much-- 3.9 was a good rev. Maybe Ken does ??-- 4.1 to 4.3 was pricing defaults--4.2 is a "bad rev"--
Ron Rich

[woodmedic]

Jun 12, 2019 16:19:38 GMT Ron Rich said:

Hi Mark,
Which version ( number of pins) do you need (look at PCB--any vacant pin holes ??)? I have either 4.1, or 4.3 in stock (both the same other the default pricing). Contact me at : [e-mail]. Ron Rich

Hi Ron.  I need version 4.3 for my Rowe CD100F.  Do you still have this in stock?  Thanks!

[Ron Rich]

Hi Chris,
Yes--contact me off forum --which chip do you have now ? [e-mail]