SB180 problems

From: Richard A. Cini <>
Date: Wed Sep 29 19:48:37 2004


        Thanks. I had a momentary short in the power supply line when I was moving
the board around during some testing. Could be anything. That's why I was
trying to decode what appears to be a diagnostic code on the screen before I
start replacing things. It's probably NOT the CPU or the ROM only because
I'm actually getting screen output. I'm guessing one of the 74xx chips or
the DRAM.


-----Original Message-----
[]On Behalf Of Joe R.
Sent: Wednesday, September 29, 2004 5:18 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SB180 problems

  Major bummer! I don;t have a source listing but I do have a couple of
working SB-180s. I can dump the EPROMs for you if need be.


At 03:55 PM 9/29/04 -0400, you wrote:
>Hello, all:
> Does anyone on the list have a source listing (either original or
>reconstructed) to the Circuit Cellar SB-180 monitor ROM? I did something
>stupid to it a while back and I think I blew something on the board. Now,
>when it boots up, instead of the banner I get what appears to be a
>diagnostic code in binary. The documentation package I have neither has a
>listing of the codes nor the ROM listing itself, and efforts to contact the
>original author to have failed.
> Thanks in advance.
Received on Wed Sep 29 2004 - 19:48:37 BST

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