Beginner learning the basics of board repair, was given a 6803 board that looks almost new. The guy had pulled the reset switch and a few resisters off of it, i replaced all missing parts and installed it in my working pin and im not getting a led blink at all on power up. Using http://www.pinrepair.com/6803/ thread i checked U1 pins 4,5,6 which are suppose to be 5v but im at 3.8 on pin 5, pin 6 reading 5v so from what i read the reset should be working. I believe U1 eprom maybe bad as i also noticed it getting hot so i want to replace it before going to deep.

When reading the numbers on the eproms how do i know what to get? Is there a guide in identifying roms replacements? I recently bought a eprom reader/burner so looking to try it out updating some roms.

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Yea i plan on it, i switched out with the cr2032 bat on my special force. Was wanting to get it working before doing to much modifications, does it need to be off for testing?

Is there a link to buy the eproms/ roms? Cross refrence chart?

ok, thanks i'm looking at a few places who sell them. Going to get them ordered and hopefully get the board going, if not i will be doing some more testing. I will try to keep things updated as i go along.

What does the "C" mean in the numbers? Same numbers but with letter? Also isee they have them in different ns speed? Does it make a difference?

Thanks for the info i have been reading up, got in my new eprom reader/writer. Ordere 100+ eproms from www.epromman.com if anyone interseted in buying some.

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