Repair IGS PGM Address Error

[vectrex]

Hello,

i am seeking for repair help for this spectacular error screen i get on the PGM (no Cart inserted)

thanks in advance

BR

 

[nam9]

Think I also have a board like this…

 

[leonk]

Does PGM show a screen normally with no cart inserted?

 

[vectrex]

no ... i have the this garbage picture without all the writing

 

[GC8TECH]

Which revision PCB motherboard do you have??

 

[ShootTheCore]

Does PGM show a screen normally with no cart inserted?

It should bring up a Test Menu with no cart installed. @vectrex - check the traces to the BIOS chip for damage. The BIOS chip may need to be replaced.

 

[GC8TECH]

The best place to start is find out what revision motherboard the person has. As battery damage is the most common cause of boot errors.
@vectrex If you haven't noticed i run a web page and discord that focus on the PGM hardware. I have LOTS of info on the site (Including repair info).
Everything is in my Signature below or go here https://igspgm.com/

My most viewed video is my PGM Motherboard Buying Guide. Watching that will help you find out which revision motherboard you have.

View: https://www.youtube.com/watch?v=e22dO5tfH9k


If you want to get in contact please visit my Discord server or Email me from my web page. Or just post in here

T.

 

[vectrex]

the board is
IGS PCB NO-0133-2

 

[vectrex]

There was a problem with the traces on the chip U5 … the traces are ok now …

 

[chacal231077]

There was a problem with the traces on the chip U5 … the traces are ok now …

Hi!

I had an issue with a stuck button caused by the U5 chip.

There were signs of oxidation on the chip itself, as well as on the pads and PCB traces.

Rather than spending time troubleshooting further, I rebuilt the damaged traces and pads and replaced the ASIC with one salvaged from a donor motherboard.

After the repair, the stuck button issue was completely resolved.

 

[1credit]

I picked up a faulty
Mother board and
Demon front pcb

I will take pics of my mother board and check the u5 chip asap..
Screen I get from the demon cart in my
Good working pgm is lots of repeated same static character

 

[vectrex]

There was a problem with the traces on the chip U5 … the traces are ok now …

Maybe that was missunderstandable

I fixed the u5 traces but now i got the adress error … before the fix i just had a black screen

 

[1credit]

Pls let me
Know if I’m jumping into a thread I shouldn’t be ..

It’s just I have a faulty Pgm motherboard also and was
Going to share pics here ?

 

[vectrex]

go