044 flash board questions

[Retro tech repair]

I'm not expecting this topic to develop very far but i figured i would give it a shot. so here is what I'm trying to do. i have a few 044 flash boards that have been deemed faulty and I'm going to try to repair them. i have access to a re-flow station and soon re-balling equipment so replacing chips should not be a problem. here is where i need help I'm hoping someone on here has access to a schematic of the boards or can give me a general understanding of how the board functions. and yes i know the boards will need to be reprogrammed after i find and replace what chips are bad i don't have a burner but i know someone i can ship the board and have them flash it. basically i need to find a way to test what chip is bad so I'm not replacing every one that's on the board.

[Neonkiss]

I believe when re flashing the board fails, it tells you what chip had the problem.
I tried replacing/swapping SDM chips on these before, but ultimately failed.

[Retro tech repair]

I have heard that the flasher will tell u what chips is faulty. I don't have a flasher myself and have to ship the boards to someone that does. I has hopeing to be able to build a way to test the chips myself. The soldering part im not too worried about if i fail owell i have 3 boards with the same chips and configuration i was planning to take parts off one to try to fix the the other 2. If they truly are dead there is no harm in trying. All i have to loose is some time a bit of flux and some solder balls or paste for the bga chips.

[rjpohl]

Retro,
Do you repair the 044 flash boards?
Bob