nic034
n00b
- Joined
- Jan 19, 2016
- Posts
- 15
Hello Guys,
In order to repair a board with a reboot loop issue (with clic sound) and garbage in screen, i'm looking for bios/wram/chip traces for MVS MV-1F.
I don't find correct information in order to check bad traces. Already replaced all sony wram on board with brand new one and repair 1 bad traces on below wram and near battery. (leaked issue). First issue was reboot loop with partial green screen and garbage on top, now all screen garbage.
Tested new BIOS and diag BIOS same issue, replaced crystal and perform battery mod same issue, perform rework on all chip and check PCB with magnifying glass. Note : seems to have some battery leak on chip YM2610 sound leg, cleaned and a dual Z80 chip instead of BIOS ?
Thanks if someone have an idea, i don't have any logical test tools at this time.
In order to repair a board with a reboot loop issue (with clic sound) and garbage in screen, i'm looking for bios/wram/chip traces for MVS MV-1F.
I don't find correct information in order to check bad traces. Already replaced all sony wram on board with brand new one and repair 1 bad traces on below wram and near battery. (leaked issue). First issue was reboot loop with partial green screen and garbage on top, now all screen garbage.
Tested new BIOS and diag BIOS same issue, replaced crystal and perform battery mod same issue, perform rework on all chip and check PCB with magnifying glass. Note : seems to have some battery leak on chip YM2610 sound leg, cleaned and a dual Z80 chip instead of BIOS ?
Thanks if someone have an idea, i don't have any logical test tools at this time.
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