- Joined
- Jan 12, 2014
- Posts
- 4,676
Well I guess this was meant to happen at some point but it took me by surprise to see mine glitching out after being months unhooked from power.
I'm getting a hardware test failed for Backup RAM and the Z80 System... or at least that's what I think, because the screen reads more like
"HAPDUAPE TEQT DAILED - X80 QYQTEM"
any hints of places to look into to fix this? I'm assuming cold solder joints.
EDIT: ok, it seems z80 errors are meant to be normal since the MV-1B doesn't have the SM1 ROM. With a cart inserted I can bypass the Backup RAM error with A, and the games work, but the graphics are still all scrambled.
The graphics are OK, no doubled pixels or vertical lines or any of the sort, just being fetched from the wrong addresses I think. This affects both the sprite and fix layers.
I'm getting a hardware test failed for Backup RAM and the Z80 System... or at least that's what I think, because the screen reads more like
"HAPDUAPE TEQT DAILED - X80 QYQTEM"
any hints of places to look into to fix this? I'm assuming cold solder joints.
EDIT: ok, it seems z80 errors are meant to be normal since the MV-1B doesn't have the SM1 ROM. With a cart inserted I can bypass the Backup RAM error with A, and the games work, but the graphics are still all scrambled.
The graphics are OK, no doubled pixels or vertical lines or any of the sort, just being fetched from the wrong addresses I think. This affects both the sprite and fix layers.
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