I had on the bench this mint 1941 : Counter Atta
ck CPS1 boardset:
Board played fine except for a minor sprite issue on some objects on backgrounds which manifested only on first level:
The game use the ‘CPS-B-05’ ASIC on C-BOARD which acts as a GPU generating all the graphics:
so I swapped a good known one from a Street Fighter II : The World Warrior boardset:
All the sprites were restored so I had confirm the ‘CPS-B-05’ ASIC was bad (probably an address line was ‘spitting out’ wrong address).I could swap the entire C-BOARD but appearances count too so I decided to transplant only the IC on the original C-BOARD.
I used an hot-air rework station covering the plastic connectors with tin foil as protection against heat:
To solder the chip I used the ‘drag soldering’ technique:
I succesfully tested the reworked C-BOARD and declared board as 100% working :
3 Responses to “1941 : Counter Attack repair log #1”
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Nice work 🙂
Thank you, mate.
Awesome man, congrats