Professional software development, amateur BMW tinkering, old arcade game stuff


Technos Wrestlefest arcade pcb repair

Two different boards with the same sorts of glitches – corrupt sprites, bad palettes and sometimes no video output at all.  Sometimes the corruption would change if you pressed on different chips on the board.

IMG_2650 IMG_2651 IMG_2678

Pressing on the board to make a difference is often a hint surface mount custom chips are not making good contact.  On both boards some pins of the TJ-003 custom were lifted and not making a solid connection.  On one board the TJ-002 custom also had some lifted pins.  The solder was reflowed and both boards back to 100%.





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