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Title: Unico games Post by: channelmaniac on December 02, 2010, 04:27:40 AM Model: Zero Point
Symptom: Corrupt Graphics Patched a bad trace to fix background graphics. Removed a short between pins of 2 adjacent 74LS161 counters to fix text misplacement issues. Replaced 2 bad SRAMs to fix foreground graphics corruption. Title: Re: Unico games Post by: channelmaniac on December 02, 2010, 04:32:48 AM Model: Zero Point
Symptom: Garbled Audio Board is NOT JAMMA compatible for audio output. It is wired similar to the Neo Geo MVS stereo outputs. Title: Re: Unico games Post by: channelmaniac on December 14, 2010, 03:36:07 AM Model: Zero Point 2
Symptom: Dead Replaced 2 bad program EPROMs and one damaged socket. Board would then work but lock up if board was tapped. Resoldered the surface mount 68020 CPU to fix the lockups. Board has graphic corruption on the foreground graphics. Replaced 4 bad SRAM ICs to fix foreground graphic corruption. |