Kung Fu Master pcbs repairs

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   Did this small video edit of a few repairs to my kung fu master pcbs recently.
First stack wasn't too bad, a bad multiplexer at 1b on the graphics board prevented the sprites being displayed and couple of fujitsu chips replaced.

The second stack had TONS of issues on all 3 boards. changed almost 20 fujitsu chips, almost all of them bad. Bad sound CPU, new op amp and syntesizer chip (pulled from bootleg donor board) ...and some slight future proofing (pulled more fujitsu ICs) ... move roms around as they were in the wrong sockets and some bent lengs on z80 were out of the socket (not in video) 

I'm not a "pro" at this thought so there's a few errors in some of my comments ... but at least they're fixed :)

Edited by olonguet - 18 Aug 2017 at 1:36pm

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olonguet Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List View Feedback User Joined: 19 Sep 2016 Location: Galway, Ireland Status: Offline Points: 173 Feedback: 0	Post Options Post Reply Quote olonguet Report Post Thanks(0) Quote Reply Topic: Kung Fu Master pcbs repairs Posted: 18 Aug 2017 at 1:31pm
	Did this small video edit of a few repairs to my kung fu master pcbs recently. First stack wasn't too bad, a bad multiplexer at 1b on the graphics board prevented the sprites being displayed and couple of fujitsu chips replaced. The second stack had TONS of issues on all 3 boards. changed almost 20 fujitsu chips, almost all of them bad. Bad sound CPU, new op amp and syntesizer chip (pulled from bootleg donor board) ...and some slight future proofing (pulled more fujitsu ICs) ... move roms around as they were in the wrong sockets and some bent lengs on z80 were out of the socket (not in video) I'm not a "pro" at this thought so there's a few errors in some of my comments ... but at least they're fixed :) Edited by olonguet - 18 Aug 2017 at 1:36pm