https://wiki.arcadeotaku.com/index.php?action=history&feed=atom&title=Pit_Fighter_Repair_Logs 2026-05-04T07:11:23Z Revision history for this page on the wiki MediaWiki 1.42.1 https://wiki.arcadeotaku.com/index.php?title=Pit_Fighter_Repair_Logs&diff=7171&oldid=prev 2012-09-07T00:53:23Z

<p>moved <a href="/index.php?title=Pit_Fighter_by_channelmaniac&amp;action=edit&amp;redlink=1" class="new" title="Pit Fighter by channelmaniac (page does not exist)">Pit Fighter by channelmaniac</a> to <a href="/w/Pit_Fighter_Repair_Logs" title="Pit Fighter Repair Logs">Pit Fighter Repair Logs</a></p> <p><b>New page</b></p><div>Repairer: channelmaniac<br /> <br /> Symptom: Game controls not working<br /> <br /> Replaced bad 74LS244 ICs at locations 70B and 75B. Tested board.<br /> <br /> ----<br /> <br /> Symptom: Garbled graphics<br /> <br /> Swapped IC S30 with a parts board to fix. Burned a replacement GAL for the parts board.<br /> <br /> ----<br /> <br /> Symptom: No video output<br /> <br /> Traced the missing video signal back to the output latches. Signal was on the input side but not crossing the IC. The clock signal was missing on the latches. Replaced the GAL at 65D to fix. <br /> <br /> ----<br /> <br /> Symptom: Loses most sounds after heating up<br /> <br /> Most audio signals disappeared after playing the game for about 10 minutes. Cooling spray had no effect. The audio signals would come &amp; go. Sometimes they would work but most of the time they wouldn&#039;t. IRQ lines were going dead when the sounds disappeared. Replaced the 6502A CPU on the sound board to fix. <br /> <br /> [[Category:Repair Logs]]</div>

Davewellington