https://wiki.arcadeotaku.com/index.php?action=history&feed=atom&title=P-47_Repair_LogsP-47 Repair Logs - Revision history2026-05-09T00:07:22ZRevision history for this page on the wikiMediaWiki 1.42.1https://wiki.arcadeotaku.com/index.php?title=P-47_Repair_Logs&diff=7157&oldid=prevDavewellington: moved P-47 by Paul Swan to P-47 Repair Logs2012-09-07T00:51:45Z<p>moved <a href="/index.php?title=P-47_by_Paul_Swan&action=edit&redlink=1" class="new" title="P-47 by Paul Swan (page does not exist)">P-47 by Paul Swan</a> to <a href="/w/P-47_Repair_Logs" title="P-47 Repair Logs">P-47 Repair Logs</a></p>
<p><b>New page</b></p><div>Repairer: Paul Swan<br />
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BOARD NO: 0123<br><br />
GAME: P-47<br><br />
MANUFACTURER: Jaleco<br><br />
DATE: 1987<br><br />
HARNESS: JAMMA<br><br />
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SYMPTOM (20/07/96)<br><br />
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No initialization/continous watchdog reset & sound bites.<br><br />
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SOLUTION<br><br />
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Using a scope to have a look around the 68K at location 5B indicated that all the address/data/control pins were pulsing normally except D4 on pin 1. Touching the pin with the scope lead stoppped the watchdog timing out and started the background music playing but didn't start the game. Pressing down on pin 1 with the scope lead brought back a full level signal on pin 1, but still didn't start the game. Resoldering the fractured pin 1 and re-flowing all the other pins on the 68K fixed the game completely.<br><br />
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As a side note, I also secured all the JK packages with epoxy resin as they are VERY fragile and easily broken off.<br><br />
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[[Category:Repair_Logs]]</div>Davewellington