https://wiki.arcadeotaku.com/index.php?action=history&feed=atom&title=Hyper_Olympics_84_Repair_LogsHyper Olympics 84 Repair Logs - Revision history2026-05-06T18:55:27ZRevision history for this page on the wikiMediaWiki 1.42.1https://wiki.arcadeotaku.com/index.php?title=Hyper_Olympics_84_Repair_Logs&diff=7040&oldid=prevDavewellington: moved Hyper Olympics 84 by channelmaniac to Hyper Olympics 84 Repair Logs2012-09-07T00:23:32Z<p>moved <a href="/index.php?title=Hyper_Olympics_84_by_channelmaniac&action=edit&redlink=1" class="new" title="Hyper Olympics 84 by channelmaniac (page does not exist)">Hyper Olympics 84 by channelmaniac</a> to <a href="/w/Hyper_Olympics_84_Repair_Logs" title="Hyper Olympics 84 Repair Logs">Hyper Olympics 84 Repair Logs</a></p>
<p><b>New page</b></p><div>Repairer: channelmaniac<br />
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Symptom: Dead<br />
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CPU board tested good by substitution. Replaced bad 504 and 082 custom Konami chips. Board now runs but has corrupt player graphics. Signal DM7 (pin 11 of H3) is stuck low causing the corruption. The chip at H3 and the chips it drives at J4 and H4 are all good. The CLK4 signal is incorrect. A check of a good board shows pulses in groups of 3 and the bad board shows pulses in groups of 2... Replaced a bad 74LS20 at location E16 to finish the repair.<br />
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[[Category:Repair Logs]]</div>Davewellington