https://wiki.arcadeotaku.com/index.php?action=history&feed=atom&title=MVS_MV-4FS_Repair_LogsMVS MV-4FS Repair Logs - Revision history2026-04-20T15:49:10ZRevision history for this page on the wikiMediaWiki 1.42.1https://wiki.arcadeotaku.com/index.php?title=MVS_MV-4FS_Repair_Logs&diff=7140&oldid=prevDavewellington: moved MVS MV-4FS by channelmaniac to MVS MV-4FS Repair Logs2012-09-07T00:50:08Z<p>moved <a href="/index.php?title=MVS_MV-4FS_by_channelmaniac&action=edit&redlink=1" class="new" title="MVS MV-4FS by channelmaniac (page does not exist)">MVS MV-4FS by channelmaniac</a> to <a href="/w/MVS_MV-4FS_Repair_Logs" title="MVS MV-4FS Repair Logs">MVS MV-4FS Repair Logs</a></p>
<p><b>New page</b></p><div>Repairer: channelmaniac<br />
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Symptom: Dead. Had a note taped to it that there were lines in the graphics.<br />
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Unit was missing the BIOS chip. Programmed a replacement chip (27C1024) and booted it. It had lines in the graphics and was missing sounds. Board had been repaired before and had many chips replaced on upper and lower boards. It also had a dark liquid spill on the top board.<br />
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Checked all the previous trace repairs. Reset the Backup RAM to fix the sound issue. Cleaned the top board and the slot connectors to fix the lines in the graphics. Reassembled the board and replaced all the missing standoffs, screws, and mounting feet.<br />
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[[Category:Repair Logs]]</div>Davewellington