https://wiki.arcadeotaku.com/index.php?action=history&feed=atom&title=Turbo_Out_Run_Repair_Logs 2026-06-02T16:15:39Z Revision history for this page on the wiki MediaWiki 1.42.1 https://wiki.arcadeotaku.com/index.php?title=Turbo_Out_Run_Repair_Logs&diff=7284&oldid=prev 2012-09-07T01:07:14Z

<p>moved <a href="/index.php?title=Turbo_Out_Run_by_channelmaniac&amp;action=edit&amp;redlink=1" class="new" title="Turbo Out Run by channelmaniac (page does not exist)">Turbo Out Run by channelmaniac</a> to <a href="/w/Turbo_Out_Run_Repair_Logs" title="Turbo Out Run Repair Logs">Turbo Out Run Repair Logs</a></p> <p><b>New page</b></p><div>Repairer: channelmaniac<br /> <br /> Symptom: Dead<br /> <br /> Lights were on for the video board but not for the CPU board. Replaced burned power connector and adjusted power supply voltage to 5.05v.<br /> <br /> ----<br /> <br /> Symptom: Missing obstacles and background objects<br /> <br /> This was a strange one. The sky and road obstacles were missing. The buildings were there but the road and the car never moved left or right. This was a problem with the subprocessor. Built-in tests showed one of the ROMs bad. ROM read good in an EPROM programmer and a replacement ROM gave the same symptoms. Checked all the pins on the socket for continuity. The ROM pairs (High &amp; Low) had a common CE line. This was driven by a 74LS138. The chip had badly rusted legs. Replaced the chip and the game worked normally. The rust had travelled up the body of the chip. <br /> <br /> ----<br /> <br /> Symptom: No audio<br /> <br /> Resoldered the interconnects and the audio output IC on the amplifier board.<br /> <br /> [[Category:Repair Logs]]</div>

Davewellington