https://wiki.arcadeotaku.com/index.php?action=history&feed=atom&title=Heated_Barrel_Repair_Logs Heated Barrel Repair Logs - Revision history 2026-04-06T04:43:42Z Revision history for this page on the wiki MediaWiki 1.42.1 https://wiki.arcadeotaku.com/index.php?title=Heated_Barrel_Repair_Logs&diff=15051&oldid=prev Davewellington: Created page with "'''Repairer:''' Apocalypse<br> '''Source:''' [https://web.archive.org/web/20191230200351/http://arcadefixer.blogspot.com/2017/08/ Heated Barrel - TAD 1992 (Repair log)]<br> G..." 2021-12-17T03:14:49Z <p>Created page with &quot;&#039;&#039;&#039;Repairer:&#039;&#039;&#039; Apocalypse&lt;br&gt; &#039;&#039;&#039;Source:&#039;&#039;&#039; [https://web.archive.org/web/20191230200351/http://arcadefixer.blogspot.com/2017/08/ Heated Barrel - TAD 1992 (Repair log)]&lt;br&gt; G...&quot;</p> <p><b>New page</b></p><div>&#039;&#039;&#039;Repairer:&#039;&#039;&#039; Apocalypse&lt;br&gt;<br /> &#039;&#039;&#039;Source:&#039;&#039;&#039; [https://web.archive.org/web/20191230200351/http://arcadefixer.blogspot.com/2017/08/ Heated Barrel - TAD 1992 (Repair log)]&lt;br&gt;<br /> <br /> Game booted but with a dominant green tint (forgot to take a picture) and was silent.&lt;br&gt;<br /> Concerning the colour issue I probed the colour RAMs (2 of them) and the one @ E4 (U096) had weak data signals. Piggybacking it cleared the issue so I replaced it:&lt;br&gt;<br /> [[File:ApocHB_1.JPG]]&lt;br&gt;<br /> For the sound problem I found the audio RAM @ C5 (U118) was dead too altough piggybacking it didn&#039;t make any change. This game uses a weird custom chip noted YM3931 (not sure it&#039;s linked with the Yamaha brand) for sound. I was sure of it cause it&#039;s connected to the audio RAM, the YM3812 and the OKI M6295. Anyway, many of what I thought were outputs were silent. This also isn&#039;t normal, the chip is a SDIP64 (shrink DIP with a pitch of 0.07&quot; instead of 0.1&quot; for standard DIP) and very few legs were active. Luckily my friend Kelvin found the chip somewhere online for $8 IIRC:&lt;br&gt;<br /> [[File:ApocHB_2.JPG]]&lt;br&gt;<br /> I replaced it and sound was brought back to normal.&lt;br&gt;<br /> [[File:ApocHB_3.JPG]]&lt;br&gt;<br /> Game fixed.&lt;br&gt;<br /> [[File:ApocHB_4.JPG]]&lt;br&gt;<br /> [[Category:Repair Logs]]</div> Davewellington