https://wiki.arcadeotaku.com/index.php?action=history&feed=atom&title=World_Rally_Repair_Logs 2026-04-06T03:22:28Z Revision history for this page on the wiki MediaWiki 1.42.1 https://wiki.arcadeotaku.com/index.php?title=World_Rally_Repair_Logs&diff=14974&oldid=prev 2021-12-11T08:17:31Z

<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/20191230200659/http://arcadefixer.blogspot.com/2017/01/ World Rally -Gaelco 1993 (repair log)]&lt;br&gt; T...&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/20191230200659/http://arcadefixer.blogspot.com/2017/01/ World Rally -Gaelco 1993 (repair log)]&lt;br&gt;<br /> <br /> The game booted but had 2 issues:&lt;br&gt;<br /> - RAM checksum error at address XXX (changes every time you power the board)&lt;br&gt;<br /> - Coprocessor not ready (indicates the game has committed suicide)&lt;br&gt;<br /> <br /> For the RAM error I first thought it was bad but discovered a cut trace. I patched it and the problem was fixed.&lt;br&gt;<br /> <br /> Then I tried to un-suicide the game. I first replaced the battery. Then I needed a RS232 to TTL converter and as my computer doesn&#039;t have a serial port anymore (I had it through the docking station but I got rid of it...) I went the USB to TTL converter route.&lt;br&gt;<br /> <br /> The pinout on the World Rally board is as follow:&lt;br&gt;<br /> - 1 (closest to the printed 0) = VCC&lt;br&gt;<br /> - 2 = TXD&lt;br&gt;<br /> - 3 = RXD&lt;br&gt;<br /> - 4 = /PROG&lt;br&gt;<br /> - 5 = GND&lt;br&gt;<br /> You must bridge /PROG to GND on the board and connect only 3 wires to the TTL adapter (GND/TXD/RXD). Pinout may vary according to the adapter so just check yours.&lt;br&gt;<br /> The port settings are 2400b/s, 8 data bits, no parity, 1 stop bit and XON/XOFF flux control.&lt;br&gt;<br /> With hyperterminal (or any other serial communication software) send a carrier return. The game should answer &quot;DS5002 LOADER VERSION 0.1...&quot;&lt;br&gt;<br /> Then send U, the game should answer &quot;UNLOCKED&quot;.&lt;br&gt;<br /> Send L, the game waits for a file to load.&lt;br&gt;<br /> Copy and paste the following code:&lt;br&gt;<br /> <br /> Gaelco wrote:File too big&lt;br&gt;<br /> <br /> [EDIT]&lt;br&gt;<br /> Can be found [http://foulweb.free.fr/divers/prog/WRDALLAS.HEX here]&lt;br&gt;<br /> (Or you can do as I did: download the romset on Gaelco website and convert the wrdallas.bin file to hex).&lt;br&gt;<br /> [/EDIT]&lt;br&gt;<br /> <br /> Transfer is quite long (between 5 and 10mn?).&lt;br&gt;<br /> When finished type Z to lock the DS5002.&lt;br&gt;<br /> <br /> Unfortunately it didn&#039;t work for me on first try. The cause was another broken trace. I fixed it and started the download procedure again and it worked!&lt;br&gt;<br /> Another game saved.&lt;br&gt;<br /> [[File:ApocWR_1.JPG]]&lt;br&gt;<br /> [[File:ApocWR_2.JPG]]&lt;br&gt;<br /> <br /> [[Category:Repair Logs]]</div>

Davewellington