Allright guys, 15 years ago I bought a Plus/4 at a garage sale for five bucks, and i finally got on ebay and bought a power supply for it. So, I get it all hooked up using my c-128 setup.....
I get the purple-bordered screen with a white background and black text that I have never seen before! Commodore basic 3.5....60671 bytes free...
and three @ across the screen in a diaganol pattern.....everything else appears fine, so I press F1 to access the built in software...and then this:
(black screen, black border, yellow text, three @ still there)
break
pc sr ac xr yr sp
;1d43 32 08 00 00 rr
So, what could be happening? Any poke codes I can use to check the rest?
Partially functional Plus/4
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- Vic 20 Newbie
- Posts: 14
- Joined: Sun Sep 12, 2010 2:44 pm
Partially functional Plus/4
-= Corsair24x2 - In 8-Bit Mode! =-
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- Vic 20 Newbie
- Posts: 14
- Joined: Sun Sep 12, 2010 2:44 pm
Further Troubleshooting
Upon disassembly, it looks like Capicitator on the bottom side of IC UT2 is damaged.
I pushed in some of the ICs, thinking after years they might have come loose from their sockets, and when I rebooted, one of the @ artifacts was gone. I attempted to load the built in software, but it failed again and then the @ artifact returned, this time blinking!
I pushed in some of the ICs, thinking after years they might have come loose from their sockets, and when I rebooted, one of the @ artifacts was gone. I attempted to load the built in software, but it failed again and then the @ artifact returned, this time blinking!
-= Corsair24x2 - In 8-Bit Mode! =-
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- Vic 20 Hobbyist
- Posts: 105
- Joined: Tue Jun 17, 2008 8:21 pm
Sounds like failed RAM...
Call me a cheap bastard... I learned to fix things to save money... even surface mount soldering...
Visit my website: http://www.arcadecomponents.com
Visit my website: http://www.arcadecomponents.com