Another thought is that one of your ROMs have slipped out of their sockets... Open the case of the PET (there are screws under the front holding it closed, lift the lid and you will find a metal prop-rod to prop the case open...) With the computer off (but plugged in so you can ground yourself with the outer metal case) locate the chips that have sockets, if it has been a while some chips may be partially out of their sockets. Re-seat the loose chips, making sure to not bend any pins that may have been sticking out. Push down (not too hard) on each of the other socketed chips to push them better in their sockets. Now try the power again. Mnay of my PETs get this way (starting to the monitor) when the chips start getting loose. If it still gives you the MLM, then it probably is some hardware fault of some kind, and best diagnosed by someone with more electonic skills than I. > On Tue, 18 Jul 2000 Pfnstef@aol.com wrote: > > > i'm trying to get basic when i turn the thing on, but it goes to 'sys' mode. > > can you help? > > thanks- stefan > > Do you mean the machine language monitor (the thing that lists the > register contents)? It could be that one of the RAM chips is faulty, > causing the boot-up procedure to crash. A copy of this message goes to > the cbm-hackers mailing list, whose subscribers could have more ideas. > > Marko -- 01000011 01001111 01001101 01001101 01001111 01000100 01001111 01010010 01000101 Larry Anderson - Sysop of Silicon Realms BBS (209) 754-1363 300-14.4k bps Classic Commodore pages at: http://www.jps.net/foxnhare/commodore.html 01000011 01001111 01001101 01010000 01010101 01010100 01000101 01010010 01010011 - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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