Commodore PET 2001 Photos

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Commodore PET 2001 Photos	by Bill Degnan - 03/10/2007 21:31
A fellow Commodorian met me at my house today to help work on some PETs we have. In total 4 PET's were worked on today from less than functional systems 1) 2001-8 (sn 29652)- when tape loading program, some junk appears on screen see #2 below) 2) 2001-8 (sn 20343)- (bad keyboard replaced) 3) 2001-32B (bad power supply replaced, monitor fixed see #1 below) 4) 2001-16N - (not fixed: RAM (?) 5) also semi restored a CBM 8250 disk drive using a B-128. Was not able to header a disk, but could read directories in drive 0. Lessons learned: #1 If your monitor is hissing pretty loudly but there is no smoke, the suction cup connector may have come dislodged from the inner picture tube chassis - re-attach #2 If you are having issues loading programs from the tape such as garbled characters appearing on the screen, try loading the programs on an external tape drive by disconnecting the internal drive and using the port for your external tape player. If you are successful loading programs from external tape drive, 1) you may have a power supply problem 2) at least you know the processor and RAM are probably OK. Here are some hi-res pics: http://vintagecomputer.net/commodore/2001/ (there are no pics of the 2001-32B or 2001-16N) Bill Deg Reply
Commodore PET 2001 Photos	by Bill Degnan - 03/11/2007 21:32
> Lessons learned: > #1 If your monitor is hissing pretty loudly but there is no smoke, the > suction cup connector may have come dislodged from the inner picture tube > chassis - re-attach > > And there is a nice orange glow coming from the end of the yoke... > #2 If you are having issues loading programs from the tape such as garbled > characters appearing on the screen, try loading the programs on an external > When Bill says garbled characters on the screen, we aren't talking about when the system is started up, but while trying to LOAD a program.. For instance while searching the tape for a certain program (say, Police!) and the other programs found are spelled incorrectly or have garbled characters (like graphics characters). > tape drive by disconnecting the internal drive and using the port for your > external tape player. If you are successful loading programs from external > tape drive, 1) you may have a power supply problem 2) at least you know the > processor and RAM are probably OK. > > And exercise your machine!! :D Reply
Commodore PET 2001 Photos	by Bryan Pope - 03/14/2007 15:19
The hissing did go away when the suction cup thingie was reattached (when the power was OFF mind you!), but the orange glow stayed. Cheers, Bryan Reply
Commodore PET 2001 Photos	by Bill Degnan - 03/14/2007 15:26
The orange glow is normal, all monitors have this at the tip of the crt. Reply