mrmacca
Experienced Member
Hi All,
This is my first post on the Vintage Computer Forum and I could do with some help or advice. Could you help, (or forward this message on to anyone who could help) diagnose my Commodore Pet 8032 display issue.
I switched it on today for the first time in a while, after the switch on beep I typed in and ran a simple program. After ten seconds random characters appeared.
This got worse resulting in permanently illuminated character positions in the whole screen with two green lines. This fills all rows and characters.
||C||o||m||m||o||d||o||r||e||||B||a||s||i||c||||4||.0||||||||||||||||||||||||||||||||||||
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||R||e||a||d||y|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Without taking a picture this is the best pictorial way I can describe it. :eh:
You can still make out the program running amongst the unwanted illumination but the display now is awful making the Pet unusable really. Shame really the board is from 1980 and I have the top off. Someone’s suggested re seating the character rom but I have no idea which chip it is?
I’d love to fix this computer and I work at a University so any ideas of rectification, how ever complicated I am sure we have the technology to follow or I could get someone at work to interpret anything you suggest if I dont understand
Many thanks for your time, :D
Kind Regards
Alasdair Macdonald
Staffordshire University, UK.
maccatakker69@googlemail.com
This is my first post on the Vintage Computer Forum and I could do with some help or advice. Could you help, (or forward this message on to anyone who could help) diagnose my Commodore Pet 8032 display issue.
I switched it on today for the first time in a while, after the switch on beep I typed in and ran a simple program. After ten seconds random characters appeared.
This got worse resulting in permanently illuminated character positions in the whole screen with two green lines. This fills all rows and characters.
||C||o||m||m||o||d||o||r||e||||B||a||s||i||c||||4||.0||||||||||||||||||||||||||||||||||||
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
||R||e||a||d||y|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Without taking a picture this is the best pictorial way I can describe it. :eh:
You can still make out the program running amongst the unwanted illumination but the display now is awful making the Pet unusable really. Shame really the board is from 1980 and I have the top off. Someone’s suggested re seating the character rom but I have no idea which chip it is?
I’d love to fix this computer and I work at a University so any ideas of rectification, how ever complicated I am sure we have the technology to follow or I could get someone at work to interpret anything you suggest if I dont understand
Many thanks for your time, :D
Kind Regards
Alasdair Macdonald
Staffordshire University, UK.
maccatakker69@googlemail.com