[net.micro.atari16] jittering of the monitor

I6191008@DBSTU1.BITNET (04/11/86)

Thomas Petsche writes:

>  Another question: The display on my mono moniter becomes "jittery"

>after the system has been on for about 10-15 minutes. The problem

>disappears after another 10-15 minutes.  ("Jittery" means that the

>horizontal hold appears to be off, pixels alternate between their

>proper location and one location to the right or left.)  Any ideas

>or previous experience with this problem?  Is it in the moniter or the

>ST?  Should I consider this grounds to try and return the ST?

>(And get another, of course])

Thomas-

Return your ST immediately! There seems to be a hardware problem.

A friend of mine had the same problem. He got a new one. I think this

line shifting is due to a failure of the video counter in the

GLUE (or the MMU? Where was the videocounter?).

Johann Zuschlag (I6191008@DBSTU1.BITNET)