INTRON DSO-2020 oscilloscope

[danhertanu]

ocsilloscope 2020

I have an Intron DSO-2020 oscilloscope and I have a problem. The horizontal amplifier seems to be dead (I have only a little dot on the screen which is not moving from left to right, no matter the position of the time base switch).
Thanks in advance for any hint, schematic, or part of it.[/img]

 

[ilux942]

servis.intronic.hr

I also have, and had many problems in the past with that scope.
Certainly I'm too late with this...but still I have schematics left, just ask
if still needed.