Hello,
this time i need help to repair MH 500C/262.
The first problem was caused by the failure of the PE1870/03 power supply.
After a few weeks, I repaired the power supply and mounted it, but I encountered the following problem: the monitor does not work properly, there is no image displayed. I will try to fix the CRT monitor as well, but I am also thinking about replacing it with an LCD computer monitor. I also pulled out the video card 4022 226 3433 (front label 34334 & D7076). On this card, a group of jumpers is dedicated to settings. I am of the opinion that the vertical and horizontal frequency is set here, but I am not sure. Maybe someone has more information about this card in terms of settings or can help me. When measuring one jumper, I found that it had no contact with the pins. I fixed that.