Recent content by Datamisc

Not sure if anyone is interested in this software, its rare and had it in a drawer since 1991 it was developed by Quaid Software Limited, and I used it to remove copy protection on some old DOS games to create a backup or run them from the Hard Disk even if the game did not let you originally...

Roger, did the degaussing, and the borders are straight. They dont fill all the screen, but i guess that is how it was maybe? Thanks once more

Ok after your advice I checked that area, using magnifier glasses and found some cracks in the solder in a couple of components, applied flux and re-soldered them. these are the results: And I cannot describe the feeling of watching that screen alive again! Hugo Holden, Bburley and Andy...

Ok, will check that out. Thank you

Ok will triple check with the oscilloscope and will analyze the schematics for that area. Thank you Burley..

So, this repair is not only to make the monitor work, but I also love to learn new things. I could not find the Horizontal Output Transistor, as much effort I gave, it was supposed to be near the Flyback transformer, but my inexperienced eyes just didn't saw it. After much investigation about...

Ok work has the best of me at the moment, but managed to do a fast modification to the G2 (285 v) and took a picture of the screen, will check what hugo said once I get more time, Thank you all again.

Will do that and post here my results. thanks

Interesting article, thank you Burley, will read it also tomorrow so my head gets all the important things.

Hey Andy, thank for the reply, I've read about desoldering the G2 wire and doing direct measures on it. Should I do that first or adjust the G2 knob first and how much voltage do you recommend?

Thanks for the Explanation Hugo, this is my first time with a CRT monitor and between all your help and things I read I am slowly learning the works of it. Will search for the H output transistor and will measure it then.

Ok I got the High Voltage Probe and measured the only transistor I could find in the power PCB, the K793 high voltage N-MOSFET with the following results Gate: Drain: Source Also did a double check on the G1: And for G2, I checked the power coming from the EHT: And once it got to...

Thank you, I have ordered the probe. Will double check voltage in G1 and G2 meanwhile. Any other thing I have to check that I have missed? Have a good weekend guys!

It does look a lot more like mine. will check it and post my results. Thanks Burley.

Not sure if there is a way to check the Extra high-tension transformer, after doing a double check on the voltages in G1 and G2 any other advice Hugo?