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Stryker7314 Mine had exactly the same problem as yours on the video, but leaving it plugged in didn't help. It was fixed in a repair shop and the man said there were broken circuits on the D board which were causing the problem. I still haven't opened the monitor to check what exactly was done...

Once again thanks for the detailed info, Strat_84 ! Do you know from where a good quality AR film could be obtained? Preferably in Europe. I have around 10 CRT monitors, most of them Trinitrons or Diamondtrons. Some of them are in bad enough condition to be sacrificed for experiments. If there...

I am sorry if it has already been discussed but what about the protective films like the ones offered here and here for example? Wouldn't they be good enough to cover light scratches and spots on the original AR coating? On the second link you can select Sony CPD-G520 which makes me think these...

Thanks for the advice, Strat_84 !

Speaking about the AR film, mine is in relatively good condition but still it has some vertical marks on it visible on white background. Would it be a good idea to put a clear window film on it? For example like the one they put on car windshields for protection?

I don't think you are right. I have a Dell P1110, IBM P275, Dell P1130, Dell P1230 and other CRTs which don't do that.

Greetings to all and happy new year! Back on pages 433 and 434 I have described some problems with my HP A7217A(differently branded FW900). Basically the main problem was that it turned off the moment I plugged a VGA cable in it. After leaving the monitor in a repair shop for a few months this...

I just found out that the A board of my faulty HP A7217A (FW900) monitor is almost identical to the A board of Dell P1110. Switching the boards didn't solve my problem because the fault seems to be somewhere else, but it's a fact that the P1110 A board is compatible with FW900. I thought this...

No, all the cables are connected properly. By the way I did the voltage measurements on the G board which Strat_84 suggested but all voltages seem right. I guess I should keep looking for something wrong on the D board.

Ah sorry. The brand of the capacitor is KEA but I doubt you've heard of it. It's a local Bulgarian brand. They used to make caps for ITT. When I tried resolutions other than 640x480 the monitor would display the desired resolution for a brief moment but then it would immediately revert to...

So it looks like that there are still multiple problems in play. Yes, I have replaced C933. I was 1UF 20.00% 50V 85°C but wasn't able to get exactly the same one so I have used 1UF 20.00% 63V 105°C. The polarity is correct. By the way the recapping didn't affect the monitor's behavior in any...

Thanks again for the detailed explanations. The led blinks once every two seconds I would say(video attached). I have tried to search for the meaning of the blinking led patterns of this monitor but I wasn't able to find anything. For the brief second it was there the image looked ok in terms of...

Following your advice I was able to fix the problem with the retracted image. Thanks a lot! R729 on the D board was faulty. It went from 1 ohm to almost 600. I also improved the overly bright image by reducing the G2 voltage. However the problem with the input signal still remains. When I plug...

Thanks, Unkle Vito, but I am located in Bulgaria.

Strat_84 Thanks a lot! I will check these things and will post here with updates. It might be helpful for someone else.

Thanks a lot for the replies. I sure won't be leaving the monitor working like that. Thanks for the advice. Any idea on how should I fix this problem? I have replaced all the capacitors on the D board and resoldered all the joints on the A board because they were looking really bad(many of the...

Greetings! New member here looking for help. Recently I was able to get a cheap HP A7217A (basically a Sony FW900) which is in a really bad shape. As it can be seen on the photo below, the monitor displays only half the image while the other half of the screen stays black. I don't know if it is...