[admin translated]
Hello everyone. I recently purchased a 1084P (mono). There is sound on the monitor but no image. I connected a camera for testing. The sound comes out perfect. But still no image. There is no static on the monitor screen. There is no buzz either. From what I understand there is low voltage but no high voltage. I opened the CRT cover. I emptied the tube. There is no visible problem with the motherboard. The capacitor next to the optocoupler was giving an error in the measurements on the PSU. I removed it. I measured it and saw that the capacitor was OK. When I change it it gives an error. The optocoupler legs did not show any values. Could it be broken? When I measured HOT, it gave a normal value. Where should I look for high current? Thank you in advance for your help.
Hello everyone. I recently purchased a 1084P (mono). There is sound on the monitor but no image. I connected a camera for testing. The sound comes out perfect. But still no image. There is no static on the monitor screen. There is no buzz either. From what I understand there is low voltage but no high voltage. I opened the CRT cover. I emptied the tube. There is no visible problem with the motherboard. The capacitor next to the optocoupler was giving an error in the measurements on the PSU. I removed it. I measured it and saw that the capacitor was OK. When I change it it gives an error. The optocoupler legs did not show any values. Could it be broken? When I measured HOT, it gave a normal value. Where should I look for high current? Thank you in advance for your help.
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