Hello, need your help boys.
I bought the amplifier for cheap from a guy on used market, he tried fixing it. He bought 4x5w 330ohm resistor 2 still new . But the problem is they get red hot like they are gonna blow up . I don't see any indication that the amp is actually on , no light and relays don't do anything. I checked if transformer primary wingdings might be bad , but i don't know both 115v primary wingdings says 1.8ohm and i don't know what it means. Also if i disconnected primary wingdings from the board the resistors didn't heat up anymore , but i checked the board and it seemed resistors should get some voltage even if the transformer is disconnected . The transformer primary has 130c fuses maybe that's the fault, maybe they are burned .
Transformer link : http://www.samodelka.ru/pictures/data/hypex_tr501a_9234.pdf
Amplifier link : http://www.arton.info/DS80_manual.pdf
Thank you for your help ! 🙂
I bought the amplifier for cheap from a guy on used market, he tried fixing it. He bought 4x5w 330ohm resistor 2 still new . But the problem is they get red hot like they are gonna blow up . I don't see any indication that the amp is actually on , no light and relays don't do anything. I checked if transformer primary wingdings might be bad , but i don't know both 115v primary wingdings says 1.8ohm and i don't know what it means. Also if i disconnected primary wingdings from the board the resistors didn't heat up anymore , but i checked the board and it seemed resistors should get some voltage even if the transformer is disconnected . The transformer primary has 130c fuses maybe that's the fault, maybe they are burned .
Transformer link : http://www.samodelka.ru/pictures/data/hypex_tr501a_9234.pdf
Amplifier link : http://www.arton.info/DS80_manual.pdf
Thank you for your help ! 🙂
Attachments
Okay, so i took the main amplifier board out and now the green light is on. Also resistors won't heat up anymore . I checked the voltage from Filter board where capacitors are and goes into main amplifier board , and it showed over 120vdc , and there was also ground and vdr wires and it showed 50.5 . Seems like the control panel board is powered up correctly . I don't want to think that the main board is toasted and i think its not , everything seems to be fine there . So there be must be something where the big caps are located .