phmadeira Posted September 1, 2015 Report Share Posted September 1, 2015 Hifi Power supply unit problemHelloi do have a hifi amplifiertwo compoennet is geting hot very fast, as soon as i start the amplifierOne transistor had failedI changed it , but as soon you start the power , it is getting verry hoton the schema it is the Q5 ans also R10 is getting hotAny idee , i did have problem to understandR16 ,D5 look oki did have 15volt on U1 pin 15on my bord R42,R43 and Q7 is missing or shorted somehowsee the file herehttps://drive.google.com/file/d/0B2Cwu0IkTCvtV0xGOGFTREVEcWs/view?usp=sharingYou can find the full service manual just googlelabgruppen_fp2400q_v02_amplifier_service_manualthank you Quote Link to comment Share on other sites More sharing options...
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