phmadeira

Hifi Power supply unit problem Hello i do have a hifi amplifier two compoennet is geting hot very fast, as soon as i start the amplifier One transistor had failed I changed it , but as soon you start the power , it is getting verry hot on the schema it is the Q5 ans also R10 is getting hot Any idee , i did have problem to understand R16 ,D5 look ok i did have 15volt on U1 pin 15 on my bord R42,R43 and Q7 is missing or shorted somehow see the file here https://drive.google.com/file/d/0B2Cwu0IkTCvtV0xGOGFTREVEcWs/view?usp=sharing You can find the full service manual just google labgruppen_fp2400q_v02_amplifier_service_manual thank you