Peter Macleod
New Member
Hi folks,
I'm new to this forum, so I hope the DIY section is the right one for help in fixing faulty equipment.
So....for sentimental reasons I took a chance on an old A60 amplifier, £49 in P&P.
It is the last, 1985 model, smaller transformer and with RCA phono sockets for turntable and a CD input.
The unit powers on but no output and speaker fuses are blowing. Also there is a distinct resonance to the case when it is on. No noise, just vibration.
The power supply fuses are fine. When I got it I noticed that the white block that fits in the M.C. option slot was back to front. Hopefully nothing else is wrongly wired! I have only done 6 measurements so far, across the four diodes D204-7 and capacitors C209/10. They all measure around 40v.
Where to start? Any suggestions other than the obvious landfill suggestions welcome.
cheers
I'm new to this forum, so I hope the DIY section is the right one for help in fixing faulty equipment.
So....for sentimental reasons I took a chance on an old A60 amplifier, £49 in P&P.
It is the last, 1985 model, smaller transformer and with RCA phono sockets for turntable and a CD input.
The unit powers on but no output and speaker fuses are blowing. Also there is a distinct resonance to the case when it is on. No noise, just vibration.
The power supply fuses are fine. When I got it I noticed that the white block that fits in the M.C. option slot was back to front. Hopefully nothing else is wrongly wired! I have only done 6 measurements so far, across the four diodes D204-7 and capacitors C209/10. They all measure around 40v.
Where to start? Any suggestions other than the obvious landfill suggestions welcome.
cheers