Customer brought this vintage 80’s bit of kit to see if could get working as had sentimental value, they felt that the preamp was dead. Plugged in and there was no light on the preamp and indeed seemingly no output. However the preamp is powered from the power amp via a special cable, and could […]
Naim Audio NAC42 / NAC110 pre-amp/power amp repair Read More »
Customer said their LK-1 “wasn’t behaving right” (pops/clicks between channels) so asked me to take a look. Several faults found (including some not noticed/mentioned by customer) on preamp board, including dead BC212L transistor shorted in the MC input (LH channel dead/buzzing), a faulty analogue switch IC DG309CJ causing popping switching to/from tuner input amongst other
Linn LK-1 preamp and LK-2 power amp full service Read More »
I didn’t get such a good vibe when seeing the corrosion presented around the externals: And naturally the insides didn’t look too optimistic… (but this hasn’t been enough to decline repair in the past) However despite being one of the worst examples (with corroded broken tracks under the 10 way IDC socket too!), neutralised all
Another Linn Kairn battery leak Read More »
A friend bought a faulty Kairn and asked me if I could fix… Sold as ‘doesn’t power on’. Now the first thing that was spotted is that someone’s been messing, with a regulator completely missing: and it doesn’t get any better (battery removed, clearly faffed with to try get working, even looks like they swapped
Could this be the worst Kairn battery damage yet? Read More »
Turns out to be plastic failure in the RV4 balance fader. An ALPS part no longer made so repaired it instead… A juggling act to remove as it is levered remotely from front panel: Can see the break in the lower side and the contacts are no longer pressing against the track Nothing a good
Quad 34 one channel not working Read More »
Another dead kairn and seeing the signs already (gulp): Yep we have sparklies! But not the worst I’ve seen. it just travels everywhere mainly along the negative current paths. Typically happens when battery is flat (not been plugged in for a long time) Cleaned up with water, neutralised with citric acid, and repair any traces
Another Linn Kairn battery leak repair Read More »
This Linn Kairn with MM/MC came in dead, apparently “was working fine and went off”. Fuse blown so took a look at the power supply (‘Slimline’ switching version) and found a number of dead parts, including both mosfets shorted, controller and a few resistors: I wanted to check the other component values against the PSU
Linn Kairn ‘no power’ Read More »
