Customer had recently obtained this excellent Sony Walkman but had slipping belts. At first thought this wasn’t going to be an easy fix, as had another walkman in the past which would have needed about 30 wires desoldered from unmarked locations to gain access! However this one we had a service manual available if needed, […]
Sony WM-D6C Walkman belt service Read More »
A friend bought this amp but didn’t do anything when plugged in. Opened to find out the power board wire jumpers were cut from the preamp board inside. That would explain it. Apparently this is done so it can be powered externally from another device, and used just as a preamp, or split the preamp
Naim Nait 3 Amp no power Read More »
Apparently the power switch got kicked/knocked by accident and now doesn’t work 🙁 Can’t get to it easily so it’s front panel off time again, 51 million screws and knobs! (The switch is secured to the chassis behind the panel with two screws) Oops 1: Oops 2: A rather hard to find lever switch (centre
The Technics SU-3500 is back Read More »
Customer didn’t find the output particularly pleasing and wanted a better speaker fitting, but not to go overboard… Old speaker out: New budget 6.5″ Eurotec 30W speaker arrived: Much beefier (probably too good for it!): Installed into cabinet and tested, customer happy.
Speaker upgrade for small practice amp cabinet Read More »
What quite shocking PCB build quality! This small amp came in dead, and whilst looks ok from the outside, the inside leaves a lot to be desired… Everything is… sort of… just all over the place: The soldering is some of, if not the worst I’ve ever seen… Even one transistor leg wasn’t even soldered:
Mini Mofo 15 watt valve amp head 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 »
Customer states problem started a couple of weeks previously with a crackling sound, thought it was one of their speakers at first but now got a burning smell when plugged it in so turned it off right away. Found R115 burned up – part of zobel network: Removed in order to clean up – it
Ampeg PF500 crackling/burning smell 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 »
