Month: November 2021

So pulled the chassis on the Blackstar HT Studio 2…

So pulled the chassis on the Blackstar HT Studio 2…

So pulled the chassis on the Blackstar HT Studio 20 for diagnostic relating to the intermittent buzzing as the amp warms up. Checking the output bias it was a little on the cold side so adjusted. The noise was only affected by the master volume control so suggesting the issue lies with the output section. […]

Blackstar HT Studio 20 on the bench today@shroproc…

Blackstar HT Studio 20 on the bench today@shroproc…

Blackstar HT Studio 20 on the bench today@shroprockdoctor. Initially couldn’t find the reported issue, a buzzing noise that appears once the amp warms up. Played a guitar through it fot 20 minutes still nothing. Left it running with no jack in the input & went for lunch. Returned 40 minutes later to this. View this […]

Little Peavey Vypyr 15w combo modified & repaired….

Little Peavey Vypyr 15w combo modified & repaired….

Little Peavey Vypyr 15w combo modified & repaired. This little amplifier came in with an intermittent fault where the DSP would crash & lock up the amp requiring a power cycle to revive it. The fault lay with failed soldering on the DSP board with the root cause being chassis instability allowing flexing of the […]

A little 15w Peavey Vypyr modeling amp in for inte…

A little 15w Peavey Vypyr modeling amp in for inte…

A little 15w Peavey Vypyr modeling amp in for intermittent power outage causing DSP crash with no recovery unless power cycled. Diagnosis started with the power supply / power amplifier board. Removed & reflowed rear suspecting a dry joint, slight flexing of the chassis caused the fault to occur. Doesn’t appear to be the power […]

Line6 DL4 pedal in for repair relating to a noisy …

Line6 DL4 pedal in for repair relating to a noisy …

Line6 DL4 pedal in for repair relating to a noisy output. The left output exhibits noise superimposed on the output signal when the effect is engaged but the right output is normal. Both outputs are clear with the effects bypassed but this pedal boasts true bypass by means of a pair of mechanical relays. The […]

Behringer power amp board rebuild progress. 3W res…

Behringer power amp board rebuild progress. 3W res…

Behringer power amp board rebuild progress. 3W resistor & Mosfet had to be ordered in but board traces have been repaired & other small components burned out by the output short have been replaced. #behringer #bassamp #bassamplifier #amprepair #bridgnorthbusiness #shropshirebusiness #audiorepair View this post on Facebook

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