Boss DM2 Analog Delay Repair - Low supply voltage

[clarisso11]

Hi everyone,

I've been working on repairing a version 2 Boss DM2 analog delay, service manual attached. After sorting out a short at the potentiometers,...

[clarisso11]

Hi everyone,

I've been working on repairing an original Ibanez FL-9 Flanger, and I'm quite stuck, to say the least. Here are the symptoms:

• Only

...

[stevenrb718]

I have an Ampeg SVT-350H that isn't outputting to the speaker jacks. It outputs through the power amp out jack, so the problem must be in the power...

[clarisso11]

Hi everyone,

I've been working on repairing a Ibanez PT-9 Phaser, and have already made a lot of progress, thanks to help from this forum!...

[clarisso11]

Hi everyone,

I've been working on repairing an old Ibanez PT9 phaser (service manual attached). The unit had leaking capacitors and damaged tracks,...

[clarisso11]

Hi everyone,

I'm currently working on a 1978 V5 Electro-Harmonix Electric Mistress. Thanks to the help of this forum, I have already made a lot...

[evil79]

Did work on a 4100 JCM900 w/5881’s. Cap job, replaced tubes, replaced a few burnt resistors, resoldered almost all solder joints, cleaned jacks and...

[clarisso11]

Hi everyone,

I recently got an Electric Mistress for repair, and had a question regarding voltages:
When I first got the pedal, one of...

[evil79]

[Queen*Son]

Well I took the amp out anticipating a new tm1 for the tremolo and I wanted to look at some of the mods that were done.. of the 3 1/4" jacks 1 is for...

[clarisso11]

Hi everyone,

I've been attempting to convert a EHX LPB-2 power booster from the 70s to true bypass, and add a DC jack. I was hoping this would...

[clarisso11]

Hi everyone,

I've been repairing an Echoplex EP3, and after lots of help from this forum, I have identified a dead record/erase head as the...

[clarisso11]

Hi everyone,

I hope this will be a quick one for someone with experience working on tape echos:

I've been working for a while now...

[clarisso11]

Hi!

I've been working on building an amplifier head around a Blues Junior PCB I got for cheap some time ago. With the help of this forum and...

[gojirajesus]

Hi, I have a Session Rockette 30, a British solid state amp from a couple decades ago. In the last few months, I have noticed a consistent humming/crackling...

[clarisso11]

Hi everyone,

many months ago, I purchased an old Echoplex EP-3, in very bad condition. I took it apart and de-rusted/cleaned everything, exchanged...

[clarisso11]

Hi everyone!

I've been working on a Japanese made Boss DF-2 lately, and was hoping to get some insight from someone more experienced in electronics...

[clarisso11]

Hi all,

I've just come across this great forum, and was wondering if anyone could be of help with the project I'm working on.
I have done...

[simonflower]

Hello everyone, I’m Simon and I’m new here so I apologise if I do something “wrong”...
I just bought a Hot rod deluxe and it make a very loud noise...

[KM22]

Hi Folks,

Trying to fix up a WT-1000 with one noisy / blown channel. Can get signal through to speaker but no real gain and all distorted....

[ptaf]

Hi to all!

The above mentioned guitar amp was given to me for free. It is an old practice amp made by Fender in Mexico. Says model PR 241 on...