Boss ME-50 not powering up

[stevenrb718]

I have a Boss ME-50 that isn't powering up. I have 9V at various places, but I believe I'm missing the 3.3V line. The schematic I found online doesn't zoom...

[stevenrb718]

Does anybody have the schematics for the Guyatone PS-024 Disortion H pedal? Something in the back end is almost totally shunting my effect signal.

[clarisso11]

Hi everyone,

I'm working on repairing a 1981Ibanez CP9 compressor pedal, with a very strange problem: It works seemingly perfectly when turned...

[stevenrb718]

Hey guys. I have a nice Roland Jet AP-7 that's giving me quite an issue. The "distortion" effect seems to work fine, but none of the positions...

[clarisso11]

Hi everyone,

I am currently working on repairing yet another Electro-Harmonix Electric Mistress, after having repaired one in the past with the...

[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,...

[iu2]

Hi,
Something broke in my Vox AC15 custom, maybe you are familiar with this kind of problem...
I tried to plugin in an acoustic guitar with a...

[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

...

[begginerampguy]

hello! I am new to guitar amp building and have some questions about how to go about building amps.

1. how do I figure out how much voltage I...

[Shrimpfarmer89]

Hello, I have some questions about building an amp with sections from a few different amps. Would It be possible to take a solid state pre amp, add a graphic...

[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...

[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...

[yodaeatsfishstx]

Hello,

I'm posting this here because I haven't been able to find much online, so this is a bit of a shot in the dark. A buddy of mine has a Ross...

[Shrimpfarmer89]

Hello, I am looking for a replacement transformer for an old E1A606-724 / 2-24b power transformer that has 5 wires coming off it. Cant find any online with...

[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...

[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...