Arion SCO-1 schematic

[stevenrb718]

Anybody have the schematics for the Arion SCO-1 Stereo Compressor pedal? TIA.

[stevenrb718]

Boss FRV-1, bypass works, effect signal works. However, when the effect is on, there is also a repeating, pulsing sound continuously. The sound is similar...

[Rhunatum]

Hello everyone! I`m making a tube amp for my graduation work and I decided to make a Matamp based one. I only found schematics for the non-master volume version...

[allprobbob]

***Quick bio - former electronics/radio tech and lifelong tinkerer. That said schematics and voltage chasing was never my strong suit. More of a "poke...

[clarisso11]

Hi everyone,

I've been working on repairing a Boss DD3 delay, here is the service manual: https://www.synthxl.com/wp-content/uploads/2018/04...

[stevenrb718]

I got a Boss PS-2 that seems to have a weak effect signal. The bypass is fine, as the is the bypass in the mix, but the effect seems awfully soft. In the...

[clarisso11]

Hi everyone,

I'm currently working on an EHX Small Stone Phaser, made ~1980. I think this is close to the "Issue J" circuit, with "EH1048"...

[clarisso11]

Hi everyone,

I've been working on an Arion SCH-1 chorus pedal from the 80s. It had a sketchy footswitch, so I decided to convert the whole thing...

[TwinJunior]

Help please! My reverb channel doesn't seem to be working properly. I can hear the reverb responding when i tap on the tank but it's not affecting the guitar...

[Jaoon]

Hey Guys,

so i finally tried to fix my old Valvestate vs100. Iam far away from an Expert. I can repair my guitars and stuff but never tried...

[clarisso11]

Hi everyone,

I recently bought a used Peavey Classic 30, since I heard good things about the amp.

When I turned it on it hummed...

[focusbob]

Hi, I purchased an Ibanez DMD2000 second-hand knowing that it had issues. Sadly for me, the main issue is that the modulation simply doesn't work:
...

[stevenrb718]

Anybody have a schematic for the Digitech RP20 Valve pedalboard? Mine was working, then it started to seem to "have trouble" staying on, where...

[clarisso11]

Hi everyone,

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

[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,...

[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...