Is an overheating IC a dead IC? Boss DF-2 repair

[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...

[Jesse Pearson]

Hey guys, I was given a blown up Ensoniq SQ2 synth to keep and fix. The SQ2 went out at a gig. I checked it out the next day and the screen still worked but...

[evil79]

Hey guys, been away for a while. So I have this Bedrock 1400 head on my bench. There's very little info on these amps, certainly no schematics that I can...

[Chodrick1]

I have a stock Mojotone 5E3 kit that I've assembled. It plays fine, but it's very, very clean. All headroom and no distortion. I can turn volumes and tone...

[nicksaysword]

Alright, so after testing out a bass guitar [an Ibanez] on this amp [Fender Champion 30] to make sure the bass guitar worked properly, the amp appeared to...

[Barnaby Jones]

Hello,
So I am attempting to repair an SVT-3 pro. I think the input jack was broken and just wanted to check it to see if the connection was intermittent....

[slidincharlie (Carlo P)]

G'day all
I have a '79 Fender Deluxe Reverb amp. The problem lies in the tremolo circuit (or so it seems).
The tremolo is on (optoisolator bulb...

[newlooper92]

I have just recently began to use the RC 300 loop station.

I had it working fine the first few times, now I have gone back to it, and the output...

[oldsmobuick]

I bought an older Fender Roc Pro at Goodwill that was blowing fuses and I have it apart now for troubleshooting. The C->E resistance on all 4 output transistors...

[ewd]

Looking for assistance for a KRK (Owned by Gibson Corp) Rockit 8 powered speaker. Trying to identify the two IC's (Amplifiers?) on the Main/Power Supply PCB,...

[ewd]

Looking for a schematic for a KRK (Owned by Gibson Corp) Rockit 8 powered speaker. Trying to identify the two IC's (Amplifiers?) on the Main/Power Supply...

[jessguinness]

Hey everyone,

This is my first post on this forum, and probably my first post related to amps in general. I've decided to post because I've...

[telesupro]

Hello Everyone,

I’m a new guy here, just joined. I’ve been perusing for a long time though. I posted a thread earlier today but it seems to...

[telesupro]

Hello Everyone,

I apologize that my first post is a plea for help, but I really need it and a lot of my Google searches led me here, so I thought...

[smith5414]

Hello, just joined this forum to see if anyone could help with a problem I am not sure if this is the right section. I recently bought a used ampeg svt-cl...

[Mr Johnny Birchwood]

Hey guys, I'm experimenting with a huge old GE transformer i found in a junk pile. The tranny puts out 480VAC and is rated at 250VA. No center tap on the...

[Mr Johnny Birchwood]

Building a 5E3 clone on an old Hammond 6v6 push-pull chassis. Chassis is unidentified, just using the steel box and the power transformer. No ID markings...