Orange Channel Not Working on my 2ch recto

[Elpelotero]

Hey guys,

BEFORE I START, I DID SWAP TUBES W. NEW ONES, AND IT DIDN'T WORK!

It is with some sadness that I post this today .

My 2ch Blackface's Orange Channel is completely not working, at all.
The Red channel works 100% perfectly.

Let me describe the situation:

I bought this amp over the summer on ebay. It worked perfectly. Recently, I had to go record down in Miami. I packed up the amps in the car, but on the way down, I had an accident wherein my small SUV rolled over 6 times. My singer and I walked away unscathed. SEATBELTS SAVE LIVES! Apparently however, my blackface was not so lucky.

We had a show several days later. I was using the other blackface I have. The tubes blew a fuse, so to check if it truly was the tubes, I put these into the now broken blackface. The fuse blew there also. I got new fuses and took the stock Mesa tubes from my 3ch recto and put them in for the show. Everything worked fine. Note that I did not play with the now broken amp at the show; I played with my other blackface.

So one week ago I take these same stock Mesa 440's from the 3ch and put them in my now broken amp. I noticed the Orange channel would not work. Today, I played the amp again and the Orange channel didn't work again. I completely swapped out the pre-amp tubes with the relatively fresh tubes in my 3ch. Orange channel still not working.

So to recap:
-Red Channel works perfectly. Lots of high output.
-Orange Channel clean mode has ZERO output, no matter the tubes I use or the volumes I put, or how I move the knobs.
-Even with Loop engaged and output all the way, nothing
-Orange channel vintage and modern modes give a very weak output. Even if I max all the knobs, I can still talk over the volume it is producing.
-It's not the tubes! and it's not the guitar!
-I have tested flicking nearly every switch on the back...nothing works
-The same tubes work perfect with the other amps.

Any Ideas? All help is appreciated. thanks

 

[diamondschwin]

i aam guessing you knocked some caps off the board when the car rolled, at any rate it will probably only be fixed by taking it to a good tech, it seems like somewhere the signal is not passing correctly and you have already eliminated the tubes.

good luck!

 

[4nkam]

Pull the chassis and see if anything is damaged or not connected. But you will probably need to have a tech fix it up. If you don't have one in your area, contact boogie and they will give you an RA# so you can ship it to them.

mJ

 

[53crew]

Maybe one, or some of the LDR's aren't switching properly for some reason? Or a component unique to the Orange channel is damaged. It has to be something unique to the Orange channel.

What happens if you set the Orange channel to Modern?
-Steve

 

[Elpelotero]

Maybe one, or some of the LDR's aren't switching properly for some reason? Or a component unique to the Orange channel is damaged. It has to be something unique to the Orange channel.

What happens if you set the Orange channel to Modern?
-Steve

Steve, if I set the Orange channel to either Vintage or Modern, I get some very low volume gain. Chords and notes sound out, but the volume is very very low, almost enough where I can talk. This happens even though I crank the knobs all the way to their max.

What exactly do you mean by LDR's?

 

[53crew]

LDR's are the relays that switch different parts of the circuit in and out...... Depending upon which channel you're using. Might be best to take it in and have a tech look at it.
-Steve

 

[Elpelotero]

thanks. I knew LDR's had something to do w/ switching from the little reading I've done about MIDI. Hopefully it's something as simple as that.