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Messages - greybox

#1
I know...it was more just wondering how far down the path I was going to have to go, $5 here, $8 here...I only had $50 into the amp to start with....
#2
Amps are all working now, did a pickup swap and strat mod yesterday...now I just have some playing left...what fun is that...
#3
WOOHOOO!!!!!! Fixed - new chip in and sounds fantastic (and I upgraded the chip to a TL072)! and because I started troubleshooting with the pots and input jack it has no scratchiness left either!

and just as important I have accomplished my first ever amp fix! (changed the tubes and speaker on my VOX before but other than that nothing else)

Thanks for the help guys!
#4
I lucked out and actually got the replacement chips today, I ordered them just in case. I will work on it tomorrow and fingers crossed have an orange amp again
#5
Modified my post to show negatives in previous post. speakers = no measurements (randomly .1 - usually 0 though)
#6
okay - tested chip starting top left and going counter clockwise (touching high on pin next to chip body)
pin1 = .2
pin2 = 0
pin3 = 0
pin4 = -17.3

pin5 = -17.2
pin6 = 0
pin7 = -16.1
pin8 = 16.3
#7
I might have spoken too soon only in the fact that if the legs are all making noises than how big of a problem am I looking at (Yours looks in working order, just with a small repairable defect.) that's all I was hoping for - thanks. I will check into getting a voltage meter soon.
#8
All of the pins except 1 made noise - so do I give a new chip a try? I don't have a voltage tester and am starting to question whether its better to keep working on it or find a working amp cheap on craigslist and put the electronics in the orange cab with the orange speaker...I don't mind working on it, just trying to decide if this is going to become a(very low end) money pit....
#9
Finally had time to check all of these - all pins EXCEPT 1 make tick, thump or buzz some louder than other but all are present. (and i did remove the bridge across the input jack legs first)
#10
That solder joint was a last ditch effort to see if that was the problem - I found a site that said to connect the pins on that side of the jack. No problem removing that - the tabs either, just wanted to get it working before I messed with little things like that.

I will work on it over the next few days, thanks for the input so far, it helps.
#11
Sorry it took so long - any help?
#12
Thanks for the help, I will try to get some photos this weekend and upload them. When I contacted the orange website I got this response from a dealer.

(I've worked on a lot of these and about the only two things that go out on a CR10 is a pot or the opamp in the U2 position - response from orange dealer when I posted on orange site)

I have no idea on wiring myself and circuit boards, I do fine with soldering and guitars electronics though and I redid the pots and input jack so I am willing to learn.
#13
The pots for gain/volume were a little scratchy when adjusted but not bad - then 1 day - poof no sound!

I changed the input jack, no fix. I changed the volume pot and gain 1 - no change - but while I was holding the circuit board in my hands a radio station started coming through the speakers/headphones - my thumb was obviously bridging something on the circuit board - but it was over the volume and gain pot area so this leads me to believe that the problem is still somewhere between the input jack and its entry into the circuit - any ideas?

When I turn the pots the sound is getting from the pots to the headphone jack (speaker disconnected as electronics are out of cabinet) but still nothing from input to pots as far as I can tell.