Tourbus help

[geekmacdaddy]

Hey folks,
I installed C35 (100uf) backwards and it blew up. Replaced it, and all voltages seem ok (I think) but not getting any output from pin1 on IC1, or IC 2, pin6 and 7 and, usually when you plug the pedal in, you get a flash from the "overdrive" LED, but now, nothing. Also replace C36 and C37...same results.
Thanks!

[geekmacdaddy]

I probably blew out the LED. Would that do it?

[gordo]

So the rest of the pedal is OK, just the overload LED isn't working?  I'd suspect the transistor but you should be able to check LED function with a battery (or supply) and a 4k7 resistor to see if it lights up.

[geekmacdaddy]

So the rest of the pedal is OK, just the overload LED isn't working?  I'd suspect the transistor but you should be able to check LED function with a battery (or supply) and a 4k7 resistor to see if it lights up.

Well yes to the rest of the pedal, sans any output on pin 1 of IC1 or 6 and 7 on IC2...I changed the LED...still not getting juice. Thanks for the help

[gordo]

Damn, I did read the pin 1 bit and totally blew thru it.  What chips have you replaced?

[geekmacdaddy]

Damn, I did read the pin 1 bit and totally blew thru it.  What chips have you replaced?

All but 2 of the opamps (I've never blown one of those). My readings were all good.

[jimilee]

Damn, I did read the pin 1 bit and totally blew thru it.  What chips have you replaced?

All but 2 of the opamps (I've never blown one of those). My readings were all good.

This is just a stab in the dark, but is it safe to say you remembered to use the bi-polar cap in the right spot? I screwed that up last year.


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[geekmacdaddy]

Damn, I did read the pin 1 bit and totally blew thru it.  What chips have you replaced?

All but 2 of the opamps (I've never blown one of those). My readings were all good.

This is just a stab in the dark, but is it safe to say you remembered to use the bi-polar cap in the right spot? I screwed that up last year.
I did, thanks.


Sent from my iPhone using Tapatalk

[jimilee]

Damn, I did read the pin 1 bit and totally blew thru it.  What chips have you replaced?

All but 2 of the opamps (I've never blown one of those). My readings were all good.

This is just a stab in the dark, but is it safe to say you remembered to use the bi-polar cap in the right spot? I screwed that up last year.
I did, thanks.


Sent from my iPhone using Tapatalk

You broke it.


Sent from my iPhone using Tapatalk

[geekmacdaddy]

Damn, I did read the pin 1 bit and totally blew thru it.  What chips have you replaced?

All but 2 of the opamps (I've never blown one of those). My readings were all good.

This is just a stab in the dark, but is it safe to say you remembered to use the bi-polar cap in the right spot? I screwed that up last year.
I did, thanks.


Sent from my iPhone using Tapatalk

You broke it.


Sent from my iPhone using Tapatalk

Hahahahahhaaaaa! I did! Thank you  I needed that!