No signal passes...just alot of high freq noise.

[packagebear]

Hi,

I just finished my 1st J99( i have 8 A12's, 2 N72's as well)
I did all the end tests and adjustments but alas I'm getting no signal to pass through the pre at all. I only get a high freq static noise.
I'm using the AD797's.

Any ideas on what to try? I'd appreciate it.

thanks
kris

[tpryan]

Did you install the correct parts at C21, C22, R27 and R39?

[packagebear]

hi tim

I just double checked those components they're the correct ones.

what should I try next?

thanks
kris

[tpryan]

Can you post a photo?

[packagebear]

sorry I just got my hands on a camera.. here are a few pics unfortunately these are the best ones i could get





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let me know what to try
thanks again
kris

[tpryan]

It's hard to see from the photo, but I think you have the jumper on the wrong pins at J1 and J2. Is it shorting the pins closest to the input transformer? If not, it should be.

[packagebear]

on the nose tim... Can't believe I missed that. It;s all good now and sounds great
thanks so much
kris