Are my V3205's dead? Simple tests to verify?

[eeviac]

I ordered a few V3205's to experiment with and have the Dirtbag breadboarded for evaluation. I've verified that audio is reaching the input of the first BBD (though it's heavily distorted and crackly unless the bias trim is cranked). I get nothing but loud clock noise out. I've verified that the BBD is getting two clean square wave inverted phase clocks. Sweeping the clock frequency from 600Hz to 12kHz doesn't get me any delayed signal. Here's the pin voltages:

1 0V       8 8.7V
2 4.6V    7 9.1V
3 8.4V    6 4.6V
4 8.4V    5 9.2V

Running the BBD at 9V or dividing down to the recommended ~8V hasn't made a difference. A few other ICs have turned up dead during testing. How can I be sure whether the BBDs are dead or I'm just doing something wrong?

[Fender3D]

Pins 3 and 4 should be ~1/2 Vd.
check P3 and P4 (should be connected to GND)

[eeviac]

Thanks for the reply! I double checked and P3 and P4 are definitely tied to ground.

I added the 9V to 8V BBD rail voltage divider back in and adjusted the voltage swing of the clock to 0-5V. Here's the IC4 voltages I'm getting now:

1 0V        8 7.6V
2 2.5V     7 9.2V
3 3.9V     6 2.5V
4 3.9V     5 8.1V

Still get nothing but clock noise out of pins 3 and 4, no matter how I bias pin 7. Any ideas as to why, when I probe pin 7, my audio is muted/distorted/crackling unless the bias trim is at maximum (9.2V)?

[Fender3D]

These voltages look ok, well, pins 2 and 6 should be slightly higher, but they might be ok...

You say:

... when I probe pin 7, my audio is muted/distorted/crackling unless the bias trim is at maximum (9.2V)?

Then your issue is BEFORE BBD...

For BBD testing purpose, if IC1b works ok, connect its output to C14-C15 Junction, lifting R21

[eeviac]

I'll up the clock voltage swing to fix pins 2 and 6.

Jumpering from an earlier op amp stage is a great idea. I'll report back on Monday. Thanks!

[eeviac]

Didn't work, seems to do the exact same thing when jumping from a point with known good audio. I'm going to order some new parts and, in the meantime, rip everything apart and start fresh.