Bumblebee Not Working

[BrianS]

No idea what the heck I did to this. It will bypass but once switched on I get nothing. My voltages are way out of wack from the ones that I found from another post. I used a Road Rage to change the power input. This just blows me away. Maybe I have the Road Rage hooked up wrong but I followed the instructions. Any ideas on how I screwed up this 25 part build ? Here are the voltages I am getting:

Q1                       Q2             Q3
E - 8.56                E - 8.66      E - 9.15     
B - 8.46                B - 8.56      B - 9.10
C - 8.16                C - 8.13      C - 9.10

[midwayfair]

Uhhh ... you need to put a chip into the road rage ...

[BrianS]

Ok Jon. I feel real stupid. If you go back to page 4 of the build doc it says to solder D1, D4, C1, C2, C6 and C7 and omit everything else for the voltage change. That's why I didn't put one in. I hope I didn't fry the transistors. Thanks for the help.

[midwayfair]

Ok Jon. I feel real stupid. If you go back to page 4 of the build doc it says to solder D1, D4, C1, C2, C6 and C7 and omit everything else for the voltage change. That's why I didn't put one in. I hope I didn't fry the transistors. Thanks for the help.

Nah the trannies will be fine

[BrianS]

Put a LT1054 in and still the same. Get bypass, switch on nothing.

[midwayfair]

Measure your voltages at the -9v pad without it connected to the circuit.

[BrianS]

I don't understand what you mean by not connected to the circuit. Could you please explain what you want me to do? Sorry for being a pain.

[midwayfair]

Disconnect the road range from the bumblebee board. Make sure the road rage is working. There's no point in troubleshooting the fuzz if the power supply isn't working properly yet.

[BrianS]

Ok. Will do when I get home today. Thanks.

[BrianS]

I am getting a -9.1v.

[midwayfair]

okay. Reconnect it to the PCB. Are you getting -9V on the power rail, and 0V on the ground points?

[BrianS]

Yes. -8.89 and 0 on ground Pts. all transistors are still registering positive 9s.

[madbean]

The only way that can happen is if you have crossed the -9v and G wires from the RR to the BB board or if you have reversed the leads on your DMM when measuring voltages. Make sure that -9v on the RR board goes to -9v on the BB board and G to G. With your DMM use the black lead for ground and the red lead to measure the collector voltages on the transistors. You should now read negative voltages.

[BrianS]

Screwed that up. Now the -9 from RR is going to the -9 on BB and G from RR to G on BB. Now I get a 0 on all transistors except a -.05 on Q1 and Q3 base. Still bypass but zero when switched on.

[luks999]

can you post some pics again from pcb up / down and the wiring (especially RR) ?
when you measure the supply voltage on the pcb, what does it show?