SOLVED - A Good Crack Gone Bad

[Mattrox217]

Hi all, I've had my crack+speedball for a little over a year and suddenly it has stopped working properly. I had perfect measurements when I first put it together and put hours of fantastic listening on it but now it's dead. As of tonight, I'm getting bad resistance measurements. I'll post the results below. I have already gone through to check all solder points; all seem to have plenty of solder. Troubleshooting this is beyond my electirc skills, so I'm turning to you all for help. Sincee I realized that there were resistance issues, I have not applied voltage to the amp, so I haven't tested the speedball voltages. You'll see below that there is obviously something wrong with all of the terminals that should read 2.9.

Terminal | Current Reading | Correct Reading
1 | * | *
2 | * | *
3 | 0 | 0
4 | * | *
5 | * | *
6 | 2.48 | 2.4
7 | error, non zero | 2.9
8 | 0 | 0
9 | error, non zero | 2.9
10 | 2.47 | 2.4
12 | 0 | 0
13 | climbing | climbing
14 | 0 | 0
20 | 0 | 0
22 | 0 | 0
B3 | error, non zero | 2.9
B6 | error, non zero | 2.9
RCA Ground | 0 | 0
RCA Center | 95 | 90-100

[Paul Birkeland]

The Speedball manual doesn't really specify much in the way of resistance measurements.  You'll need to post your voltages instead.

-PB

[Doc B.]

PB is correct here. Some of the resistance measurements will change quite a bit from the numbers in the basic Crack kit manual.

When you say "dead" do you mean

-no sound but tubes glowing and LEDs glowing?
-no sound but tubes glowing, LEDs not glowing?
-no sound and tubes not glowing, LEDs not glowing -blown fuse?

[Mattrox217]

Thank you both for your advice, I went ahead and applied power to the circuit and voila, it's back to it's former glory. I think I must have had a slightly loose connection that slipped somehow and when I checked the terminals to add a bit more solder I must have hit the culprit. Happy listening, Doc and PB.