[Matthew CrouthamelParticipant]

Wonder if you ever got this fixed.
There is no TP1 on the 2.2 board that i can see.

[Matthew CrouthamelParticipant]

Update: GRA-AFCH sent a great troubleshooting table, specifically for this problem.
Still not working. All the lights in the tubes are lit, but no music and the RGB LEDs are not lit.

-I had C15 reversed. Resoldered it and tested it, still works.

Same problem though.

Running through the list:
1. Voltage at TP3 is 0.8 V (not 5V). I did try a second Arduino Mega with the same results.
2. D15 is okay. Double checked U7, L2, R62, R63, and C14.
3. Voltage at MOSI, SCK, and LE is 5V
4. Voltage at MOSIO, SCKO, and LEO is 10.8v.

Any advice?

Thanks,

[Matthew CrouthamelParticipant]

okay. I’m a dope. I soldered the 250V cap backwards. So probably fried something!!!

[Matthew CrouthamelParticipant]

Similar issue here. Except, the clock worked at first. It ran for a few hours. I unplugged it and stored it for a few days, and when I plugged it back in, the tubes all glowed, but no LED, no sound, just i high-pitch capacitor sound. Reflashed the Arduino. Used another arduino. No obvious shorts or burnouts. Wondering if it’s a problem with the U1/2. I may re-do them with the chips that don’t curl underneath.

[Author]

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