Crack - Speedball Voltages - no sound left channel (resolved)

[ostoich]

Finished removing and reinstalling the big board. Tested voltages again while big board was out and everything looked pretty normal.

After reinstalling the board.. had the same results. Same voltages. Same very very hot 270ohm resistor.

[ostoich]

Replaced the LEDs on the dark side of the board and hot damn.... resistance - check... voltages - check. SWEET MUSIC.

Now to try out this Tung Sol 5998 that's been sitting on my desk since I started the Speedball process. Can't thank you enough for the help PB.

[Natural Sound]

Good job, Eric! Have you tested the LED to see if it shorted or opened?

[ostoich]

Good job, Eric! Have you tested the LED to see if it shorted or opened?

I assume it was a complete short. I really don't have any technical knowledge when it comes to electronics. The Crack was my first project - the Reduction I built a couple weeks ago went much better after the first build. I just figured it was time to install the Speedball upgrade.

I tested D1 with the diode test on my multimeter and I couldn't get a reading. I did get a reading on D2. Though after replacing D1, it lit up, but D2 didn't and the voltages were off. After replacing D2 - everything lit and voltages were spot on. Glad to have this back. Had a lot of music to listen to before going to Forecastle Festival in July.