All the voltage tests are done with power on. The meter is trustworthy. It’s just a no-frills unit without the continuity test function. Any inconsistencies are more likely caused by me. I’ve checked everywhere for shorts but all the solder joints are fine. Nothing is touching anything it shouldn’t. I’ve checked all the voltages again and here’s where it currently stands. Pin 5 of U2 is 2.4v. R28 is .45v. With bypass LED on, both optocoupler LEDs read 0v on the square pads. R7 and R8 also read 0 volts. I cut holes to check and there is no light. So, there is no voltage passing through that circuit. All other voltages read as the diagram in the troubleshooting guide illustrates. Do you think U1 is not working properly? There is zero output when hooked up to guitar and amp wether in bypass or normal. I hope you have a clue, because I’m stumped.
Thanks,
Peter