cornblakes6 wrote:
Thanks– im a bit confused on the first part of the response....can you clarify which legs are the base and emitter?
Sure. Since the two transistors are mounted in opposite orientations, the order of the legs is different as viewed. From left to right:
Q1 (lower transistor): collector, base, emitter
Q2 (upper transistor): emitter, base, collector
Both collectors are connected directly to the pedal power source, so you should be seeing ~8.7V there based upon the other readings you've posted.
Here's what I see for the transistors in my own LMOD. Note that I'm using a "hotter" power supply than you are:
Q1C: 9.94
B: 3.28
E: 2.84
Q2C: 9.94
B: 3.31
E: 2.87
cornblakes6 wrote:
Also I redid the volume pot and got the following
-Left Lug: 3.92
-Middle Lug: 4.77 (was 0 before)
-Right Lug: 4.32
The values should really be closer than that. On my own LMOD, those three lugs of VR3 differ by no more than 0.04V at any setting of the pot sweep, while yours differ by as much as 0.85V. This discrepancy leads me to believe that there might be something wrong with the connections/soldering around that pot. The PCB connections look OK in your photos, but I'd reflow them anyway, if you haven't already. A photo of the connections to the pot lugs might be useful.
One other thing I see is that you have a lot of excess wire on your connections, and that all has to be tucked between the PCB and the pots & jacks. That can lead to a lot of stress on some of the joints or even some shorting in some cases. So you may wish to redo that wiring if nothing else seems to be working. If you do, there's some detailed "how to" guidance here:
viewtopic.php?f=9&t=52513
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