I went through all of the manuals. First let me clarify a few things. I do not have an MK-II, the tag on the bottom of my units says "SL-1300M."
The service manual for my model is: http://www.vinylengine.com/ve_downloads ... 407418.pdf
and especially important is this service supplement: http://www.vinylengine.com/ve_downloads ... ce_sup.pdf
, which includes troubleshooting steps and component specific replacement suggestions for the symptom I'm experiencing, "Not Rotate (33,45 rpm)."
The people at the stereo shop said it's a power supply issue, couldn't get the part, and that is probably not worth fixing; they weren't very friendly at all. I disagree after reviewing this page of the aforementioned service supplement:
If I believe their assessment, then it appears I have a clear path as to which integrated components may be at fault for a power supply issue: TR1,TR2,ZD1,D1.2, or D3.4.
However, how should I go about doing this and what should I expect? I'm assuming the first, safest, and easiest thing to do is check continuity among components as the following picture shows I'm ready to do.
The thing I don't know is which components I should expect continuity and which I should not. For instance, when probing TR2 (transistor 2) at the bottom left of the circuit board in the above figure with my multimeter's "beep we have continuity function" only the bottom two of the three solder joints "beep." 1) How can I tell which components are good or bad!?
Also, if I have to check voltages, then that means I have to plug the unit in correct? 2) Could I ruin the TT if I had to plug it in the check a voltage with it disassembled?
Any recommendations with troubleshooting are much appreciated!