Do you have continuity between any legs and the exposed metal tab on the rear of the rectifier?
No continuities on rectifiers legs or tab.
The 'regulator' isn't one part. You can measure the DC voltage on the power supply terminals of the op-amps for 2 of the regulators. Measuring from pad 5-8 of the opto-couplers will tell you if the other regulator is working properly.
Are you referring to the opto couplers by the led400? I still have those pins jump together
The regulator for the 0.38v optos is out.
Where is that located?
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