Quote:
Originally Posted by Pepelephew
Hi PJL,
The resistance between pins is 0.416 m ohms
Bill
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Graham, I agree something may still be wrong. There is a 470K to earth but this is measuring less than 470K to HT. Of course the UL41 has been toasted so it's possible there is leakage.
Bill, after you have done Graham's test can you pull out the UL41 and repeat the resistance check between UL41 pin 4 (green) and UY41 pin 7 (red).