I have two of these and one will not power up. I checked everything and found that a zener diode labeled 752a was bad. I pulled it and have been looking for the same part. I have found several with the number 1n752a but there 5.6v. my other 2 XS that works shows 13v+ on one side and -14v on the other side. I have found other zeners that are 1n5244b. Would it be a zener rated at 14v? Sorry if this is a noob question, im new to repairing and this is my personal stuff.
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