HP8720B won't phase lock

Nov 27, 2018 2 Replies

Well, it will, but sometimes it takes a few minutes. I can't tell if it needs to warm up . Does anyone know what I can check in it?


There should be a little symbol come on for the oven. Is that showing?

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I've never noticed it. Where is it? On the screen somewhere? Or inside on the PLL board?

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