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Re: E4420B, A12 synthesizer/doubler schematic


 

On Sat, May 18, 2024 at 08:54 AM, Four Designs Company wrote:
Do you have access to a thermal camera? A thermal signature may provide a clue as to the area of the short.
If you can power this board up while examining it, if it's all just low voltage, just try feeling for hot components. If that doesn't work, try flooding it with some sort of low boiling point solvent, like IPA or Naptha, and watch for any area where the solvent seems to be trying to move away. This can be more obvious than you'd expect.

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