Re: Help for DC503A universal counter repair


Hi everyone,
I have isolated the "Blanking" output from U1520 (pin 11), obviously the non-significant zeroes remain on (visible on the display), but in this way the frequency meter works well and the display remains on. But there is a second problem, FREQUENCY, all AVG functions and TIME MANUAL work OK while instead the PERIOD B, WIDTH B and TIME A - B functions do not work.

Do you have any advice for the repair.

Thanks for the attention.
-- Cheers

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