The DSO1152s oscilloscope came with a non-working channel CH1. CH2 is working correctly. Self calibration test aborts at step 23/34 with error 0x502. It is possible that an overvoltage was applied to the input. Faulty elements were replaced: R133, R201, R487 in the input circuit, then without the necessary information I have difficulty.
I look forward to your help with the next steps.
Post time 2022-3-14 15:53:31
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