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Found 1 result

  1. Hello guys! Now it's my turn to seek wisdom! I have this CE2000 with a HV fault: The D8 10V zener diode located in the HV circuit doesn't regulate normally : I only have about 5V on the diode when 10V should be nominal. I've checked or swapped out D8, D6 and D7, the C1 cap, verified vertical resistors R1 (1K) and R2 (15K: yes, it is 15K instead of the 2.2K wafer in this circuit (latest design mod)!); I even swapped out R2 for a 2.2K with the same result: D8 still doesn't regulate! I do have high voltage on the zener diode and R2 but only 105V when I should have 108 to 110V. There appears to be enough voltage on the load side of R2 though. +VCC (rail) is at 100V (It should be nominal at 98V...) Any suggestions? Alain