I've got one on my bench. The HPF works fine but the LPF isn't passing signal. The filters look to be sealed shut, so I'm not sure there is much can be done, but having a schematic to look at would be helpful. Does anyone have a schematic for the 4200 or 4201 filter? Also, does anyone have experience repairing these?
Looking for schematics for HYCOR 4200 filter
- Thread starter floyd
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