Does not always latch on, momentary footswitch seems ok eg physical switchpoint, zero ohms on , the latching is via RC and taking an input to a
74HC00 low. I don't like the indirect footswitch ground line via 2x 1/4 ins sockets and casing but nothing loose. Is this a known failure ?.
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on
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