Quote:
Originally Posted by Bob Carriere
Final questions.... are there any fuses inside the control box used on the wooden board for training... the control box has the 3 earphone connectors coming out the side and in the parts manual is referred to as .... control unit 3A MK II..
Bob C.
|
No, the only control units with a fuse inside are the No.1 family (1, 1A & 17). The No.4 does not have a fuse and has the 12V supply wired straight through. The fuse is present to protect the wiring harness against short circuiting pin 10 (+12V) to ground if _only_ a single control unit (1, 1A or 17) is in use and the control unit is switched to either the the IC or B position.
On the headset front, check the earpiece continuity with an ohmmeter, infinity means it's duff, remove and faulty ones (undo the nuts and disconnect the wiring then spring the headband clips to remove the earpiece from the headband), and replace the faulty one with a "known good" earpiece from another headset.
Chris.
04-02-14, 02:08
Similar Threads
Threaded Mode