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       #Post#: 1688--------------------------------------------------
       275 watt zw problem
       By: 70gtvert Date: November 20, 2017, 8:45 am
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       picked up a zw needing some work, the common strip and the abcd
       strip all needed their contacts resoldered. Once done, all
       controls functioned as per the instruction, well, all but 1. I
       now this was touched on, but I'm going a little more in depth
       here. The red light does not go on when I deliberately short it.
       In fact the contacts on the circuit breaker stay connected. If I
       have this down correctly, the strip of spring steel they are on
       should, when hot, pop the points open breaking the circuit and
       triggering the light. They stay closed. I've ordered a modern
       solid state circuit breaker to replace it with but here is part
       2 of the issue. When it is shorting and I manual open the
       contacts the red light still does not come on. Yes, the bulb is
       good. I've reviewed the schematics and don't see any wiring that
       is not were it is supposed to be nor breaks in the wiring so I
       doubt anyone has worked on it prior to me. I've even gotten the
       bulb to come on but not in a short situation. I did so by making
       the base contact slide over and touch the mount the bulb is
       supported on. When I do that it ties the bulb into the accessory
       dial and as you turn up the voltage to the accessory dial it
       will burn out the light. Got to be some electrical gurus out
       there somewhere.
       
       #Post#: 1689--------------------------------------------------
       Re: 275 watt zw problem
       By: TrainLarry Date: November 20, 2017, 1:10 pm
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       Double check all the wiring.
 (HTM) http://pictures.olsenstoy.com/cd/transfmr%5Cpszw2.pdf
 (HTM) http://pictures.olsenstoy.com/cd/transfmr%5Cpszw2.pdf
       If properly wired, the red pilot light will come on when the
       breaker trips. There is no way it cannot come on.
       Larry
       #Post#: 1693--------------------------------------------------
       Re: 275 watt zw problem
       By: 70gtvert Date: November 21, 2017, 9:16 am
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       Thanks for this schematic. The color callouts help. The other
       one didn't note it that way and was harder to follow the
       routing. I already found one wire not correctly routed but it
       was built that way as the place it was supposed to be hooked up
       to shows it never had any solder on it ever. I'm going to try to
       re-rout that line and see what, if anything, it does, after I
       follow through tracing down the other lines.
       #Post#: 1696--------------------------------------------------
       Re: 275 watt zw problem
       By: 70gtvert Date: November 21, 2017, 1:29 pm
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       Found my problem. It was not the wiring but in a worn out
       resister wire. Found a workaround for it here:
 (HTM) http://www.agtta.com/Tech-Tips/Tech-tip-ZW-repairs3.pdf
       on page
       3. Tried it, it works. Still going to replace the vintage
       circuit breaker with the modern one. Hope this helps anyone else
       with a similar ZW problem.
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