Quote:
Originally Posted by EdKozk2
Hi Crist,
You said you heard clicking? Does it sound more like ticking, intermittent or continuous? I ask because if you stuffed the old doorknob with a modern ceramic or mica cap, you may have arcing between the cap leads. When I repaired my Admiral last fall I used a 15kv cap as a substitute for the old doorknob. When I first tested the set I would hear ticking. Lowering the brightness would increase the amount of ticking, increasing would decrease the amount. I had to operate the set on its' side and in darkness to see the source of the ticking. Turned out the gap between the capacitor leads right at the body of the cap needed a greater gap. The proper dressing of the leads solved the problem I had. I didn't reuse or stuff the old doorknob. I mounted the cap under the chassis.
Ed
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Ed,
The clicking I heard was as if a mica cap goes bad. I was touching the ceramic cap on the big coil on the tuner (I forget the name) and got the clicking sound. It also could be coming from somewhere else.
I didn't have the door knob cap installed at all. I'm still waiting for them to arrive. Good info though. Thanks.
BTW, the HV on this TV is listed as only 7.5Kv so the possibility of arcing between the 20Kv leads should be reduced by a lot.