Telefunken U48
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Mar 9, 2018, 2:24 AM
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"Short anode lead to chassis only"? CRT discharging question.
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Hi.
I once had a Daewoo television that needed some work. I discharged the anode cap (Using the classic screwdriver + Wire) to the braided wire that wraps around the tube. Heard the pop, assumed everything was good and I poked around the TV, reflowed a couple things, took some parts out of circuit to measure them, etc. When I tried turning it on, it was 100% dead. (Whereas it wasn't before)
Inside the casing, it had warnings about X-radiation, tube implosion, etc. and also a warning "CAUTION: SHORT ANODE LEAD TO CHASSIS ONLY." I've always heard you should only short to the CRT ground, because shorting to chassis ground may damage parts.
So, now I have another Daewoo TV (just a little project) with the same warning, and I'm not sure how I should discharge it- the conventional method says shorting to chassis ground may damage parts, and the warning in the case says I should only short to the chassis ground.
Of course, I could have damaged the first TV in some other way, but I want to be sure.
Here's a link to the service manual-
https://www.manual.guru/download-manual-10/458914/not-specified-daewoo-crt-television-dtq-14v1fc20v1fc.html?download#.WqHfMXzavyM
It doesn't even mention discharging the CRT at all.
So, where do you think I should clip the wire to?
Thanks
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