Re: B/W XY help

On Oct 8, 1:31pm, <jwelser@ccwf.cc.utexas.edu> wrote:
> Subject: B/W XY help
>
> Hey all,
>
> I'm trying to repair my first B/W XY monitor (it's a WG 19V2000,
> from my Battlezone,) and have some questions...
>
> Symptoms: No picture. Spot Killer isn't lit. I hear clatter in
> the neck. I already tried replacing the HV diode, and that didn't do it.
> The 40V input to the HV unit is in the neighborhood (it's actually a
> little low, but it's in the mid to high 30s so I'm guessing that it's OK)
> of where it should be. I already checked a bunch of the transistors on
> the HV unit, especially the outside mounted ones, and they're OK.
>
> I still get no picture, though. My next step was going to be to
> check the Z-amp transistor (Q504, I think it is) but I wanted to see what
> you guys thought it might be....

Resolder all the header pins on the PCB. Probably just a broken solder joint
somewhere (Well, that's how I fixed mine with the same symptoms :-))

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Mark Jenison E-mail address: jenison@cig.mot.com
Cellular Infrastructure Group Motorola--Arlington Heights, IL
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Received on Wed Oct 8 12:52:36 1997