High voltage adjustment ok k6100? HV Probe required?

jehuie

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High voltage adjustment ok k6100? HV Probe required?

I'm just finishing up a cap-kit on a k6100 monitor which included replacing the HV adjustment pot inside the HV cage. I seem to remember that there was a way to adjust the voltage without having to have a HV probe. It had to do with measuring another voltage on one of the other outputs.

Am I dreaming this up? Or do I need to go invest in a HV probe now that I swapped out that pot?

Thanks guys!

John
 
Use your meter. Set it to DC200. Turn the HV pot down. Put the black lead of your meter on the monitor frame. Follow the orange wire from the red connector on the HV cage to the 2-pin connector on the neckboard. Put your red lead on the solder point where the orange wire connects to the neckboard. Now, using a long handled flathead screwdriver (with insulated handle) or adjustment tool (with the mesh cage off), adjust the HV pot up until the voltage reads +180vdc (approx). Done...
 
Use your meter. Set it to DC200. Turn the HV pot down. Put the black lead of your meter on the monitor frame. Follow the orange wire from the red connector on the HV cage to the 2-pin connector on the neckboard. Put your red lead on the solder point where the orange wire connects to the neckboard. Now, using a long handled flathead screwdriver (with insulated handle) or adjustment tool (with the mesh cage off), adjust the HV pot up until the voltage reads +180vdc (approx). Done...

Now them's some clear instructions. Thank you kind sir!
 
...assuming everything is working properly and hte B+ reflects the HV....

right, but it tends to work well enough.

I normally never bother with this anyway, and typically just make sure my HV probe reads at least 16-17kv or more--it's surely inaccurate, but close enough.

6100hv.jpg
 
Ok, question....I rebuilt the monitor and just randomly set the HV pot somewhere on the low side of the middle setting with the intention of coming back to adjust it as described above. But then I noticed the monitor was working and I got all excited and caught up in playing a couple games and it got late so I turned it off.

I haven't yet gone back to adjust the HV. How important is it that I do this? Am I risking damage by playing it without going and fine tuning this?

Also, how important is the HV cage cover? It's missing on mine. Am I going to get x-rayed to death or anything?
 
Ok...I adjusted the voltage up as high as it would go...but I can't get it to go higher than 157 volts. Does that indicate that something else is failing?
 
When you rebuilt it, did you replace that HV pot?

Yep. I did. I did not replace the flyback though. Is this a likely culprit? The monitor looks nice most of the time but once every 5 or 10 minutes it will flicker out just for half a second or something too.
 
Yep. I did. I did not replace the flyback though. Is this a likely culprit? The monitor looks nice most of the time but once every 5 or 10 minutes it will flicker out just for half a second or something too.

i was having a problem that was about the same, check the connector with the orange and red wires going from the HV to the neck board and make sure their not coming out of the sockets, mine was doing that and after i spliced the wires together my B+ is at 181
 
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