HV does not come on for Daytek 1731-D monitor?

Afraid you may be right.

ticking is now up to 4 times a second.

Neglected to mention that recently now and then the monitor would make a sound, zzziiiitttt and tthe image would get small and pull way to the right, then another sound and return to normal. Not often, just once in a while. Thought that was topical contamination buildup, so I disassembled, cleaned as possible, reassembled and hasn't done that for some time, but has done it again.

Confusing the issue is the intermittent pot controlling the blue gun. One of 3 of those really really cheap pots on the PCB on the neck seems to go open and loses the blue gun. Tap slightly and it comes back.

Very difficult to remove that board, it's glued on, and soldered into the RF Shielding.

Will do that dark room test. May be imagination, but swear the unit has been running hotter than originally. Does that relate?

Robert

I have seen a lot of these Daytek 17 inch monitors. All dead, and all with the same problem.

...and that problem is?

I tried the dark room to 'see' the arcing if any and did not see any.

I did note the HV transformer has a cracked mounting tube, no idea when that occurred. The crack appears to be completely mechanical and not even have voltage around it, just looks like a poor choice of plastic.

Listening closely to the tic this time, the tic sounds more mechanical, like a relay, than arcing

Seriously, what is the same problem?

- Robert -

The same as your problem. HV does not come up. I did not find parts or a service manual at the time, so I did not investigate further. Looks like the service manual has popped up on the net since then.