27K5201 No power

[Terminatedrone]

I have a K5201 medium resolution monitor that doesn't seem to be getting any power. The marquee in the cab lights up, so I know the power cable is fine, but when I turn it on, there is no sign of life: no humm, no orange glow. I've checked the fuse, and it hasn't blown, so I'm wondering if the problem might be in the isolation transformer (since the monitor is the only thing connected to the isolation transformer output).

Can anyone suggest a replacement isolation transformer to try?

Any other suggestions as to what may be the problem? - I'm acting under the impression that the fuse would have blown if there was a problem on the chasis, could it be something else?

[SirPeale]

Get a multimeter, meter the voltage going into the monitor.

When you say fuse, you're referring to the fuse on the chassis, correct?

Since there's an isolation transformer, there may be another fuse in the cabinet.  Check that one as well.

Check the wiring, make sure there are no breaks.

[Terminatedrone]

Yes, the fuse on the chasis I checked (the fuse in the cab is also still good, but if it wasn't, or the wiring wasn't, then the marquee likely wouldn't be turning on).

I'm not really sure on how to use the multimeter. I use it to check continuity, but thats about all. What should I set it to, to measure the voltage going into the monitor? (It's old and I've lost the documentation). Do I plug the monitor in, and try turning it on? It wont make the multimeter explode?

[SirPeale]

Set it to 200V AC voltage.  No, it won't make the multimeter explode.  That's what it's made for.  Meter the voltage at the plug going into the monitor, and yes it needs to be on.

[Ken Layton]

A 5200 series? And a 27 incher? Wells made a 5500 but I'm not familiar with a 5200.

[Terminatedrone]

Ken: I was confused too, I thought it was a 25 inch monitor (especially since it had a 25" bezel, and the game was cropped to fit within it). But when I pulled the bezel off, right away I noticed that it was 27"... a pleasant surprise. So I looked on the chasis, it was a P738-F and the model number was WGM2752-U0GS37F which according to http://www.wellsgardner.com/service/bom_reference.asp is a 27K5201 27" medium resolution monitor (in case anyone was interested, its from a Virtua Fighter cab that has been converted to a Dynamite Cop cab).

Alright, onto the questions:

I don't have access to the monitor today (the arcade is at a friends house, and he's away today). So when I do get to test the voltage to the monitor, what do I check next if the monitor *is* recieving power? What if it's not?

Thanks a lot for all the help guys!

[Terminatedrone]

I was able to test the voltage into the monitor, it gives me 13.3 as a reading.
So it looks like the monitor is getting power, what's next to try?

[SirPeale]

Assuming you live in the US, and assuming you set your meter to AC voltage, you should be getting ~120V.

[Terminatedrone]

Oh yeah?
I had it set on 200VAC touched red to one lead, black to the other, and it read 13.3. At the time I assumed it was giving me amps.

Alright, this is good news though, maybe this means that the problem is the output from the isolation transformer?
Going back to my original post, are there any suggestions on a replacement?

Thanks a lot!