100vac Kortek chassis?

modessitt

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I'm not aware of the difference in Kortek versions, but are there any 100vac Kortek chassis out there? I have one that looks like a KTM-F20, although it could be a match for either this or this on BobRobs page as well.

The monitor was out in the rain about a month ago and any label that might have identified a 100vac preference is gone, as well as a model number. I have a barely legible serial number sticker, and a perfectly legible "isolation transformer required" sticker.

And yet, I seem to recall something about 100vac when I pulled the monitor way back then. It was pulled out of a cockpit G-LOC, and there may have been a sticker there. I know that some Segas had 100vac Nanao's and such in them, and I want to make sure I don't fry this monitor by applying 120 to it. It powered up before, with a scrambled and/or unstable pic.

I guess worst-case I could look up the specs on the VR to see what it's rated for, but figured I'd ask. I'll also check the G-LOC manual (assuming there is a cockpit version online) to see if it has any info pertaining to this...
 
Kortek xx14 series are universal, they'll run on anywhere from 97VAC up to 264VAC without modification, but they don't need isolation, so hmm.

A Kortek monitor in a Japanese cabinet seems really odd to me. Japanese and Koreans don't much care for each other.
 
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I'm pretty damn sure this is the monitor that i took out of the game, but I'll look around to see if I have another in a similar frame.

And it wouldn't surprise me if this wasn't original. When I picked this big phucker up, it was already if pieces with a monitor installed, but it could have been put in by whomever. Glad to know this one will run on the various voltages, but are you sure you only mean the NEWER Kortek's run on that voltage and don't need iso's, and not the OLDER Kortek's, which might be voltage specific and need iso's?
 
The three pictures that were linked in the first post......all need an isolation transformer. My experience (for what that's worth), a 100 volt monitor will have a filter cap rated at 160 volts. A 120 volt monitor's filter cap is usually rated at 200-250 volts. Modern monitors with SMPS (no isolation transformer required) will be higher, usually 350 volts.


Edward
 
Glad to know this one will run on the various voltages, but are you sure you only mean the NEWER Kortek's run on that voltage and don't need iso's, and not the OLDER Kortek's, which might be voltage specific and need iso's?

I'm pretty sure it's only the newer ones (i.e. Series 14) that are universal, yeah. On the other hand, that's all I've ever seen in person, 3314s and 2914s. I don't know older chassis all that well.

Given the history between Korea and Japan, I can virtually guarantee that chassis was added after the fact. To that end, it's very likely to be made for 120V and only tolerated the 100V.

Here's my attitude: 60Hz is 60Hz, and the monitor should be running on regulated DC voltages anyway. Worst case scenario, you blow a cap, or something in the power supply section overheats. Not too hard to figure out.
 
Turns out the monitor I was talking about isn't the monitor I pulled out of the G-LOC. I found the proper one, a Sanwa PM1723C, otherwise known as a Sega Model 20V21S, Definitely labeled as AC100V. I'll be messing with it tonight (recap, etc) then looking into finding 100vac to power it up...
 
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