Is this monitor fixable?

SuperFili

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I picked up a Kortek KT-2914F monitor along with a Neo Geo 2-slot cabinet for $130. This monitor did not go with the Neo Geo (it's too big, 27" I believe), and the guy said it was not working. I wanna take a stab at repairing a monitor with a cap kit, but this one looks to be in rough shape.

I see what looks like caulk in different areas, a ton of convergence strips around the yoke, and the yoke has what looks like broken pieces of hard clay around it. I also noticed that one of the pins where the power connects was broken off inside the molex connector. Speaking of power, it looks like it's a newer monitor with an isolation transformer. So can I just connect straight from the power molex into the wall? And should I even try? I want to see in what working condition it's in, but I don't want to mess it up more than it may be.

Any advice would be appreciated :)

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That white glue is to hold things so they don't move/vibrate but yeah those monitors are not the worst to repair its doable. It's hard to say we don't really know whats going on.
 
a good cleaning and a cap kit is where is would start but without knowing more details of the current state it may require alot more work.
 
Do NOT touch anything on or taped to the tube. All those convergence strips were put in place to align the color guns. Moving them can and will be a Pain to put back. The Caulk is to keep the Yoke from moving, again Convergence.
Do not power that chassis without first fixing the broken Yoke Connector. That is a must.
Basic tests are needed to try and figure out what is the issue. Fix that connector, Check the HOT look underneath for cold Solder joints, blow it off (The CHASSIS) with Air, if you feel the need wash the chassis but if air gets most of it I would leave it until it actually works.
Check the Flyback for Cracks or burnt spots.Once all that is done, then make sure you have all the grounds ect connected and then power it up and see what it does.
 
Is that the AC input connector or the degaussing coil connector?
Best case - find similar pin from a junk board and replace.
 
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It's the AC input connection. So would trying to solder it back together be a big no no?

Apologies for the noob questions :)
 
It's the AC input connection. So would trying to solder it back together be a big no no?

Apologies for the noob questions :)

best thing is to replace the pin and if you measure the diameter its probably close to the pins used on alot of deguassing and yoke connectors so if you have a parts chassis you can rob them off that or buy a junk chassis. arcadeboneyard usually has some pretty cheap if you need.
 
Yes, it looks to me like the pin is still in the connector... you could always just solder the wires directly to the chassis points too, or put a different disconnect on if you really want to. You do NOT want to plug it in to the wall outlet, you MUST use the isolation transformer. Like I said either pry the pin out and solder it on, or cut an old disconnect pair (male and female with leads) and patch that in...
 
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Yes, it looks to me like the pin is still in the connector... you could always just solder the wires directly to the chassis points too, or put a different disconnect on if you really want to. You do NOT want to plug it in to the wall outlet, you MUST use the isolation transformer. Like I said either pry the pin out and solder it on, or cut an old disconnect pair (male and female with leads) and patch that in...


You do NOT want to plug it in to the wall outlet, you MUST use the isolation transformer.

this chassis uses a switch mode power supply.

Any chassis that has a smps does not use a isolation transformer.

look at the chassis you will see a yellow transformer and you will see

no connection between the hot side of chassis and cold side which is chassis ground.

also see schematic for the details as well.
 
This is what was happening last night when I plugged it in with the isolation transformer. Lots of clicking, no neck glow, and occasionally what sounds like static "snaps". I'll try again tonight without the transformer as was suggested.

https://youtu.be/E9ajYffPhEg
 
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