Help with Monitor Discoloration

[Peale]

I'd forgotten you have a K7000. I had to go back and check out your album.

You can see a picture of the yoke connector in this picture:



It's pretty much in the middle. It's right in back of the flyback area. It's a pain to put back into place. If you've had the chassis out, it's really easy to think you've put the yoke back when you've just put the connector between one of the big caps back there and the heat sink.

[SegaAges]

Arcade Antics: Oh yeah. I assure you, all the help you guys are giving me is just amazing and I can't even begin to express how fortunate and thankful I am for you guys helping me.

I ordered my cap kit last week, and was just seeing if there was anything else I could check while I was waiting for the cap kit.

I can check to yoke and that stuff, and then once my cap kit arrives, I will work on that.

Actually on that picture that Peale shows, you can see the capacitor that I was talking about. If you look at it, it is clearly bursted open and leaking onto the board.

[Arcade Antics]

I ordered my cap kit last week, and was just seeing if there was anything else I could check while I was waiting for the cap kit.

I can check to yoke and that stuff, and then once my cap kit arrives, I will work on that.

Actually on that picture that Peale shows, you can see the capacitor that I was talking about. If you look at it, it is clearly bursted open and leaking onto the board.

You'll have to pull the chassis to do the cap kit, so no reason to check the yoke connection until you've put it back together after installing the new caps.

[SegaAges]

You'll have to pull the chassis to do the cap kit, so no reason to check the yoke connection until you've put it back together after installing the new caps.

Do I have to pull the entire chassis out, or can this be done by just pulling the monitor board and neck board?

I ask because the chassis is glued into the cab, and it will be a serious pain to take the entire thing out.

[TheDomesticInstitution]

Do I have to pull the entire chassis out, or can this be done by just pulling the monitor board and neck board?

I ask because the chassis is glued into the cab, and it will be a serious pain to take the entire thing out.

When I do a cap kit, I pull the monitor PCB and the neck board. People often refer to these 2 boards as the chassis.

[SegaAges]

Ah, I understand now. Sorry, I am still learning. He said chassis and I was under the impression that I would pull the entire monitor out. That would suck for me pretty bad since the monitor is glued in.

[SegaAges]

Here are the pictures of the wire that I was telling you guys about. It goes from somewhere on the board to the front of the monitor. What is this wire used for?



Here I put an arrow pointing to it

[SegaAges]

Yeah, I am guessing that wire is a ground. I am just unsure it is it required since I have not seen it in other pictures of monitors

[vandy160890]

I would like to ask you that how much old is your monitor?
The discoloration may be because of the old worn out parts & you probably need to buy a new one. You can surely get it checked from the expert.

[Peale]

I would like to ask you that how much old is your monitor?
The discoloration may be because of the old worn out parts & you probably need to buy a new one. You can surely get it checked from the expert.

He's got a K7000 which is well documented, and a generally easy monitor to repair. He doesn't need to get a new one, he just needs to fix the one he has.

SegaAges, the wire you're talking about, if I'm looking at the right one, goes to the neck board. It may have been clipped (and you can splice the ends back together with a wire nut or something) or it may have been unsoldered from the neck board. It does need to go back. Though the monitor will work without it, it will build up a charge that will periodically SNAP when it reaches a certain potential. Eventually it may cause damage.

[Peale]

Actually on that picture that Peale shows, you can see the capacitor that I was talking about. If you look at it, it is clearly bursted open and leaking onto the board.

If it's brown stuff around the bottom, it's actually probably glue. Either way, you'll be replacing it.

[SegaAges]

Right now I have some of those things I used for my speakers where you put the wire in there and then twist the 2 sides of the wire in there.

Would it be bad to use that?

[Peale]

You mean a wire nut? That'll work fine.

[SegaAges]

Sorry dude, I am horrible with the names of stuff.

I am going to, hopefully, start working on the cap kit sometime this weekend.

Once I get it done, I am going to post and say how it went.

[SegaAges]

Just an update, I finally got the cap kit installed. I am going to piece everything back together tomorrow sometime and see what happens.

EDIT: video board is in, but now no power. I am going to double check to see if something I plugged in is flipped.

EDIT2: I checked and everything is plugged in. I even triple checked the issue I ran into before with this not getting power.

I will be honest, I am at a total loss as to what is happening. It is like everytime I touch it, it gets worse. I know there is a way to fix this, but I have no clue what I should be checking next.

[TheDomesticInstitution]

Check for blown fuses on the circuit board. Sometimes they are inadvertently blown during a repair. Also check for blown fuses on the monitor power supply.

[Arcade Antics]

EDIT: video board is in, but now no power. I am going to double check to see if something I plugged in is flipped.

EDIT2: I checked and everything is plugged in. I even triple checked the issue I ran into before with this not getting power.

What reading are you getting at the power supply?

[SegaAges]

When I read at the power supply, where should I be measuring it at?

A wire that comes out?

I can check that tonight after work (my job unblocked dp forums, so I can finally use it at work, lol)

[SegaAges]

I have been dealing with some health problems, and am now out of the hospital, so I should be able to get to check the voltage from the power source either today or tomorrow and I will post up here the results.

[SegaAges]

Ok, I am going to be checking the voltage from the power supply to the video board today. That should take all of about 1 minute.

Besides that, what else can I check for?

I just want to have a good basis for the stuff I am looking for.