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Author Topic: WG 25K7191 neck board  (Read 3075 times)

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ZORK2

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WG 25K7191 neck board
« on: April 03, 2009, 04:19:18 pm »
I was replacing the monitor and neck board on my WG7191, as I was removing the neck board, the palstic where the part attaches to cracked and broke!  :'( See atached pic
I replaced both boards and hooked everything back up, fired up the machine. The monitor powered up(it did not before becasue of another issue)
The picture now has vertical lines through anything that moves.
So a few questions,
Is the broken neck piece causing those vertical lines to show up? Or is it another issue?
If that is the issue, where can a replacement be found?

qrz

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Re: WG 25K7191 neck board
« Reply #1 on: April 03, 2009, 04:26:57 pm »
that is a guide for mating the crt socket. a replacement can be found on junked crts.
or , pm some info and might be able to send u a replacement.  ;)

as for the "lines", the socket is no longer snug on the tube.  excessive play can result in poor contact
with crt pins .


qrz

ZORK2

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Re: WG 25K7191 neck board
« Reply #2 on: April 03, 2009, 04:37:58 pm »
QRZ,
THANKS! I figured those vertical lines were casued from that part being broken. I should have been more careful when pulling the neck board off. I noticed part of the plastic ring around it was cracked before I even touched it. How do you remove that CRT socket part? I took the ring clamps off and applyed some pressure, not too much as I didn't want to further damage things, it didn't budge.
QRZ, how do you PM? I'm new to this board.....

Kevin Mullins

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Re: WG 25K7191 neck board
« Reply #3 on: April 03, 2009, 04:48:07 pm »
The picture now has vertical lines through anything that moves.

Can you grab a pic of that issue ?

I took the ring clamps off and applyed some pressure, not too much as I didn't want to further damage things, it didn't budge.

LEAVE THOSE ALONE !!

QRZ, how do you PM? I'm new to this board.....

Click on the individuals name and there will be an option towards the bottom of that screen.
Not a technician . . . . just a DIY'er.

ZORK2

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Re: WG 25K7191 neck board
« Reply #4 on: April 03, 2009, 04:59:54 pm »
Ok, I won't touch them.

Here is a pic, it is the vertical lines in Lisa's head, the rest is just pixalation from the camera......

Kevin Mullins

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Re: WG 25K7191 neck board
« Reply #5 on: April 03, 2009, 06:36:02 pm »
That looks more like a game board issue.

Do you have any other JAMMA board to test with?
Not a technician . . . . just a DIY'er.

ZORK2

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Re: WG 25K7191 neck board
« Reply #6 on: April 03, 2009, 07:17:26 pm »
Yeah, I'll put another in it. I doubt that is it though? The game was working fine before the monitor crapped out....
Let me check it...

ZORK2

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Re: WG 25K7191 neck board
« Reply #7 on: April 03, 2009, 07:43:47 pm »
Well I'm not sure what it means but I just put in NBA jam an it tested ok? No lines? What does that mean? Put Simpsons in, the lines were there......

ZORK2

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Re: WG 25K7191 neck board
« Reply #8 on: April 03, 2009, 08:20:25 pm »
Kevin, your comment got me thinking....
I dialed down the voltage on the pot on the power supply, cleared the lines right up! I must have bumped it when I was in there working or something? Anyway thanks for all the input.
I'd still like to get a new as that neck board isn't all that secure anymore. If anyone knows where I can find one please let me know.
PS I started a restoration post for this cab on the restoration forum. It is really coming along! I got all the new side art on today, I'll be posting pics later.....

Kevin Mullins

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Re: WG 25K7191 neck board
« Reply #9 on: April 03, 2009, 09:18:22 pm »
Kevin, your comment got me thinking....
I dialed down the voltage on the pot on the power supply, cleared the lines right up! I must have bumped it when I was in there working or something?

And some game boards are just finicky like that..... I knew it wasn't a monitor issue as soon as I saw the pic.
Glad you got it sorted.  :cheers:

I'd still like to get a new as that neck board isn't all that secure anymore. If anyone knows where I can find one please let me know.

There have been times where I've had one of those plastic guides break off like that and I will ever so slightly tweak the neck pins outward a hair, then the pressure of the neckboard socket going back on keeps tension on the pins. Takes a little wigglin' to get the pins back in the socket correctly.
BUT..... the pins can be easy to break, once that happens you can hang that tube up.
So maybe not the best recommendation for some people.
Not a technician . . . . just a DIY'er.

ZORK2

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Re: WG 25K7191 neck board
« Reply #10 on: April 03, 2009, 11:07:07 pm »
Thanks again Kevin.
Being new to this whole world, it is sometimes difficult and frustrating trying to trouble shoot when you have no CLUE what it is you are looking for or where to begin!! Ah well I enjoy learning new things, so I guess that is the only way you figure things out sometimes....

Kevin Mullins

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Re: WG 25K7191 neck board
« Reply #11 on: April 04, 2009, 12:19:12 am »
Absolutely ......  :cheers:
Not a technician . . . . just a DIY'er.