Did you replace the missing wiring for the video connector?
wells 25k7131 chassis help and rehooking to monitor
- Thread starter arcadegarage
- Start date
KevinMullins
Active member
Oh yeah, I forgot he needed to adapt to that 6 pin molex or something first.
(should only be five pins used)
That connector you showed us is coming from the JAMMA harness right?
(should only be five pins used)
That connector you showed us is coming from the JAMMA harness right?
OP
OP
arcadegarage
Active member
vids of the situation
hey fellas, thanks for all the input. looks like im missin the one RGB connector on the right side of the chassis. the old one didnt have this either i dont think.
when i put shardians chassis in, i cut off his 3-prong connector to adapt to my existing 2-prong connector in the cabinet...and got rid of the ground wire (green) in the middle and did nothing with it.
check out these 2 youtube videos i took...this should give a good idea of what the inside of the cabinet looks like (1st vid) and what's happening with the picture itself (2nd vid):
http://www.youtube.com/watch?v=FDitKk_QAw4
http://www.youtube.com/watch?v=sX4Nn58LXX4
thanks again for all your help,
joe
hey fellas, thanks for all the input. looks like im missin the one RGB connector on the right side of the chassis. the old one didnt have this either i dont think.
when i put shardians chassis in, i cut off his 3-prong connector to adapt to my existing 2-prong connector in the cabinet...and got rid of the ground wire (green) in the middle and did nothing with it.
check out these 2 youtube videos i took...this should give a good idea of what the inside of the cabinet looks like (1st vid) and what's happening with the picture itself (2nd vid):
http://www.youtube.com/watch?v=FDitKk_QAw4
http://www.youtube.com/watch?v=sX4Nn58LXX4
thanks again for all your help,
joe
KevinMullins
Active member
Well that explains a lot.... that connector you picked up and showed towards the end of the first video is the "video input" cable that needs connected to the right hand side of the chassis. Without it you will get nothing on screen.
If you can get a good pic of that connector and show us the color coding we may be able to help figure out an adapter or a way for you to connect it.
Some of us can probably think of a few ways to do it, but of course we want to make this easy on ya.
Why they did it that way on yours in the first place.... I dunno.
Typically that end will connect straight to the monitor, obviously yours needs adapted.
If you can get a good pic of that connector and show us the color coding we may be able to help figure out an adapter or a way for you to connect it.
Some of us can probably think of a few ways to do it, but of course we want to make this easy on ya.
Why they did it that way on yours in the first place.... I dunno.
Typically that end will connect straight to the monitor, obviously yours needs adapted.
R3LL1K
Well-known member
Dude, you're just not paying attention. I stated on the first page you needed to connect the video signal wires to your chassis and even posted a link to a picture of how they're supposed to be connected. It was the second sentence in my post, what part of that or the picture did you just not get? So far at least 3 other people have also posted about your signal wires and you chose to ignore every single one of them.
If you hope to take this hobby seriously and actually learn some basics you shouldn't be half assing it. It's already been noted that the 6 plug molex is your video connector, did you think it the video signal would magically travel through the air to the chassis?
Sorry if I'm being harsh but it is what it is. If you're going to ask for help at least do your part and listen to what people are telling you.
EXCERPT FROM POST 8 PAGE 1 OF THREAD.
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mecha
Well-known member
jesus christ. to think threads like these get all the attention, and I ask legitimate questions and my shit always goes ignored until I PM channelmanic or someone. it's staggering.
as R3LL1K says, I hope you're taking this hobby seriously as well, and do a lot of reading of threads on here so that when you're faced with problems, no matter how complicated OR boneheaded they may seem, that you'll know what to do when the time comes.
you're fortunate this was a very simple problem that could do no harm. half-assing anything can either nuke your hardware or could get you hurt.
that is all. good luck sir.
OP
OP
arcadegarage
Active member
connector
hey fellas,
i do apologize if ive had a hard time with this...please keep in mind this thread is now a month old. honestly, i get overwhelmed with monitors and dont understand them. im very willing to learn. in this case, i either overlooked one of your posts or arent reading something right. im still confused how to hook up the video part on the chassis. there was a mention of using butt connectors and such, but keep in mind i dont have a connector that will fit on those pins. is it ok to literally wrap a wire or butt connector around each post? or do i need to buy a new connector?
here are the pics requested of the connector that was lying on the bottom of the cab.
even with the green flashes on the old chassis...do you guys still think the old one is good?
hey fellas,
i do apologize if ive had a hard time with this...please keep in mind this thread is now a month old. honestly, i get overwhelmed with monitors and dont understand them. im very willing to learn. in this case, i either overlooked one of your posts or arent reading something right. im still confused how to hook up the video part on the chassis. there was a mention of using butt connectors and such, but keep in mind i dont have a connector that will fit on those pins. is it ok to literally wrap a wire or butt connector around each post? or do i need to buy a new connector?
here are the pics requested of the connector that was lying on the bottom of the cab.
even with the green flashes on the old chassis...do you guys still think the old one is good?
Attachments
cadillacman
Well-known member
buy this video harness form bob roberts:
Plug that to your monitor. CUt that square connector off your cabinets harness, you wont be using it.
COnnect red to red, green to green, black to black. WHite to white etc..
theres a few oddball colors in your harness and it will have to me a matter of trail and error to figure those out. im assuming that the brown wire of your cab is actually the blue signal so that probhabyl goes to the blue wire of bobs harness.
You may also have to connect the yellow wire of bobs harness to the white wires.. we shall see..
get that harness and lets see what you get, youll have to have this either way..
WIth no input to your monitor yeah it can do all kinds of crazy stuff.. lets get this hooked up and see what you get..
Plug that to your monitor. CUt that square connector off your cabinets harness, you wont be using it.
COnnect red to red, green to green, black to black. WHite to white etc..
theres a few oddball colors in your harness and it will have to me a matter of trail and error to figure those out. im assuming that the brown wire of your cab is actually the blue signal so that probhabyl goes to the blue wire of bobs harness.
You may also have to connect the yellow wire of bobs harness to the white wires.. we shall see..
get that harness and lets see what you get, youll have to have this either way..
WIth no input to your monitor yeah it can do all kinds of crazy stuff.. lets get this hooked up and see what you get..
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R3LL1K
Well-known member
Is your Jamma harness labeled? It would make it a bit easier for you to wire in the new video connector if it is.
shardian
New member
You know, this makes me wonder if your tube matches your chassis. Your original chassis was just sitting in a box, right? I wonder if the person you bought it off pulled a fast one and threw in a random junk chassis.
What monitor uses that input plug? I know a Hantarex Polo uses weird hookups.
What monitor uses that input plug? I know a Hantarex Polo uses weird hookups.
Oryk Zinyo
Well-known member
I have seen more than a couple Midway cabs (Ms Pac and Galaga) that used that plug and had an adaptor from that plug to the standard Molex plug(s)...
R3LL1K
Well-known member
The chassis that came with it is the original chassis. The monitor is a WG 25K7131 shelf mount. You can tell by the 2nd picture in the first post it's a shelf mount and I'm sure OP figured out what the chassis was by the sticker on the frame.
KevinMullins
Active member
Ditto..... Midway was notorious for doing their own thing sometimes...... Including a dedicated NBA JAM.
So a few options,
1. Build the right adapter that is missing.
2. Cut off that connector and add the right monitor connector.
3. Cut off that connector and splice in a new pre-made harness section with the right connector.
4. Replace that entire harness section going into the JAMMA edge connector.
Attachments
OP
OP
arcadegarage
Active member
Bobs harbess
Well I'm thinking the easiest option is to buy bobs harness and reconnect some wires. Yes, that chassis was sitting on a box when I got it. This is also a tnmt cab I believe that was painted black and a NBA jam cpo was added. Looks like next week I can order bobs harness and try to make this happen.
Also wondering if both chassissss work now...
Well I'm thinking the easiest option is to buy bobs harness and reconnect some wires. Yes, that chassis was sitting on a box when I got it. This is also a tnmt cab I believe that was painted black and a NBA jam cpo was added. Looks like next week I can order bobs harness and try to make this happen.
Also wondering if both chassissss work now...
R3LL1K
Well-known member
If the original chassis was blowing fuses then that one definitely doesn't work. You'd have to test the HOT and VR to see if they're good and if th flyback is bad then the chassis will only be good for parts.
OP
OP
arcadegarage
Active member
youre gonna laugh...
alright, so since i didnt have the connector and got impatient...i really rigged this up by literally wrapping the wires around the posts and soldering to the chassis. have a look at the pic. i wanted to see if it would work...it didn't. i hooked everything up to the diagram...i believe. the black wire isnt hooked up to anything...should it be?
alright, so since i didnt have the connector and got impatient...i really rigged this up by literally wrapping the wires around the posts and soldering to the chassis. have a look at the pic. i wanted to see if it would work...it didn't. i hooked everything up to the diagram...i believe. the black wire isnt hooked up to anything...should it be?
Attachments
cadillacman
Well-known member
HACK!!! LOL hey man ive done the same krap back in the day lol.. patiente is a virtue i aint got!!
try removing th bare ground wire and putting black where that one was.. could also try black and bare ground togther...
Do you get anything at all? anything different? try turning up the coarse brightess on the flyback too...
try removing th bare ground wire and putting black where that one was.. could also try black and bare ground togther...
Do you get anything at all? anything different? try turning up the coarse brightess on the flyback too...
OP
OP
arcadegarage
Active member
hack
alright ill try fooling around with the bare and black wires...nothing has changed on the monitor whatsoever...ill try the flyback too.
since this wells chassis probably wasnt for this tube, does that matter? or can you pretty much hook up any chassis to any monitor as long as it's for the right size monitor (19" or 25")?
alright ill try fooling around with the bare and black wires...nothing has changed on the monitor whatsoever...ill try the flyback too.
since this wells chassis probably wasnt for this tube, does that matter? or can you pretty much hook up any chassis to any monitor as long as it's for the right size monitor (19" or 25")?
OP
OP
arcadegarage
Active member
no change
tried playing with the flyback knobs...nothing. tried at least touching the black wires with a few different posts on the chassis...nothing. ive pretty much tried everything here and hooked up everyting according to the diagrams i believe...
i know we all get to this point, but im totally frustrated with this monitor setup that ive had for two months and cant get working. is there anyone else that can help out here?
thanks as always,
joe
tried playing with the flyback knobs...nothing. tried at least touching the black wires with a few different posts on the chassis...nothing. ive pretty much tried everything here and hooked up everyting according to the diagrams i believe...
i know we all get to this point, but im totally frustrated with this monitor setup that ive had for two months and cant get working. is there anyone else that can help out here?
thanks as always,
joe
KevinMullins
Active member
Looking at the frame and mounting setup, I would say that it was originally a K7000 monitor.
To answer your question, it DOES matter what chassis goes to what tube, but only because the YOKE has to match the chassis. The tube itself is not an issue, it's the yoke that has to be the correct one for a specific chassis.
"Nothing" doesn't tell us much. What exactly is nothing?
No power, no image, no high voltage static, no heater glow in the neck of the tube, all of the above?
Was the new chassis you got a "working" chassis?
