Monitor BROKEN!?!?

Hello everyone! I've been coming here for quite a while... but now I'm the proud owner of this Baby:



She's a beauty, but needs some love to be in TIP top shape.

Well, i forgot to get a picture of the Crosshatch... but the monitor is too Tall and a little off center... But I have no idea how to fix it, this is where you guys come in.

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060868.jpg - Whole Cabinet insides.


http://img.photobucket.com/albums/v402/zeroskaterkd/P1060881.jpg - What I'm guessing is Monitor Controls.

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060882.jpg - Close up of the Black box

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060884.jpg - Closeup of the other box.

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060888.jpg - The board.

Any help at all would be GREATLY appreciated... I can't see credits... or like.. Lives... Its not toooo Bad, but I'd like to have it fixed.

Secondly... My machine is a 2 Slot Board Without a "Select Game" button... How would I go about wiring that?

Thank you guys so much.

Mulletron.

Mulletron said:

Hello everyone! I've been coming here for quite a while... but now I'm the proud owner of this Baby:.

Click to expand...

She's a beauty, but needs some love to be in TIP top shape.

Well, i forgot to get a picture of the Crosshatch... but the monitor is too Tall and a little off center... But I have no idea how to fix it, this is where you guys come in.

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060868.jpg - Whole Cabinet insides.

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060881.jpg - What I'm guessing is Monitor Controls.

Click to expand...

No..that's the Power Supply,don't mess with that..

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060882.jpg - Close up of the Black box

Click to expand...

Power Supply

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060884.jpg - Closeup of the other box.

Click to expand...

Isolation Transformer don't mess with that

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060888.jpg - The board.

Click to expand...

Where's the cover.that's on it in the other pic..?

Any help at all would be GREATLY appreciated... I can't see credits... or like.. Lives... Its not toooo Bad, but I'd like to have it fixed.

Click to expand...

You may need to buy some credit displays and install them..If you actually have a spot to put them,like in the control panel..

Secondly... My machine is a 2 Slot Board Without a "Select Game" button... How would I go about wiring that?

Click to expand...

There are a few topics on that..I'll see if I can link you to one..

Thank you guys so much.

Mulletron





Congratulations..

Well,let me give you warning to be very careful around the back of the monitor,it can kill you..Don't touch anything back there without asking here first..

What you need to look for first is small pcb board that has several wires going to it ..the wires will be coming from the back of the monitor..
It has small adjustment knobs pots that'll may adjust the monitor size..
It should be mounted inthe cab somewhere..
Otherwise post some close up picks of those knobs on the back of the monitor..

Secondly... My machine is a 2 Slot Board Without a "Select Game" button... How would I go about wiring that?

Click to expand...

Try looking in some of the topics listed in a.... Select Button ..search..the Search engine just gets me to aggravated it SUCKS so bad..
http://www.neo-geo.com/forums/search.php?searchid=309195

I even typed in Adding a Game Select Button looking in Tech.. a current topic that is listed and I get :
Fatal error: Allowed memory size of 16777216 bytes exhausted at (null):0 (tried to allocate 129 bytes) in /home/www/neo-geo/forums/search.php on line 815

http://www.neo-geo.com/forums/showthread.php?t=115718

Info
http://www.hardmvs.com/html/MV-2F.htm

2 Slot Manual..
http://www.hardmvs.com/manuals/MV-2FserviceManual.pdf

http://www.hardmvs.com/manuals/Jamma2NeoGeo4SlotPinout.pdf

Mulletron said:

Secondly... My machine is a 2 Slot Board Without a "Select Game" button... How would I go about wiring that?

Thank you guys so much.

Mulletron.

Click to expand...

http://img.photobucket.com/albums/v176/ttooddddyy/mvssound.bmp

chris1 said:

Congratulations..

Well,let me give you warning to be very careful around the back of the monitor,it can kill you..Don't touch anything back there without asking here first..

What you need to look for first is small pcb board that has several wires going to it ..the wires will be coming from the back of the monitor..
It has small adjustment knobs pots that'll may adjust the monitor size..
It should be mounted inthe cab somewhere..
Otherwise post some close up picks of those knobs on the back of the monitor..

Click to expand...

Is that this right here?
http://img.photobucket.com/albums/v402/zeroskaterkd/P1060869.jpg

(I just realized thats a bit close and understand what you guys are talking about, I think.. If not, expect more pictures for guidance.)

Also... When I do the sound test, (I only have one speaker), but I can only hear Left, Right, and VERY VERY faint center... so on most games, I get all BG music and no Sound effects. Any ideas there either?

Thanks guys,

Mulletron.

Mulletron said:

Is that this right here?
http://img.photobucket.com/albums/v402/zeroskaterkd/P1060869.jpg

(I just realized thats a bit close and understand what you guys are talking about, I think.. If not, expect more pictures for guidance.)

Also... When I do the sound test, (I only have one speaker), but I can only hear Left, Right, and VERY VERY faint center... so on most games, I get all BG music and no Sound effects. Any ideas there either?

Thanks guys,

Mulletron.

Click to expand...

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060869.jpg

No..
.............................................................
Depending on the Monitor Type you may "not" have one of these Monitor Adjustment boards..

Look for something located in the cab,on it's inner sides,under the control panel....not on the Monitor Chassis itself....
Something looking like the pcb with wires and knobs-pots in my pic below..(thing to the lower left)




Otherwise..Take a pic of the knobs below what you have in the link above..
And if you can..any writing on the monitor...(again,don't touch anything)




With the Sound..You have to check your wiring..See what pins in the harness are running to the speaker.
Honestly,I'm not sure how to hook up a 2 Slot Stereo Board to a Mono set-up..As it seems it's hooked up now.(I never did it)

As I'm figuring your harness us wired up sowehow like the below in link Jamma set-up..or maybe the MVS.
http://www.hardmvs.com/manuals/Jamma2NeoGeo4SlotPinout.pdf


It's hard to explain this stuff when it's not seen in person..

Holy crap, I think I just messed up my whole monitor, I was adjusting the knobs, it was perfect.. then *SPAAARK!* .... No picture anymore....

Please tell me that I can fix this somehow.

Mulletron.

Wow, that's not good. Can you post pics of what you adjusted?

There were MANY adjustments on my arcade, I'm picturing the H. Center V. Center, Height, Freq (The important ones on the PCB), the others were located more up top. Here is a basic picture....

http://img.photobucket.com/albums/v402/zeroskaterkd/P1060885.jpg

Then, I used Paint to Explain what I adjusted... then... .....

What I did....

http://img.photobucket.com/albums/v402/zeroskaterkd/Stupid.jpg

In case you cant read it.. the red says... "Adjusted these" and the Green says, "Touched these 2 with a screwdriver", but it was labled... And... SPARK! Screen went out. I was not harmed... And I'm hoping it had some surge protector or whatever, because the previous owner told me to look for a switch in the back (That I can't seem to locate).... Am I Screwed and ruined some Capacitor or something? I feel so stupid... what an expensive lesson...

Mulletron.

Did you use a screwdriver without an insulated shaft, with those types of bare pots as seen on older monitors, its so easy to short out against the metal chassis which is grounded.

You have probably shorted the wiper of the +B pot which caused over voltage on the +B resulting in over voltage on the EHT hence the spark. If your lucky you may have taken out a fuse on the monitor.

But im affraid there is probably more to it.

Does with board still power up - do you get intro sound ?

Yeah, I get everything but an image. The monitor still hums like its running (Could be a Hum from something else, but I think its the monitor) I can play the game and insert credits still. And yeah, I used a Screwdriver I made with a Plactic Mold Injector. I feel all mad at myself, but I'm learning, I'm learning. Where would I find this fuse (if it is the case)? I can get it serviced for 60$, but thats 60$ I don't wanna spend.

Thank you guys so much.

Mulletron.

I've just repaired 2 chassis, one had a blown fuse whilst the other had a faulty cap and a blown fuse. Both of these chassis had the metal trim pots like yours. Get in your cabinet with a tourch and have a good look at the chassis board, then if you find any fuses check them with a multimeter, don't go by looks alone.

If there isn't a blown fuse then you might attempt to remove the chassis from the monitor to have a close look at it and try to troubleshoot it by using a multimeter. BUT MAKE SURE THAT YOU KNOW HOW TO REMOVE THE CHASSIS FIRST, VERY DANGEROUS.

If you need help to identify what type of chassis you have, then have a look at this site.

http://www.jomac.net.au/mon.htm

I Suggest DISCHARGING it First...I don't want this guy Killing Himself.

I will warn again...Please don't touch anything back there...A shock from a Monitor can and May KILL You..
Stay away from the Red Wire going to the monitor TUBE and CHASSIS and anything that it goes to..
Don't use any metal tools back there...if you are going to mess around back there use plastic...(before Discharging monitor)
They sell plastic screw drivers to adjust those pots..

PLEASE: if you are going to touch anything back there take several Pictures of what you are going to touch and Post them here First..

You may have got lucky and just popped a Fuse..Getting to that Fuse can Still Shock Kill You..So look with a flashlight for a Fuse on the monitor chassis/Behind those Adjusting Pots you adjusted..
When Messing around back there please unplug that Cab/have it off..though the Monitor still Holds a charge if the cab is off/unplugged and will Shock Kill You...
(this prevents burning something else out/for now.)

If you are going to really Finagle with this Monitor I Suggest DISCHARGING it First...
That I can't explain how to Do... .You really have to be careful doing that..
(Please Note:the Monitor will build that Charge back up again once you turn that cab back on..So Only Work on it after it's DISCHARGED..

Most Likely:
If you did fry this Chassis,you can either get it repaired or have just the chassis Replaced..Using the Existing Tube.

I've read many a FAQ on how to do all of this, and the Anode tube and what not... but I still am a little weary about it, and is all the trouble/expenses worth it? Or Should I take it to a friend of mine for 60$? And Like I said before, I learned my lesson with metal back there... like it says on the left.. Neo-Newbie.... But oh well... I did come out learning on this one. I also heard that you should wait a few days to let the charge die out before messing back there... True? False? Betson requires you leave it off for like 3 days before sending it in. Also, what would this fuse look like? I have a good knowledge of whats going on, but want to make sure before I fiddle more.

Mulletron.

Or Should I take it to a friend of mine for 60$?

Click to expand...

Yes.I would do that..

Your better off,Have them adjust it too..

lol, alright, thanks for all your help, I'll be sure to always come back in the future. and to NOT DICK AROUND WITH THE MONITOR. lol

Thanks again everyone.

Mulletron.

chris1 said:

Yes.I would do that..

Your better off,Have them adjust it too..

Click to expand...

damn if I were in the area would fix it for a cold beer

Wait... so is this a huge rip-off? How much does monitor repair/monitors in general go for? And come on down anytime, we'll hang out.

Mulletron.

Mulletron said:

Wait... so is this a huge rip-off? How much does monitor repair/monitors in general go for? And come on down anytime, we'll hang out.

Mulletron.

Click to expand...

I personally don't know Monitor repair Prices..$60.00 seems a good deal to me..
Well,if you just blew a fuse then it would be a rip off...depending if they told you that or not..
I figure since you have a friend of yours who's going to fix it then he'd not charge you $60.00 if that was just the problem..

If you can get it "fixed" for $60.00 then that IMO is a good deal,because You don't know what's wrong with it..
It could be anything and require soldering parts etc..
Plus your not risking yourself to the danger..or work..

If you are going to remove that monitor Please Discharge it first..Monitors can hold a charge for a very long time..don't go by what Betson's says..
Even a Monitor with a lesser charge will knock a person on his ass..

I have a 13 in Monitor I'd like to have repaired..I'd pay $60.00 in a heatbeat if I could get it done for that price.


....................................................................................
Shoot..I wish ttooddddyy lived around here..I'd be paying him for repairs all the time since he really is a genius at this stuff..

Alright, They're telling me to remove the monitor and just bring that. How should I go about doing this? How do I Discharge this? How should it travel? Should it not touch anything? I know how to remove it, harness wise, but not what I should do.

Thanks for sticking through with all of my questions.

Mulletron.

No problem man..that's what I'm here for...to help..

I basically know how to do it and I've seen it done in front of mem but I want to give you the correct info on this.
So I've been searching the internet and can't come up with exactly what I need..(I may be just tired tonight)
http://arcadecontrols.com/files/Miscellaneous/crtfaq.htm#crtsdc

I need a monitor techy in here..

Check these threads please..
I did a serch here in tech using " Discharge Monitor"..There are several threads that come up ..
http://www.neo-geo.com/forums/showthread.php?t=82294&highlight=Discharging+monitor
http://www.neo-geo.com/forums/showthread.php?t=67536&highlight=Discharging+monitor
Reznor007:
I wouldn't trust the self discharge...

Take a long flat tip screwdriver, wrap the end of some speaker wire around the metal of the screwdriver, then wrap the other end around the metal monitor frame. Once you are sure it is making good contact(as a ground), stick the tip of the screwdriver under the rubber cap and pop it off. It may make a popping noise. Once the cap is off, touch the hole with the screwdriver to make sure there is no charge left.


http://arcadecontrols.com/arcade_monitors.shtml#discharging
http://arcadecontrols.com/files/Miscellaneous/crtfaq.htm#crtcsa
Discharging a monitor
Obviously, if you intend to work with a monitor, the voltage needs to be discharged first, ideally not through your body. This is so potentially dangerous that I removed my first attempt at this page for fear of leading someone into harms way.

Some monitors are self-discharging. I would always assume that the monitor I'm about to work on is notself-discharging. Either that's not the way it was designed, or it's malfunctioning and not discharging itself entirely.

The proper way to discharge a monitor is to consult a TV/monitor technician. They have tools that will do a safe, slow discharge of the monitor. If you're going to do a lot of mucking about with monitors, you probably should find a way to obtain one of these tools.

There is a short-cut method to discharing a monitor. I will not tell you how to do so - I consider it dangerous. There are a couple of other web sites you can goto to read about this method if you choose. I will give you a couple of warnings first:

Precautions
You must must must have everything unplugged before you do this! Wear non-conducting, rubber gloves. Don't stand on raw concrete (water in concrete = good conducter of electricity = bad for you). Do wear rubber soled shoes. Do stand on something dry and non conductive (I stood on a rubber chair first time). Do make sure monitor is securely fastened before mucking with it.

If you attempt the short-cut method, put your left hand in your pocket while you do so. DO IT. This stops you from inadvertantly grabbing something and shocking yourself, or doing something dumb like trying to grab a falling screwdriver. If something does fall, get away as fast as you can until it's stable. Also, if you are shocked, this position theoretically keeps the path of electricity away from circulating in your body to your heart, instead going down your body to ground.

Also - even after discharge, some monitors retain electricity in certain parts of the PCB. Don't assume it's completely safe once you've discharged the monitor, and be careful of all capacitors!
If I haven't scared you away from doing this yet, then here are the links you want to visit:


http://arcadecontrols.com/arcade_monitors.shtml


I just absolutely cannot emphasize this enough.
Monitors are dangerous!

Monitors hold somewhere near 20 thousand to 30 thousand volts! They can still hold thousands of volts even after being unplugged for a length of time. Moving, mounting and most especially discharing a monitor should be done carefully. Not doing so can get you killed. Not only can you shock yourself, you can get nasty collateral damage. The force of the shock could send your arm flying into sharp metal, glass, etc... Someone one posted that after shocking themselves on their monitor the force of the shock flung their arm out so hard their screwdriver imbedded itself into the wall across the room. Also, if you drop the monitor, it will probably implode - read that as a mini-bomb going off with you at ground zero. Glass shards can't be fun. Please be careful - the minute you don't take this seriously, it will get you.

Great, I'll give it a shot tonight, and Post the results.

Mulletron.

Mulletron said:

Great, I'll give it a shot tonight, and Post the results.

Mulletron.

Click to expand...

Please be carefull...Looking forward to seeing the Posted Results..

Perfect, Absolutely perfect, everything went off without a hitch, and the monitor is safely packed to give to my friend. I know not to take this new sense of *I DID IT* with a grain of salt... I know to ALWAYS be careful, and not to be stupid again, thanks guys, I learned a lot.

Mulletron.

PS. Mind taking a look at my Coin Door Topic?