Marquee Transformer

timbre

n00b
Joined
Oct 6, 2005
Posts
3
I am new to the NEO*GEO world and am having problems finding resources.

I have a 4 slot NEO with the flat cell lights. Every time I turn on the game with them connected it starts screaming at me. I am thinking that this is a transformer problem but I don't know.

Where can I get a new transformer or a whole control board for the cab?

thanks
timbre
 

chris1

POCKETBIKE NUT,
Joined
Oct 18, 2002
Posts
10,830
Most likely You don't need a new MV-ELA LCD Circuit Board ..You need the bulbs/MV-ELC LCD Panel.

MV-ELDsm.jpg

MV-ELA LCD Circuit Board


Do any of them light up?MV-ELC LCD Panels..If even one bulb is out it'll scream like that.
MV-ELC1-2aSm.jpg

Electroluminescent / Indiglo Replacements
http://www.neo-geo.com/forums/showthread.php?t=99020


http://www.hardmvs.com/html/marquee.htm

...........................Read This thread..
Sound Problems
Nima
IMO the problem this member is currently having..is like yours.
http://www.neo-geo.com/forums/showthread.php?t=130888
 
Last edited:

timbre

n00b
Joined
Oct 6, 2005
Posts
3
I know at least two of the lights work. I forgot to look at the rest since they are under a portion of the marque that is not visible. (I have a four slot cab with a two slot marque at the moment.

I'll pull it off and run the diags to see if they all light.

If not can I remove the ones that are not working and just leave the working units for now until I get time and money to replace them all?

thanks
timbre
 

UncaJJ

Mega Shock!!
Joined
Jul 15, 2005
Posts
100
Dang! Not Timbre!! Who the heck told you about this place??? Oh yeah... I think it was me... ;) :loco:
 

chris1

POCKETBIKE NUT,
Joined
Oct 18, 2002
Posts
10,830
timbre said:
I know at least two of the lights work. I forgot to look at the rest since they are under a portion of the marque that is not visible. (I have a four slot cab with a two slot marque at the moment.

I'll pull it off and run the diags to see if they all light.

If not can I remove the ones that are not working and just leave the working units for now until I get time and money to replace them all?

thanks
timbre



Hmmm....I never did it myself but I think you can..You can just clip/cut separate one of the two wires on the bulb the connects to the green panel PCB(as in the pick below) and leave the bulbs in place.
Just make sure nothing touches metal as it will fry something...and do this with the cab off as grounding something out may also fry something...Plus the shock from touching the two bulb wires connections hurts. :loco: :(

I'm not sure if the Driver-MV-ELA LCD Circuit Board itself will make noise ..if the bulbs are unplugged-cut......(I still need a verification on how this all works)

..........................................................

For Instance.
When I got my Big Red 4 slot two bulbs were out and I use to hear the high pitched noise coming from near the speakers..After finding out what it was(here) I disconnected the wire from the driver-MV-ELA LCD Circuit Board to the bulbs/MV-ELC LCD Panels and it stopped.
After that I bought up as many sets of used bulbs/MV-ELC LCD Panels I could find(Ebay)...eventually I found one set that had all 4 bulbs working just one needed the bulb connection to be soldered(got lucky) and I have a full working set in my Big Red...&.I sold a few other sets after that....Making full sets by transplanting and removing working and non working bulbs onto the green pcb panels.
I'm left with a lot of empty bulb green panels and a lot of dead bulbs...(I don't have any more good bulbs and I can't get them)
The bulbs are not fixable...besides maybe finding a broken spot on them that's a 99-1 chance that's not going to happen...

Then when I got my Two Slot cab both bulbs were blown(2 slot light panel) and I used to hear an even louder high pitched noise.
I disconnected the wire from the driver-MV-ELA LCD Circuit Board to the disconnected and it stopped/as I thought.....but then I later in time heard something again coming from the speaker area so I disconnected the wire from the driver-MV-ELA LCD Circuit Board to the 2 slot motherboard itself..it stopped then..
So even though the bulbs are disconnected the noise may still appear..I'm not sure on this but please note that just incase you still hear it...(I still need a verification on how this all works)

Later:
I replaced one bulb in the two slot,plugged everything back in and still had high pitchy noise when the game was set on the dead bulb.
Then I found another bulb and put it in and have two working bulbs in that cab with no noise.

This took a long time to do all this($$$ :envy: ) and then(during) the replacements came out.. :)
The next thing I'm going to do is put a set of 4 bulbs/MV-ELC LCD Panels in my Candy cab(eventually)......but I will buy the replacement bulbs instead of trying to find four original bulbs...(much,much easier)

................................................................................................................................

If you decide to replace the bulbs/MV-ELC LCD Panels change all of them as the replacements will be brighter then the old..

Also the old-original working bulbs....../MV-ELC LCD Panels......... can be resold...

................................................................................................................................

.........Old MV-ELC LCD Panels/back side of bulb.
ELD.jpg
 

gemen

Super Spy Agent
Joined
Feb 24, 2002
Posts
600
Sorry for jumping on this thread, can someone tell me how much voltage goes to MV-ELA board? Is it 5V, 12V, or 110V? Two power wires(black and red) are cut off from the harness, which connects to the 4-slots mother board. I tried 5V, but it didn't work.

Thanks alot for the help.
 
S

supervito

Guest
hey everyone this is my first post on this forum and i have been looking around for some info on the marquee problem. my EL's are semi shot (the are very dim). even when i disconnected the PCB board from the MV-ELA is still screams like crazy. i think i observed a blown CAP on it and im going to try and replace it. i need a voltage diagram to know what voltage i should be replacing it with. and i was reading the post about the replacement EL bulbs and it doesnt sound like the guy is in circulation anymore. i would like to know where i can find replacement EL cells.

thank you

vito
 

chris1

POCKETBIKE NUT,
Joined
Oct 18, 2002
Posts
10,830
hey everyone this is my first post on this forum and i have been looking around for some info on the marquee problem. my EL's are semi shot (the are very dim). even when i disconnected the PCB board from the MV-ELA is still screams like crazy. i think i observed a blown CAP on it and im going to try and replace it. i need a voltage diagram to know what voltage i should be replacing it with. and i was reading the post about the replacement EL bulbs and it doesnt sound like the guy is in circulation anymore. i would like to know where i can find replacement EL cells.

thank you

vito



You have to disconnect the MV-ELA LCD Circuit Board from the Motherboard to get it to stop screaming..

The replacement EL Cell seller has recently came back around and is still taking orders..
Check out this thread.
http://www.neo-geo.com/forums/showthread.php?t=198187



http://www.hardmvs.com/html/marquee.htm
 

Dion

Known Scammer, NeoGeoFreak Co-Founder
Joined
Aug 24, 2000
Posts
2,070
Yeah. And my tutorial makes it pretty easy to do also if I do say so myself. Lol.
 
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