Author Topic: how to ... REMOVE A NECKBOARD???  (Read 35226 times)

italiandoh

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Re: how to ... REMOVE A NECKBOARD???
« Reply #30 on: January 04, 2011, 06:48:18 PM »
Etienne is right: The big blue is filtering the power that runs to the game PCB's. The width of the monitor has little to do with that. The monitor is supplied with 110V.

110 V ? Please double check this. Intervideo monitors are usually supplied with 220/240 V AC unless Ully's got a special model manufactured for USA market.

Matteo

Etienne MacGyver

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Re: how to ... REMOVE A NECKBOARD???
« Reply #31 on: January 04, 2011, 07:20:19 PM »
now all i need to know is what they are called ...


TV Alignment Tool Kit :


At RS online a big set :


Click the pic  ;)
« Last Edit: January 04, 2011, 07:30:28 PM by Etienne »

Superully

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Re: how to ... REMOVE A NECKBOARD???
« Reply #32 on: January 04, 2011, 07:20:47 PM »
Vertical size ? To me it looks like a horizontal size problem. If turning the H size pot has no or little effect it may also be that they mounted this monitor board on a incompatible yoke. You should check what kind of yoke you have in there. It is usually written on a label on the yoke itself. Or at least measure the yoke resistance with a meter.

when i first reinstalled the monitor, the picture was upside down. with the help of some guys on klov, i fixed the problem by moving the yoke wire to the "reverse yoke" connector - see [url?http://forums.arcade-museum.com/showthread.php?t=120207&highlight=paperboy]here[/url]!

then the graphic issues started. at first the colors were correct, but when i tried another board and exchanged some roms like suggested, i suddenly had most of the screen red and some graphic elements missing. i also have a thread about this on klov - see here!

if you need any more pictures (color bars etc.), please let me know. what would be the first thing to check now? because i've swapped boards / roms around, i'm pretty sure the graphics issue is to be found on the board, regarding the horizontal problem i don't know! what matteo says makes sense: why mess with the vertical coil when it looks like a horizontal problem?
all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

level42

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Re: how to ... REMOVE A NECKBOARD???
« Reply #33 on: January 04, 2011, 07:33:43 PM »


Looks like you can simply (carefully) turn the top (knob, the part that is running JUST under the brown wire on your pic)....BUT I"M NOT REALLY SURE..... carefully give it a try, see if you can turn it at all and see if it has any effect on the screen.

This size is usually adjusted with a WIDTH coil...thus it influences horizontal deflection... (width is used because they go out from the "normal" horizontal position of a monitor).

From Ully's screen picture you can clearly see that the picture is "overlapping" on both left and right sides. And he mentioned he can't get it to fit, so thus I thought he's have to search (and adjust for the width coil.....)

Vertical size ("height") is usually adjusted with a pot.
« Last Edit: January 04, 2011, 07:38:18 PM by Level42 »

level42

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Re: how to ... REMOVE A NECKBOARD???
« Reply #34 on: January 04, 2011, 07:40:35 PM »
And you should surf more Ully:

http://arcadecontrols.com/BBBB/wc.html

Superully

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Re: how to ... REMOVE A NECKBOARD???
« Reply #35 on: January 04, 2011, 07:41:45 PM »
And you should surf more Ully

don't force me to :D

btw, i've just gone through the test screen where blank screens in the colors red, green, blue, white and grey are shown. result: all of those screen are GREEN!!! :o (just the writing underneath is red).

perhaps i should film a short video!!!
all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

Superully

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Re: how to ... REMOVE A NECKBOARD???
« Reply #36 on: January 04, 2011, 07:45:24 PM »
Looks like you can simply (carefully) turn the top (knob, the part that is running JUST under the brown wire on your pic)....BUT I"M NOT REALLY SURE..... carefully give it a try, see if you can turn it at all and see if it has any effect on the screen.

i've gently tried to turn the knob - no movement in any direction. i don't even know if that is a knob at all. the width coil itself is a little bit wobbly, i don't know whether applying too much pressure is the way to go. am i supposed to put something into that "deep pit" in front of it? :twisted:
all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

Etienne MacGyver

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Re: how to ... REMOVE A NECKBOARD???
« Reply #37 on: January 04, 2011, 07:59:36 PM »
am i supposed to put something into that "deep pit" in front of it? :twisted:

NO.

that looks to me that that  is just a piece of ferrite, there is no ajustment there.....   i think ???

ferrite is very brittle..., if you stick a screwdriver in there....
isnt the "knob" just a cover that protects the (ajustment) coil ?
« Last Edit: January 04, 2011, 08:03:12 PM by Etienne »

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Re: how to ... REMOVE A NECKBOARD???
« Reply #38 on: January 04, 2011, 08:24:22 PM »
And you should surf more Ully

don't force me to :D

btw, i've just gone through the test screen where blank screens in the colors red, green, blue, white and grey are shown. result: all of those screen are GREEN!!! :o (just the writing underneath is red).

perhaps i should film a short video!!!
Perhaps we should tackle one problem at a time...

IIRC you don't have a manual because this is a pretty rare mid-res Hantarex/Intervideo ?
Are you sure our friend Andreas doesn't have the manual somewhere here ?
http://andysarcade.de/gen_unicab.html

level42

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Re: how to ... REMOVE A NECKBOARD???
« Reply #39 on: January 04, 2011, 08:34:15 PM »
Can you make a better pic with the yellow and green and black wires out of the way ?

I fact, if it's ferrite it could well be what needs to be adjusted, but normally the adjustable ferrite is inside that tall thing with the wires around...

However I do seem to read the letters ADJ (adjust) right there ?

Etienne MacGyver

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Re: how to ... REMOVE A NECKBOARD???
« Reply #40 on: January 04, 2011, 08:44:56 PM »
I just went through my manual of a MTC900, and i need to say that i doubt now what i sayd before...

the arrow at "24" points to that spot...

dont know if its the same that your monitor uses, but mine also has"a "cap" ..



a straight shot like andre suggested would be nice ...  ;)

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Re: how to ... REMOVE A NECKBOARD???
« Reply #41 on: January 04, 2011, 08:46:52 PM »
Yeah, seeing the square "hole" size it's very likely that it should be adjusted there. Maybe you have something plastic that will fit in there Ully ?....(that sounded weird).....again, be gentle.....(even weirder)....


What does 24 say in the manual Etienne ?
« Last Edit: January 04, 2011, 08:50:59 PM by Level42 »

Etienne MacGyver

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Re: how to ... REMOVE A NECKBOARD???
« Reply #42 on: January 04, 2011, 08:48:15 PM »
Yeah, seeing the square "hole" size it's very likely that it should be adjusted there. Maybe you have something plastic that will fit in there Ully ?....(that sounded weird).....again, be gentle.....(even weirder)....
LOL  :lol:

take a piece of plastic or circuit board and "file" it to the correct size, thats what i used to do with trimmers in my FM transmitter..

(ofcourse file away all the cupper in case of a piece of old circuit board... ;))

What does 24 say in the manual Etienne ?



sounds to me the ajustment we are looking for  ;)
« Last Edit: January 04, 2011, 08:59:44 PM by Etienne »

Superully

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Re: how to ... REMOVE A NECKBOARD???
« Reply #43 on: January 05, 2011, 12:47:29 AM »
take a piece of plastic or circuit board and "file" it to the correct size, thats what i used to do with trimmers in my FM transmitter..

thx a lot for your help, guys! just got home (was out tonight) and right now i'm too tired to try this, but i'll find something to stick in :P tomorrow morning - then i'll report back with results.

like andré said: one thing after the other. first the width issue, then the color / graphics stuff! thx again :spaceace:
all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

Superully

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Re: how to ... REMOVE A NECKBOARD???
« Reply #44 on: January 05, 2011, 09:12:58 AM »
ok, after a lot of trying / filing / fitting i finally found a strongenough piece of plastic. with it, i am able to turn that pot. here's the however: the width of the screen only changes slightly, sometimes the word PRESS at the left side of the screen reads just SS, sometimes it's al least half an R and ESS - but not more. i can turn the pot just by mere fractions but i can also turn it in bigger dimensions - the result stays the same. i can't check perfectly what happens when i turn the knob in varying degrees, because i don't have a large enough transportable mirror here to turn and check at the same time, so it's turning at the back, checking at the front, turning at the back, ... you get the picture.

from what i can tell right now, this isn't working as it is supposed to be :'(. is it possible that the width coil is damaged (as i've stated above, it's wobbly)?

btw, the color problem might indeed just be a matter of color correction on the monitor's neckboard, at least that would be an easy fix!

suggestions?
all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!