Another monitor question (Help please??)

[guddler]

[ukvac] Another monitor question (Help please??)
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Hi,

I shall continue trawling through previous posts, by my dialup is about to time out, so please bear with me for asking perhaps prematurely.

I have just put my machine back together after restoration (a Taito SI pt II cocktail), and i am getting nothing from the monitor. The game boards i have tried (Burnin Rubber and Falcons Crazy Kong) SOUND like they are working fine.

From Burnin Rubber i get the following voltages:

R - +2v
G - +2.25v
B - +1.6v
S - +3.2v

From CK:
R & G - +0.06v
B - +0.1v
S - +1v

(all of the CK ones seem a little low, but i remember it being very dark, maybe that's why)

Both have good grounds on the V.Ground line.

I know this is a bit of a sweeping question, but assuming i haven't forgotten to connect something up (which i'll check tommorrow), where should i start to look. All the fuses test out okay, but i can't see any glow from the neck of the tube. I don't remember whether there was before i started or not, but from experience of looking inside TVs (my father is a TV engineer) - there should be a nice orange glow there.

I remember seeing a mention in another post about some kind of monitor FAQ thingie which being new to the list i missed, and my connection is so slooow it's taking a while to find.

Thanks for any pointers in the right direction and sorry for the long post.

Martin.
PS: Anyone out there in the Northampton area??

 

[guddler]

RE: [ukvac] Another monitor question (Help please??)
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Quick update before i trundle off to bed ;o)

Trawled back through the messages to the beginning of May and still can't find this monitor "introduction" as i recall it being called.....

Forgot to mention that this is getting rather desperate - i move house the w/e after next which only gives me this weekend to get the machine back together (preferably working, the fewer times i have to discharge that screen the better in my books - very nerve wracking to a newbie!!)

I could transport the machine in bits, but the chances of the tube being in one piece at the other end would be rather slim methinks.

Finally, from someone who's been to one before, would the "1.8 meet" (who thinks up these names!!) in Honiton be a good weekend / usefull to me. ie, would it be worth the 4/5 hour trip....

Thanks again...

Martin.

 

[LukeWells]

Re: [ukvac] Another monitor question (Help please??)
Monitor discharging is nerve wrecking to most

Yes the monitor should glow, you should also hear a quiet high pitched
noise when a monitor is powered up. You've probably missed connecting
the monitor power up properly. Check you have 120volts coming off the
isolation transformer and follow the 120volt up to the monitor.

Luke

martin@guddler.com wrote:
>
>
> Quick update before i trundle off to bed ;o)
>
> Trawled back through the messages to the beginning of May and still can't find this monitor "introduction" as i recall it being called.....

>
> Forgot to mention that this is getting rather desperate - i move house the w/e after next which only gives me this weekend to get the machine back together (preferably working, the fewer times i have to discharge that screen the better in my books - very nerve wracking to a newbie!!)

>
> I could transport the machine in bits, but the chances of the tube being in one piece at the other end would be rather slim methinks.

>
> Finally, from someone who's been to one before, would the "1.8 meet" (who thinks up these names!!) in Honiton be a good weekend / usefull to me. ie, would it be worth the 4/5 hour trip....

>
> Thanks again...
>
> Martin.

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[guddler]

Re: [ukvac] Another monitor question (Help please??)
>Monitor discharging is nerve wrecking to most
>
>Yes the monitor should glow, you should also hear a quiet high pitched
>noise when a monitor is powered up. You've probably missed connecting
>the monitor power up properly. Check you have 120volts coming off the
>isolation transformer and follow the 120volt up to the monitor.
>

Cheers, i shall check this out tonight. Just to confirm, the 120v is AC not
DC, right?

And the isolator is the big square thing that looks like its got paper in
it! (only kidding i do know really - whether i should be messing with it is
another matter).

Just want to make sure when i do find the voltage that i'm sure is there, i
find it on the end of me meter, not the end of my fingers!!

Martin.
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[LukeWells]

Re: [ukvac] Another monitor question (Help please??)
yes its 120vac

you should be perfectly safe testing it while its on as long as you keep
your fingers at a safe distance. I would recommend getting some of those
clip on probes for your meter. They are useful for things like this so
you can clip them on with the power off, power on the machine and stand
back if you are a total whimp like me

Luke

Martin White wrote:
>
> >Monitor discharging is nerve wrecking to most
> >
> >Yes the monitor should glow, you should also hear a quiet high pitched
> >noise when a monitor is powered up. You've probably missed connecting
> >the monitor power up properly. Check you have 120volts coming off the
> >isolation transformer and follow the 120volt up to the monitor.
> >
>
> Cheers, i shall check this out tonight. Just to confirm, the 120v is AC not
> DC, right?
>
> And the isolator is the big square thing that looks like its got paper in
> it! (only kidding i do know really - whether i should be messing with it is
> another matter).
>
> Just want to make sure when i do find the voltage that i'm sure is there, i
> find it on the end of me meter, not the end of my fingers!!
>
> Martin.
> _________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
>
> Share information about yourself, create your own public profile at
> http://profiles.msn.com.
>

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[Dave2084]

RE: [ukvac] Another monitor question (Help please??)
At 22:15 26/09/00, you wrote:
>Now, does anyone know of a suitable replacement for this monitor (color
>14" from SI cocktail). I am only saying this as i know James Watt and at
>least one other were looking for cap kits and i presume had no luck, but
>the streaking on mine is getting bloody annoying.

I thought of hacking a 14" cub into mine ... or a cap kit would do for me too.

Does you cocktail have un-drilled SI part II control panels?

If so would you like to swap with me for some very nice 2 button plus 8 way
stick panels (made this way not drilled) with no visible wear? Mine has SI
part II in it and I'd quite like to have the correct CP's too.

Dave Langley
NOTE: New Email address: robotron@ntlworld.com

Williams Documents + More On-line @ www.robotron-2084.co.uk

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[d-type]

RE: [ukvac] Another monitor question (Help please??)
Try turning down your contrast, and your Screen control on the LOPT - it
might go away. The you can re-tune it.

You might also be able to fix it by fiddling with the pots on your neck PCB.
BUT, remember where the controls were BEFORE you move them so you can put
them back if you need to.

Phillip Eaton (D-Type/Flip-Flop)
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>

 

[Dave2084]

RE: [ukvac] Another monitor question (Help please??)
At 22:55 26/09/00, you wrote:
>I take it the streaking IS the evidence of it needing a cap kit then? The
>colors are pretty spot on and there is no burn in, it just looks like
>someone has smudged the color running vertically down away from all the
>moving sprites.

Hmmmm ... my supergun does this if the video ground is not wired up on
JAMMA adaptors.
I take it the Video signal is grounded?

Dave Langley
NOTE: New Email address: robotron@ntlworld.com

Williams Documents + More On-line @ www.robotron-2084.co.uk

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[d-type]

RE: [ukvac] Another monitor question (Help please??)
Which controls you have depends on the manufacturer of the monitor. Find out
which monitor you've got (look for manufacturers model number) and have a
look on www.spies.com/arcade for a manual for it.

Where near Northampton are you?

Phillip Eaton (D-Type/Flip-Flop)
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>

 

[guddler]

RE: [ukvac] Another monitor question (Help please??)
Cheers for the pointer - the monitor now works (more in a mo). The lack of glowing was down to masking tape round the end of the tube (that'd do it!! - but i left it well alone), the lack of anything else was discovered by accident.

After checking out all voltages okay i was about to give up for the night when prodding around revealed a badly bent pin which should have been going into the neckboard, but wasn't if you know what i mean...some VERY careful straightening out of the pin solved the problem.(must be more careful next time!)

Now, does anyone know of a suitable replacement for this monitor (color 14" from SI cocktail). I am only saying this as i know James Watt and at least one other were looking for cap kits and i presume had no luck, but the streaking on mine is getting bloody annoying.

The SI manual simply states there is no alternative part, but i don't beleive that for a second.....;o)

Cheers for now,
Martin (from now on Guddler)

 

[guddler]

RE: [ukvac] Another monitor question (Help please??)
Alas no - they are original (japanese too!), but someone's beat me to it and hacked a second button into them. At least the second button matches the first, and the CP is pretty well unmarked (after i removed all the stickiness left from the evostick it seemed to be covered in - carburettor cleaner, did a fantastic job!). I got the machine from Chris Jackson, and aparently prior to that it was still being operated (50p per play!!), so i guess it's had a fairly hard life.

I have (or rather am making) some four button 8-way CPs for it out of brushed aluminium at the moment as i don't even have the original board and the machine has been Jamma'd (badly until i rewired it), so i may as well make use of all the buttons!!

I take it the streaking IS the evidence of it needing a cap kit then? The colors are pretty spot on and there is no burn in, it just looks like someone has smudged the color running vertically down away from all the moving sprites.

Guddler.

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[guddler]

RE: [ukvac] Another monitor question (Help please??)
Okay, sorry to be ignorant, BUT i don't have a contrast control (unless i missed it), and LOPT??

But, before you go too mad with a full on explantion, you've just tipped my memory, the only control it does have on the neck board (focus i beleive) i'm damn sure i twiddled when i had the tube out (god knows why, but there you go), i shall have a twiddle....ooer.

Cheers,
Guddler.

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[guddler]

RE: [ukvac] Another monitor question (Help please??)
It is, i shall check how well it is grounded. The board (a Burnin Rubber boad) didn't specifically have its own VGrnd, so i ran one straight from the end of the Jamma connector.

Certainly the picture goes heywire without a ground at all...

Guddler

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[guddler]

RE: [ukvac] Another monitor question (Help please??)
Unfortunately the monitor board is TOTALLY unmarked - this has caused a few people problems i beleive, but James Watt answered a query on that one over the weekend and he reckons he has tracked his down (same machine) as being a "cm-r14" (well he thinks anyway), so with this maybe i can track something down...

BTW - Irthlingborough

Guddler.

> ** Original Subject: RE: [ukvac] Another monitor question (Help please??)
> ** Original Sender: "D-Type" <egroups@freedomprojects.co.uk>
> ** Original Date: Tue, 26 Sep 2000 17:26:29 -0400

> ** Original Message follows...

>
> Which controls you have depends on the manufacturer of the monitor. Find out
> which monitor you've got (look for manufacturers model number) and have a
> look on www.spies.com/arcade for a manual for it.
>
> Where near Northampton are you?
>
> Phillip Eaton (D-Type/Flip-Flop)
> ---------------------------------------------------------------------
> Tel: +44 (0) 1536 504434
> Tel2: +44 (0) 1536 268424
> Mobile: +44 (0) 7775 726366
> Fax: +44 (0) 845 334 8195
> Email: d-type@freedomprojects.co.uk
> Website: http://www.freedomprojects.co.uk
> ---------------------------------------------------------------------
>
> >

 

[guddler]

RE: [ukvac] Another monitor question (Help please??)
Unfortunately the monitor board is TOTALLY unmarked - this has caused a few people problems i beleive, but James Watt answered a query on that one over the weekend and he reckons he has tracked his down (same machine) as being a "cm-r14" (well he thinks anyway), so with this maybe i can track something down...

BTW - Irthlingborough

Guddler.

> ** Original Subject: RE: [ukvac] Another monitor question (Help please??)
> ** Original Sender: "D-Type" <egroups@freedomprojects.co.uk>
> ** Original Date: Tue, 26 Sep 2000 17:26:29 -0400

> ** Original Message follows...

>
> Which controls you have depends on the manufacturer of the monitor. Find out
> which monitor you've got (look for manufacturers model number) and have a
> look on www.spies.com/arcade for a manual for it.
>
> Where near Northampton are you?
>
> Phillip Eaton (D-Type/Flip-Flop)
> ---------------------------------------------------------------------
> Tel: +44 (0) 1536 504434
> Tel2: +44 (0) 1536 268424
> Mobile: +44 (0) 7775 726366
> Fax: +44 (0) 845 334 8195
> Email: d-type@freedomprojects.co.uk
> Website: http://www.freedomprojects.co.uk
> ---------------------------------------------------------------------
>
> >

 

[P-Man]

Re: [ukvac] Another monitor question (Help please??)

 

[guddler]

Re: [ukvac] Another monitor question (Help please??)
Well, this is the most info i've seen to date......good job, however if you
could only find those scans......beers would be on me forever (welllll,
close)!!

One question whats (a) LOPT ?? I have plenty of adjustments (as you no doubt
know as you seem to know your taito monitor chassis!)!, but never played
with me LOPT - unless i just don't realise it!

Guddler.

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[guddler]

RE: [ukvac] Another monitor question (Help please??)
I'm begining to suspect the game board not the monitor at all....

I just changed to my Crazy Kong board, and whilst it has always looked a bit garish, it doesn't show the same problem as the other board (on which i have found 3 very hot ICs)

The only thing to bear in mind is that it may not show up the fault as it mostly has a black background.

Guddler.

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[John Bennett]

Re: [ukvac] Another monitor question (Help please??)
In article <002101c0280c$b15489c0$fe69073e@serv>, Martin White
<martin@guddler.com> writes
>One question whats (a) LOPT ?? I have plenty of adjustments (as you no doubt
>know as you seem to know your taito monitor chassis!)!, but never played
>with me LOPT - unless i just don't realise it!

Line output transformer. It's the violent bit that has a bit of thick
cable going to the "death" suction cup on the back of your monitor.

The monitors focus and brightness voltages are normally derived from the
HT output divided down through a resistor arrangement. This is normally
a small plastic module mounted on or next to the LOPT. While it's knobs
can usually be adjusted with fingers, it might be better to use an
insulated screwdriver to adjust them from a distance, although use
extreme gentleness, since it's a rather hard and expensive thing to
replace on older games.

--
Clive Mitchell

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DATA Imported from archives: originally posted by Clive Mitchell (clive@emanator.demon.co.uk)

 

[PaulSwan]

Re: [ukvac] Another monitor question (Help please??)
There is a scan of the Toei 19" (CM-A20 I think?) on spies somewhere and
I must say the scope waveforms and voltages they've annotated on EVERY
transistor pin makes it a piece of piss to fix some faults on these
things if you have access to a scope.

The 19" is similar to the 14" version. There is a board layout diagram
in there as well so you can compare against your chassis to see what
you've actually got.

Regards,

Paul.

Andy Welburn wrote:
>
>