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-   -   Super Mario Bros! (http://www.videokarma.org/showthread.php?t=245919)

Kamakiri 09-12-2009 07:16 PM

Super Mario Bros!
 
2 Attachment(s)
Picked up my Super Mario Bros, finally, from my friend's place.....this is one I got from Roundscreen years ago, but never picked up from his house, with my untimely double move and divorce.....

So, here she is! Need to get the screen fixed, as it compresses at the top. Any ideas as to where to start, guys? Already tried the vertrical size, and it just rolls up more, top and bottom.

jpdylon 09-12-2009 09:12 PM

NICE!

There are probably a few bad capacitors in the vertical output section - if not a driver/output transistor as well. Also look for open or increased resistor values in the vertical output circuit. Any one of these can cause the foldover you see.

freakaftr8 09-13-2009 12:45 AM

X2

all that use and abuse after yeArs of use kill caps in those video monitors. I worked on a few of those in the past for an arcade center up here and slot of them were always leaky elecrolytics and resistors. Good luck that looks like a sweet and clean arcade!!

Quote:

Originally Posted by jpdylon (Post 2954190)
NICE!

There are probably a few bad capacitors in the vertical output section - if not a driver/output transistor as well. Also look for open or increased resistor values in the vertical output circuit. Any one of these can cause the foldover you see.


Kamakiri 09-16-2009 06:57 AM

Stupid question, but can't I just adapt a regular TV chassis somehow, or is this something special? :dunno:

roundscreen 09-16-2009 08:43 AM

Tim
The crt still looks good so I would re cap the monitor. It is a RGB monitor so a tv chassis would not work. Google amusements plus in Rochester and give them the make and model number of that monitor. They might have a cap kit for it. I can show ya how to re cap the monitor, It is not that hard and will last for years when done. The cabinet did clean up nice, Trust me, It did not look that good when Tim got it
Ed

zenith2134 09-16-2009 03:41 PM

Probably 4 or 5 electrolytics tops, since it does look good as everyone's mentioned. Is it a Sanyo monitor by any chance? I remember seeing a Donkey Kong with one of those and it too had vertical troubles.

zenithfan1 09-16-2009 04:18 PM

That is awesome! It's been years since I've seen one of those!

roundscreen 09-16-2009 07:44 PM

Quote:

Originally Posted by zenith2134 (Post 2954539)
Probably 4 or 5 electrolytics tops, since it does look good as everyone's mentioned. Is it a Sanyo monitor by any chance? I remember seeing a Donkey Kong with one of those and it too had vertical troubles.

I don't recall what monitor Tim's game had. It was taken out of service long before I worked there. {They might have changed it with a newer one.}
I have a Sanyo monitor in my donkey kong and the picture is vary clear and bright with no burns. The best thing to do with the old monitors is re cap the whole chassis or it will fail again.
Ed

zenith2134 09-16-2009 08:24 PM

That's true, Ed. Capacitors can't be expected to last longer than 20-25 years !! After all they were never meant to last that long really....

Kamakiri 09-17-2009 07:13 AM

After an hour or so of play, the monitor's color is starting to fade.....kind of looks like a sunfaded photograph now. I'll take some more pics and find out what kind of monitor's inside.

roundscreen 09-17-2009 06:59 PM

I took a look in the warehouse today and we still have some of the old monitors.
We might have one like yours and the boss will sell it to me cheap.
Also the fade could be the computer power supply. So we will need to see if your game has the old power supply. Some times you can convert older games to a newer power supply.
Ed

Kamakiri 09-17-2009 11:04 PM

Been meaning to chat with you.....I gotta have you over and show you how nicely displayed everything is. You'll be very happy :)

I just got a little cash, too, and I needs me a nice "daily driver" for the living room ;)

roundscreen 09-19-2009 06:33 PM

Same here, Been bad and picked up more set's for ya.
I will give you a call when I get home from work Sunday night.
Ed

MRX37 09-19-2009 08:06 PM

Quote:

Originally Posted by zenith2134 (Post 2954565)
That's true, Ed. Capacitors can't be expected to last longer than 20-25 years !! After all they were never meant to last that long really....

33 years and counting for my 1976 Wards Airline set...

zenith2134 09-20-2009 11:13 AM

Look at the manufacturer data. Needless to say, there are always exceptions . 46 years and counting on one of my Admiral sets.


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