Author Topic: TMNT Faulty Display  (Read 161 times)

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Offline Boots

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TMNT Faulty Display
« on: June 11, 2013, 10:05:01 PM »
Hey Guys

This has started happening to my TNMT.
You can see that the top/centre of the display is not working tapering out to the outside edges.
It looks slightly better with the display test mode.
Anyone got any tips as to what might be causing it?

Offline MartyJ

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Re: TMNT Faulty Display
« Reply #1 on: June 12, 2013, 12:59:35 PM »
Is the problem occurring in test mode?

Hard to tell by looking, but if its just like a 'wave' of faded or poorly lit pixels and not certain rows / columns I'd say its outgassing.

With power off, just reseat your connectors (inc ribbon cables).  Next I'd check the voltages at your display to make sure they are in spec.

 

Offline Boots

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Re: TMNT Faulty Display
« Reply #2 on: June 12, 2013, 09:11:12 PM »
Is the problem occurring in test mode?

Hard to tell by looking, but if its just like a 'wave' of faded or poorly lit pixels and not certain rows / columns I'd say its outgassing.

With power off, just reseat your connectors (inc ribbon cables).  Next I'd check the voltages at your display to make sure they are in spec.
 

The problem is not quite as bad in test mode for some reason.
The voltages all look spot on exactly right except the 100V is 107V and the 98V is 96V, I wouldn't think that small amount would cause a problem.
Looks like I need a new display, anyone got one for sale?

Anybody bought anything from MAD amusements before?
They have replacement display glasses for $160.

Offline Mr Pinbologist

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Re: TMNT Faulty Display
« Reply #3 on: June 12, 2013, 10:15:59 PM »
Is the problem occurring in test mode?

Hard to tell by looking, but if its just like a 'wave' of faded or poorly lit pixels and not certain rows / columns I'd say its outgassing.

With power off, just reseat your connectors (inc ribbon cables).  Next I'd check the voltages at your display to make sure they are in spec.
 

The problem is not quite as bad in test mode for some reason.
The voltages all look spot on exactly right except the 100V is 107V and the 98V is 96V, I wouldn't think that small amount would cause a problem.
Looks like I need a new display, anyone got one for sale?

Anybody bought anything from MAD amusements before?
They have replacement display glasses for $160.

I've bought quite a lot of parts from MAD, including a couple of DMD displays... never had any probs ordering from them.

Offline v8racefan

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Re: TMNT Faulty Display
« Reply #4 on: June 12, 2013, 10:57:02 PM »
If the turtles is a keeper I'd get a led display from pinled
Pinballs in my collection Elvira, Stern Grand Prix, Bally Corvette, Creature from the Black Lagoon, Judge Dredd, Black Rose and Data East Guns n Roses.