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MAME owes italie many thank yous, hah
Reged: 09/20/03
Posts: 15229
Loc: BoomTown
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Re: Easy monitor question...
05/04/13 08:51 AM

> Any suggestions would be welcomed. Monitor diagnosis & repair is beyond my limited
> knowledge.
> Story: Took chips out a game (small bartop cab) to dump. Stored in garage until this
> week when I put the chips back in. Fired it up and nothing. Re-seated chips still
> nothing. PCB leds on. Checked wiring and voltages - all OK. Open the back up and
> there is just a small whisp of smoke(REAL small)... Finally track it down to the seal
> between where the guns go into the back of the tube(?)

I'm not following with the term "seal". The neck isn't seamed. Are you saying the smoke came from the neck board, or is the tube cracked? Or are you referring to the plastic guide that keeps the neck pins?

If the smoke came from the glass of the neck your tube is shot/cracked (never personally seen smoke come from the tube). If the smoke came from the neck board, there is hope. Pull the neck board and start looking at resistors/transistors/caps for damage.

> I imagine it's dead...Is it repairable??
> Also, shouldn't the game still boot(w/sounds) even with a bad crt?

Yeah, dead monitor wouldn't affect PCB voltages.

> I also have an old Pole Position monitor that works(?) Turns on and off but to a
> white screen, it can be turned down to dark. Haven't got the board working yet so I
> haven't tried another board with it yet. Any ideas on this one?

Possibly the game board, possibly the monitor chassis. Too little info to tell.

Entire thread
Subject Posted by Posted on
* Easy monitor question... Bad A Billy 05/04/13 05:18 AM
. * Re: Easy monitor question... italieAdministrator  05/04/13 08:51 AM
. * Re: Easy monitor question... Bad A Billy  05/04/13 11:56 PM
. * whhhhhOOPPP....whhhooooOOOOOP....... Danger Will Robinson.... italieAdministrator  05/05/13 12:29 AM
. * Re: whhhhhOOPPP....whhhooooOOOOOP....... Danger Will Robinson.... Bad A Billy  05/05/13 04:47 AM

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