i am confused here

saleem

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what are them glass things that looks like resistors that are on games like missile command and loads of others too.i got a missile command board and i broke a glasss thingy (i will call it) now when i look at c58 which is the location of this thingy,its says its a ceramic radial lead capacitor.it looks more like a resistor to me.

am i safe to buy the part it says it is in the schema parts list?

short story.

i got 2 mc cocktails,i had probs with 1 as i got no 5v at the board,i pordered 2 recap kits for ar2,well they came and the semi working cocktail i recapped its bar2 and the transistor for +5 i replaced (from the capkit) and all was well.incidently the other cocktail has no power whatsoever,i think the wided transformer is dead as dodo.

anyways,the game booted up and even played,well i was taking pics of it and i was setting the phone cam up and was looking away from the cocktail,i looked at the cocktail to take pic and noticed the pic was turned upside down.like it was showing the pic to the bottom.i turned off and on the cocktail and all i got then was green screen and garbage.

well cos i got 2 cocktails i tried the other board which i knew was not working when the cocktail was running ok,i tried it in the cocktail after it went funny and all i got was a blue screen,to cut long story short i have swapped roms and cpu etc to one board from the other and when i was lifting a chip i broke the glass thingy.

so what are they,the glass resistor type thingies?

are they ceramic radial lead capacitors like the part list states?

thanks.
:)

:)
 
They're ceramic radial lead capacitors.

They are just encased in a glass envelope. Usually they're .1uf, just used as "deglitching" caps for the logic chips. They're not even strictly necessary for the game to work, but it's nice to have them all there. You can replace them with any cap of the proper value.

But these caps are not critical - they're just to reduce switching noise in the logic power supply. They are not causing your problem.

-Ian
 
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