Re: TECH: freeze spray?

On Jan 30, 10:04 am, james cardona <JAMES.CARD...@xxxxxxxx> wrote:
On Jan 29, 10:58 pm, James Sweet <jamesswe...@xxxxxxxxxxxxx> wrote:



james cardona wrote:
Just bought a tempest (By the way - THANKS TONY!!!)
Had a known issue when I bought it - the green doesn't come on for
about a half hour.  Last three days I powered it up and timed it,
almost exactly a half hour each time then the green pops on.  Checked
for broken solder joints on the green drive circuitry on the CPU
board
and found nothing.  I guess next step is to put some freeze spray on
each of those chips and see if the green goes away.
Problem is that I have never done that, and I am not exactly sure
what
to do, or which product to use.  Is there a possibility of doing any
damage doing this?  Like I said the board works right now.  Is the
spray conductive?
Thanks in advance,
Jim

Are you sure the problem is in the game board and not just a solder
joint in the monitor? The latter are very common.

Freeze spray is simple, all it takes is a quick shot on suspect
parts/areas to see if the symptoms change. Little chance of damage, but
don't freeze the crap out of it, it only takes a bit.

FYI, those cans of air duster that you can find cheap at Costco and
other places sometimes are the same stuff as freeze spray only they lack
the internal straw so you have to hold the can upside down.- Hide quoted text -

- Show quoted text -

I thought about the monitor but I have a second half-working board (x-
axis issue) in which the green always shows no problem so I figure it
must be the CPU board

Although it's simple enough to try- I still don't think freeze spray
is going to do it... that would going in the opposite direction
compared to what's taking place... The game warms up and THEN you have
a green signal. You may have looked at the solder joints, but have
you tried physically pushing on any of the ICs that are both part of
and feeding the green circuit while it's on? The whole thing just
seems like more of a solder joint issue than anything else...
.

Relevant Pages

  • Re: TECH: freeze spray?
    ... for broken solder joints on the green drive circuitry on the CPU ... Freeze spray is simple, all it takes is a quick shot on suspect ... The game warms up and THEN you have ... Let it warm up until you get green, then give a shot of spray to suspect parts until green goes away. ...
    (rec.games.video.arcade.collecting)
  • Re: Marantz CD94 /Philips CD960 need repair help !
    ... Might want to check for fractured solder joints in the power supply on the ... Since it fails when warm, you might also want to get some freeze spray, and ... down cycles caused the connections to fail on the power transformer ...
    (sci.electronics.repair)
  • Re: TECH: freeze spray?
    ... Had a known issue when I bought it - the green doesn't come on for ... for broken solder joints on the green drive circuitry on the CPU ... Freeze spray is simple, all it takes is a quick shot on suspect parts/areas to see if the symptoms change. ... Little chance of damage, but don't freeze the crap out of it, it only takes a bit. ...
    (rec.games.video.arcade.collecting)
  • Re: OT: Arcade monitor help
    ... If it does NOT make any sounds when you do this your monitor ... Check for "cold" ... solder joints (solder that breaks away from its component pin/leg from ... connector on chassis. ...
    (rec.games.pinball)
  • Re: Monitor Problems
    ... LED on the front of the monitor was off but you could hear the high ... voltage hum when switched on. ... but some of the solder joints on the circuit board at the ... their solder joints during shipping, ...
    (comp.sys.apple2)