rec.autos.simulators

I don't belieeeeeve it!!

Stefan Zscharnac

I don't belieeeeeve it!!

by Stefan Zscharnac » Thu, 22 Mar 2001 03:01:17

I have :)



Juan Vizos

I don't belieeeeeve it!!

by Juan Vizos » Thu, 22 Mar 2001 10:54:28

I hate it when those electrolytic's dry out and blow!...  If only they'd not
skimp on the spec's ....  time for 'television repairman!' ......jv


> I have :)



> > x-no-archive: yes

> > Upgraded me puter. Installed GPL (cause it'll run now), it ran dead
slow.
> > Stuffed me voodoo1 back in, and got a solid 36 fps :-). Tweaked the ini
> > files, downloaded the nocd patch, installed the 1.2 patch, and got FF
and
> > everything else working to my satisfaction :-) Tired out the girlfriend
> over
> > the weekend so she needed an early night last night :-))...

> > So FINALLY I sat down for a good GPL session.

> > Turned me puter on, and the smegging monitor blew up! :-(

> > Anyone got a 200V 470mF electrolytic on 'em? :-)

> > R.

> > Why do they call me Victor?

Eldre

I don't belieeeeeve it!!

by Eldre » Fri, 23 Mar 2001 06:15:54



>Upgraded me puter. Installed GPL (cause it'll run now), it ran dead slow.
>Stuffed me voodoo1 back in, and got a solid 36 fps :-). Tweaked the ini
>files, downloaded the nocd patch, installed the 1.2 patch, and got FF and
>everything else working to my satisfaction :-) Tired out the girlfriend over
>the weekend so she needed an early night last night :-))...

Too much yard work...?<g>

Now THAT sucks...  The fact that you even KNOW what part fried tells me that it
won't be major for you to fix it.  Me, I'd have to spend $100+ to get it
repaired.

Eldred
--
Dale Earnhardt, Sr. R.I.P. 1951-2001
Homepage - http://www.umich.edu/~epickett
F1 hcp. +28.67...F2 +151.26...

Never argue with an idiot.  He brings you down to his level, then beats you
with experience...
Remove SPAM-OFF to reply.

Jan Verschuere

I don't belieeeeeve it!!

by Jan Verschuere » Fri, 23 Mar 2001 10:38:08

Easy to spot..... because of the high voltage involved a failure in one of
those tends to cause the capacitor to split open and catch fire a little, so
they look like they've been BBQ'd too long. ;-)

Jan./been fixing my own stuff for years. Pays to learn a thing or two about
how consumer electronics work.
=---

nascaro

I don't belieeeeeve it!!

by nascaro » Fri, 23 Mar 2001 13:07:29

since it sounds like you know monitors. what is it when the monitor gets
bright(whitish) for a hour then goes black with a blinking power light?????  I
think a few drops of water fell inside it... it was a 6 month old 17"

.


> Easy to spot..... because of the high voltage involved a failure in one of
> those tends to cause the capacitor to split open and catch fire a little, so
> they look like they've been BBQ'd too long. ;-)

> Jan./been fixing my own stuff for years. Pays to learn a thing or two about
> how consumer electronics work.
> =---
> EldredP wrote...
> > <snip>
> > Now THAT sucks...  The fact that you even KNOW what part
> > fried tells me that it won't be major for you to fix it.
> > Me, I'd have to spend $100+ to get it repaired.

> > Eldred
> > --
> > Dale Earnhardt, Sr. R.I.P. 1951-2001
> > Homepage - http://www.umich.edu/~epickett
> > F1 hcp. +28.67...F2 +151.26...

> > Never argue with an idiot.  He brings you down to his level, then beats
> you
> > with experience...
> > Remove SPAM-OFF to reply.

Brian Carabe

I don't belieeeeeve it!!

by Brian Carabe » Fri, 23 Mar 2001 15:21:46

Just a friendly reminder - If you ever decide to open up a monitor, you'd
better know what you're doing. They store thousands of volts for several
weeks to months even if unplugged. Many a tinkerer has been very seriously
injured by getting into a monitor without the requisite knowledge and
properly insulated tools.

Brian


> I hate it when those electrolytic's dry out and blow!...  If only they'd
not
> skimp on the spec's ....  time for 'television repairman!' ......jv



> > I have :)



> > > x-no-archive: yes

> > > Upgraded me puter. Installed GPL (cause it'll run now), it ran dead
> slow.
> > > Stuffed me voodoo1 back in, and got a solid 36 fps :-). Tweaked the
ini
> > > files, downloaded the nocd patch, installed the 1.2 patch, and got FF
> and
> > > everything else working to my satisfaction :-) Tired out the
girlfriend
> > over
> > > the weekend so she needed an early night last night :-))...

> > > So FINALLY I sat down for a good GPL session.

> > > Turned me puter on, and the smegging monitor blew up! :-(

> > > Anyone got a 200V 470mF electrolytic on 'em? :-)

> > > R.

> > > Why do they call me Victor?

Jan Verschuere

I don't belieeeeeve it!!

by Jan Verschuere » Sat, 24 Mar 2001 03:56:29

Well, I don't *know* monitors, just how they work, so don't expect a
specific diagnosis. Electronic appliances are notoriously hard to diagnose
from a distance.

The blinking power light with no apparent activity is indicative of the
power supply entering a sort of "safe mode", possibly due to a short in one
of the supply lines or absence of a feedback signal (like flyback pulses).

The very bright, washed out picture you describe leads me to think the
problem might be located in the "HT-circuit". HT is a voltage (typically
some 140V) which is used to prevent all the electrons in the picture tube
from reaching the phosphor at the front (hence the very bright picture when
it fails). Exactly what in the circuit failed is hard to tell without taking
some measurements (could be the circuit which controls the HT as well), but
this area of the monitor is actually the most dangerous to be working on and
I wouldn't recommend working on it yourself unless you know how to locate
and safely discharge all the high voltage components. I myself would
hesitate to take readings with the monitor "running" (having no picture
doesn't necessarily mean the circuits inside are not "live" <g>).

Why did you leave it running long enough for it to break, BTW? -If all that
happened was some water getting inside, turning the unit off and leaving the
water to evaporate usually does the trick without permanent damage.

Having a fairly young unit fail is no exception (and which is why a warranty
period was instated in the first place). If you look at failures over time
you will notice most failures occur either early or late in the expected
life cycle, with hardly any in the middle. If you plot failures against time
the result is what we engineers call the "bathtub"-curve for a given
appliance. I think the metaphor is obvious.

Jan./anyone want their toaster diagnosed? ;-)
=---

Eldre

I don't belieeeeeve it!!

by Eldre » Sat, 24 Mar 2001 06:02:28



>Hehehe...When a large electrolytic capacitor like that fails, you tend to
>_know_. It went with a huge bang that scared the shit out of me! When I
>opened it up, it was the one with the top missing ;-)

>I ordered one from RS, and it came last night. I stuffed it in, and guess
>what!? The other one failed! D'oh! Should've ordered 2. I just hope they've
>failed from age, and it isn't something else that's blowing them. When it
>did work (for 5 minutes) I got a much better picture than I've had for a
>while, though - it was like brand new :-)

>I'm holding off ordering the GeForce 2, 'till I know whether I'll need a new
>monitor.

How did you know the value of the capacitor?  I'm assuming it was destroyed, so
you couldn't read the markings on the piece itself.  What it printer on the
circuit board?

Eldred
--
Dale Earnhardt, Sr. R.I.P. 1951-2001
Homepage - http://www.umich.edu/~epickett
F1 hcp. +28.67...F2 +151.26...

Never argue with an idiot.  He brings you down to his level, then beats you
with experience...
Remove SPAM-OFF to reply.

Dog-Le

I don't belieeeeeve it!!

by Dog-Le » Sun, 25 Mar 2001 06:06:20

**** Post for FREE via your newsreader at post.usenet.com ****

Even unplugged monitors can be deadly.

I've been bit working on UNPLUGGED monitors more than any other time in my
21 year electronics career.

And that was after using the proper shorting probes and procedures.

In other words, a Novice is in real trouble!

Hint - A discharged CRT can re-acquire a charge from the air after sitting
around a while, like waiting for parts to come in.

I always hit em' with the shorting probe both before removing the high
voltage lead AND before putting it back in.

-Larry


> Just a friendly reminder - If you ever decide to open up a monitor, you'd
> better know what you're doing. They store thousands of volts for several
> weeks to months even if unplugged. Many a tinkerer has been very seriously
> injured by getting into a monitor without the requisite knowledge and
> properly insulated tools.

> Brian



> > I hate it when those electrolytic's dry out and blow!...  If only they'd
> not
> > skimp on the spec's ....  time for 'television repairman!' ......jv



> > > I have :)



> > > > x-no-archive: yes

> > > > Upgraded me puter. Installed GPL (cause it'll run now), it ran dead
> > slow.
> > > > Stuffed me voodoo1 back in, and got a solid 36 fps :-). Tweaked the
> ini
> > > > files, downloaded the nocd patch, installed the 1.2 patch, and got
FF
> > and
> > > > everything else working to my satisfaction :-) Tired out the
> girlfriend
> > > over
> > > > the weekend so she needed an early night last night :-))...

> > > > So FINALLY I sat down for a good GPL session.

> > > > Turned me puter on, and the smegging monitor blew up! :-(

> > > > Anyone got a 200V 470mF electrolytic on 'em? :-)

> > > > R.

> > > > Why do they call me Victor?

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Brian Carabe

I don't belieeeeeve it!!

by Brian Carabe » Sun, 25 Mar 2001 16:05:57

So true, Larry. I noticed a bunch of guys talking about getting into their
monitors and I wanted to warn them, and I'll say it again - An unplugged
monitor can seriously injure you even months after being unplugged! I'm a
broken record, I know, but I want everyone to be aware of this.

If you are not properly trained, never open up a monitor!

Brian


> **** Post for FREE via your newsreader at post.usenet.com ****

> Even unplugged monitors can be deadly.

> I've been bit working on UNPLUGGED monitors more than any other time in my
> 21 year electronics career.

> And that was after using the proper shorting probes and procedures.

> In other words, a Novice is in real trouble!

> Hint - A discharged CRT can re-acquire a charge from the air after sitting
> around a while, like waiting for parts to come in.

> I always hit em' with the shorting probe both before removing the high
> voltage lead AND before putting it back in.

> -Larry



> > Just a friendly reminder - If you ever decide to open up a monitor,
you'd
> > better know what you're doing. They store thousands of volts for several
> > weeks to months even if unplugged. Many a tinkerer has been very
seriously
> > injured by getting into a monitor without the requisite knowledge and
> > properly insulated tools.

> > Brian


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