Re: Asteroids with no video

-----Original Message-----
From: "Sir Poonga" <sirpoonga@hotmail.com>
To: vectorlist@vectorlist.org
Date: Mon, 18 Jul 2005 10:31:49 -0500
Subject: VECTOR: Asteroids with no video

>
> Hello all. I've been researching this over the last several weeks, I
> finally found this place :) I picked up an asteroids game for free :) Just
> no video, everything else seems to work.
>
> It's a WG 19V2000 monitor.
> The problem is the F100 fuse blows right away when the monitor is powered
> up.
>

obviously a short.

> I also hear it might be a bad HV diode??

that wont blow a fuse.

>
> Either way this requires dicharging the monitor which is something I don't
> want to do on my own. So I am thinking about calling a local tv repair
> place. Good idea?

bad idea, very bad.
most tv guys just short the cap with a pair of screwdrivers,
infact most tv people should ride a horse to work and wear spurs on there boots ;-)

a few things,

you dont need to discharge monitors unless your clumsy or stupid, i have not dischaged a tube in over 20 years - just watch your fingers!

check the earth wires between the mains-cable and the monitor/pcb's etc.
check the chassis transistors and insulators as already mentioned.

look for obvious bad soldering or burned parts,
check the connector on the gameboard - if the end tracks look heated then replace the edge-connector.
if it looks o.k. then replace it anyway.

i have far to many burned atari pcb's here to want to see any more.

once it works you can check the 5v with a meter and find out if your going to have to replace any chipsockets.

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Received on Mon Jul 18 12:28:39 2005