They do have a tendency to fry IF the power supply for the game board goes
wonky. This is the normal cause of monitor failure, the power supply
drifts, or the ground contact burns up, then the input voltages to the
monitor X/Y drives goes outside of normal bounds...Smoke erupts....I
recommend that ANY SEGA game or any game with a GO-8 monitor get a computer
grade switching power supply installed instead of the original supply AND
you put a cutoff relay in that will disconnect power to the monitor when
the power supply looses it's 5VDC. The simplest method to do this is to
hook a ^VDC relay coil across the +5VDC leads, and have the N.O. contacts
on the relay close the circuit for the AC power to the monitor. A 6VDC
relay will drop out around 4VDC, so that should serve to cut the power
before the board goes too far off the rails. If someone wants to develop a
proper circuit for the cutoff relay (or solid state relay) that might be a
good idea. I have no time...
John :-#)#
At 09:01 AM 5/14/00, Christopher X. Candreva wrote:
>I have to say I have it pretty lucky. My wife let's me get away with a
>lot. I've filled the basement 10 machines, and if I could realisiticly find
>a place to put more, she'd let me get them.
>
>However, after waiting almost a year for Star Trek to work, I suppose that
>wasn't the time to tell her "Oh, buy the way, never leave this one on and
>leave the room."
>
>"Why ?"
>
>"They have a tendancy to start on fire."
>
>Needless to say, she's a bit worried. To her credit she didn't even suggest
>getting the thing the hell out of the house, but she would like some more
>details on how dangerous this thing is.
>
>
>The warnings about the G08's are common, but I've never seen it discussed in
>detail. Do they really start on fire ? What exactly starts on fire -- just
>some component smoke, or should we be concerned about the wood case actually
>igniting ? Is it one componant that is self-destructive, and could it be
>replaced with something bigger, or is it just a general design flaw ?
>
>When I first looked at the thing, and saw transistor legs bent up with wires
>soldered to them, I could see potential trouble. The fan bolted right to the
>monitor heat sink amazes me too -- how a monitor can generate so much
>heat. It does come up much faster than the WG's, but I'm wondering if that
>is actually part of the problem.
>
>
>-Chris
>
>
>
>==========================================================
>Chris Candreva -- -- (914) 967-7816
>WestNet Internet Services of Westchester
>http://www.westnet.com/
>
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John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
http://www.flippers.com
"Old pinballers never die, they just flip out."
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