RE: Question on ELMINATOR SOUND CARD with NO AUDIO Output and X/Y Output.....

Mark,
^^^^^

 
 First of all Thanks, will look at the CPU BOARD
first then go from there.

 Also one last thing on this, topic, do you
or anyone for that matter, know if I can actually
and safely hook up the X / Y OUTPUTS from the G-80 CARD(See Below)
to a SCOPE or a Small 4" by 4" X/Y Black and White Monitor
and just leave the Red Green Blue Wires Disconnected ???

==============================================================

Numbered counting down from the top. This connector normally has
2 wires of the same color, and a bare wire for the Shield wire.

1 ----- Y
2 ----- Shield
3 Empty
4 ----- X

==============================================================

 I do not want to Blow anything on the X/Y Boards so want to be sure.

Arcadius..........

          -----Original Message-----
From: Mark Jenison [mailto:jenison@enteract.com]
Sent: Monday, September 30, 2002 4:31 PM
To: vectorlist@synthcom.com
Subject: Re: VECTOR: Question on ELMINATOR SOUND CARD with NO AUDIO
Output and X/Y Output.....

> Seriously, though I have a Question, on the Good Old SEGA G80
> Hardware in particular the Eliminator Boardset

[snip]

> Initially I hook up the AUDIO Wiring as per the Schematic, noting that
> there are Only 2
> Connections a White Wire and a Silver Bare Wire, so I presume that the
White
> Wire
> goes to PIN 4 or 1 I forger, but basically Not the GND PIN of the Audio
Out
> on this Sound Board,
> but the Other PIN then Connect the Silver (Bare) Wire the the GND PIN.

I have no idea about pin numbers; Sega didn't really do a good job with
labeling the board pins or connector pins or keying the connectors...my FAQ
covers the correct hookup for these. All I know is for 4-pin sound
connectors, ground/shiled wires go nearest the card cage.

> Anyway I feed this through a 10K POT then into the AUDIO IN of the G-80
> POWER SUPPLY.
> Also and as per the Schematic I wired up a 330 Ohm Resistor on Leg 3 of
the
> 10K Pot and ran
> this back to GND (I hope that this is Correct ???)

One end of resistor goes to leg 3 of 10k pot...the other end goes to the
shielding/gnd

> Now I finally power it all up and all I hear is a STATIC (White Noise)
> Sound which starts up, then
> dies off within 5 seconds, then starts up again and stays up and Staticy
the
> entire time that I have the
> Power On. Also volume will Adjust O.K. but again I only hear STATIC all
the
> time.

Does not sound good, something is wrong; probably not the sound board,
though. More likely the CPU or XY pair are causing a problem. Make sure
the voltages are all good.

> Press RESET on the CPU BOARD (Mind you still playing Blind as I have no
> ELECTROHOME MONITOR)
> after several seconds the Led will Blink once then remain off the entire
> time that the Cage is plugged in.

This is regular behavior for test mode, though seeing the picture would
help...

> So Still No Autio and the question I have then, is What is the Proper
Hook
> Up from this
> MEATBALL (ELIMINATOR) Sound Card to the G-80 Power Supply Audio In
> (Pin 1 = ??? / Pin 4 = ???)

This should be covered in my Sega XY FAQ:

http://www.enteract.com/~jenison/mars/faq/SegaXY.FAQ

> Also where should the 10K Pot be in this Arrangement ???

Sounds like you have it correct.

> Again I believe my hook up is Correct but wanted to double check.
>
>
> Finally and this is regarding the X/Y Output, on this Boardset, as I
would
> like to Test this Board,
> prior to hooking it up to my 19K610x Wells Gardner Color Vector Monitor.
> Also I do have a Scope as well
> as a Small 4 Inch by 4 Inch Black and White Vector Monitor (basically a
> Scope Monitor minus the Scope Electronics)
> so wanted to know if I can just Hook up the X OUT to X INPUT on this
Monitor
> then Hook up the Y OUT to Y INPUT
> and of course have GND Hooked Up also ???
>
> In addition and since there is No Z OUTPUT, on the G-80 BOARDSETS, I
> presume that I can leave this Disconnected
> with no trouble ???

I haven't ever hooked up a Sega XY set to a WG6100, but I would suspect the
necessary info would be in this document:

http://www.spies.com/arcade/conversion/SegaToAtariXYConv

> Finally and if my Eliminator (Meatball) Sound Board is Toast does anyone
> have a Spare for Sale ???
>
> Appreciate and any All Input from you G-80 Types, in particular anyone
whom
> has an ELIMINATOR Game.....

--
Mark Jenison
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