Re: Tailgunner has a special monitor?

From: Zonn <zonn_at_concentric.net>
Date: Mon Aug 11 1997 - 13:49:00 EDT

At 10:28 AM 8/11/97 -0700, you wrote:
>Zonn said:
>
>The slight modification is a jumper(s) on the monitor that routes the +/-
>15v to some unsed pins on the 8 pin socket.
>
>
>--
>
>There is a PC layout drawing of the monitor board in the Star Castle
>board (should have thought of looking at the board layout and not
>just the schematic, duh..)
>
>There is a spot for an 8 pin OP Amp just to the left of the X DAC
>and it's wired up as a unity gain non-inverting amplifier. The one
>thing other than installing the part you have to do is install a
>jumper (or a resistor.. someone with a monitor with these parts
>populated would have to tell, it's coming off of pin 2 of the 8
>pin DIP).
>
>I would guess the wire mod brought +/- 15 over to pins 7 and 4 of
>the OP Amp, respectively.

It's interesting that they laid out the socket for a OP-AMP. I've never
seen an op-amp installed there, they just use that socket to plug in a cable
that leads back to the sound board. Makes you wonder what their original
intent was?

-Zonn
Received on Mon Aug 11 10:43:43 1997

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