Re: Gravitar Cocktail

For the sake of an hours work why not rotate the CRT 180% , its only four
screws! you could probably leave the Anode cap in place if you have someone
help you.
----- Original Message -----
From: "Rodger Boots" <rlboots@cedar-rapids.net>
To: <vectorlist@vectorlist.org>
Sent: Friday, March 24, 2006 9:28 AM
Subject: Re: VECTOR: Gravitar Cocktail

> But if you tie them either high or low the picture will be low for one of
> the players.
>
> I'd still recommend the yoke switch on the monitor---if you ever need to
> sell the board having no modifications on it would be a good thing.
>
>
> Jess Askey wrote:
>
>> Looking at the schems... I had to dig a while.... there are indeed Invert
>> X and Invert Y signals on the PCB. However, they are cpu controlled and
>> it would require slicing two traces. If you have schematics, then you can
>> see the outputs on R9 (74LS273) pins 12 and 15 (sheet 5A of schems). If
>> you cut these two traces, then you can tie them either high or low to
>> flip each axis. the lines go to a set of Analog switches that do the
>> flipping.
>>
>> This might be easier than adding an inverter?
>>
>> Bob Langelius wrote:
>>
>>> Thanks to all for the advice!
>>> I'm going to try the inverter on the PCB. I'll post how it turns out.
>>>
>>> Bob
>>
>
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Received on Fri Mar 24 04:37:06 2006