Re: composite on 8032...

From: Steve Gray <sjgray_at_rogers.com>
Date: Wed, 14 Sep 2016 13:53:29 +0000 (UTC)
Message-ID: <2038630857.917550.1473861209153@mail.yahoo.com>
I'm curious, can you give us more details?
The CRTC chip can be programmed to generate different screen configurations, and hence the different Editor ROMs. The monitors themselves also have adjustments for height, width etc.
Are you saying he problem is a defective capacitor in the monitor or on the mainboard, or that the capacitor is wrong in conjunction with the composite video circuit?
Steve

      From: William Levak <wlevak@SDF.ORG>
 To: cbm-hackers@musoftware.de 
 Sent: Tuesday, September 13, 2016 11:06 PM
 Subject: Re: composite on 8032...
   

You need to change the capacitor on your hoizontal sweep frequency.


On Fri, 9 Sep 2016, didier derny wrote:

> I tried to get a composite signal
>
> with this schematics: 
> http://www.6502.org/users/andre/hwinfo/crtc/comp_pucoe_v1.0c-sch.png
> and this rom: edit-4-80-b-50Hz.901474-04_.bin 
> <http://www.zimmers.net/anonftp/pub/cbm/firmware/computers/pet/edit-4-80-b-50Hz.901474-04_.bin>
>
> I get an image a little bit blurry, but a part is missing
> I only see:
> MODORE BASIC 4.0 ***
> BYTES FREE
>
> this part is missing:
> *** COM
> 31743
>
> any idea to get the rest ?  I used the right rom ?
> I choosed it from an excel file I found on the web
>
> thanks
>
> --
> didier
>
>
>
>
>

wlevak@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org

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Received on 2016-09-14 14:00:03

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