Difference between revisions of "C128"

From Hackbox
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Ofcourse for colour 40 coloms I can connect a TV.
 
Ofcourse for colour 40 coloms I can connect a TV.
  
But the 80 coloms colors remained lost.  Until now, I learned that the 128 RGBI is actually CGA compatible!  I do have an EGA monitor.  This works except that all low-intensity colors are garbled (white stripes).  As a test I tried disabling pin 7 by putting a little tape on the pin on the male connector.  The colors are correct now.  This proves that pin 7 is the problem.  The 128 RGBI cable doesn't have pin 7 connected but I can't use that because my EGA monitor has the cable attached.
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But the 80 coloms colors remained lost.  Until now, I learned that the 128 RGBI is actually CGA compatible!  I do have an EGA monitor.  Connecting this to the 128 works except that all low-intensity colors are garbled (white stripes).  Using the RGBI cable from the 1901 monitor which doesn't have pin 7 connected solves this problem.

Revision as of 02:47, 21 July 2010

Specification

Commodore 128D (original, not 128DCR)

Condition

Fully working.

I've completely dis/reassembled it, cleaning every part.

Monitor

The original 1901 monitor was broken long time ago and I trowed it away.

Ever since I've used a green PAL monitor with a special handmade cabling to get both 40 and 80 colomns screen. The 80 coloumns RGBI port has a monochrome pin (7) for this purpose.

Ofcourse for colour 40 coloms I can connect a TV.

But the 80 coloms colors remained lost. Until now, I learned that the 128 RGBI is actually CGA compatible! I do have an EGA monitor. Connecting this to the 128 works except that all low-intensity colors are garbled (white stripes). Using the RGBI cable from the 1901 monitor which doesn't have pin 7 connected solves this problem.