SSQ - PAL vs NTSC

[MIRKOSOFT]

Hi!


I have one SSQ (Simple Stupid Question):


I'm awaiting US Commodore 128 with NTSC standard and 110V input.


I'm from Europe, Slovakia, here's standard 220V PAL


Voltage converter I have, so there problem is solved.


But I want to connect VIDEO output to C1084S-D1 monitor and RGBI output to C1084-P monitor.


Will be this problem or PAL/NTSC standard is only in TV output?


Many thanks for every reply.


Miro

[DMC]

As far as I remeber you can not connect your ntsc machine to the 1084 in general. If you have an old 1084 it will show the ntsc picture but colors are missing. The newer ones (1084S D1/D2) have serious problems displaying ntsc video.

[MIRKOSOFT]

Hi!


Thanks for reply.


So here is Q which I don't know if is it possible to do it:


Change the VIC & VDC chip from PAL machine to NTSC machine...?


Thank you very much for reply...


Miro

[DMC]

To operate a NTSC machine like a PAL machine you have to do much more than changing VIC/VDC.

The only info I know about transforming a ntsc machine into a pal machine is written down for a c64.

You may have a look at the cbm-faq:

17.2.  How can a turn my NTSC-M 64 into a PAL-B 64 or vice versa?
 
  Changing a C64 from stock PAL-B to stock NTSC-M or vice versa
  requires swapping in the approproate VIC-II chip and the appropriate
  crystal, as well as changing a jumper on the motherboard (The jumper
  has printing near it that indicates whether to cut or connect the jumper).
  Also, if you have a version 1 KERNAL ROM and want to use the built-in
  RS-232 routines, you need to either swap KERNAL ROMs with the other
  computer (not recommended), or obtain a revision 3 KERNAL (recommended). 
 
  Now, if maintaining stock operation is not a complete must, or if you
  just want to tinker, the crystal and jumper modifications can be made
  optional. 
 
  The VIC-II chip has a relaxed tolerance for timing, so it is possible to
  run an NTSC-M VIC-II with a PAL-B crystal and jumper settings.
  The converse is possible as well.  Since the crystal frequency is used to
  generate the frequencies for the TV and monitor output, your TV or
  monitor may not like the resuling hybrid signal very well, but it won't
  break anything.
 
  In addtion, the jumper indicated above determines the divisor used to scale
  down the crystal frequency for the CPU.  For PAL-B units, the divisor is
  18, and for NTSC-M units the divisor is 14.  The Commodore 64 will operate
  regardless of the crystal frequency and state of this jumper.  Therefore,
  to speed up a 64, one can install a PAL-B crystal (17734472Hz) and change
  the jumper to use the NTSC divisor (14) to increase the operating
  speed of the machine to 1266748Hz.  However, note that any operations (disk,
  rs-232, special VIC tricks) that require synchronized timing may fail in
  this "non-stock" scenario.