need confirmation for a1200 pal/ntsc

[kipper2k]

Originally Posted by TheCorfiot

Aye Fingers, It's the exact same chip
I would follow rkauers suggestion though if the CD32 has the same Zero Ohm resistor.

TC

Hmm, how will this affect the output to TV, i'm assuming that you would need a TV capable of diplaying both modes ?


edit:... I'll be the guinea pig and try it on my NTSC CD32. I'll post the results later tonight

[TheCorfiot]

Originally Posted by kipper2k

Hmm, how will this affect the output to TV, i'm assuming that you would need a TV capable of diplaying both modes ?


edit:... I'll be the guinea pig and try it on my NTSC CD32. I'll post the results later tonight

@k2k

It will affect the CD32's output in the same manner that an A1200's output is affected regarding RF & composite (& CD32 S-Video).

although the frame frequency will be 50Hz in PAL mode. The Colour encoder in side the CD32 & A1200 will now output 50Hz but with NTSC colour information.

A1200 RGB Video port of course does not have any colour encoding applied to it as it is the pure R-G-B output signals.

Most PAL TV's from Europe & Australia are more than happy to run in NTSC colour mode as well as 60 Hz Frame rate. However US & Japanese domestic models tend to ignore PAL & 50Hz by & large..

TC

edit - you know when your TV is in NTSC colour mode (irrespective of frame) because apart from the generally poor colour balance you also get a "Tint" adjustment that PAL does not have or require.

[kipper2k]

I was looking at my CD32 at lunch and noticed that something just didnt look right... Pin 41 and 42 when measured to each other is zero ohms. i checked the A1200 that i lifted pin 41 on and... i have lifted pin 42 instead!!. Pin 42 is identified as Gnd2 and pin41 must be internally connected to it because it does work in pal mode now even though pin 41 is still connected to the pad (check my image and count the pins

here is a pic of Alice's pinout that i found somewhere while trolling the net..

i am now assuming that because i lifted Gnd2 then that also effectively removes pin 41 from ground. It doesnt appear to be affecting anything else but i'll keep an eye on it...

OK, you can say it... Dumb cluck!!

[TheCorfiot]

@Kipper2k

I just had a look at your piccy posted above & counted 9 pins in (left to right), according to your piccy you did unsolder the NTSC pin


Best Regards
TC

[kipper2k]

Originally Posted by Fingerlickin_B

So would lifting Alice's pin 41 on an NTSC CD32 make it PAL just like A1200?

I never really got an answer in other threads about that...

PZ.

I lifted pin 41 on my NTSC CD32 and it indeed boots up in PAL mode. If i do the early startup by pressing both mouse buttons the default mode is PAL. As mentioned the colour display is messed up, if i feed it through my multi region projector it works fine

[rkauer]

Originally Posted by kipper2k

Hi,

just to verify that the NTSC version i modded does not connect to any of the nearby zero ohm resistors, i metered the pad of pin 41 to those 3 zero ohm resisters close to the pad and they were not giving a reading on ohms so i dont believe they are directly connected to the pad.

Did you locate the R203? On 1D1 boards it is located on the underside of the motherboard. Dunno on different revisions, since I don't have them.

[Fingerlickin_B]

Just to help keep this post on-topic & since it's now being discussed in the CD32 NTSC/PAL thread:

http://eab.abime.net/showthread.php?...ewpost&t=39646

PZ.