It is currently Sat Oct 21, 2017 9:58 pm

All times are UTC - 7 hours





Post new topic Reply to topic  [ 33 posts ]  Go to page Previous  1, 2, 3
Author Message
PostPosted: Mon Dec 22, 2014 1:12 pm 
Offline
User avatar

Joined: Sat Feb 12, 2005 9:43 pm
Posts: 10066
Location: Rio de Janeiro - Brazil
Sik wrote:
I'm not sure if they were using PAL-M though (Brazil is next to a PAL-N territory after all, many TVs were NTSC + PAL-N + PAL-M compatible, and they also sold consoles in Argentina which is a PAL-N territory).

All video game consoles officially released here output PAL-M (even if that means stuffing a transcoding board inside an otherwise NTSC console, as was the case of the Atari 2600 and the NES), that's for sure. PAL-N wasn't common around here at all... AFAIK, TVs only started supporting all 3 standards in the late 90's.

I must admit I don't know what the deal is with SEGA consoles exactly, since they don't have a transcoding board like some other consoles do, but since the VDP outputs signals that are converted into composite by another chip, there's probably something going on with that chip.


Top
 Profile  
 
PostPosted: Mon Dec 22, 2014 8:04 pm 
Offline

Joined: Thu Aug 12, 2010 3:43 am
Posts: 1589
Alright, or maybe it was actually being converted by the RF unit (which is separate). Although that leaves composite - but then again, if the TVs supported NTSC it was probably easier to just output NTSC then. I know that in Argentina TVs became able to support both NTSC and PAL-N because VHS players were imported from the US and thereby NTSC, but the local TV signal was PAL-N, and having TVs support both was the easiest solution to that (eventually later that expanded to supporting PAL-M as well, since that allowed exporting the TVs to Brazil).

Pretty much every Mega Drive I've seen here was NTSC or PAL-N though (or toggled between those when they had a region switch), but if there was a RF unit it'd be always PAL-N (in practice everybody used composite instead). We also got the model 3 which is NTSC-only so it's safe to assume that by that point going NTSC-only was safe in Argentina.


Top
 Profile  
 
PostPosted: Mon Dec 22, 2014 8:06 pm 
Offline
User avatar

Joined: Wed Feb 13, 2008 9:10 am
Posts: 578
Location: Estonia, Rapla city (50 and 60Hz compatible :P)
SMS2 VDP is not exclusively used in EU machines, whole variety is represented.

The whole PAL-M, N etc is irrelevant, the only difference is framerate and color subcarrier. Framerate is selectable between 50/60 on all VDP versions and color subcarrier is dependant on the crystal used with the RGB encoder circuit outside the VDP.

_________________
http://www.tmeeco.eu


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 33 posts ]  Go to page Previous  1, 2, 3

All times are UTC - 7 hours


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group