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- Pal -> NTSC
-
- This is a simple hack that can be performed by anyone but best left to
- someone with a fair knowledge of electronics. The idea is to stretch
- your software to fill the botton third of the screen when using NTSC
- software, there is nothing worse that buying software only to see it
- doesn't use all of the screen. Many a PC owning friend has asked why
- does it have that black spot at the bottom?
-
- Well I wondered too! but no longer, I had noticed when using my Amiga
- that it sometimes boots up in NTSC, you know when the screen won't
- display anything past 200 lines. When if it can boot when it wants to,
- why can't it boot when I want to!
-
- The first thing you require in order for this mod to work is a Fat Angus
- No 8372A, you can check this out with a program called Sysinfo. (There is
- a version on CU Amiga Disk 46 Dec 92). You also need one SPDT switch and
- two 500mm hook up wire. To make job secure a low wattage soldering iron.
-
- Right, from here on in your own your own, anything you do you take full
- responabilty for, if you are unsure, STOP! and let your techie do the job.
-
- REV 6 Boards
- ------------
- Opening up your Amiga 500 and exposing the motherboard you reveal the
- ECS Angus Chip near the main CPU 68000, looking closer you can see a
- jumper pads marked on the board JP4, this is between the two chips. This
- jumper should be in fact open as is the case with PAL Amiga's, now the
- idea is to connect a switch between the jumper therefore connecting it
- in one mode and disconnecting in the other. What in fact this does is
- take to earth off Pin 41 of the Angus Chip and make it boot Pal. Solder
- a wire to each pad and connect it to the switch that can be mounted on
- the outside of your machine.
-
- REV 5 Boards Only works if a Angus 8372A installed
- ------------
- Opening your case you will find you do not have a jumper marked JP4, so
- your mod is a little more difficult, what you must do is bend pin 41 of
- the Angus chip out and carefully solder one wire to the pin, the other
- wire is then grounded. Install the switch as per REV 6 boards and you
- have NTSC mode as well.
-
- The switch can be thrown at any time, even if the machine is running but
- the effect will not take place until a warm boot, now you should find
- that your NTSC software will fill the screen, it does on my monitor
- anyway. Of course this mod can be performed on Amiga 2000's as well.
-
- Of course there is always the easy way of using a simple program called
- 60Mhz or Action Replay Mk III has a Pal/NTSC mod. I find this way more
- reliable........
-
- Happy Hacking!
-