Re: laser 128

[rcolbert@oasis.novia.net (Bob Colbert)]

Modern1 (agault@infoave.net) wrote:
: need help building a power supply for a laser 128.
: all i need is the pinout and voltage info...

Hi,
	I bought one this weekend with no power supply.  The book I have
says that it takes 15 volts at 1.8 amps.  I rigged up a 12 volt 1 amp
powersupply with no problems.  I don't remember the pinouts exactly, but
you can determine them easily with a continuity tester, there are really
only 2 sets of pins --> +15 volt and ground.  The connector on the Laser
128 is a 7 pin din connector I believe, but you can use a 5 because only 5
pins are used.  This is hard to convey via text, but 3 pins are connected
together (either 2+3+4 or 4+5+6) which go to one side of the power supply,
and 2 pins are connected together that go to the other side of the power
supply (5+6 or 2+3 respectively).  At any rate, find how the 5 pins are
grouped, which group is ground (test continuity with the shield on any
port like the joystick port) and hook it up.  I know this is sketchy
information, but I don't have the book handy.  If you can't figure it out,
e-mail me.  Don't worry too much about the voltage not being correct,
worry more about having a power supply with 1 to 1.8 amps, the Laser
regulates the voltage anyway internally.  You should not use a PS with
less than 12 volts though...


          1       7
            o   o           (the numbering here is arbitrary and not
        2 o       o 6        necessarily the official numbering, but used
         3 o     o 5         as a point of reference for the text)
              o 
              4

				Later,
					Bob
-- 
Collector of Atari 2600 games - Want to write a game for the 2600?
Check out http://www.novia.net/~rcolbert