Posted by Patrik Lantz on 8, 2000 at 10:40 AM:
In Reply to: It works great, but not with problems with the PC's motherboard posted by Nick Bourdo on 8, 2000 at 5:38 AM:
When I tried the printer switch on my TYAN DUAL m/b
I had no problems, but with my new Microstar 6163PRO m/b
I have some minor problems, 2-4 seconds before
my m/b sets the printer port...
Maybe there is an simple setting in Bios EPP/SPP/Bi_DIR ????
Or maybe I can modify the printerswitch so there
is a delay or something...
/Patrik
: Brains Printer Hardware circuit works great, but I have a Asus p2-99 motherboard that was switching on the monitor on bootup. To over come this I had to install a second LPT port to stop the monitor switching on for 5 seconds at bootup.
: Works good now I haven't checked if I have the incorrect wire on pin 11 but it still works if it was the incorrect pin (thanks Patrik for that one)
: This is a picture of my circuit board, top picture on the right hand side, the one with the LEDs in it
: http://www.geocities.com/nicbourdo/interfac.htm
: If your using VBE in Advance MAME Andrea has written a small program to switch this circuit on. Should be in the next release.
: Nick Bourdo
:
: : PC2JAMMA project - PRINTER HARDWARE - RELAY VERSION
: : Hi John, ( and everyone else also…. )
: : To build the printer hardware just order the IC's listed on the PC 2 JAMMA project page, and I choosed the CMOS ICversion. I think they are called 74 HC XX instead…
: :
: : And for the transistor, the one that Brian have listed has been replaced by another transitor ( they work the same way )
: :
: : NOTE: ( in the PC2JAMMA HTML text there is an minor error ?… )
: : 'Strobe' (pin 1)
: : 'Data bit 7' (pin 9)
: : 'Acknowledge' (pin 12)
: : 'Busy' (pin 11) (Should be PIN 10)
: : 'Ground' (pin 25)
: : When I checked the pin config in my manual I saw that the 'Acknowledge' should be PIN 10 and if you look close on the picture, you can see that brian have pin 10 there.
: :
: : And for the relay, I chosed a 120-250V, 5 AMP realy, you can more or less chose what ever you want.
: : But I think a 120v-250V, 5-10AMP, 12V should do it…
: :
: : And when you have built everything, test it with the software that Brian has on his page " MONTEST "
: : " DO NOT CONNECT THE 120/240V when you test it , JUST IN CASE "
: : TAKE YOUR TIME AND YOU WILL MANAGE TO BUILD IT.
: :
: : Soon as I get my hands on a digitalcamera I will take some photos….
: :
: : /Patrik lantz