Re: It works great, but not with problems with the PC's motherboard

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: Yeap I tried everything and I didn't get it to work. I looked at delays and had no luck. I tried timers and everything. The best way I found was the LPT2 card : Nick : : 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 I think they are called 74 HC XX instead… : : : : : : : : And for the transistor, the one that Brian have listed has been replaced by another transitor ( they work the same way ) : : : : : : : : NOTE: ( in the PC2JAMMA HTML text there is an minor error ?… ) : : : : 'Strobe' (pin 1) : : : :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

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