uveprom #1 Posted June 28, 2015 (edited) I have 2 port Atari 5200 When i press power button the led turn ON and next OFF and stay OFF,,, never stay ON, S2 is Ok 4013 is Ok Q6, Q7, Q10 are Ok R61, C47 are Ok VR1 & VR2 are Ok, can read only 1,5 volt in pin 1 VR2 Power Supply Ok If i send pin18 to ground,,, led turn ON but only 3.4Volts in almost the chips, not 5V , NO VIDEO, Somebody knows ? I think a circuit short but i dont know where ? Thanks for anwer, Edited June 28, 2015 by uveprom Quote Share this post Link to post Share on other sites
zylon #2 Posted June 28, 2015 are you getting 9v or higher at first leg of vr2? if you are, then regulator is bad. Quote Share this post Link to post Share on other sites
uveprom #3 Posted June 28, 2015 are you getting 9v or higher at first leg of vr2? if you are, then regulator is bad. No, only 1,5v at first leg of vr2,,, I did test both regulators in other place and they are Ok, Quote Share this post Link to post Share on other sites
uveprom #4 Posted July 4, 2015 Now if i plug the cartridge dont turn On,,, Only turn ON without cartridge,,, but VR1 have 3V Quote Share this post Link to post Share on other sites
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