4053 to 4619

[Zim]

would I be able to change out the 4053 to 4619 chips on my mik3 without any other mods???to unlock rev 106 and so forth.....any info would greatly be appreciated...... thanx in advance

[Oil_Of_Vitriol]

If the unlocker is already modded for 101/102's then yes. You only actually need one 4619 to take the place of two 4053's. Remove both and replace the one with only two out of three pins wired together (4,14,15). I think it is faster with only one chip for capacitance and drive reasons. That and the fact that a single gate in the 4619 has lower resistance (20 ohms) as opposed to 5 cd4053's in parallel (80 ohms agregated). So a single 4619 in the circuit will have two gates paralleled for an agregate resistance of 10 ohms with less capacitance to slow it down. This better by 8 times compared to original circuit. I did try with two 4619's (I have a quantity of the 16 pin dip 4619's) and got nowhere. Removed the extra and the cam I attempted booted in less than 30 minutes with no fine tweaking, just adjusting till no cmd04 errors (at 63 ohms). Those that have unlockers with the 78L05 regulator (the little one, looks like a transistor in the to-92 package) should never tweak the pot below 50 ohms, that drags the power supply down needlessly. The power light will flash when that happens and this makes the cpu on the unlocker unstable as it's source of power is being dragged down. I couldn't get the bad cmd04 response with two 4619's as it gave NoAtr responses before even getting any useful responses.

[Zim]

ok, so I remove both and install one only....as far as the pin 8 on hc00 jumped to pin 9 on hc4053 would it still go there? on the new 4619........and does it matter on what place on the baord the 4619 goes (out of the 2 spots from the removal of 4053)?.....do the 4053's on the mik 3 have the same connections (ie. parrallel)?........................one thing I didn't undertand is about pin 4,14,15 being wired toghether....do I short these 3 pins toghether?.......Thanx for your help so far........and yes my 102's pop at @ 65-70 ohms never really checked though

[Pyotr]

I think we need to see pictures or schematics of the 4619 mod done on various loaders.Especially the Mik and T911.Anyone got any?