again me , i started new post , about my CPU system 11 C

so here the probleme on VIDEO :

i verified all the trace for the PIAS and some important component

after this i changed :

pias : U41, 42 51 54 38 u10
Ram : U25
Transitor : Q50 , 36 , 37 , 38 , 39 , 40 , 41 , 35 , 34
Condo : C30, 24 , 26 , 29 , 31 , 32
CI : U49 , 31 , 32 , 33 , 34 , 13 , 11 , 43 , 29 , 35 , 36
diode : D1 , D 2 , ZR1 , ZR2
Game : U26 U 27
Resstor : r65 r 59 , R55 and R57

still same !!!

but i know how to start my CPU , forcing the 5 volt on pin 40 From U15 .
but not all the time !

it start after the Second start
1/ first start without forcing the 5 volt
2/ i turn off
3/ i wait 10 second
4/ second start with 5 volt forced and it s ok

it seen to be the 'POR' but i chanched all

here the video my CPU starting

sory for my bad english

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