Hi, checked what have already been discussed here with no luck so I ask you my friends for advices....
My 130 XE always boots on Memory test. the 2 ROMS are OK, but RAM is all red except 4. Unsoldered the 8 chips, put supports then tried with differents chips according to what I read here in past topics.
Tried with KM 4164-B-10, TMM 41256AP-12, TMS4164-20NL chips but no luck (same results on tests).
Diodes are all ok (5v).
Tried to swap 1st 64 bank with 2nd 64 bank by crossing resistors R110 and R111 but black screen.
Anyone can help on this ? Are my replacement chips are the good ones ?
I checked the MT4264 voltage, and notice that I have 5v on some pins and 3.6 on some other. Even 1 pin (pin 3 or 4 that have 1.9 and this one has a dropping voltage during the Ram test). Anyone have the correct voltage for each memory pin ?
Thanks for your advices.
Phil