Ex-8000 problems
2003-08-12 by poly_user2002
Hi all, i need urgently a service manual of the EX-8000. I have problems with the SRAMS located nearly thh NEC-CPU (i believe they are numbered with 74S189). They work, but they all (8 pieces) get after a while rellay hot (they also work but while they are getting hot they affect the resonance). But the voltages and microamperes on their Pins are correct so i believe they are accessed/clocked too fast. In first order i need the voltages of the power supply (brown/yellow cables) and the frequency on the "TP-clock"-Pin. Thanks Stef