flaviosr
Experienced Member
Dear All,
again I have to ask for help.
I have bought a Sinclair Spectrum 128 and I am trying to resurrect him.
What I have found up to now:
° the CPU was dead;
° the EPROM (I have the Spanish one) was dead;
° one low RAM chip was dead.
After this replacing I have been able to arrive to the attached picture!!!
I replaced UC17 and NOTHING changed (meaning that still the diagnostic are telling me to replace ALL chips) => I have decided to replace also IC15 and IC16 and still NOTHING changes from the diagnostic.
At this point I have to surrender... I do not understand why (I am sure the "new" chips are good).
Any ideas?
Another point: at the moment I have written the diagnostic on a EPROM but I cannot find a BIN for the Spectrum 128 (I would like to have the Spanish one but also the original one): any link?
Thank you
again I have to ask for help.
I have bought a Sinclair Spectrum 128 and I am trying to resurrect him.
What I have found up to now:
° the CPU was dead;
° the EPROM (I have the Spanish one) was dead;
° one low RAM chip was dead.
After this replacing I have been able to arrive to the attached picture!!!
I replaced UC17 and NOTHING changed (meaning that still the diagnostic are telling me to replace ALL chips) => I have decided to replace also IC15 and IC16 and still NOTHING changes from the diagnostic.
At this point I have to surrender... I do not understand why (I am sure the "new" chips are good).
Any ideas?
Another point: at the moment I have written the diagnostic on a EPROM but I cannot find a BIN for the Spectrum 128 (I would like to have the Spanish one but also the original one): any link?
Thank you