david winter
Member
Hi,
I need to repair the CPU board which is revision 12. It has a few changes, one of which is the addition of a LM393 to the circuit enabling the electromagnet (driven by the BD679).
All the schematics I found so far correspond to the previous version without the LM393. Another unit in my possession has a CPU board revision 11 which seems to match the schematic in the service manual, yet none of the SM I found contain updates / differences between the various revisions.
Hence the question: anyone has the service manual or at least the schematic corresponding to the CPU board revision 12 ?
Click here to see a quick photo showing both CPU boards, revision 11 (green) and 12 (yellow).
The added parts are circled in yellow. Those circled in blue were just moved.
Thanks.
I need to repair the CPU board which is revision 12. It has a few changes, one of which is the addition of a LM393 to the circuit enabling the electromagnet (driven by the BD679).
All the schematics I found so far correspond to the previous version without the LM393. Another unit in my possession has a CPU board revision 11 which seems to match the schematic in the service manual, yet none of the SM I found contain updates / differences between the various revisions.
Hence the question: anyone has the service manual or at least the schematic corresponding to the CPU board revision 12 ?
Click here to see a quick photo showing both CPU boards, revision 11 (green) and 12 (yellow).
The added parts are circled in yellow. Those circled in blue were just moved.
Thanks.