Yamaha EL70, no sound

I have an EL70 which has no sound but organ lights appears OK,  On the main PU board, the fuse resistor R101 had blown and the R109 resistor was running hot.
All voltages appear OK but the circutry around the Relays is different from the EL90 circuit diagram I have, so it is difficult to troubleshoot without the proper EL70
diagram.  Any help would be appreciated.

Stuart