Acording to service manual, divide-by-N circuitry are ok. Found faulty component: U2 in A10, a phase detector (Motorola MC4044P). It has two inputs, divide by N signal which is present and changing period acording to CF in manual mode; and a reference input, fixed 50 kHz pulse, ok too. It's outputs are intermitent, so I think it is the faulty component which prevents A9 to sweep the synthesizers properly
I'll order new IC and try it out
Regards,
搁耻产é苍
RubenRubio
