06-22-2013, 06:55 AM
Yup, what Arran said. Check to see if the local oscillator is working. I'll bet that it may be dropping out or on the verge of oscillation. That's what I usually find in cases like you describe.
Hit the coils and any other phenolic stuff in the RF/Osc circuits with some quick drying cleaner and a heat gun.
Hit the coils and any other phenolic stuff in the RF/Osc circuits with some quick drying cleaner and a heat gun.