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I think the VCO block may be gone - what is the best way to check for a fautly VCO ?

Radio Make and Model: HMV RoadHound TX77 PCB Number: PTBM048AOX PLL Number: PLL020A Test gear available: DMM, Frequency Counter. Symptoms: No RX or TX What is working: Everythink looks in place on PCB What has been tried: The PLL will not lock - PIN 6 is approx. 1.2 volts and not 5 volts. I have rep...