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Jon_G4MDC · 16th Jun 2019, 10:02 am

I see I posted a link which has already been given to the service manual - now removed.

It is clear from the schematic that the IF is 21.4MHz not 10.7MHz. It is most likely that the PLL is unlocked.
That is a CX7925B which appears to be from Sony.

Local oscillator runs on high side so 124.375+21.4 = 145.775MHz is where you should look.

16th Jun 2019, 10:02 am	#6
Jon_G4MDC Nonode Join Date: Nov 2015 Location: Welwyn Garden City, Hertfordshire, UK. Posts: 2,015	Re: Signal Communications Corp R535 Receiver I see I posted a link which has already been given to the service manual - now removed. It is clear from the schematic that the IF is 21.4MHz not 10.7MHz. It is most likely that the PLL is unlocked. That is a CX7925B which appears to be from Sony. Local oscillator runs on high side so 124.375+21.4 = 145.775MHz is where you should look. Last edited by Jon_G4MDC; 16th Jun 2019 at 10:17 am.