UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Jon_G4MDC · 15th Aug 2019, 9:19 am

I will work on that Chris and thanks for the effort to measure.

At first sight it looks OK but I will check through with a little more time.

The stuck at 2V Pin is RF In so not surprising it does not move - it will be 4MHz pulses looking like ~1/2 supply. Pin 17 RF Out you might expect likewise but you saw 0V. Could be very narrow pulses perhaps.

More later.

15th Aug 2019, 9:19 am	#23
Jon_G4MDC Nonode Join Date: Nov 2015 Location: Welwyn Garden City, Hertfordshire, UK. Posts: 2,015	Re: Yaesu FT480R I will work on that Chris and thanks for the effort to measure. At first sight it looks OK but I will check through with a little more time. The stuck at 2V Pin is RF In so not surprising it does not move - it will be 4MHz pulses looking like ~1/2 supply. Pin 17 RF Out you might expect likewise but you saw 0V. Could be very narrow pulses perhaps. More later.