Re: [IC-7000] Re: Front panel troubleshooting
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James can you capacitively feed an audio signal, no greater than say 3Vpp, onto the pins 25/26 and see if you can hear/see any reaction. Monitor the signal at these pins with a CRO to see if its loaded down at all.
Also, pay some close attention to all the ribbon cables that run from the Logic board to the Main board. Look for proper seating and damaged tracks on these cables. Its quite possible someone before you has had a go at this radio.
Geoff
Bob, I hear you. :-)
On Wed, Nov 6, 2024 at 7:39?AM James Tiberius via <nono2212000= [email protected]> wrote: Hi all
I checked ic551 pins 10 - 14 and only pin 10 has the 24mhz clock, 11-14 are 0v no activity at all- even from a power off to on state.
I ordered a replacement IC from China - will take a week or so to arrive.
I will replace the chip and let you know how it goes
?
James
VK2VJZ
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