开云体育

Good work James. Did you see anything on the display like a reaction on the S meter. Won't be surprised if not as some of the clocking inputs to the codec chip come from the clocking I/O pins of the

Just out of interest i would like to compare settings just in case mine are too far out. If anyone can compare with their settings that would be much appreciated

Hi All Confirmed the audio circuit from IC551 to speaker is ok by injecting 1khz tone at various points after IC551. Now waiting for the replacement ic551 to arrive. will keep you updated

This just posted on *IC-7000 no rx and no sound out from speaker* topic. "I think this Topic has got crossed over somehow *[IC-7000] Re: Front panel troubleshooting* which happened around Nov 4.

I think this Topic has got crossed over somehow to *[IC-7000] Re: Front panel troubleshooting* which happened around Nov 4. There are a number of replies that have not appeared here but on the Front

Hi Geoff Good idea. At least it will verify output circuits. Will let you know how it goes . James

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

Geoff Ditto: educational not annoying Kurt KD6LZV

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

Geoff, These posts on troubleshooting are interesting, not annoying. They're good reading. Bob W4JFA [email protected]> wrote:

I recently bought an IC-7000.? During my very first QSO (on QRP 70cm CW) my QSO partner (Chris GU3TUX) noticed frequency jumps at the start of each of my transmissions.? He kindly informed me, and I

Hi Geoff Nothing out of IC551 pins 25 and 26 which feed IC601 , ic601 is underneath so very hard to get to but checked on ic551 pins 25 and 26 and nothing at all with a good clean signal on pin 4. i

James, The datasheet for IC551 is on the internet and maybe worth a look. You say you have the analogue signal at IC551 is it pin 4. Can you see anything at R611, R615, or the filter device IC601

Thanks PaulYes that's expensive.Looking for a parts radio nowRegards?James? Yahoo Mail: Search, Organize, Conquer

Logic units have been a relatively high failure item. Icom never even attempted to repair them except for the CI-V components. The latest price list I have from Icom does list the part as being

Hi PaulYes just wanted to reach out to see if you have any experience with the logic board on the 7000My 7000 could have the fault?RegardsJames? Yahoo Mail: Search, Organize, Conquer

Hi Tommy Not sure, the audio in and out of this IC also go through the DSP. The fact that no audio passes through this chip Rx or tx either means a complete failure of ic551 or the DSP has some issue

James Did you conclude IC551 is bad? Tommy KF4RWG [email protected]> wrote:

Is this for me? Thank You Paul W. Hansen, W6XA Amateur Radio Service 2134 Carthage Road Tucker, GA 30084 (864) 222-3539 www.amateurradioservice.com Sent: Sunday, November 3, 2024

looks like the logic board is faulty. looking for a replacement now TBC