?

Well now that the UHF transmit problem was resolved (thank you again to everyone), my next issue is the FAST function does not work from the microphone or by shorting the appropriate pins on the mic jack.

When I press the FAST button on the front panel the icon shows up and tuning increases as expected, so it is working from the panel. I'd like to resolve this as I need to align the SHIFT control and I can't get in to the adjustment menu without the FAST button working on the mic.

Max

Max,

?

I had a problem with my FT-847 in the same way. It was the microphone – an older model 8-pin model with the UP, DOWN, and FAST buttons – but the FAST did not work. When I used the MH-31B8 Microphone (that was supplied originally with the radio), all worked fine. Some earlier model Yaesu microphones work fine for audio and PTT activation, and even UP and DOWN – but they may have some problems in things like that FAST control.

?

73, Bill, W9MXQ

?

From: [email protected] <[email protected]> On Behalf Of Max Donoghue
Sent: Tuesday, August 09, 2022 2:59 PM
To: [email protected]
Subject: [YaesuFT847] FAST button not working through mic jack

?

Well now that the UHF transmit problem was resolved (thank you again to everyone), my next issue is the FAST function does not work from the microphone or by shorting the appropriate pins on the mic jack.

When I press the FAST button on the front panel the icon shows up and tuning increases as expected, so it is working from the panel. I'd like to resolve this as I need to align the SHIFT control and I can't get in to the adjustment menu without the FAST button working on the mic.

Max

?

From: [email protected] [mailto:[email protected]] On Behalf Of Max Donoghue
Sent: 09 August 2022 20:59
To: [email protected]
Subject: [YaesuFT847] FAST button not working through mic jack

?

Well now that the UHF transmit problem was resolved (thank you again to everyone), my next issue is the FAST function does not work from the microphone or by shorting the appropriate pins on the mic jack.

When I press the FAST button on the front panel the icon shows up and tuning increases as expected, so it is working from the panel. I'd like to resolve this as I need to align the SHIFT control and I can't get in to the adjustment menu without the FAST button working on the mic.

Max

?

Max,

?

I had a problem with my FT-847 in the same way. It was the microphone – an older model 8-pin model with the UP, DOWN, and FAST buttons – but the FAST did not work. When I used the MH-31B8 Microphone (that was supplied originally with the radio), all worked fine. Some earlier model Yaesu microphones work fine for audio and PTT activation, and even UP and DOWN – but they may have some problems in things like that FAST control.

?

73, Bill, W9MXQ

?

?

Well now that the UHF transmit problem was resolved (thank you again to everyone), my next issue is the FAST function does not work from the microphone or by shorting the appropriate pins on the mic jack.

When I press the FAST button on the front panel the icon shows up and tuning increases as expected, so it is working from the panel. I'd like to resolve this as I need to align the SHIFT control and I can't get in to the adjustment menu without the FAST button working on the mic.

Max

?

Thanks Bill,

I'll have to trace the lines from the mic jack to the front panel board and try and sort out which is which.

Max

Max,

?

I first ran into this difference years ago when trying to use my MD-1 Desk Microphone with a newly acquired (at the time) FT-920 Transceiver. If you look at the schematic of, for instance, the MD-1 compared to the MD-100 you can see the difference. BUT, note also that there was a later version of the MD-1 that had the updated wiring. Seems, if I recall correctly, that there was an MD-1b8 that I had but that the later version, MD-1c8, had that wiring updated. I have since updated both MD-1’s that I have here to “c8 status.” If you cannot find the details, let me know and I can do some digging here to help you.

?

73, Bill, W9MXQ

?

From: [email protected] <[email protected]> On Behalf Of Max Donoghue
Sent: Wednesday, August 10, 2022 2:32 PM
To: [email protected]
Subject: Re: [YaesuFT847] FAST button not working through mic jack

?

Thanks Bill,

I'll have to trace the lines from the mic jack to the front panel board and try and sort out which is which.

Max

I have the MH-1b8 mike on my 847, and the Fast button works as expected.?

Greg? KO6TH

William Shadid wrote:

Max,

?

I first ran into this difference years ago when trying to use my MD-1 Desk Microphone with a newly acquired (at the time) FT-920 Transceiver. If you look at the schematic of, for instance, the MD-1 compared to the MD-100 you can see the difference. BUT, note also that there was a later version of the MD-1 that had the updated wiring. Seems, if I recall correctly, that there was an MD-1b8 that I had but that the later version, MD-1c8, had that wiring updated. I have since updated both MD-1's that I have here to "c8 status." If you cannot find the details, let me know and I can do some digging here to help you.

?

73, Bill, W9MXQ

?

From: [email protected] <[email protected]> On Behalf Of Max Donoghue
Sent: Wednesday, August 10, 2022 2:32 PM
To: [email protected]
Subject: Re: [YaesuFT847] FAST button not working through mic jack

?

Thanks Bill,

I'll have to trace the lines from the mic jack to the front panel board and try and sort out which is which.

Max