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Hello ,
Have you encountered this problem? my ft 817 worked very well for 2 years in digital mode, now it flashes on all bands if I increase the voltage towards 14 volts it stabilizes on a few bands.
thanks for your help
7s de OD5SB
Ramy FINGE

Flashes?? Does it indicate anything on the display?? HSWR, or something else?? Do you have a battery installed?
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Al Skierkiewicz
WB9UVJ

thanks for you reply
i have everything on display but the bands flashing dont work? only when i put voltage up to 14 volts some bands about 4 only become stable?

the battery not installed

It sounds like you need to look at the radios reference frequency/tcxo if it has it fitted,
Or the std module,
Dave 2E0DMB

Rami,
I still don't understand "bands flashing".?? Are you saying that the display for frequency flashes?? That occurs when you are trying to transmit on a frequency the radio is not programmed to transmit.? However it flashes "TX Error".? Can you enter the display menu 11?? Press the F key once and rotate the select knob (lower left) until the display shows CHG VLT DSP.? Press the B button underneath the display until the voltage appears in the upper left of the display.? What does your radio show?
--
Al Skierkiewicz
WB9UVJ

Dear Al
transmiting only on amateur radio frequencies, yes the display flashes, on 11 in the menu i have batt=volt, and pressing F after rotate i can see on the left the voltage 13.1 volts the mode on the right , down chg>volt> DSP, and all the screen flashes and when i transmit it give me tx error, and this is the same in all bands
thanks?
73 Ramy?
OD5SB

Seems to me the radio is trying to TX out of band with the TX error flashing on the screen

Mick SA4MDN

I have already said you need to test the radios?
Ref frequency
Dave 2E0DMB

Hi,
I did a quick check of the group and found this:
/g/ft817/topic/44934259
Same symptom, but some interesting responses so take some with a grain of salt.
It sounds like a PLL unlock issue (though for this issue the unit should respond with an UNLOCK error message); that would require alignment (and sufficient test equipment - see the technical supplement).
Since this is occurring on TX only I would look for current starving of the power supply, voltage drop across the power cable, or defective power plug.
It is important that you indicate failure with no battery installed; as I recall my FT-817ND really prefers a battery installed even if the battery does not hold charge.
Lastly you need to do all troubleshooting with a dummy load attached; a 10W dummy can be constructed with common carbon composite resistors in parallel or purchased off eBay for about $20 USD (you might need an adapter/cable to get to PL-259).
Doug. K4DDM.

Rami,
Does the display flash at all times or only when you are transmitting?? Have you tried a factory reboot?? See page 76 of the manual.? If you have programmed memories, make a copy before your restore factory defaults.? I use CHIRP for that.? If you don't have a programming cable then simply write everything down.? If that doesn't help, it seems that you may have either an internal connector that is loose or the power supply for the front panel is failing.? The fact that it appears to be normal when you run the power supply to 14 volts makes me think that the power cable is defective/too small/not a good connection.?? If that was the case during transmit the voltage display would vary be a few volts.
I just thought of something.? Is the backlight flashing or the characters in the display?? If it is the backlight, try changing the color.? Menu item 15 to select blue or amber.? I have heard of problems with the backlight before.? If that is what is happening to you, then search for "backlight" in this forum.
--
Al Skierkiewicz
WB9UVJ

TX ERROR message can occur if you try to transmit out of band.
?
Check to see if you have a repeater shift activated.

73 de Andy