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I need a user manual for an ft 840 help! r.esposito68@gmaail.com thank you

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Http://panoptic.com/rking/ham/FT840-Service_Manual.pdf

Posted on Jun 16, 2011

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Posted on Jan 02, 2017

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1 Answer

Flashing display ft 840


Radio needs service, flashing display means the PLL is out of lock

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Transceiver signal interference


The FT-840 uses a die-cast RF power amp with thermally switched fan to ensure full power output (up to 100 watts). The digitally synthesized local signals ensure clean, low-noise transmitter output on all HF amateur band. There might be no AC line interference. it has strong Rf output. any AC line intersect does not affect its radio performance. Check and adjust RF power so to maintain proper output. some times more RF power generated at the output may cause interference. adjust Rf power..Even some unfiltered Noise getting the other end of the end may calso cause interference. Check for any Ripple voltages present at the output. Contact authorised service station for further Rectification. thank you shanth

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Yaesu ft 840


Check on www.mods.dk. They have lots of manuals

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Need instruction manual. It was given to me with no insructions. Help! My computer has allowed me to download music from computer to MP3 but I need manual to know how to make things work...



  • If you have any comments please feel free to leave them here.
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Regards, Tony

Sep 01, 2011 | Transcend T-Sonic 840 MP3 Player

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I need help programing the VCr to record now that his receiver has been added.. is there a how to manual somewhere? thank you


Hi
here it is..pls visit the URL below for downloading your manual..
Hope this helps! Take care and please Remember to rate/vote
and give me 4 Thumbs Up for me to continue for Helping out the Community :)
Thanks

-----------------------------------------------------------
Motorola DCT700 All-digital Set-TOP manual download File size: 840 KB
Document type: User guide, user manual
http://www.chung-sim.com/motorola.dct700.all-digital.set-top.html

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Where can I buy a franklin bps 840 portuguese translator?


Hi,

You could buy it from :-

http://www.amazon.com/dp/B00006IFTL/ref=asc_df_B00006IFTL1585987?smid=A1WQSUFM2GVFFG&tag=dealtmp15371-20&linkCode=asn&creative=395129&creativeASIN=B00006IFTL

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

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Hi i have a yaesu ft 840 the display go's blank and then it flashes till a turn it off how can i fix this thankyou


1: Remove regulator board (has the two 78xx IC's mounted on it).
This board is mounted to the mid-chassis, heat-sunk with a gray rubber gasket behind it. It's connected to the main board via pin&pinch pad, in the back by the audio IC.
2: Check the IC's, replace if faulty.
3: re-stress the pins and look for cold or broken solder joints.
4: Re-install and check. You should have your display back and it will probably go to 7.000MHz (default out of the box).
For fills, contact ware103@comcast.net

Oct 30, 2010 | Audio Players & Recorders

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User manual for Ricoh FT 4427


I WILL GIVE YOU A MANUAL RICOH FT 4427 BUT YOU NEED TO PAY 100 US DOLLAR. EMAIL panlaqui08@yahoo.com.ph

Mar 20, 2008 | Office Equipment & Supplies

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AC line interference


I experienced very similar or the same problem with FT-840. When power is inceased over about 50 W, an AM on RF signal arises. Even when TCVR is supplied from accu and connected to dummy load. Period of interferencing signal is about 7.5 ms (130 Hz), so it cannot be hum from mains. I have not opened the PA block yet but i guess, it could be caused by damaged capacitor(s). Jiri

Dec 23, 2007 | Computers & Internet

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