Kenwood ts 940 forum Jun 14, 2020 · At the moment my TS-940 works very well. I opted for Item 3 - twice. The transmission line should be coaxial cable. I used a Rig Blaster with another old Kenwood and it worked fine. I left it on for more than an hour - no issues. Started after updating LED on sub panel w/ new battery and LED on Meter. I use my TS-950SDX on 11 meters. Mar 9, 2007 · Kenwood TS-940 LP-PAN for 8. Voila! Done. Jun 14, 2020 · The failure of the power supply in Kenwood TS-930 and TS-940 radios is guaranteed, and when it does, it will definitely cause the failure of the Power Amplifier (PA). Menu Kenwood TS-940S. The radio before only was doing 50 watts now Apr 5, 2019 · $676. Accessories. The TS-430S was a step up from the 130/140. Mi spiego meglio. I installed AM mod, and moved ALC loop to 225 watts. The TS-940S should require 14A @ 28 volts key down if aligned properly which should produce 110 watts. Dave left this chip mod in. Aug 21, 2006 · The TS-940 has a history of problems after the radio has been "unused" for long periods of time. VFO-B , the number, and the analog scale. (The TS-940S can be pushed to over 150W but the final stages won't last long if you do!) So this particular supply is perfect for this application. Dec 11, 2009 · The WorldwideDX Radio Forum was originally established in 2001. On AM, it deadkeys about 20 watts and modulates forward to about 200 wattspure loud Kenwood audio. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. 97 Add to cart; Archives. I’ve been using it for about a week (receive only. My average price for one of these boards (complete with filters) is $70. Recently Sold Used Previous Models: TS-930S: After a power supply problem was fixed now When keyed the first 2 relays in the filter board just chatter on all bands and modes no power output on watt meter and chatter can be heard through speaker. Home Page Edirol FA-66 firewire soundcard PIEXX RS232 controller for the TS-940 2 balanced audio lines from stereo mini to XLR Heil foot switchusing secondary line to 'mute' on the LP-PAN for TX mute It goes like this IF output RCA plug on the TS-940 into a BNC plug for IF input on the Feb 16, 2017 · It is the filter board after checking depending on band that's the relay that chatters. This is a great radio with receiver specs comparing well with the top 5 receivers made today. 00 (0 Bids) End Date: Friday Apr-5-2019 23:59:16 PDT Bid now | Add to watch list Continue reading Feb 23, 2025 · これまた何を血迷ったか、またまたトリオ・ケンウッドの旧リグを落札。TS-940Sは1985年頃発売された当時のフラグシップ機です。1985年といえば自分大学4年生・・・40年前じゃないですか！ ヤフオクで落札し8エリアから2日でお輿入れです。20kgもあるデカくて重い精密機械をたった2000円弱で運ん Dec 11, 2009 · $450. Business, Economics, and Finance. They bring back a lot of memories. Usually the problem is simply a connector inside that is not making good contact or has some corrosion. Please check our Used List. Yes, the power supply was warm in that back left corner of the rig, the internal fan was on (I will be putting a full time muffin fan back there), but the rig ran fine, no display problems, no freezing up. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. They work great. The whole matter was difficult to understand because Kenwood re labelled to the boards which made it appear the FETS were incorrectly installed. I have a TS-940SAT for around 10 years, never had a problem with them, I had also a TS-850S with all the optional filters, but the 940 beats the receiver quality of the TS-850S. If the message is relate to an article, the article can be selected next to each message. Aug 15, 2018 · Ah,dimenticavo, in passato ho gia avuto modo di riparare un Kenwood ts 940 s che un amico mi regalo perche un "tecnico" gli aveva detto che non era riparabile. If not, the modification for it (and some other good info) can be found here: KB2LJJ Radio Mods Database and Manuals Long story short, it seems you need to cut/remove D130 on the digital unit, which is behind the face of the rig. Passband width 6 kHz (-6 dB). If you decide to buy it, good luck! I absolutely love Kenwood radios from this era. Toggle sidebar Toggle sidebar. I'm using Log4OM with OmniRig and have had no problems. The TS-940S was Kenwood's top of the line contest/DX radio. 15-30 MHz Tuning steps: Down to 10 Hz: Frequency I am still using the far smaller and simpler to use TS-50 that had originally listed for 1/2 the price of the 940 and get consistent praise for its audio. Studying for license) and I haven’t had any problems. You can use it in the shack or take it out camping. On the 940, there's time out built into the function if you do not activate the tuner in a certain timeframe. Look at forum posts for potential issues the radio has. Jan 1, 2021 · Home of the AM Press/Exchange, The AM Forum (the largest BBS of it's kind),and The AM Classifieds, Photos, Audio, and technical information. 5 mm audio jack has not been made available yet. Mar 2, 2020 · I could get a TS-950SDX but I always liked TS-940SAT since I first saw the radio back in 1989. Fast forward to 2006 - a friend was cleaning out her late hubby's shack and I got a '940 with speaker for a decent price. Community Forum; Contact Form; Kenwood TS-940. An antenna sys- tem which shows a standing wave ratio of less than 1. March 2025; September 2024; Kenwood TS-940S 160-10 meters 120 VAC. The pair of rugged motorola mrf-422 transistors give the radio full output on all bands, TheTs-940s also has the antenna tuner installed and working, All lights Aug 21, 2006 · kenwood ts-940s serie708xxxx pll 50-2020-00 board ic19>pin2=4. If you want to do digital stuff you will need a sound card. Thanks, smokercraft Dec 11, 2009 · The WorldwideDX Radio Forum was originally established in 2001. The user is instructed to install a 1Kohm resistor in series with the Meter Lamp lead when the unit is installed in a TS-930. After doing the regular checks for signals and voltages on the PLL's I decided to start looking for other issues that can cause this problem. If you are the proud owner of a Kenwood TS-940 you have one of the best performing desktop Amateur Radio 3 days ago · il TS-940S contiene) il ricetrasmettitore Kenwood TS-440S. Syracuse, New York, 10-31-2004. You'll need to turn off the Send once the radio is tuned. Read the TS-940 page to see the detailed explanation. 82v ic8>pin2=1. Manufactured in 1986 this transceiver was the top of the line Kenwood radio until it was usurped by the TS950DX. I now have a radio that costs $50 round trip to ship if it ever needs maintenance vs $150 for the heavy Kenwood TS-940S that can never be made "right. At the time the TS-940 page was written there was not a great deal of information. Is there some preventive measures you would recommend, or should I just follow the "if it ain't broken, don't fix it" philosophy? This forum message list include all message for that is related to TS-940, this include message that also is related to articles. Attenuation bandwidth 11 kHz (-60 dB). just need it gone threw, seems to have low power and it has fan problems. Jan 10, 2019 · Welcome to the TS-940S group! Here we discuss practicalities, frustrations, and joy of putting these transceivers and similar models TS-930S, TS-930SAT, and TS-940SAT back on the air, using them, optimizing their performance, and modifying them. This is a well designed, well implemented, professional quality HF radio- which is now 17 years old and still going strong! My hat's off to Kenwood for making such great products- my backup TS-450SAT is another great radio! But the TS-940 is the centerpiece of my shack, and will be so for the foreseeable future. Optional filter type YK-88C-1, for CW. by Wyn Purwinto, AB2QV. I was first to write those TS940 faults up and the users of the TS-940 have benefited from that. The W3AFC WEB site is the master resource for information on the TS-930/TS-940 PA and has excellent guides with examples of how to perform modifications and troubleshooting. Desolder the filter and swap with the one currently in your '940. TS-940S - Repair 2017 - 1 - 30 Document by David Lowrance AL5X. Thread starter Ebay; Start date Jun 29, 2018; E. Showing all 2 results Kenwood TS-450 Digirig Cable Set $ 29. 83 MHz IF from Telepost Inc. HOW TO INCREASE Rx SENSITIVITY OF KENWOOD TS-940S AND TS-940SAT An article posted on the LongWire, December 2004, published by the Liverpool Amateur Repeater Club (LARC). Kenwood TS-940 Troubleshooting Hints and Updated Adjustment Procedures and Mods Opinions, Notes, Corrections, Tricks and Hints from KB7JS Revision 8. GENERAL: Type: Amateur HF transceiver: Frequency range: TX: 10-160 m + WARC RX: 0. I'm a TS-940 user and on that radio you press the AT. I was gifted an older Kenwood TS-940S by an Elmer. I can order a generic 8 pin to RJ 45 cable somewhere and then build a crossover RJ 45 cable to get the pins in order if this is still on hold. If not, the modification for it (and some other good info) can be found here: Long story short, it seems you need to cut/remove D130 on the digital unit, which is behind the face of the rig. Nov 9, 2010 · 2) Go to a Kenwood parts distributor and hope they still carry one - $$$$ 3) Wait for a used TS-930S "signal board" to come up for sale then snatch it. Jun 27, 2005 · Looking for a qualified tech for the 940. I have 4 (TS-711, TS-811, TS-140, TS-450). Guaranteed attenuation more than 80 dB. T button under the number pad then the Send button to activate the antenna tuner. Intermittent RX sensitivity / Bad Solder joints on RF Board for TS-940: 18 Aug 2008: TS-940S earlier activation on pa fan: 22 Mar 2008: TS-940S lamp replacement and troubleshooting: 03 Mar 2008: Kenwood TS-940S GenCov Xmit. Aug 28, 2022 · I had originally added the Giehl chip to the TS-940 when I first bought it as it overcomes the few operational issues of the TS-940, such as allowing the 4 position internal memory bank switch to be selected from the front panel without having to use the internal switch, and also changes the main dial tuning speed. I really should find a clean 440 to add as well. At 30+ years old, they have all developed something over the years. Mi sono messo li con santa pazienza ed ho visto che il tutto era in granparte ascrivibile all'alimentazione. 0. In thinking the PA board isn't providing enough rf output. Low power output could be the result of a myriad of problems, including low DRV from the RF amplifier stage. Jun 16, 2002 · Kenwood TS-940 To increase the RF Range: remove cover on digital unit B cut D130, between IC107 and IC109, cut D135 between IC111 and IC112 assenble unit reset:hold the "A=B" button while turning unit on This info is from "Ultimate Modification Bible IV" Kenwood TS-940S SPECIFICATIONS. I recently became the owner of my first Kenwood transceiver, a TS940A. Il 940 Spoiler è fornito attraverso lo shareware marketing, un metodo che ti dà il miglior software disponibile ad un prezzo minimo fornendo sei un mezzo per provare ciò che potresti trovare abbastanza utile per supportarlo manutenzione e ulteriore sviluppo. I owned one for over 12 years and have worked on numerous others. Everything works great just this one section doesn't light up. Jun 21, 2018 · The TS-140S was a reliable, entry-level radio in its day. " Oggetto: info su seriale Kenwood (TS 940) Inserito il: 26/09/2012 14:46:28 Messaggio: BUONGIORNO, desideravo sapere come si deve intrepretare un seriale del kenwood TS 940. Audio and Video chat rooms. The TS-940 developed a bad reputation because of loosing phase locked loop alignment, and/or a very badly designed power supply. TS-940S optional IF filters : Optional filter type YK-88A-1, for AM. Any help would be greatly appreciated. These radios are victims of persistent heat, over time, degrades components in the power supply, eventually leading to catastrophic failure. In 1985 Kenwood, a Japanese company, began to produce the TS-940S HF Transceiver and discontinued it in the 90s. The only thing I know of is the built in power supply has some after market options that are supposed to be better than the original. 0 Many Thanks to all who provide critique, it helps make this document even better. Crypto Apr 26, 2019 · $450. I don't see any May 3, 2005 · I am selling my kenwood ts-940s 160 thur 10 meter transceiver, That is in great working condition, The receiver is very seneitive. Discontinued! Replaced by the TS-950S. I wanted a KENWOOD TS 950SDX transceiver from the day I got my radio amateur licenseI have many transceivers in the shack, but for me, the KENWOOD TS 950SDX is the holy grail! Now, after 25 years of waiting, I count myself among the happy owners of KENWOOD TS 950SDX! It was worth the wait! I found a KENWOOD TS 950SDX, new! Oct 17, 2024 · Hi all Kenwood owners, My main display has one section that won't light up (#6). Hello Doug, I'm running a TS-940S that has the Piexx interface installed. 00 (0 Bids) End Date: Friday Apr-26-2019 23:59:54 PDT Bid now | Add to watch list Continue reading Someone used cb finals for drivers and added a v reg since they are 12volt and the 940 uses 28. The supply fits perfectly into the TS-940S case with plenty of room for cooling. la numerazione segue la logica matematica con una numerazione iniziale e una finale, oppure dalla numerazione si può ricavare anno e mese di produzione Repairing a Kenwood TS-940S. TS-940S, provided the input impedance of the transmis- sion line is not outside the capability of the AT-940 Auto- matic Antenna Tuner pi-output matching network. So if I’m following correctly, the Icom 8 pin round jack with 3. Also would like to talk about the hi-fidelity mod for this radio. This forum message list include all message for that is related to TS-940, this include message that also is related to articles. 00 (0 Bids) End Date: Friday Apr-19-2019 23:59:47 PDT Bid now | Add to watch list Continue reading Jan 28, 2023 · Digirig keys up Icom IC-25H. More to com Feb 12, 2019 · The kit was set up for the TS-940 and had components installed for its 12v Meter Lamp supply. I’ve tried all the bands and it all sounds the same. Pretty basic. -----Earlier 5-star review posted by WW4Q on 2010-02-16 I love this radio. 5 : 1 when using 50 ohm coaxial transmission liner or a system Dec 11, 2009 · The WorldwideDX Radio Forum was originally established in 2001. Center frequency 8830 kHz. Apr 21, 2020 · Powering the Anytone D578UVIII Plus from my 2021 F-150? Hi all I have a Kenwood TS-940s when I power it on I get nothing on the display and no sound good to it, I have checked the power with a multimeter in Dec 15, 2010 · It's not clear if you've actually gotten your TS-940S to transmit on 11m. Dec 11, 2009 . 8vworking) This forum does not allow a single user to have more %PDF-1. One of the drivers was blown I am waiting for parts to set it back OEM. Lots of bells and whistles, many of which will simply overwhelm a new user. Thursday night I was flipping through and all of a sudden everything got very quiet. Dec 11, 2009 · Search forums. I just installed Log4OM and then installed OMNIRig and all is working great. modification: 28 Jan 2007: Improved CW monitor keying fort Kenwood TS-940: 09 Nov 2006: TS-940 fan mod: 03 Jun 2006: PLL Dec 15, 2010 · It's not clear if you've actually gotten your TS-940S to transmit on 11m. Open the URLs, which are collected below, and you will find all the info you are interested in. Serious problems Kenwood never addressed; For that reason the reputation of the good points of the TS-940 suffered. Good all around radio. 37v not working (1. 6 %âãÏÓ 755 0 obj > endobj 773 0 obj >/Filter/FlateDecode/ID[5B826F7DC3A3B24E86798E16704CF838>6FF6F1FD6E2617468005FC108859AAE1>]/Index[755 38]/Info 754 0 R Hello. Audio mod for Kenwood TS-940s Nov 19, 2012 · In pausa pranzo oggi , appena tolto il coperchio del ts 940 mi cade sul pavimento questo compononte evidentemente rotto: sul corpo c'e' scritto c143 tsr, quindi presumo si tratti di un 2sc143, analizzando visivamente il kenwood al suo interno non ho notato nulla di anomalo, tutto sembra in ordine, almeno per quanto riguarda le parti visibili Install our CB Radio Talk (CBRT) App and connect with CB radio enthusiasts at CB Radio Talk Forum. Addendum: So, this morning I had the rig on 80M SSB, listening to some of the rag chewing. The audio quality of the TS-940S is amazing, and the transmit sound received always an excellents reports. Hi all I have a Kenwood TS-940s when I power it on I get nothing on the display and no sound good to it, I have checked the power with a multimeter in different locations to see if there is power So I am getting Power There is a glass fuse in the middle of the radio and that's working fine Is there another fuse that would power up the front panel. Dec 8, 2015 · #18 Kenwood TS 940 DOT on display Chasing down the rabbit hole Pt 1 In this video I have a TS-940 that has the dreaded dots on the display. We are working every day to make sure our community is the best Radio Hobbyist's site. As it turned out the FETS were installed correctly. We have collected the most relevant information on Kenwood Ts940 Audio Problems. Feb 24, 2010 · The '940 was a capable, fully featured rig and it made a lasting impression on me. So I recently acquired a kenwood ts-940s. He said it was one of the best Ham Radios he has TS-940S rear panel and connections : Kenwood TS-940S rear panel. 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