View and Download Kenwood TS-790A instruction manual online. Allmode Tribander. TS-790A transceiver pdf manual download. Also for: Ts-790e. View and Download Kenwood TS-780 service manual online. SP-71 V-UHF all mode duo bander. TS-780 transceiver pdf manual download. Also for: Sp-71.
Well, I needed to get back to my recently repaired Kenwood TS-790 as it developed a new problem. first ATV label (yes, there is an ATV label !) blinked from time to time, with no apparent reason and, sometimes, it kept lit for a long period. I checked schematics and got lost when trying to find the origin of the signal. But eventually it got worse: yesterday, while talking in a local QSO in 2m FM with the 790, I found a very curious thing. My 790 was
SLOW to react to key presses, frequency change and even PTT!. Yes, there was a variable delay, from zero to some seconds, for the unit to execute what it was asked to do. Having worked for years in digital electronics, I thought the CPU was receiving some kind of interruption which made it work slow and even lose some commands or inputs to it. Immediately I thought of a backup battery leak damaging the circuit. Here you have a low quality video of what happened. Sometimes dial
Kenwood Ts 890 Service Manual
is not updated but frequency changes. Also, F key is erratic: So I got the 790 back to the workbench and, yes, there it was!. Battery, which measured a perfect 3.32V, had leaked and damaged some PCB traces below it. I don't know how I missed this when I fixed the unit! This is what was below the battery. I got the bad battery out, cleaned the acid residue and added a battery socket and a 2032 3V battery which is smaller capacity than the original one but lots easier to locate and, with the socket, a breeze to replace next time. I used Renata swiss made battery and holder as they are IMHO one of the best batteries available. Note that the battery holder was not a perfect fit so I needed to add some wire to connect one of the poles to the PCB. But, all in all, it is lots better than the original soldered battery. I tested the rig and it worked almost flawlessly. Yes, there is now a different fault which I need to further investigate. Now ATV icon does not light and rig reacts fastly to keypresses, PTT and such. But now ON AIR LED is sometimes behaving strangely: it sometimes does not light and sometimes keeps on even when PTT
Kenwood Ts 120 Service Manual
is not active (but rigs go to TX and RX as it should). So I need to check carefully how ON AIR LED is activated and check the unit to locate the fault. I will do it when I install the UT-10 1.2GHz module I recently bought. so keep tuned for a further update :-)! Regards, JOSE K > Kenwood
Sponsored Links
Please select your desired model below. We have 133 Kenwood Diagrams, Schematics or Service Manuals to choose from, all free to download!
When drawing Electrical Schematics, Electrical Circuit Diagrams, Power Systems Diagrams, Circuit and Wiring Diagrams, Digital and Analog Logic Schemes, you will obligatory need the electrical symbols and pictograms to represent various electrical and electronic devices, such as resistors, wires, transistors, inductors, batteries, switches, lamps, readouts, amplifiers, repeaters, relays. Using SmartDraw means you can create wiring diagram on your computer, browser or mobile device—Windows ®, Mac ®, Android ®, iOS ®, or any other platform with an internet connection. Whether you're in the office or on the go, you'll enjoy the full set of features, symbols, and high-quality output you get only with SmartDraw. Electrical wiring drawing. ConceptDraw is a wiring diagram software that is available for the users on the Windows and Mac platform and is offered with a range of versions depending on price and functionality. With this software, you can be able to achieve a lot more when it comes to creating designs for wiring. SmartDraw comes with pre-made wiring diagram templates. Customize hundreds of electrical symbols and quickly drop them into your wiring diagram. Special control handles around each symbol allow you to quickly resize or rotate them as necessary. To draw a wire, simply click on the Draw Lines option on the left hand side of the drawing area.
kenwood at 130 schematic[155 KB]
kenwood basic m1a power amplifier service manual[3 MB]
kenwood connectors pinouts[283 KB]
kenwood dsp100[3 MB]
kenwood ka 801 integrated amplifier service manual (incomplete)[2 MB]
Disclaimer Brand names and product names are the property of their respective owners. This Website contains a compilation of information already available elsewhere on the internet and therefore considered to be in the public domain. We make every effort to ensure the information contained here is as accurate as possible, but we will not be responsible for any errors or omissions, or anything resulting thereof. All information on this website is supplied free of charge, in good faith and without warranty. E&OE. All the downloadable content on this website has been scanned thoroughly for viruses. However, we do not accept any liability for any loss, damage or inconvenience, of any kind, as a result of downloading any information from this site. Always scan any information downloaded from the internet with an up to date virus scanner before opening the downloaded information.