What causes a Kenwood ts-430 to oscillate?

5 volt regulator oscillates. In both rigs, the 5V regulator, IC9 on the IF board, would break into oscillation when the input voltage approached 12V. In the other rig, IC9 would fail around 12.5 volts affecting use of this rig mobile.

Can a 10 meter radio be converted to CB?

Copper Electronics, Thomas Distributing, and many other online retailers sell 10 meter amateur radios. These radios they sell can not be used on the CB channels, they must be converted back to their original export version condition to work on all the bands again. Some are made intentionally so they can not be converted to full-band use.

How many bands does a 10 meter radio have?

Technically the radio can, and will, function quite effectively on all the bands; it is the nature of their design. Either it is a 3, 6, 8, or 12 Band radio usually. Each band consisting of 40 channels. But everyone uses them, is it legal?

Is the ATT switch on the Kenwood ts-430 working?

The ATT switch seems to function correctly, though. Also the meter never moves when transmitting on AM or on SSB. The radio is putting out a solid 100w carrier in AM mode (verified with an external meter) and swings to more than 100w in SSB.

Is there a problem with my Kenwood ts440s?

Have Kenwood TS-440S that has a problem. Radio working what seems to be ok, turn radio off, wait a while – next day even, turn radio on, get blank display – just bars across bottom of display, wait hours to days later and radio finally comes to life and works what seems to be ok.

Where can I get help with my ts-440 transceiver?

Another big help is the TS-440 Yahoo group: TS-440. Troubleshooting a transceiver is a complicated task. There are thousands of components, and dozens of wires, connectors, and cables. The obvious: Is the circuit getting power?

What do you need to repair a ts440s?

Tools needed: A good DMM (Digital Multi-Meter), Set of Small regular Screwdrivers, small phillips screwdriver, magnifying glass of some sort, Fine tipped 25W solder pin, Solder, tweezers, pick, plenty of light, and a large work table / area. This is the TS-440S with no top cover. You can see the IF Board.

What should the volts be on a ts440s?

Turn on the radio for about 30 minutes to warm up, set it for 14