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ICOM A110 airband radio failed to power up with 13.6 volts applied

13.6 volts trace tdo power input on mother yet unable to power up please help

Posted by patric olize on


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Clint Millett

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  • 97 Answers

Here's a link to the service manual - > doc_files > manuals > ica110_sm. This may help. Have you checked both fuses? They should both be about 10A. Use a meter to check them. A visible check may not show the fuses open.

Posted on Nov 10, 2019


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Louie Role

  • 6966 Answers


Hi, The Icom radio models start with IC followed by numbers and then letter(s). The BP5 is the model of the battery pack. Pls post back. I'm not familiar with Regency U156B. However, there is a Regency RU156 which is a 16 channel UHF 25watt mobile radio which could either be crystal controlled or PLL diode matrix. Regency was reported sold to the BK Relm Company, which no longer supports older Regency Radio Equipment. There are a few sites on the Internet where you can get hold of a user's manual (some for a fee) like Hope this be of some help/idea. Post back how thin gs turned up, the Icom model or should you need additional information. Good luck and kind regards.

Posted on Oct 03, 2007



  • 319 Answers

SOURCE: No Life, does NOT power up, Fuse is OK

There is apparently some component in the stanby circuit that is malfunctioning. There may be a milli amp fuse off the standy transformer secondary. Check - don't confuse with a resistor. It may read 2 ohms or less

Posted on May 10, 2008


  • 148 Answers

SOURCE: Searching for Satellite

The voltage is supplied by the power-supply through the RF/IF interface usually encased in a metal box on its own. Also without knowing the model number of your unit I cant help any further.

Posted on May 17, 2008


  • 463 Answers

SOURCE: icom ic720a ham radio not transmitting, pliz help

upon what frequency are you trying to transmit?

Perhaps the radio is blocked from trying to TX on said frequency.

Posted on Mar 20, 2009


  • 3 Answers

SOURCE: My icom 706 mk2g powers


I had a similar problem on my 706 MK1. The problem was corroded connections on the white power connector at the rear, When on tx the voltage drop across this connector was great enough to switch the radio off. try cleaning/re-seating this connector


Posted on Oct 16, 2009

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Hi Joshua,

Not enough info provided, from you.

IC a 110 power problem means very little.

IC indicates to me that you havs an Icom radio, is that correct?

a110 is confusing me though. What exactly are you trying to say here?

To assist you in finding the answer, I need much more info:

1. The make of the radio i.e,. Icom, Motorola etc,.
2. The Model Number ie, IC-XXX, etc,.

Then I require as much info as possible regarding the problem

By just posting what you have doesn\'t help me help you.

Please reply with the above requirements, and I\'ll find a solution for you.


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