TM-742A WON'T HOLD MEMORY

Forum dedicated to discussion on Kenwood Amateur Radio products

Moderator: willbartlett

Post Reply
radioman1
Posts: 2
Joined: Tue Nov 03, 2009 4:18 pm

TM-742A WON'T HOLD MEMORY

Post by radioman1 » Mon May 31, 2010 12:17 am

I have a kenwood tm-742a tri-bander that the memory battery is good ( 2.8 volts ) but an hour after turning the 12 volts off and then back on , the freq's are gone , but if you let 12 volts hooked up and just turn the power off by the switch on the radio its OK ?????????
doe's anyone have any hints or ideas of a fix ??????
I'm out of ideas
thanks
mike

fineshot1
Posts: 72
Joined: Tue Jun 27, 2006 8:20 pm

Re: TM-742A WON'T HOLD MEMORY

Post by fineshot1 » Fri Sep 02, 2011 12:52 pm

Old post I know but thought i would just answer it in case anyone else needs to know.

The 641/642/741/742/941/942 series use the same lithium back up battery.

The Kenwood "East Coast Parts" part number = W09-0573-05 and this battery
if it falls close to 3.0 V is just about exhausted and should be replaced. It should
have an operational voltage of about 3.3V under load(in circuit load).
fineshot1
NJ USA

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest