Question about Uniden BC340CRS Base Scanner

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Plugged in but no power?

Have BC340CRS can not get it to turn, on worked yesterday... only 2 days old..what am i doing wrong?

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  • sissyboo1972 Mar 10, 2009

    I just bought it.. worked fine last night.. clock is flashing...I've clicked something and don't know how to fix itsomething and

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  • 69 Answers

I would recomend checking the fuse in the wire or plug you are using, if that is good i would then take a test light and check the power to my leads, most scanners operate on a 12volt source with a small inline fuse, so just check all the voltage and grounds good.

Posted on Mar 10, 2009

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Posted on Jan 02, 2017

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1 Answer

How to delete old frequencies on bc340crs?


To reset the scanner to factory defaults, turn off the scanner. Then, while
holding down 2, 9, and HOLD, turn on the scanner. All scanner memory
contents are erased.

May 26, 2014 | Uniden BC340CRS Base Scanner

1 Answer

Has power but will not turn on.


Check power source to make sure it is correct voltage/amps

Dec 09, 2013 | Uniden Bc340crs Bearcat 100 Channel Police...

1 Answer

Bc340crs has power but will not turn on


Sounds like its not getting enough power. Are you sure you're using the right power supply ?

Dec 09, 2013 | Uniden BC340CRS Base Scanner

1 Answer

Bc340crs


Why not contact Uniden for an answer?

Apr 10, 2013 | Uniden BC340CRS Base Scanner

1 Answer

My scanner is scanning but nothing is happening,not getting anything at all. Itgoes through all the numbers but is not picking anything up,and it was working fine yesterday.Please tell me what my problem...


Perhaps it's a slow day? Start by turning the squelch all the way down until you hear static. Then, turn it up just enough to cancel out the static. It's possible that it got bumped or change somehow, and now it is blocking out the signals you want to receive.

Oct 04, 2012 | Uniden BC340CRS Base Scanner

1 Answer

I have a uniden bc340crs scanner that is 1 yr old. my backlit window does not display any of the info for my scanner. i want to reprogram and the 2-9-hold thing does not work even after trying ronnie...


This is how you control the back light display on your scanner.
SNOOZE/Backlight - Backlight: Tap the snooze button to turn the LCD backlight on for 15 seconds. Press and hold to permanently turn on the backlight. Press and hold again to turn off the backlight.
Here is a link to the users manual as well. http://www.uniden.com/pdf/bc340crsom.pdf

Mar 14, 2011 | Uniden BC340CRS Base Scanner

2 Answers

How do I get it working


u need the codes to program it you can get a book online 4 it

Dec 26, 2008 | Uniden BC340CRS Base Scanner

2 Answers

I have my codes programmed but I do not hear anyone talking


police codes and signals have now moved from 26mhz to a digital frequency. now you will need a decoded fomat frequency analyzer. BDP3534Z 26 division

Dec 25, 2008 | Uniden BC340CRS Base Scanner

1 Answer

Programming scanner


Press prgm, enter code,press enter last repeat for each channel.

Apr 22, 2008 | Uniden BC340CRS Base Scanner

1 Answer

Clearing memory


WELL, After a year I alone, without any help from UNIDEN, FIGURED IT OUT.
1. TURN IT OFF, UNPLUG AC JACK IN THE BACK!
2. REMOVE Backup battery cover "underneath" scanner! TAKE ALL 3 BATTERIES OUT.
3. I PUSHED THE POWER BUTTON TO BLEED ANYTHING OFF IN THE CAPACITORS, IF IT HAS ANY INSIDE?
4. PUSH THE"2", "9", AND "HOLD BUTTONS DOWN, THEN PLUG THE A.C. BACK IN ON THE BACK OF THE SCANNER.
5.You WILL notice while you are doing STEP#4 THAT THE DISPLAY SAY'S "CLEAR". ALL FREQUENCIES WILL BE CLEARED IN THE MEMORY!! THEN TURN Scanner OFF reinstall the BATTERIES, TURN BACK ON AND START PROGRAMMING!! THIS WAS FOR A "BC340CRS" SCANNER

Mar 28, 2008 | Uniden BC340CRS Base Scanner

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