RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog

Go Back   The Forums > Commercial and Professional Radio > ICOM Land Mobile Radio

ICOM Land Mobile Radio Discussion forum for ICOM land mobile radio equipment such as the IC-F series radios. Please do not post amateur radio topics here.

LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 12-17-2013, 9:52 AM
Join Date: Dec 2013
Location: Perth, Western Australia
Posts: 2
Default IC-F210 no AF out...

Hi Guys,

Recently resurrected an Icom IC-F210 440-490MHz LMR radio that had been reverse polarity connected and fried. Replaced the voltage regulators and the unit seemed OK. Programmed it up and onto the test bench. Radio TX's just fine but no audio out at all (including no BEEP and no EXT speaker).

The "BUSY INDICATOR" is constantly lit whether a signal is present or not. If I do TX into the radio with another unit the signal strength indicator lights up but still no audio out. Programming is pretty clean, no CTCSS or other tones and I've tried every combination of AF MIN and RF Squelch I can think of.

It's starting to look like a fault in the receiver with the BUSY IND always on - anyone got any ideas?
Reply With Quote
Sponsored links
  #2 (permalink)  
Old 12-17-2013, 10:11 PM
Join Date: Apr 2012
Location: Puget Sound
Posts: 711

Based on what you describe, I would say audio processor. VERY smal smd.
Reply With Quote
  #3 (permalink)  
Old 12-18-2013, 12:27 AM
Join Date: Dec 2013
Location: Perth, Western Australia
Posts: 2

Thanks - I was initially thinking it was the 5W Audio amp but that wouldn't explain the CHAN BUSY indicator. Someone else suggested it might be a ceramic crystal - I think both the crystal and audio processors are located close to the 8V and 5V regulators and they popped with a fair bit of heat so it may be those components.

Probably best just flogging the radio to someone who wants it for the TX half of a repeater and buying a new one!
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 7:07 AM.

Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
All information here is Copyright 2012 by LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2011 by LLC Privacy Policy  |  Terms and Conditions