Cm 120B LO

This forum exists for the purposes for discussing service monitors (This includes but is not limited to Motorola, HP, Aeroflex, GD, etc). Additional topics allowed include test procedures, interpretation of test results, where to find information about specific tests, antenna VSWR, return loss testing, duplexer and filter alignment, etc.

Moderator: Queue Moderator

Post Reply
resqroz
New User
Posts: 19
Joined: Mon Jan 28, 2008 5:49 am

Cm 120B LO

Post by resqroz »

I have a Com 120B that apparently has a bad first LO. Is it possible to get schematics for this module, or replacement modules? Is there anyone that can repair this unit preferably in the Southern California area?
Top
ljohn6
New User
Posts: 37
Joined: Sat Jan 08, 2011 12:47 pm
What radios do you own?: Kenwood,Icom,Hytera

Re: Cm 120B LO

Post by ljohn6 »

cal-customs can fix they have a shop in Medford Oregon
Top
ke2d
Posts: 31
Joined: Thu Mar 01, 2007 6:24 pm

Re: Cm 120B LO

Post by ke2d »

Open the LO unit and check for a shorted elecytrolytic capacitor, and any associated parts nearby. I had one with a shorted cap on the +12v input a few years ago.
Top
Post Reply

Return to “Test Equipment & RF Equipment Alignment”