[ICOM] IC-275H Scan problem

Gary Fiber g.fiber at verizon.net
Fri Jan 7 12:15:00 EST 2005


Warren,

Its generally a simple voltage adjustment. though you should have a signal 
generator to provide a signal. I don't have a service manual but have told 
many during my Icom years how to fix this.
The problem is the voltage change the squelch is looking for is not 
happening. the voltage I remember is 3 volts but exactly where to do the 
adjustment and what its called I don't remember without the service manual.

Gary K8IZ
                        I have an Icom 275H that when first turned on and 
put in scan mode (FM) the rig will go right past busy channels. It is 
supposed to pause for a few seconds when a signal is present. Also, when 
the rig is cold you can put it in scan and get it rolling along and open 
the squelch and it will continue to scan with white noise like the squelch 
is open.  It eventually warms up and will stop on some busy channels but 
will go past others, no set pattern that I can find.  Opening the squelch 
once it is warm will stop the radio from scanning which is normal. TX and 
RX seem fine, the radio makes full power and can dig out weak signals. I 
don't really know where to go for service, sending it to Icom probably 
would be best unless someone could suggest an easy repair or has another 
service outlet they recommend.
>Thanks and 73
>Warren Flearl n0wf
>Omaha,Ne

Gary Fiber K8IZ
GROL PG-19-6691
Washington State Resident




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