[ICOM] Icom PW-1 Fault - Protect Light On, Auto Light Flashing

[Adam Farson]

Hi Bruce,

It sounds as if one of the four push-pull MRF150 PA modules has failed. I
would recommend that you contact the Icom service centre in Bellevue WA.

Best 73,
Adam, VA7OJ/AB4OJ
Moderator, Yahoo! IC-746 Group
 

-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of Bruce J. Howes
Sent: 01 January 2006 20:52
To: 'ICOM Reflector'
Subject: [ICOM] Icom PW-1 Fault - Protect Light On, Auto Light Flashing

After working flawlessly for several months, the PW-1 developed a problem
this evening.
While operating on 75 meters the "Protect" light came on the "Auto" light is
flashing.
According to my manual this indicates that the "Power level of the 4 PA
units becomes unbalanced".
Powering off the unit and attempting to transmit again gives the same
result.
 
Common faults, or suggestions of where to look?
I noted a burning smell, much like one gets from a charred resistor.
A quick look under the hood does not revel any immediate faults, but the
smell is still present.
 
Should this not be a straightforward field repair, the next question is
where to send the unit.
I typically send items back to Icom and have always had good luck, but
wonder if the group has another suggestion of someone on the east coast?
 
Tnx,
Bruce W1UJR




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