Matt, it is likely the audio output transistor. ER41 comes in two
versions. One has about 2 watts of audio from one transistor. The other has
two transistors and about 10 watts out. In both cases the transistors are
mounted underneath the receiver on a tab on the heatsink. If yours has tone,
you will have to loosen the tone board to see the transistor(s). I have seen
the one transistor version fail where it will still have some audio. The two
transistor version sometimes has a small resistor in the bias circuit that
changes value. In this case, the audio will usually also be quite distorted.
I think it is 240 ohms or so. I don't have the diagram here now. Seems like
the metering socket has a pin to check the bias on the output transistor. If
it cannot be adjusted into specs, the transistor or the resistor are the
most likely suspects from my experience, although I have seen other
problems.
nd where to look. I
have not done
any trouble shooting at this point, but thought by
chance if is was a
common problem someone could point me in the
right direction.
Thanks.
Mathew
Yahoo! Groups
Links
<*> To visit your group on the web, go
to:
http://groups.yahoo.com/group/Repeater-Builder/<*>
To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of
Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
Dave Baughn
Director of Engineering
The University of
Alabama
Center for Public Television and Radio
Box
870150
Tuscaloosa, Alabama 35487
205.348.8622 cell 205-310-8798
NEW
EMAIL
[EMAIL PROTECTED]