L
Lucifer
Guest
The tuning dial of my Yaesu FRG-7700 receiver will not rotate beyond
about 780 Khz.
Is that easy to fix?
about 780 Khz.
Is that easy to fix?
Navigation
Install the app
How to install the app on iOS
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
More options
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
P
pfjw@aol.com
Guest
On Monday, June 10, 2019 at 3:30:30 AM UTC-4, Lucifer wrote:
I suspect that the tuning mechanism is a geared assembly. Manual here:
http://www.radiomanual.info/schemi/YAESU_RX/FRG-7700_serv.pdf
If it is mechanical, it may be jammed on something caught in the gears, or perhaps the gears have slipped. Otherwise, you may need to replace the part.
Peter Wieck
Melrose Park, PA
The tuning dial of my Yaesu FRG-7700 receiver will not rotate beyond
about 780 Khz.
Is that easy to fix?
I suspect that the tuning mechanism is a geared assembly. Manual here:
http://www.radiomanual.info/schemi/YAESU_RX/FRG-7700_serv.pdf
If it is mechanical, it may be jammed on something caught in the gears, or perhaps the gears have slipped. Otherwise, you may need to replace the part.
Peter Wieck
Melrose Park, PA
C
Cursitor Doom
Guest
On Mon, 10 Jun 2019 05:32:13 -0700, pfjw@aol.com wrote:
If the main bearing is badly worn, then those teeth can come out of mesh.
I've had this with a Trio TS530s. It's a simple matter to reset the
gears, but if the worn bearing isn't dealt with beforehand it'll come out
of mesh again pretty quickly.
--
This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.
If it is mechanical, it may be jammed on something caught in the gears,
or perhaps the gears have slipped. Otherwise, you may need to replace
the part.
If the main bearing is badly worn, then those teeth can come out of mesh.
I've had this with a Trio TS530s. It's a simple matter to reset the
gears, but if the worn bearing isn't dealt with beforehand it'll come out
of mesh again pretty quickly.
--
This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.
L
Lucifer
Guest
On Mon, 10 Jun 2019 18:32:07 -0000 (UTC), Cursitor Doom
<curd@notformail.com> wrote:
It works properly up to about 800Khz. Further rotation of the dial
is possible but the frequency on the digital readout and the part
around the dial do not go any higher.
Hopefully when I take the cover off I will be able to fix it.
<curd@notformail.com> wrote:
On Mon, 10 Jun 2019 05:32:13 -0700, pfjw@aol.com wrote:
If it is mechanical, it may be jammed on something caught in the gears,
or perhaps the gears have slipped. Otherwise, you may need to replace
the part.
If the main bearing is badly worn, then those teeth can come out of mesh.
I've had this with a Trio TS530s. It's a simple matter to reset the
gears, but if the worn bearing isn't dealt with beforehand it'll come out
of mesh again pretty quickly.
It works properly up to about 800Khz. Further rotation of the dial
is possible but the frequency on the digital readout and the part
around the dial do not go any higher.
Hopefully when I take the cover off I will be able to fix it.