The original display tube (LD-8109) used in the DG-1 digital display for
the TS-820 and TS-820S has been discontinued by the manufacturer. However,
there is a replacement tube available. This tube is the LD-8135. It is
not a direct replacement for the original tube. The leads come out of both
ends of the display tube instead of just one as in the LD-8109. Therefore,
it will be necessary to replace the complete display unit if the display
tube fails. The part number of the new display unit is X54-1310-00.
Please use this part number when ordering a replacement display unit. The
new display unit is being installed in the current production of the TS-820S
and DG-1.
The new display unit (X54-1310-00) is a little more involved to install
than the old one. The installation is as follows:
-
Remove the top cover of the TS-820 (or TS-820S) and set the unit on
the bench so the front panel is facing you.
-
Remove the two screws from the original display unit (save them),
unplug the display unit forom the counter assembly and remove the display
unit from the transceiver.
-
Run the connector of the new display unit through the left bracket
(from the center).
-
Gently (but firmly) push the right side of the display unit throught
the right bracket. ( This is the most difficult part).
-
Gently push the left side of the display through the left bracket.
-
Install the screws from the old display in the mounting bracket of the
new display unit and plug the connector into the counter assembly.
-
Turn on the TS-820 (or TS-820S) and make sure the display tube works
properly.
-
Replace the top cover of the transceiver.
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