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Yaesu Mark-V FT-1000MP Operating Manual: Installing Internal Accessories; Tcxo-unit

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Installing Internal Accessories

This section contains the installation procedures for
installable options available for the MARK-V FT-1000MP.
A complete list of options and their corresponding Yaesu
P/N is provided on pages 5 and 6 of this manual. Please
check with your dealer for pricing and availability.
Figure 1
Figure 2
page 112
The Temperature-Compensated Crystal Oscillator
is the heart of the master reference oscillator used
throughout the transceiver. An optional TCXO unit is
available for installation into the MARK-V FT-1000MP.
The ±0.25-ppm TCXO-6 replaces the factory-installed
TCXO unit, and it provides enhanced frequency stabil-
ity compared to the standard ±0.5-ppm module.
If you also have the optional YF-115C Sub Receiver
filter, now would be a good time to install it, as its mount-
ing position is also exposed during the TCXO installa-
tion procedures.
TCXO-6 Installation
r Disconnect all cables from the transceiver.
r Referring to Figure 1, remove the four screws (
on each side of the transceiver, and the seven
screws (
) from the bottom of the transceiver, then
lift off the bottom cover.
r Referring to Figure 2, remove the six screws (
from the top panel. Pry the top cover open and dis-
connect the speaker cable from the speaker, then
lift off the top and side covers.
r Locate the factory-installed TCXO UNIT in the front
right corner of the chassis (see drawing below), and
remove the wiring connector from the board. Use a
small screwdriver to pry up the rear edge of the
connector, and avoid pulling on the wires.
r Remove the four screws at the corners of the board,
and remove the factory-installed TCXO UNIT.
r Position the new TCXO-6 in place, and use the
same screws just removed to affix the new board
in place.
r Reinstall the wiring connector.
This completes the installation; connect the speaker
cable to the speaker on the top cover, then replace the
all covers and screws removed above (unless install-
ing other options now).
MARK-V FT-1000MP Operating Manual


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