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• CR-293 HIGH STABILITY CRYSTAL UNIT
q
Remove the bottom cover as shown in the diagram on
p. 3-1.
• Remove the UX-910 if you have installed it. (p. 3-1)
w
Remove 6 screws from the PLL shield cover, then lift up
the PLL shield cover.
PLL shield
cover
e
Disconnect the FFC (Flexible Flat Cable) from the DIS-
PLAY unit and the connection cable connectors from
J501 and J1051 on the MAIN unit.
r
Remove 5 screws from the PLL unit, then lift up the PLL
unit.
t
Unsolder the original reference crystal, then remove it.
• The original reference crystal unit is soldered at both top
and bottom sides of the PCB (Printed Circuit Board).
J501
Original crystal
CR-293
J1051
Flexible flat cable
Unsolder the
original
crystal.
y
Install the CR-293 and solder the leads.
u
Return the PLL unit, PLL shield cover and bottom cover
to their original positions.
CR-293
soldering
points
Original crystal soldering point
3 - 4
Содержание IC-910H
Страница 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 23 SCHEMATIC DIAGRAM 33 Nov 2008 ...
Страница 26: ...Nov 2008 25 DISPLAY UNIT TOP VIEW The combination of top side and bottom side of this ...
Страница 33: ...Nov 2008 32 MAIN UNIT BOT VIEW The combination of top side and bottom side of this ...
Страница 41: ...SERVICE MANUAL VHF UHF ALL MODE TRANSCEIVER i910H ...
Страница 118: ...9 2 BOTTOM VIEW RIT BOARD BOTTOM VIEW VR A BOARD BOTTOM VIEW VR B BOARD ...
Страница 121: ...9 5 9 11 DISPLAY BOARD TOP VIEW 8 5 1 4 1 8 16 9 1 8 16 9 1 8 16 9 ...
Страница 124: ...9 8 BOTTOM VIEW PA UNIT 1 3 4 6 1 3 4 6 ...
Страница 126: ...9 10 BOTTOM VIEW PLL UNIT R341 MP11 ...
Страница 130: ...9 14 BOTTOM VIEW UX 910 MAIN UNIT 1 4 8 5 ...
Страница 144: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13714HZ C1 2001 Icom Inc ...