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SO-2 TEMPERATURE-COMPENSATED
CRYSTAL OSCILLATOR (TCXO)
CAUTION:
SWITCH OFF THE POWER AND UNPLUG THE DC
POWER CABLE BEFORE BEGINNING INSTALLATION.
1 Remove the bottom case (8 screws).
2 Remove the protective cover installed on the PC
board (6 screws).
3 Remove the 13 screws that fasten the PC board to
the chassis.
4 Remove the clamp that fastens the heat sink to the
chassis.
5 Remove the cable from the CN1 connector.
6 Take the CN1 connector cable off the cable holder.
7 Cut the leads of the R503 and R504 resistors.
8 Insert the SO-2 unit into the specified position on the
PC board.
9 Turn the PC board over.
• Be careful not to damage the flat cables
connected to the PC board, and not to drop the
SO-2 unit.
10 Solder the five pins of the SO-2 unit to the PC board,
then cut off the SO-2 pins extruding from the PC
board.
11 Re-position the PC board.
12 Re-install the 13 screws on the PC board.
13 Re-install the protective cover on the PC board
(6screws).
14 Re-position the clamp.
• Be careful with the orientation of the clamp. See
the drawing in step 4.
15 Reconnect the cable to the CN1 connector.
16 Pull the CN1 connector cable, and lock it using the
cable holder.
17 Replace the bottom case (8 screws).
14 INSTALLING OPTIONS
1
2
SO-2
Clamp
Heat sink
Cut here
CN1
R504
R503