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Maintenance
6-26
1705A Spectrum Monitor
FRONT
J1
J3
J2 J4
Ground strap
Remove these screws to remove this board
Figure 6-12: Removing the Power Supply board
1. Unplug the interconnecting plug from the right side of the LNB power
supply.
2. Remove the two Torx screws securing the circuit board to the rear panel.
See Figure 6-13.
3. Remove the circuit board.
4. Replace the circuit board by reversing the procedure.
BESCHLEUNIGUNGSSPANNUNGKLEINERALS20kV
DIEINDIESEMGERA TENTSTEHENDE
RONTGENSTRAHLUNGISTAUSREICHENDABGESCHIRMT
TOAVOIDELECTRICALSHOCK,THEPOWER
CORDPROTECTIVEGROUNDINGCONDUCTOR
MUSTBECONNECTEDTOEARTHGROUND.
SPECTRUM MONITOR
70MHz
INPUT
L-BAND
INPUT
LNBPOWER
LNBPOWER
ON
OFF
+18VDC@250mA
ON
WARNING
0.70MAX
50/60Hz
90-250V
REPLACEFUSEONLY
WITH
250V2AFTYPE
333-- 3990--01
Remove these screws to remove
LNB Power Supply board (A4) or to
replace LNB LED.
Figure 6-13: Mounting screws for the LNB Power Supply circuit board, A4
Removing the LNB Power
Supply Board