Tektronix 1705A User Manual
Page 147
Maintenance
6- 22
1705A Spectrum Monitor
BESCHLEUNIGUNGSSPANNUNG KLEINER ALS
20kV
DIE IN DIESEM GERAT ENTSTEHENDE
RONTGENSTRAHLUNG IST AUSREICHEND ABGESCHIRMT
TO AVOID ELECTRICAL SHOCK, THE POWER
CORD PROTECTIVE GROUNDING CONDUCTOR
MUST BE CONNECTED TO EARTH GROUND.
SPECTRUM MONITOR
70 MHz
INPUT
L-BAND
INPUT
LNB POWER
LNB POWER
ON
OFF
+18VDC@250mA
Remove these five (5)
screws to remove the
rear panel.
Secured by removeable
nuts inside the panel.
ON
WARNING
0.70 MAX
50/60Hz
90 - 250V REPLACE FUSE ONLY
WITH
250V 2A F TYPE
333--3990--01
Figure 6-9: Screws securing the rear panel
1.
Remove the five rear screws. See Figure 6-9. Screws securing the power
receptical use removeable nuts as fasteners inside the rear panel.
2.
Unsolder the bnc and ground connections. (If 1700F10 Field Upgrade is
installed, unsolder leads from the battery connector.)
3.
Unsolder the two leads to the +18 V switch.
4.
Remove the hex nut on the L--BAND INPUT connector.
5.
Pull the rear panel free from the chassis, be careful not to pull the unsoldered
wires.
6.
To replace, reverse the procedure.
1.
Remove the blue multiwire connector from J154.
2.
Remove the two screws holding the board in place. See Figure 6-10 for
location.
Removal of the Rear Panel
Removal of Front- Panel
Assembly