Maintenance

Remove these five (5) screws to remove the rear panel.

333--3990--01

SPECTRUM MONITOR

DIE IN DIESEM GERAT ENTSTEHENDE

RONTGENSTRAHLUNG IST AUSREICHEND ABGESCHIRMT

BESCHLEUNIGUNGSSPANNUNG KLEINER ALS20kV

WARNING

TO AVOID ELECTRICAL SHOCK, THE POWER CORD PROTECTIVE GROUNDING CONDUCTOR MUST BE CONNECTED TO EARTH GROUND.

0.70 MAX

50/60Hz

90 - 250V REPLACEWITH FUSE ONLY

250V 2A F TYPE

70MHz

INPUT

LNB POWER

ON

L-BAND

 

INPUT

LNB POWER

 

 

ON

 

OFF

 

+18VDC@250mA

Secured by removeable nuts inside the panel.

Figure 6-9: Screws securing the rear panel

Removal of 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.

Removal of Front- Panel

Assembly

1.Remove the blue multiwire connector from J154.

2.Remove the two screws holding the board in place. See Figure 6-10 for location.

6- 22

1705A Spectrum Monitor

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Image 147
Tektronix 1705A instruction manual Removal of the Rear Panel, Removal of Front- Panel Assembly