Anritsu S113C Guide de l'utilisateur télécharger pdf (Page 10)

11. FRONT PANEL ASSEMBLY REMOVAL

AND REPLACEMENT

This procedure provides instructions for removing

and replacing the Site Master front panel assembly.

With the front panel assembly removed, the LCD

display, keypad PCB, keypad membrane, and main

PCB assemblies can be removed and replaced.

1. Place the Site Master face up on a work sur

face.

2. Remove the four rubber corner bumpers by

carefully sliding the bumpers off of the case

corners (Figure 15).

3. With the bumpers removed, the access holes

for the case screws are revealed. Use a Phil

lips screwdriver to remove the four screws

securing the two halves of the Site Master

case together.

4. Carefully lift up on the right side (as viewed

from the front) of the front half of the case

and begin to separate the two halves.

CAUTION

Do not force or pull the two halves of the case

apart as there are delicate cables attached be

tween the two halves that must be discon

nected first.

5. Carefully depress the latch tab and discon

nect the LCD display cable from J12 on the

main PCB.

6. Carefully disconnect the keypad interface ca

ble from J4 on the main PCB.

7. Carefully disconnect the LCD display

backlight cable from J15 on the main PCB.

8. Remove the front panel assembly.

9. Reverse the above steps to replace the front

panel assembly.

NOTE

The corner bumpers only mount one way. That

is, the raised area inside one end of the

bumper (Figure 13) is made to conform to the

contour of the front cover only.

10 Site Master S113C/S331C/S115BQ MM

Figure 12. Removing the Corner Bumpers

J15

J12

Figure 13. Corner Bumper Detail

RAISED AREA

Figure 14. Site Master Front Panel Cable Connections

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16

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Anritsu S113C Guide de l'utilisateur Page 10

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