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Chapter 3 Replacing Assemblies
To Remove the A2 Display Board, Keypads, and Window
3-12
Assembly-Level Service Guide
3
4
Pull up on the top portion of the front bezel until the top portion
of the display board is free from the top tabs.
5
Pull down on the bottom portion of the front bezel until the
display board is free from the bottom tabs.
If the board is still not free, insert a small flat-blade screw driver or object
between the bottom of the display board and the bezel to gently pry the
board loose from the bottom tabs.
6
Remove A2 Display Assembly from the front bezel.
NOTE
When installing A2 Display Board into the front bezel, pull up on the top
portion of the front bezel and press display board into place. Make sure
that the board is positioned all the way into the bezel until the two tabs on
top and three on bottom are visible.
7
Now, remove the POWER key cap by gripping and pulling it.
NOTE
The cap must be removed to make installation of the A2 Display Board
Assembly easier.
8
As shown in Figure 3-7, the rubber keypads (MP6) are now free.
Just pull them out of the bezel.
9
Remove the window (MP5), shown in Figure 3-7, by pressing down
on the two top tabs and sliding the window forward.
Summary of Contents for 53131A
Page 1: ...Assembly Level Service Guide HP 53131A 132A 181A 225 MHz Counter ...
Page 2: ......
Page 14: ...Contents xii Assembly Level Service Guide ...
Page 22: ...Preface xx Assembly Level Service Guide ...
Page 23: ...1 Performance Tests Verifying Specifications ...
Page 97: ...2 Service ...
Page 149: ...3 Replacing Assemblies Disassembly and Reassembly ...
Page 173: ...4 Retrofitting Options ...
Page 191: ...5 Replaceable Parts ...
Page 201: ...6 Backdating Manual Changes ...
Page 218: ...Chapter 6 Backdating Backdating Specifications 6 18 Assembly Level Service Guide 6 ...
Page 219: ...7 HP 53131A 132A Specifications ...
Page 235: ...8 HP 53181A Specifications ...
Page 246: ...Chapter 8 HP 53181A Specifications General Information 8 12 Assembly Level Service Guide 8 ...
Page 252: ......
Page 254: ... Manual Part Number 53131 90039 Printed in U S A MARCH 1999 ...