Specifications

Chapter 4 Retrofitting Options
To Retrofit the 53210A Channel 2 Front Panel Input (Option 106 or
Option 115, plus Front Panel Option 202)
Assembly-Level Service Guide 209
Channel 2 Front Panel Retrofit Procedure (53210A)
1 Remove the front panel assembly as follows:
NOTE Read each instruction step in its entirety, while examining the
hardware and referring to the appropriate figure(s), before
proceeding with the step. This will acquaint you completely, in
advance, with the action to be performed. The actions in some
steps must be accomplished simultaneously to succeed. Read all
nearby NOTES carefully.
2 Turn the chassis upside down. On the bottom of the motherboard,
remove the T10 TORX screw that secures the smaller Processor
board to the motherboard (see Figure 4-9).
Figure 4-9. Processor Printed Circuit Board
3 Note how the left rear corner of the processor board fits into its
slot (above the small plastic standoff inside the slot) to hold the
board horizontal. Press the two tabs securing the edge connector
of the processor board to release the board.
4 Remove the processor board carefully from its connector and set
it aside in a safe location on the ESD mat.
Motherboard
T10
Screw
Front
Panel
Processor