Specifications

Table Of Contents
Chapter 4 Retrofitting Options
To Retrofit the 53220A/53230A Channel 3 Input, 6.0 GHz (Option 106) or
15.0 GHz (Option 115) plus Front Panel Option 202
224 Assembly-Level Service Guide
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 4-17).
Figure 4-17. Processor Printed Circuit Board.
NOTE For re-installation, note how the left rear corner fits into its slot
(above the small plastic standoff inside the slot) to hold the board
horizontal.
3 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.
5 Turn the counter chassis upright and position the counter as
shown in Figure 4-18.
P500
PROCESSOR
MOTHERBOARD
T10
TORX
SCREW
BOARD