Internal Assemblies — Main Chassis 4: Repair
123
System-on-Module (SOM) PCA
The System-on-Module (SOM) PCA memory stores the device software and configuration data. When
you install a new SOM PCA, you must also:
• Enter the device’s serial number and enable options using the Service Mode menus.
• Install the most recent software in the appropriate language using the Software Support tool. See
Table 35 on page 178 for part numbers.
• Give the user the README document that contains instructions for downloading the most recent
Efficia DFM100 Instructions for Use from the Philips’ Documentation and Download web site
(
http://www.philips.com/ProductDocs).
You need a T-8 screwdriver to detach or attach the SOM PCA.
Preparation
1 Save the customer’s configuration settings to a USB flash drive so the configuration can be restored
after the repair is complete. See the Efficia DFM100 Instructions for Use for information.
2 Open the Case. See “Opening the Case” on page 90.
3 Remove the Measurement Module. See “Measurement Module” on page 107.
4 Remove the Therapy Port. See “Therapy Port” on page 109.
5 Remove the Printer Assembly. See “Printer Assembly” on page 111.
6 Remove the Main Chassis. See “Separating Main Chassis and Rear Case” on page 113.
7 Remove the Main PCA Module of the Main Chassis. See “Disassembling Main Chassis” on
page 115.
Removal
1 Loosen and remove the two T-8 screws. See Figure 98.
2 Hold the two shorter sides of the SOM PCA next to the screw holes.
3 Using equal force on each side, gently detach the SOM PCA from the Processor PCA.
Do not wiggle or twist the SOM PCA to avoid excessive stress on the connectors between the SOM
PCA and Processor PCA.
Replacement
1 There is a key-in feature on the rectangular connectors. Align the key-in during installation, see
Figure 99.
Figure 98 SOM PCA Removal
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