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Siemens-Elema AB SPR8-215.898.01 Page 1 of 6 MOBILETT Plus/ - E/ - M
Solna, Sweden Rev. 05 01.02 SPS-UD
Miscellaneous 8
Replacing the backup battery 8
The backup battery can be replaced without turning off the unit. Make sure that the board
does not short-circuit and that the soldering iron is not connected to main power while sol-
dering.
• Read out the exposure counter, refer to the section "P16 - Show the exposure counter".
• Read out the mAs limit, refer to the section "P15 - upper mAs limit".
• Read out the kV step and limit, refer to the section "P14 - Number of kV steps and upper
kV limit".
• Loosen the screws to the system upper cover and remove it.
• Loosen the screws and remove the protection plate.
• Locate the battery, refer to the wiring diagram, page 110.
• To avoid damage to components or assemblies, ensure compliance with ESD
guidelines.
• Remove the battery jumper.
• Desolder the battery and connect the new battery with the soldering iron.
• Reattach the battery jumper.
• Reattach the protection plate.
• Switch off the unit for 20 s.
Fig. 1
Backup
battery
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