Datex-Ohmeda Anesthesia Delivery Unit S/5, Technical Reference Manual

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Datex-Ohmeda ADU
D-42
Document No. 8502856
Battery failure troubleshooting guide
•
when the ADU gives intermittent ‘Battery failure’ message on the main screen the most likely
cause is not an actual malfunction in the batteries or on the battery charger board. This
document will describe how you can test and determine the root cause of battery problems,
with the help of service menus.
•
Enter the Diagnostics/ Central Electronics/ Battery menu (see figure next page)
•
Try to repeat the problem by:
1.
Starting Manual - Battery Test from the menu
2. or with Discharge -Recharge Cycling Test
3. or disconnecting/connecting mains
•
Write down the data values while performing troubleshooting
•
Check error conditions from Error History and compare the HW
errors to Typical Error Messages
•
Verify/compare the results to Typical Diagnostics Values to determine if the cause is due to
intermittent battery failures
EEPROM
error
N/A NOTE MESSAGE “EEPROM
Error” will stay for 60
seconds after startup.
Replace CPU board. N/A
SRAM error N/A NOTE MESSAGE “SRAM
Error” will stay for 60
seconds after start-up.
Replace Battery SRAM.
Replace CPU board. N/A
Display error Display controller
fails. Either the card
is loose or broken.
Display failure will be
reported when the start-up
routine cannot copy data
to the GSP-board
memories. More correct
would be Display memory
failure.
Startup screen will stay
permanently and the
system cannot be
operated.
Replace the display
controller board B-Disp.
N/A
Message
in normal
screen
Message in
diagnostic page
Caused by Recommended action Err
Log.