8 Troubleshooting
108
Checks Before Opening the Instrument
You can isolate many problems by observing indicators on the instrument before it is necessary to
open the instrument.
Checks with the Instrument Switched On, AC Connected
The green power LED lights for about 1.5 seconds after switching on, and then goes out, and remains
unlit doing normal operation. The location of the green LED is shown in the following photograph:
Checks with the Instrument switched On, AC Connected, with Battery
This section applies to monitors with FM20/FM30 battery option #E25 only). When the monitor is
connected to AC power via the M8023A External Power Supply, the battery LED is either green or
yellow. Green means battery power is >90%. Yellow means the battery is charging (battery power
<90%).
Individual Parameter INOPs
If you see any of the following parameter INOPs:
try exchanging the relevant component (transducer, sensor, patient module, or board) with a known
good replacement, following the procedures in “Repair and Disassembly” on page 139. Check to see if
the INOP disappears, and that you can measure the parameter in question normally. If the INOP
persists, swap back the original component and continue troubleshooting as directed in this chapter.
If you see the
Bus Master Malfunc INOP following a monitor software upgrade, it is likely that the
firmware in the bus master board is incompatible with the new software. Check the firmware revision,
and upgrade this if necessary with the Support Tool. Contact Philips support for more information
regarding software and firmware revisions.
DFHR1 Equip Malf IUP Equip Malf
DFHR2 Equip Malf NBP Equip Malf
DFHR3 Equip Malf Bus Master Malfunc
MECG Equip Malf SpO₂ Equip Malf
FetRec Equip Malf SpO₂ Sensor Malf
FHR1 Equip Malf Toco Equip Malf
FHR2 Equip Malf
FHR3 Equip Malf
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