GE b30, Technical Reference Manual

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B30 Patient Monitor
4-4
Document no
.
2044677-001
2 Frame troubleshooting
Problem Cause What to do
Monitor is not starting. 1. The batteries are empty.
2. Fuses may be blown.
3. If power cord connected, AC/DC
unit may be faulty.
4. If AC/DC unit is working, the
DC/DC board may be faulty.
5. On/Stby key may be faulty.
1. Connect the power cord.
2. Replace fuses.
3. Replace the AC/DC power unit.
4. Replace the DC/DC unit.
5. Replace the command board
panel keyboard foil.
Monitor is not starting. 1. The connection between DC/DC
board and CPU board may be
faulty.
2. Faulty CPU board.
1. Check the connector and the
interconnection board.
2. Replace the CPU board.
The monitor starts (alarm leds
are lit and a beep is heard), but
the display remains black. 1. The LCD display cables are loose.
2. The backlights are not lit.
1. Check the LCD display connection
board connectors.
2. Check backlight connector. Check
inverter cable.
Backlights may be faulty. Replace the
backlights.
Backlight Inverter may be faulty.
Replace the Inverter board.
Display and monitor operating
but alarm leds not illuminating
in start-up. 1. Loose connectors.
2. Ribbon cable faulty.
3. CPU not working.
1. Check all connectors from CPU to
led board.
2. Replace ribbon cable.
3. Replace CPU.
Display and monitor operating
but no audible beep in start-up. 1. Loudspeaker connector or wires
loose or faulty.
1. Check loudspeaker connector and
wires.
Display is too dim. 1. Incorrect brightness adjustment.
2. Backlight faulty.
3. Backlight inverter faulty. 1. Adjust display brightness higher.
2. Replace backlight.
3. Replace backlight inverter.
Stripes or white areas on screen. 1. Loose faulty display connection
flexboard connectors in CPU and
display.
1. Check display connection
flexboard connectors in CPU and
display.
Module data disappears from
the screen. ‘Module power
supply overload’ message. Parameter module current (in
module bus) too high. Detach and change parameter
module.
Module data disappears. 1. Module bus voltage or signals
path broken.
1. DC/DC board module power
section may be faulty. Replace
the DC/DC board.
2. Replace module bus flex board.
‘Battery failure’ message on the
screen. 1. Problem in communication
between battery and DC/DC
board.
2. Battery too old or defected.
3. DC/DC board may be faulty.
1. Replace battery.
2. Replace battery.
3. Replace the DC/DC board.