Frame Troubleshooting - GE B30 Technical Reference Manual

B30 Patient Monitor
2

Frame troubleshooting

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