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M2540-92000-01 A M2540 Ultrasound System Field Service Manual Page 135
Troubleshooting: PC Boots, but Monitor is Blank
5. Reset the PC power selector switch to 120 V, if the switch was moved in step 3.
PC Boots, but
Monitor is
Blank
If the M2540A’s internal PC starts, but the monitor stays black, proceed as follows:
1. Connect a jumper between chassis ground and the PWR DOWN pin on the BPAP board.
• If the monitor now powers up, check the token ring cable.
• If the monitor remains black, continue with the following steps.
2. Shut down the PC.
3. Unplug the PC from the top outlet on the power supply.
4. Move the monitor’s power plug to the PC power outlet on the power supply.
• If the monitor powers up, the power supply is bad. Replace it. See “Power Supply” on
page 154.
• If the monitor does not power up, it is faulty. Replace it. See “Replacing the Monitor” on
page 157.
PC Boots, But
Peripherals
Don’t Work
If the M2540A’s internal PC starts, and the monitor functions normally, but one or more
peripheral devices don’t work, proceed as follows:
1. Run the RST and other system checks, and check the device’s power cord connections.
2. Shut down the PC.
3. Unplug the PC from the power supply.
4. Move the malfunctioning device’s power plug to the PC power outlet on the power supply.
• If the device powers up, the power supply is bad. Replace it. See “Power Supply” on
page 154.
• If the device does not power up, try replacing its power cord. If the device still does not
power up, it is faulty. Replace the device.