Mediana YM6000, Руководство по обслуживанию

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48 Troubleshooting
YM6000 Service Manual
Troubleshooting Guide
Problems with the monitor are separated into the categories for further
troubleshooting instructions.
Note: Taking the recommended actions discussed in this section will correct the
majority of problems you will encounter. However, problems not covered here
can be resolved by calling Mediana Technical Service Department.
Power
Power problems are related to AC and/or Battery as follows. If the action requires
replacement of the components, refer to Disassembly Guide section.
CAUTION: Electrical shock hazard. Disconnect a power cord from the monitor
before attempting to open or disassemble the monitor.
1. When AC power cord is connected to the monitor, AC indicator on the front
panel is not lit.
1 ‐ 1 Ensure power cord is plugged into the appropriate AC outlet of voltage and
frequency.
1 ‐ 2 Replace the power supply assembly.
1 ‐ 3 Ensure the key wire is connected to the key board assembly and the main
board. If the connection is good, replace the key board assembly.
2. The monitor fails to power ‐ up when the power button is pressed.
2 ‐ 1 Ensure power cord is plugged into operational AC outlet of the appropriate
voltage and frequency. Ensure AC power indicator is lit. If indicator is not lit,
replace the power supply assembly.
2 ‐ 2 Check fuses located on the power supply assembly above AC inlet receptacle.
Replace fuses if necessary.
2 ‐ 3 Inside monitor, check the main cable and ensure that it is connected to the
main board and the power supply assembly.
2 ‐ 4 Ensure the key board assembly is connected to the main board. If connection
is good, replace the key board assembly.
2 ‐ 5 If the problem persists, replace the main board.
3. The monitor turns on, then sounds an alarm and shuts off and no error code is
displayed.
3 ‐ 1 Replace the main board.