DigiPos PowerPoS, Техническое руководство

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DigiPoS PowerPoS Technical Manual
Power Up Test Sequence
During the initial power up phase, the system board checks the internal operating
voltages. By observing certain conditions, it is possible to gain an initial indication of the
power status of the system. By following the observations below, initial fault diagnosis may
be undertaken.
•
Check audible power up beep from system.
Caution is to be taken here as many people mistake the beep emitted by bar code
scanners to be the system beep. To be 100% certain, power down the system,
remove the bar code scanner and then re-test.
•
Check the two cooling fans in system are working correctly.
This can be done without removing the case as the airflow can be felt by putting your hand
near the ventilation ports.
•
Check external power supply fan is operative.
As stated before, the fan will only rotate when the DigiPoS is also switched on.
•
Check HDD spins up to constant RPM.
•
On the front panel, check the green LED is lit.
•
On the front panel, check red LED is flashing as the HDD is accessed.
•
On the internal front panel of the DigiPoS PowerPoS check LED 2 3 & 4 are lit.
Please note that the fourth LED will be lit if you are in Diagnostic mode.
•
On the external PSU of DigiPoS, the power switch is illuminated.
•
The memory check completes, without error before the operating system call
is initiated.
At this point the system should exit the primary boot stage and allow the system to be
controlled by the user software such as Windows or Linux.
If this does not occur, record at which point the power up sequence fails and proceed to
the next section.
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