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Delphi Display Systems IMS-9000 Manuel d'utilisateur Page 10

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Confidential Document: Page 10
Do not copy or distribute without written permission from
Delphi Display Systems, Inc. Copyright ©2006. [Unpublished Work]. All rights reserved.
Figure 10 - OCS Self Test Screen
A description of each test performed is listed in the table below.
Test Description Component(s) Tested
Ambient
Temperature
The Ambient Temperature test measures the internal
air temperature of the OCS and verifies that it is within
acceptable limits.
Internal Temperature
Sensor
CPU
Temperature
The CPU Temperature test measures the
microprocessor temperature and verifies that it is within
acceptable limits.
CPU Temperature Sensor
CPU Thermo.
Temp Low
The CPU Thermo. Temp Low test measures the low
temperature threshold programmed into the OCS
hardware. The low temperature threshold defines the
point when the External Fan is activated (if applicable).
High temperature control
circuits
CPU Thermo.
Temp High
The CPU Thermo. Temp High test measures the high
temperature threshold programmed into the OCS
hardware. The high temperature threshold defines the
point at which the system shuts down due to high
temperatures.
High temperature control
circuits
Internal Fan
Current
The Internal Fan Current test measures the internal fan
current and verifies that it is within acceptable limits.
Internal fans, fan control
circuits, fan power circuits
External Fan
Current
The External Fan Current test (if applicable) measures
the external fan current and verifies that it is within
acceptable limits. This test only applies when external
fans are used where ventilation is limited by the
mounting configuration (i.e. menu board mounts).
External fans and cabling,
control and power circuits
Heater Current The Heater Current test measures the internal heater
current and verifies that it is within acceptable limits.
Internal heater and
associated control circuits
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