Led Indicator Lights; System Unit Front Panel Leds - HP 400 Series Servicing Manual

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2.3

LED Indicator Lights

Figure 2-8 shows the location of the front panel LEDs on the Series 400 system units.
The Power LED indicates that the power is on. The Service LED, when on, indicates
that the system is in SERVICE mode. The LEDs labeled 'A" through "H" indicate sys-
tem status. The Power LED and the LEDs labeled "A" through "D" are always visible.
You can view the other five LEDs by opening the door.
Figure 2-8. System Unit Front Panel LEDs
System Controls
2-9

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