Compal NBLB2, Service Manual

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NBLB2 Service Manual
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The power supply controls many functions and components. To determine if the
power supply is functioning properly, start with Procedure 1 and continue with the
other Procedures as instructed. The flowchart in Figure 6-2 gives a summary of the
process.
The procedures described in this section are:

Procedure 1: Power status check

Procedure 2: Adaptor / battery replacement

Procedure 3: Power supply connection check

Procedure 4: Diagnostic check

Procedure 5: Internal connection check
3.1 Procedure 1 Power Status Check
The following LEDs indicate the power supply status:
Battery LED
The power supply controller displays the power supply status through the Battery and
the POWER LEDs as listed in the tables below.

Table 2-1 Battery LED
Battery State LED colors Definition
Charging blue, blinking Battery charging with AC
blue, solid on Battery fully charged by AC
color off Battery abnormal: stop charging with AC
(Bad cell/ Overheated)
Discharging Amber, blinking
LED on for 1
second every 4
seconds Battery within low state: 12 minutes remaining
Amber, blinking
(LED on 1 second
every 2 seconds) Battery within critical low state: 3 minutes
remaining. The system is protected and cannot
be re-powered on without the AC power
connected.
Color off Battery not in low or critical low state; in
discharging state