HTC H1915 Panduan Servis - Halaman 24

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5.6 Backup Battery Inspection

Description:

* HB backup battery is a chargeable part (it is different from old models).

* This SA will guide you how to judge backup battery.

HTC confidential

Step 1. Check remaining capacity

Turn on HB unit and check on backup battery

status.

There will be one of three results.

3.1.1 100% capacity

Go to Step 4

3.1.2 Less than 100% capacity

Go to step 2

C. Can't boot.

Go to step 2

Step 2. Charge batteries

Make sure the main battery is in the unit, and

then

plug in AC adapter for charging.

1. Normally It takes about 1 - 5 minutes for the

backup battery to reach to 100% capacity.

And then go to Step 3.

In case the returned unit is left unused for a

long time, the power may drain away and the

unit can't power on or backup battery bar is

all empty. As a result of B, the device should

be recharged for an 1 hour.

If battery display is 100%, go to step 3

If it is NG (backup battery can't be charged or 100%

capacity does not reach to 100% in 1 hour), the backup

battery has to be replaced.

Replace the M/B if new backup battery still does not

work.

Step 3. Check backup battery function

1. Don't turn off the device. (Keep the unit power on

with the power management screen)

Remove the AC adapter from the device.

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