Toshiba F Series, Service Manual

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4.2.8. The battery cannot be recharged. (When battery-powered, the unit plays back only for a short time.)
Conduct a hearing of how the owner has been using the unit. If he or she is suspected of having repeated at least 500
recharge-discharge operations, the battery may have come to the end of its service life. Therefore replace the lithium-ion
battery.
The playback time (16 hours) of the battery as specified in the catalogs is applicable when the WMA format sound is
played back. Sound in the MP3 format can also be played back for almost the same amount of time. However, sound in
the WAV format can be played back for about four hours only. Explain this as well to the owner.
In all other cases, take the steps described below to conduct a repair.
N
Y
Y
N
Set the BATTERY switch to "ON." (See
"Charging the built-in Battery" in the
Owner's Manual.)
Connect the AC adaptor to the unit.
Check if the LCD displays the charging
icon (a picture of a power plug).
Does the unit
display the charging
icon (red)?
If the unit displays the charging icon, the
owner may have set the BATTERY switch
to "OFF" or have the battery discharged.
Therefore leave (recharge) the battery for at
least four hours as it is, then confirm that
the charging icon turns green (indicating
that the recharge is complete).
An unlit charging icon represents that the recharge is
not in process (or the LCD may be out of order).
Replace the AC cord set, AC adaptor, lithium-ion
battery, main PCB assembly, LCD, or LCD backlight
unit.
Explain the BATTERY switch and the
recharge method to the owner.
Does the recharge
finish after four
hours?
If the recharge does not finish (the charging
icon does not turn green), replace either the
lithium-ion battery or main PCB assembly.