Sony HMZ-T3W Reference Manual page 46

Warning by the indicators
The indicators on the battery unit and processor unit alert unusual conditions of
the system.
Battery unit
 (power)
indicator
(orange)
Processor unit
POWER
indicator
(red)
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Indication
Repeats flashing twice
every 3 seconds
Repeats flashing three
times every 3 seconds
Repeats flashing five
times every 3 seconds
Repeats flashing twice
every 3 seconds
Repeats flashing three
times every 3 seconds
Error/Action
Contact your Sony dealer or local
authorized Sony service center. The
battery unit may be damaged.
Temperature error in the battery unit.
Leave the unit for a while. Flashing
stops when the unit cools off.
Use the battery unit in a well-
ventilated location to prevent
blocking of the ventilation slots.
Battery error.
Stop using the system and contact
your Sony dealer or local authorized
Sony service center.
Contact your Sony dealer or local
authorized Sony service center.
The processor unit may be damaged.
Temperature error in the processor
unit.
Leave the unit for a while. Flashing
stops when the unit cools off.
Use the processor unit in a well-
ventilated location to prevent
blocking the ventilation slots.