Sony handycam CCD-TR91 Operating Manual page 50

Warning Indicators !
if indicators flash in the viewfinder and in the display window or a caution lamp on the camcorder
flashes, check the following:
÷
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.,'_',_ _-.
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[-1-] The battery is weak or dead.
Slow flashing: The battery is weak.
Fast flashing: The battery is dead.
] The tape is near the end.
The flashing is slow.
_1 The tape has run out.
The flashing becomes rapid.
] No tape has been inserted.
_ he tab on the tape is out (red),
_-_ Moisture condensation has occurred. (p. 35)
[-_ The video heads may be contaminated. (p, 36)
] Some other trouble has occurred.
Disconnect the power source and contact your Sony dealer or local authorized facility.
] The lithium battery is weak or is not installed. (p. 11)
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50