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3-3. Flash operation and recharge operation
1. General
When a flash is used and abnormal, check.
2. Conditions
• Set QV-3EX in "REC" mode.
• Normal Recording mode.
• Apply 6.0 ± 0.1 V voltage on DC in jack.
3. Preparation
(1) AC adaptor or stabilizer.
(2) Digital oscilloscope.
(2) Ammeter.
(3) TV (With video terminal).
(4) Video cable.
4. Adjustment and checking
(1) Shoot a picture with flash OFF. (Make sure there is no flash)
(2) Shoot a picture with flash ON and make sure it flashes once.
(3) Shoot in red eye reduction mode and make sure it flashes twice.
(4) Connect QV-3000EX and TV with video cable and make sure that the pictures taken in steps (2) and (3)
are not whitish, dark or erroneously colored.
(5) Make sure that the charging current is less than 1.3 A.
(6) Confirm the waveform at flashing with a digital oscilloscope and compare it with the waveform shown
on the next page.
5. Notes
(1) Excuete in a dark room.
(2) Shoot a colorful object as much as possible.
Bring the probe closer
Digital oscilloscope
to the camera
: 1.0 µsec/DIV
TIME
VOLTS : 1 V/DIV(AC mode)
Flash lens surface
QV-3EX
— 21 —
Video input cable
TV monitor
(with a video input terminal)
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