Casio QV-770, Service Manual, Page: 7 / 46

— 5 —
✽
Gray paper should be larger than 1.5 m (H)
×
2.0 m (W).
1-4. Strobe check
Checking if there is a false operation triggered by a distorted waveform when using strobe.
• Set strobe adjustment.
• Input DC in 6.0
±
0.1 V.
(1) Set QV-770 to “REC” mode.
(2) Monitor the trigger waveform on digital oscilloscope and check the display.
(3) Automatically recharged after shooting picture.
Make sure that the DC in 6.0 V current does not exceed 1.2 A.
(4) Set QV-770 to “PLAY” mode and check the display.
Should not be white or too dark.
✽
If it is NG, make sure the wiring of strobe circuit.
Strobe icon
LCD
1 meter
Gray paper
DC6.0
±
0.1V
Voltage
Regulator
A
Ammeter
Digital oscilloscope
TIME: 1.0
µ
sec/DIV
VOLTS: 1V/DIV (AC)
• Put oscilloscope probe on Camera unit.
• Earth of the probe should be hooked as shown above.