Specifications

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3-5. VCOM DC adjustment
1. General
Perform these adjustments when you replace LCD module or MAIN-PCB.
2. Preparation
(1) AC adaptor or stabilizer.
(2) Photo sensor / Photo sensor amp (C2719)
(3) Digital oscilloscope.
3. Adjustment and checking
(1) Turn the power on while pressing DISP and MENU keys simultaneously. (TEST MODE)
(2) Push FLASH ➜ FLASH ➜ MENU keys in order rapidly. (TEST MODE 2)
(3) Select VCOM ADJUST and press the shutter release button about half way.
(4) Monitoring the Photo Sensor Amp output via B.P.F., move the control button up or down so that the
ripple component is minimum.
B.P.F
Photo Sensor Amp
C2719
LCD
Photo diode
S1153
Minimize the
ripple components
QV-4000
AC meter
VCOM DC ADJ
0X00000840