Casio CTK-611 Service Manual

— 11 —
3) Equipment connection/Procedure
Vop voltage setting
Output
Set Voltmeter
TP2
Input
Connection
Input
Point
Input
Signal
Adjust
Output
Connection
Output
Point
Adjust for
VR410
Voltmeter TP2
Adjust for 4.3 to 4.4 V read-
ing on voltmeter under the
temparature 20 to 25 °C.
Make fine adjustment accord-
ing to the following instruc-
tion.
51.74°
LCD
Eye
Watching the LCD at a 51.74° angle to the horizontal, adjust Vop
voltage so that unenergized segments are seen dimly.
ADJUSTMENT
DISPLAY PCB
1) Items to be adjusted:
2) Adjustment and Test Point Locations
(TOP VIEW)
VR401
TP2
Item Measuring Instrument
Vop voltage setting Voltmeter
MC-Service

Casio CTK-611 Specifications

General

Brand	Casio
Model	CTK-611
Category	Electronic Keyboard
Language	English