— 9 —
Output
Set
Voltmeter
CP3-CP4
3) Equipment connection/Procedure
Vop voltage setting
Input
Connection
Input
Point
Input
Signal
Adjust
Output
Connection
Output
Point
Adjust for
VR1
Voltmeter
CP3-CP4 Adjust for 3.90 ~ 4.00V read-
ing on voltmeter under the
temparature 20 ~ 25
°
C.
Make fine adjustment accord-
ing to the following instruc-
tion.
Watching the LCD at a 50
°
angle to the horizontal, adjust Vop
voltage so that unenergized segments are seen dimly.
50
°
LCD
Eye
Summary of Contents for CTK-541
Page 1: ...ELECTRONIC KEYBOARD CTK 541 JULY 1999 CTK 541 E E E...
Page 14: ...12 Sub PCB JCM453 MA2M Top View Bottom View Sub PCB JCM453 MA2M...
Page 15: ...13 Console PCB JCM453 CN1 Top View Bottom View Console PCB JCM453 CN1...
Page 17: ...15 SCHEMATIC DIAGRAMS Main PCB JCM456 MA1M 1 6 7 2 3 4 5 9 8...
Page 18: ...16 Sub PCB KDM453 MA2M...
Page 19: ...17 Console PCBs JCM453 CN1...
