Casio CTK-731 Service Manual

— 11 —
LCD BACKLIGHT
When voltage CVDD is supplied, transistors Q501 and Q502 start oscillation.
From the oscillation voltage, transformer T501 generates about 600 V which is necessary for lighting the
backlight.
10 1
11
C502
(Bottom View)
NT-07
T501
CFL1
L501
LHL08TB101K
1
1
12
DG
CVDD
C104FA
C104M
2SD965R 2SD965R
C501
R501
4.7K
Q501
CP14
Q502
C516
1
12
23 32
2
HMBV26BG1W63N/AZG
DE0405-979SL180J2K
2
12
2
3
4
5
8
9
7
5

Casio CTK-731 Specifications

General

Brand	Casio
Model	CTK-731
Category	Electronic Keyboard
Language	English