Casio CTK-541 Service Manual

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BLOCK DIAGRAM
CPU
GT913F(T)
LSI1
Keyboard
Buttons
LCD
LCD Driver
KS0066U-10B
LSI3
Reset IC
UPD6379GR-E1
IC1
Oscillator
X1, Q1
Power Supply Circuit
Q201 ~ Q203, Q207, Q208, D205
Power Amp.
TA8248K
IC201
Filter (L)
Q206
Filter (R)
Q205
Phone/Output
VC VCC DVDD
AVDD
APO
DC + 9V IN
DB4 ~ DB7
MIDI IN
MIDI OUT
COM1 ~ COM16
SEG1 ~ SEG40
RS
R/W
E
KI0,KI1
FI8~FI10
FI0 ~ FI7
KC0 ~ KC7
MD0 ~ MD15
MA0 ~ MA19
ROM(8M-bit)
MSM538002E-
N8GS - KDR1
LSI2
Power Switch

Casio CTK-541 Specifications

General

Brand	Casio
Model	CTK-541
Category	Electronic Keyboard
Language	English