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CTK-220L manual Sub PCBs KDM445-MA2M/MA3M
Models:
CTK-220L
1
11
19
19
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19 pages
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Specifications
Parts list
Block Diagram
POWER AMPLIFIER IC301 LA4598
Page 11
Image 11
Sub PCBs
KDM445-MA2M/MA3M
— 9 —
Page 10
Page 12
Page 11
Image 11
Page 10
Page 12
Contents
MULTI FUNCTION DISPLAY
CTK-220L
ELECTRONIC KEYBOARD
20 SONG BANK KEYBOARD
Schematic Diagrams
CONTENTS
Specifications
Block Diagram
ELECTRICAL
SPECIFICATIONS
GENERAL
IC301
BLOCK DIAGRAM
Reset IC IC1
Power Supply Circuit
NOMENCLATURE OF KEYS
CIRCUIT DESCRIPTION
KEY MATRIX
LED MATRIX
Function
CPU LSI1 MSM6755B-13
Pin No
In/Out
MWEB
POWER AMPLIFIER IC301 LA4598
FILTER BLOCK
LED DRIVING
MAJOR WAVEFORMS
Top view
PRINTED CIRCUIT BOARDS
Sub PCB KDM445-MA2M
Main PCB JCM446-MA1M
NO USE FOR CTK-330
SCHEMATIC DIAGRAMS
Main PCB JCM446-MA1M
NO USE FOR CTK-330
Sub PCBs KDM445-MA2M/MA3M
Keyboard PCBs KDM4910K-KY1M/KY2M
LED PCB KDM446-LD1M
PCB NAME
LED PCB KDM445-LD2M
PCB NAME
LED PCB KDM446-LD3M
LED PCB KDM445-LD4M
PCB NAME
R-3 R-4
EXPLODED VIEW
R-1 R-2
CTK-220L
PARTS LIST
Main PCB
Specification
Code No
Parts Name
Nov MA1100761A
