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CTK-220L manual LED PCB KDM445-LD2M, Pcb Name
Models:
CTK-220L
1
14
19
19
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19 pages
57.06 Kb
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Specifications
Parts list
Block Diagram
POWER AMPLIFIER IC301 LA4598
Page 14
Image 14
LED PCB
KDM445-LD2M
PCB NAME
— 12 —
Page 13
Page 15
Page 14
Image 14
Page 13
Page 15
Contents
20 SONG BANK KEYBOARD
CTK-220L
ELECTRONIC KEYBOARD
MULTI FUNCTION DISPLAY
Block Diagram
CONTENTS
Specifications
Schematic Diagrams
ELECTRICAL
SPECIFICATIONS
GENERAL
Power Supply Circuit
BLOCK DIAGRAM
Reset IC IC1
IC301
LED MATRIX
CIRCUIT DESCRIPTION
KEY MATRIX
NOMENCLATURE OF KEYS
In/Out
CPU LSI1 MSM6755B-13
Pin No
Function
LED DRIVING
POWER AMPLIFIER IC301 LA4598
FILTER BLOCK
MWEB
MAJOR WAVEFORMS
Main PCB JCM446-MA1M
PRINTED CIRCUIT BOARDS
Sub PCB KDM445-MA2M
Top view
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
LED PCB KDM445-LD2M
PCB NAME
PCB NAME
LED PCB KDM446-LD3M
LED PCB KDM445-LD4M
PCB NAME
R-3 R-4
EXPLODED VIEW
R-1 R-2
PARTS LIST
CTK-220L
Parts Name
Specification
Code No
Main PCB
Nov MA1100761A
