— 2 —
BLOCK DIAGRAM
CPU
MSM 6755B-17
LSI2
Keyboard
Buttons
LCD
LCD Driver
SED1278F0A
LSI3
Reset IC
IC1
Oscillator
X1, Q1
Power Supply Circuit
Q201 ~ Q203, Q208, D205
Power Amp.
TA8248K
IC201
Filter (L)
Q206
Filter (R)
Q205
Output
VC
VCC DVDD
APO
DC + 9V IN
DB4 ~ DB7
MIDI IN
MIDI OUT
COM1 ~ COM16
SEG1 ~ SEG40
RS
R/W
E
KO8 ~
KO12
KI0 ~ KI6
KO0 ~ KO7
MD0 ~ MD7
MA0 ~ MA18
ROM(2M-bit)
LC372100PM-
G48
LSI1
Summary of Contents for CTK-501
Page 11: ...9 PRINTED CIRCUIT BOARDS Main PCB JCM443 MA1M Top View Bottom View 5 2 1 3 4 8 9 6 7...
Page 12: ...11 SCHEMATIC DIAGRAMS Main PCB JCM443 MA1M 1 7 6 2 3 4 5 9 8...
Page 13: ...12 Sub PCB JCM443 MA2M...
Page 14: ...13 Console PCBs JCM443 CN1M CN2M...
Page 15: ...14 Keyboard PCBs JCM6112K KY1M KY2M...
Page 17: ...16 EXPLODED VIEW 13 13 16 17 18 19 20 21 15 22 23 R 1 R 2 2 4 3 1 6 5 8 7 9 14 10 12 11 R 3...
Page 21: ...MA0600571A...
