— 2 —
BLOCK DIAGRAM
CPU
MSM 6755C-17
LSI1
Keyboard
Buttons
LCD
LCD Driver
KS0066U-10B
LSI3
Reset IC
IC1
Oscillator
X1, Q1
Power Supply Circuit
Q101 ~ Q103, D104
Power Amp.
LA4598
IC101
Filter
Q105
Speaker
(L)
Speaker
(R)
Phones/Output
VC
AVDD
VCC DVDD
APO
MD0 ~ MD7
MA0 ~ MA17
DC + 9 V IN
DB4 ~ DB7
COM1 ~ COM16
SEG1 ~ SEG40
RS
R/W
E
KO8 ~
KO12
KI0 ~ KI6
KO0 ~ KO7
ROM(2M-bit)
UM23C2101M
7384/Q
LSI2
Power Switch
Содержание CTK-431
Страница 11: ...9 3 2 7 6 4 5 1 Top View PRINTED CIRCUIT BOARDS Main PCB JCM444 MA1M Bottom View...
Страница 12: ...10 SCHEMATIC DIAGRAMS Main PCB JCM444 MA1M 1 5 4 2 3 7 6...
Страница 13: ...11 Sub PCBs JCM444 MA2M MA3M...
Страница 14: ...12 Keyboard PCBs JCM4911K KY1M KY2M...
Страница 16: ...14 EXPLODED VIEW 18 17 19 22 6 R 1 5 12 7 10 9 11 13 14 15 16 8 1 2 23 4 21 20 4 R 3 R 5 3 R 4 R 2...