BLOCK DIAGRAM
Phone/Output |
7 seg. LED
LED Latch | IC2, IC3 |
|
|
MD0 ~ MD7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amp. |
|
|
|
|
— 2 |
|
|
|
| IC301 |
|
|
|
|
|
|
|
| LA4598 |
|
| Filter |
| |
— |
|
|
|
|
|
|
| ||
|
|
|
|
|
|
| Q305 |
| |
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
DC+9 V IN |
|
| Power Supply Circuit |
| APO | ||||
|
|
| Q301 ~ Q304 |
| |||||
|
|
|
|
|
| ||||
|
|
|
| D334, D336 |
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CPU
LSI1
MSM
KO8 ~ KO11
KI0 ~ KI7
KO0 ~ KO7
LX0 ~ LED Driver LX7
Q5 ~ Q8
LY1 ~ | LED Driver |
LY7 |
|
Q1 ~ Q4
Buttons
Illuminant
Keyboard
PG
X1, Q11
Reset IC
IC1