Panasonic KX-TA308 Service Manual page 3

CO1
CO2
CO3
PAG
BGM
BELL
AMP
POWER unit
AC input
CALL ID CARD
IC130
DTMF
Generator
IC120
DISA DTMF
Receiver 1
IC121
DISA DTMF
Receiver 2
BELL signal
AC80V
+26V
+5.8V
IC205
CO G/A
IC500
IC501
IC502
IC104
DTMF
Receiver 1
CROSS
IC105
POINT
DTMF
Receiver 2
IC100
CPU
16bit
IC111
CLOCK
24MHz
RS232C
DOORPHONE/DOOR OPENER CARD
3 CO/8 EXT (HYBRID) CARD
IC305
EXT G/A
T301
PULSE
TRANS-
FORMER
IC304
4bit
CPU
X300
CLOCK
4MHz
IC101 IC102
ROM RAM
4M 1M
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
EXT8