Read Panasonic KX-T7440CB / KX-T7440C Service Manual online
−
7
−
KX-T7440C/KX-T7440C-B
BLOCK DIAGRAM
DATA
COMMUNI-
CATION
IC2,Q43,
Q44
T1
TEL JACK
JK1
IC1
IC4
＋
5V
(V1)
＋
5V
(V2)
POWER REGULATOR
D1
＋ ∼
− ∼
TX
RX
PBX
IC3
CPU
4MHz
×
1
KEY
RED
GREEN
22
Ω
120
Ω
RESET
＋
5V
LED
L[0]
∼
L[13]
K[0]
∼
K[8]
RED
GREEN
22
Ω
120
Ω
LED
L[14]
∼
L[27]
C[0]
∼
L[4]
C[0]
∼
L[7]
Click on the first or last page to see other KX-T7440CB / KX-T7440C service manuals if exist.