Read Panasonic KX-T7730CA Service Manual online
5
KX-T7730CA
4 Technical Descriptions
4.1.
Block Diagram
USD PRIVING
CIRCUIT
(Q105~108)
H
L
T
R
T2
POWER
REGULATOR
(IC7)
SIGNAL
TRANSMITTING
CIRCUIT(Q101)
SIGNAL
RECEIVING
CIRCUIT(Q102)
FF
(IC2)
RESET IC
(IC9)
Vcc
CPU
(IC1)
X1
DRIVING
CIRCUIT
(Q103,Q104)
LED
LCD
KEY
LCD Module
RINGER
DTMF
SPEAKER
MIC
HEADSET
HANDSET
SP-PHONE
(IC3)
Handset Amp
(Q5,Q8)
Pre Amp
(Q4)
HYBRID
CIRCUIT
(Q3)
DIODE
BRIDGE
(D1)
DIODE
BRIDGE
(D2)
T1
KX-T7730CA
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