Block Diagram (Handset) - Panasonic KX-TG7100BXS Service Manual

4.3.

Block Diagram (Handset)

SPEAKER
RECEIVER
MIC
CHARGE(+)
CHARGE
CHARGE
CIRCUIT
CONTACTS
Q4,Q5,Q9
R7
CHARGE(-)
D7
J1
SWITCHED
BATTERY
SUPPLY
TERMINAL
Q1 Q1
J2
LCD
LCD-BACK LIGHT
KEY-BACK LIGHT
Ringer LED
38
36
81
82
88
CHARGE
77
CHARGE DETECT
65
53
SCL
EEPROM
52
IC3
SDA
VBAT1
73
DC/DC-SWITCH
69
2.5V
3.3V
74
2.5V
Q3
1.8V
75
1.8V
Q2
RS
24
98
RESET
CS 2
SI
22
SCL 23
1
96
54
KX-TG7100BXS/KX-TG7100BXT/KX-TGA710CXS/KX-TGA710CXT
Speech
Decoding
D/A
Speech
Encoding
A/D
ADPCM
Codec
Analog
Filter
Front
End
DSP
CPU
BBIC
IC1
11
RXDA
9
Burst
Decoding
TXDA
8
Burst
Encoding
10 RSSI
4 SYDA
RF
5
SYEN
Interface
3 SYCL
BMC
XTAL
13 X1
11
ON SWITCH
76
25,47,97,100 ROWS
6,7,43,44,45,95
COLUMNS
KX-TGA710 BLOCK DIAGRAM (HANDSET)
RF
Module
IC4
10.368
MHz
BATTERY
KEYPAD