Block Diagram (Base Unit) - Panasonic KX-TG2220BXB Service Manual

15 BLOCK DIAGRAM (BASE UNIT)

BMC CLOCK
Key matrix
RF_UNIT
87
KIN1
86
KIN2
85
KIN3
84
KIN4
83
Key Scan
KIN5
82
KIN6
57
VMOD
62
RSTH
CLK 25
DATA 23
24
LE
RXEN 63
TXEN 64
RX GAIN 58
SHCTRL 65
48
RSSI
RXDATA (RXI)
66
VRF
IC202
OPERATIONAL P.C.BOARD
Q260
BUF
8.192MHz
X200
LOUT0
DCIN0
CIDIP0
CIDIN0
RESET
IC201
DTMF
POWER_DOWN
DSP
Analog
SW
VCCPA
VCC
EEPROM
Q1
SIDE_TONE
_CIRCUIT
Q50
RECEIVE
AMP
34
2
RLY
35
27
BELL
40
39
26
RESET
55
IC332, Q102
IC100
14
VCC
41
VCCA
32
MIP
MIN
SPP
SPN
Q4
TR_RLY
D4
TEL_JACK
Q7
1 4
INUSE
2
3
DETECT
Q6
BELL_
DETECT
IC331
Q108
POWER DOWN
REGULATOR
3.6V
REGULATOR
IC101
3.3V
REGULATOR
CHARGE_CONTACT
Q151
CHARGE
DETECT
CHARGE
Q150
CONTROL
KX-TG2220BXB/F/S BLOCK DIAGRAM (BASE UNIT)
1 TIP
2 RING
3 DC+
4
DC-
1
2