Block Diagram (Handset); Charge - Panasonic KX-TG2220BXB Service Manual

17 BLOCK DIAGRAM (HANDSET)

D206~D209
2
CHARGE
BATT1
1
BATT2
D214
D216
Q205
RESET

CHARGE

RINGER
MIC
SPEAKER
CN203
HEAD SET
JACK
DC-DC
IC204
CONVERTER
3.0V
REG
Q212, L210
IC203
P217, C318
3.0V
BATT
REG
IC205
POWER
DOWN
Q207
DET
TO LCD UNIT
(CALLER ID)
KX-TG2220BXB / KX-TG2220BXF / KX-TG2220BXS / KX-TGA226BXB / KX-TGA226BXF / KX-TGA226BXS
X201 Q204
8.192MHz OSC
BUFFER AMP
OSC
XIN
XOUT
51 52
14
VCC
55
PDN
54
DSP
RSTN
IC201
74
CHG
29
SPOUTP, SPOUTN
46 47
MIP, MIN
34
LOUT0
44
HSMIP
23
HSSPOUT
36
LIN0
16~22 27
LCD_∗
60 59
IC202 KEY
EEPROM
PAD
KX-TGA226BXB/F/S BLOCK DIAGRAM (HANDSET)
53
BMCCLK
VRF
TXEN
64
SHCTRL
65
TXO (VMOD)
57
RSTH
62
RSSI
48
RF BLOCK
PCTRL
100
RXEN
63
RXI (RXDATA)
66
RX GAIN
58
SIO_DO
23
SIO_LE
24
SIO_CLK
25
KEY
LEDS