Read Panasonic KX-TGH210UAB / KX-TGH212UAB / KX-TGH220UAB / KX-TGHA20RUB Service Manual online
14
KX-TGH210UAB/KX-TGH212UAB/KX-TGH220UAB/KX-TGHA20RUB
4.5.
Block Diagram (Handset)
QSPI
FLASH MEMORY
IC4
Re
s
et
Re
s
et
Pin 71
SPEAKER
RECEIVER
MIC
CHARGE
CIRCUIT
Q2, Q
3
, Q4,
Q
2
,
Q
3
,
Q
4
,
Q9, R8Q
9
,
R
8
CHARGE
CONTACTS
CHARGE(+)
CHARGE_CTRL
CHARGE_DET
EEPROM
SCL
SDA
BATTERY
TERMINAL
R45
VBAT
BATT-
1.8 V
Q1
1.8 V
LCD
CD
RESET
CS
SID
SCL
CPU
Analog
Front
End
D/A
A/D
3
5
3
7
21
22
17
18
3
4
33
66
67
3
2
24
44
45
7
3
6
3
64
77
76
ADPCM
Codec
Filter
DSP
Speech
Decoding
Speech
Encoding
BMC
Burst
Decoding
ANT1
Burst
Encoding
RF
PLL
MOD/DEMOD
1
2
87
86
RXn
ANT1
RXp
TXp
TXn
7
8
XTAL
X1
10.368
MHz
BATTERY
46
ON SWITCH
KEYPAD
Charge
Pump
ROWS
COLUMNS
CP3V
CP4V
57, 58, 59, 60
11, 12, 1
3
, 14, 55
47, 48, 51, 5
3
QSPI-IO 0-
3
BBIC
IC1
IC3
65
KEY LED
61
LDO_CTRL
1.8 V
CP3V
QSPI
Control
5 QSPI-SCK
4 QSPI-CS
KX-TGHA20 BLOCK DIA
GRAM (H
a
nd
s
et)
CP 2.8V
LCD_LED0
LCD_LED1
NR LED
CP4V
CP3V
1.8 V
TGHA20 only
Po
w
e
r F
a
iler Mode
P
o
w
e
r Supply SW
Q10,Q11,12,R10,R
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