Read Panasonic KX-TG6811CAB / KX-TG6811CAM / KX-TG6812CAB / KX-TG6821CAB / KX-TG6821CAM / KX-TG6822CAB / KX-TGA681RUB / KX-TGA681RUM Service Manual online
15
KX-TG6811CAB/KX-TG6811CAM/KX-TG6812CAB/KX-TG6821CAB/KX-TG6821CAM/KX-TG6822CAB/KX-TGA681RUB/KX-TGA681RUM
4.5.
Block Diagram (Handset)
QSPI
FLASH MEMOR
Y
IC4
SPEAKER
RECEIVER
MIC
CHARGE
P
o
w
e
r F
ailer Mode
P
o
w
er Supply SW
CIRCUIT
Q2, Q3, Q4,Q
2
,
Q
3
,
Q
4
,
Q9, R8Q
9
,
R
8
CHARGE
CONT
A
C
TS
CHARGE(+)
CHARGE_CTRL
BA
TTER
Y_ON
CHARGE_DET
EEPR
O
M
SCL
SD
A
BA
TTER
Y
TERMINAL
R45
VBA
T
BA
TT
-
1.8 V
Q1
1.8 V
CP
2.8
V
LCD
CD
RESET
CSB
SD
A
SCL
CPU
Analog
F
ront
End
D/A
A/D
35
37
21
22
17
18
34
33
66
67
32
24
73
63
64
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
XT
AL
X1
10.368
MHz
BA
TTER
Y
46
ON SWITCH
KEYP
AD
RO
W
S
COLUMNS
57, 58, 59, 60
1
1
, 12, 13, 14, 55
47, 48, 51, 53 QSPI-IO 0-3
44
45
Charge
Pump
CP3V
D3
CP2.8V
CP
4V
BBIC
IC1
IC3
65
KEY
LED
61
LDO_CTRL
CP
3.0
V
CP3V
QSPI
Control
52 QSPI-SCK
49 QSPI-CS
TGA681 only
79
Q10, Q1
1, Q12, R10
Q
1
0
,
Q
1
1
,
Q
1
2
,
R
1
0
KX-TGA681 BLOCK DI
A
GRAM (Handset)
LCD-BACK LIGHT
77
Reset
Reset
Pin 71
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