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KX-TG6811RUB/KX-TG6811RUM/KX-TG6812RUB/KX-TG6821RUB/KX-TG6821RUM/KX-TG6822RUM/KX-TG6881RUB/KX-TG6891RUB/KX-TGA681RUB/KX-TGA681RUM/KX-TGA20EXB
4 Technical Descriptions
4.1.
Block Diagram (Base Unit)
Oper
ational P
.C
. Board
D101
CHARGE_CONT
A
C
T
+
-
SP
X501
13.824 MHz
ANT
2
ANT
1
TEL
J
A
CK
L1R
L1T
DCP
DCM
DC J
A
CK
RL
Y
LINE
DETECT
SIDE T
O
NE
CIRCUIT
Q161
Q141
BELL
DETECT
HOOK
BELL
Q
111
LIN
LOUT
RF_P
AR
T
HSMIP
HSMIN
IC501
BBIC
INUSE
DETECT
2
RECEIVE
AMP
DCIN 1 and 3
IC302
VCCP
A
VBA
T_APU
VBA
T
VCC_FE
VCC_IF
VCC_VCO
DCINS
CHARGE_DET
3.0V
DOUBOUT
SCL, SDA
WP
VCC
IC601
FLASH
MEMOR
Y
IC61
1
EEPR
OM
MEMOR
Y
KEYS
R151,R152
Q171
DI,CS
MSG_LED
KEYIN 1~3
KEYS_C~E
SPOUTN
SPOUTP
3.0 V
REGULA
T
O
R
Q351,
Q352
CLK,DO
STM/CKM
R371
R372
D362
Q701, Q702
CHARGE
DETECT
VCCA
VCC
SCL,RST
CS
,CD,SIO
DCIN 2
CAP
_
SW
CAP_CHG
HS_SUPPL
Y_DET
BA
CKUP
CAP
CIRCUIT
PO
WER
SUPPL
Y
CIRCUIT
FR
OM
HS
C901
optional
optional
TG6721 only
TG6721 only
ANT2
ANT1
RXp
RXn
RXON
TXp
TXn
TXON
RESET
RSTN
KX-TG681
1/6821 BLOCK DI
A
GRAM
(BASE UNIT)
LED
T
AM counter P
.CBoard
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