10
KX-TG7622B/KX-TG7623B/KX-TGA410B
4.3.
Block Diagram (Base Unit_Main)
KX-TG7622/7623 BLOCK DIAGRAM (Base Unit_Main)
SIDE_TONE
CIRCUIT
Crystal
10.368MHz
TR_RLY
TIP
RING
TEL_JACK
VRF
/VPA
RF_Block
IC501
BBIC
DC5.5V+
GND
DC_JACK
+
-
CHARGE
3
4
2
1
D1
0
1
Q141
Q161
REGULATOR
IC30
2
KEY
PAD
LED
VBAT
IC611
LCD
IC502
IC751
IC601
IC721
BT
Module
Q301
+1.8V
AVD/VDD
RF_VDD
Q302
+2.4V
VDD_PA