Block Diagram (Handset) - Panasonic KX-TG6440PK Service Manual

KX-TG6440PK/KX-TGA641S/KX-TGA641T/KX-TGA740B
4.5.

Block Diagram (Handset)

Q531
CHARGE
DETECT
Q361
CHARGE
BATTERY
IC561
DC/DC
CONVERTER
LCD
BACK
LIGHT
LED551-554
(KEY)
LED561
(BELL)
Q562
Q561
IC372
DC/DC
CONVERTER
IC373
DC/DC
CONVERTER
Q362, Q364
CHARGE
CONTROL
RST
D361
IC374
RST
IC371
2.7 V
REGULATOR
MIC
SP
Headset Jack
CN431
R436/R437
HEADSET
DETECT
Monitor SP
CI
IC541
X501
EEPROM
13.824 MHz
CHG_DET
CHG_CTL
SYN_OUT
SYN_EN
SYN_CLK
RESET
SYN_DATA
SLOT_CTROL
RADIO_EN
TXDATA
RXDATA
PDN
RF_RSTN
VCC
VCCA
VCCPA
IC501
DSP
MIP
MIN
RF_POWER
SPP1
LCD BACKLIGHT
SPN
HSM
HEADSET_DET
BL_LED
BELL_LIGHT
SPP2
SPPN
CI
LCD
KEYS
KX-TGA641 BLOCK DIAGRAM (Handset)
20
ANT2 ANT1
RF part
V_PA
V_RF
V_IO
IC741
2.7 V
REGULATOR