Read Panasonic KX-TG8551UAB / KX-TG8561UAB / KX-TG8561UAR / KX-TGA855RUB / KX-TGA855RUR Service Manual online
14
KX-TG8551UAB/KX-TG8561UAB/KX-TG8561UARKX-TGA855RUB/KX-TGA855RUR
4.5.
Block Diagram (Handset)
QSPI
FLASH MEMORY
IC4
Re
s
et
Re
s
et
pin 62
SPEAKER
RECEIVER
Headset Jack
CN4
MIC
CHARGE
Power Failer Mode
Power Supply SW
CIRCUIT
Q2, Q3, Q4,
Q9, R8
CHARGE
CONTACTS
CHARGE(+)
CHARGE_CTRL
BATTERY_ON
CHARGE_DET
EEPROM
SCL
SDA
BATTERY
TERMINAL
R45
VBAT
BATT-
1.8 V
Q1
1.8 V
CP 2.8 V
LCD
CD
RESET
CSB
SDA
SCL
CPU
Analog
Front
End
D/A
A/D
34
36
23
24
19
20
21
29
33
32
58
59
85
26
43
44
64
55
56
69
67
ADPCM
Codec
Filter
DSP
Speech
Decoding
Speech
Encoding
BMC
Burst
Decoding
ANT1
Burst
Encoding
RF
PLL
MOD/DEMOD
5
2
3
79
78
RXn
RXon
ANT1
DA801
RXp
TXp
TXn
TXon
9
10
XTAL
X1
10.368
MHz
BATTERY
45
ON SWITCH
KEYPAD
Charge
Pump
ROWS
COLUMNS
CP3V
D3
CP2.8V
CP_LED
49, 50, 51, 52
13, 14, 15, 16, 27,47
90, 92, 94, 96 QSPI-IO 0-3
BBIC
IC1
IC3
57
LCD-BACK LIGHT
KEY LED
BELL LED
53
72
80
LDO_CTRL
CP 3.0 V
CP3V
QSPI
Control
91 QSPI-SCK
95 QSPI-CS
TGA855 only
71
Q10, Q11, Q12, R10
70
KX-TGA855 BLOCK DIA
GRAM (H
a
nd
s
et)
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