Read Panasonic KX-PRS110RUW / KX-PRS120RUW / KX-PRSA10RUW Service Manual online
8
KX-PRS110RUW/KX-PRS120RUW/KX-PRSA10RUW
4 Technical Descriptions
4.1.
Block Diagram (Base Unit)
Analog
Front
End
To TEL_LINE
Bridge
Rect D101
Hook Switch
Q141, Q142, Q161
Audio
Bell/Caller ID
Interface
CPU
MICn
LSRp
RINGn
CIDINp
CIDINn
CIDOUT
RINGOUT
BELL
HOOK
CHARGE_DET
Off-Hook Line Voltage
P
A
RADET
A/D
D/A
ADPCM
Codec Filter
DSP
Speech Encoding
Speech Decoding
BMC
Burst Encoding
Burst Decoding
RF
PLL
XT
AL2
XT
AL1
EEPROM
SCL
SDA
To AC Adaptor
To HANDSET
Limit
Resistor
R371, R372,
D362
Charge
Detector
CHARGE(+)
CHARGE(-)
for KX-PRS120 only
IC302 3.0V IC
3
0
2
3
.0
V
REGULA
T
O
R
R
E
G
U
L
A
T
O
R
Q302Q
3
0
2
Q301Q
3
0
1
2.4V
Reg.
1.8V
Reg.
3.0 V
2.4 V
1.8 V
BBIC
IC61
1
IC501
KX-PRS1
10/120 BLOCK DIAGRAM (BASE UNIT)
MOD/DEMOD
Charge
Pump
DCDC
Converter
Reset
CP_VOUT2
XTAL
X501X
5
0
1
10.368
MHz
RX
n
RX
p
TX
p
TX
n
DA802
ANT1
ANT2
ANT1
ANT2
ANT1
ANT2
L1
L2
DCP
DCM
FLASH MEMORY
IC601
QSPI
FLASH MEMORY
IC502
CP_VOUT1
3.0V
3.0V
RSTN
Pin 62
TAM-CSn
SPI-DI
SPI-DO
SPI-DO
SPICLK
QSPI-CS
QSPI-SCK
QSPI-IO 0-3
Q701, Q702
QSPI
Control
Click on the first or last page to see other KX-PRS110RUW / KX-PRS120RUW / KX-PRSA10RUW service manuals if exist.