KX-MB1500RUB, KX-MB1500RUW, KX-MB1520RUB, KX-MB1520RUW, KX-MB1500RUD - Panasonic Fax Service Manual (repair manual). Page 21

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21
KX-MB1500RUB/KX-MB1500RUW/KX-MB1520RUB/KX-MB1520RUW
AC26
BSPCLK
I/O
3.3V
NCU INTERFACE
AD01
SDMD14
I/O
3.3V
SDRAM DATA BUS 14
AD02
SDMD15
I/O
3.3V
SDRAM DATA BUS 15
AD03
VSS
-
GND
GND
AD04
NBATRST
I
3.3V
BATTERY RESET INPUT
AD05
VDD2RTC
-
1.2V
POWER SUPPLY
AD06
CRS
I
3.3V
ETHERNET INTERFACE
AD07
TXD1
O
3.3V
ETHERNET INTERFACE
AD08
RX_DV
I
3.3V
ETHERNET INTERFACE
AD09
RXD2
I
3.3V
ETHERNET INTERFACE
AD10
RX_ER
I
3.3V
ETHERNET INTERFACE
AD11
CLKSEL
I
3.3V
NOT USED
AD12
USBVSSA33_BIAS
-
GND
GND
AD13
USBVSSA33
-
GND
GND
AD14
USBVDDA12_SQ
-
1.2V
POWER SUPPLY
AD15
USBVSSA12
-
GND
GND
AD16
LSI_TRSTN
I
3.3V
NOT USED
AD17
LSI_TDO
O
3.3V
NOT USED
AD18
NRST
I
3.3V
SYSTEM RESET INPUT
AD19
HTRCTL
O
3.3V
HEATER CONTROL
AD20
PSCIO3
I
3.3V
INPUT PORT (POUT)
AD21
PSCIO7
O
3.3V
NOT USED
AD22
PSCIO15
I
3.3V
INPUT PORT (RPS)
AD23
NC
-
-
NOT USED
AD24
VSS
-
GND
GND
AD25
ASPCLK
I/O
3.3V
NCU INTERFACE
AD26
ARXD
I
3.3V
NCU INTERFACE
AE01
SDLDM1
O
3.3V
SDRAM DQML1
AE02
VSS
-
GND
GND
AE03
SYSPLLVSS1
-
GND
GND
AE04
RTCCLKOUT
O
3.3V
CRYSTAL(32.768KHz) OUTPUT
AE05
RTCPWRDWN
I
3.3V
RTC POWER DOWN
AE06
TX_CLKI
I
3.3V
ETHERNET INTERFACE
AE07
TXD2
O
3.3V
ETHERNET INTERFACE
AE08
RX_CLKI
I
3.3V
ETHERNET INTERFACE
AE09
RXD3
I
3.3V
ETHERNET INTERFACE
AE10
MDC
O
3.3V
ETHERNET INTERFACE
AE11
NC
-
-
NOT USED
AE12
USBID
O
3.3V
NOT USED
AE13
USBDM
I/O
3.3V
USB INTERFACE
AE14
USBVSSA12_SQ
-
GND
GND
AE15
USBVDDA12PLL
-
1.2V
POWER SUPPLY
AE16
USBVDDA12
-
1.2V
POWER SUPPLY
AE17
LSI_TDI
I
3.3V
NOT USED
AE18
LSI_PROCMON
O
3.3V
NOT USED
AE19
LSI_IDDT
I
3.3V
NOT USED
AE20
PSCIO1
I
3.3V
INPUT PORT (PICK)
AE21
PSCIO5
O
3.3V
NOT USED
AE22
PSCIO13
I
3.3V
INPUT PORT (TNR)
AE23
MDMCLKOUT
O
3.3V
CRYSTAL(24.576MHz) OUTPUT
AE24
MDMPLLVDD
-
3.3V
POWER SUPPLY
AE25
VSS
-
GND
GND
AE26
ABITCLK
I/O
3.3V
NCU INTERFACE
AF02
SYSPLLVDD1
-
3.3V
POWER SUPPLY
AF03
VDD3.3OSC
-
3.3V
POWER SUPPLY
AF04
RTCCLKIN
I
3.3V
CRYSTAL(32.768KHz) INPUT
AF05
COL
I
3.3V
ETHERNET INTERFACE
AF06
TX_EN
O
3.3V
ETHERNET INTERFACE
AF07
TXD3
O
3.3V
ETHERNET INTERFACE
AF08
RXD0
I
3.3V
ETHERNET INTERFACE
AF09
MDIO
I/O
3.3V
ETHERNET INTERFACE
AF10
MGTINT
I
3.3V
ETHERNET INTERFACE
AF11
USBVBUS
O
3.3V
USB INTERFACE
AF12
USBVDDA33_BIAS
-
3.3V
POWER SUPPLY
AF13
USBDP
I/O
3.3V
USB INTERFACE
AF14
USBVDDA33
-
3.3V
POWER SUPPLY
AF15
USBVSSA12PLL
-
GND
GND
PIN NO.
PinName
I/O
POWER SUPPLY VOLTAGE
EXPLANATION
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