KX-NT630RU-B - Panasonic PBX Service Manual (repair manual). Page 9

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9
KX-NT630 Series
4 Technical Descriptions
4.1.
Block Diagram
DDR2
1Gbit
RGMII
DSPG DVF9919
Flash
1Gbit
RJ45 CON
To LAN
10/100/1000BASE-T
Ethernet I/F
TXD[3:0]
TCLK
RCTL
RXD[3:0]
RCLK
PHY_nRST
MDC
MDIO
TCTL
Audio
DDR IF
+ 12 V
DC IN
802.3af
PoE IC
+48V
PDN
DC/DC
Power supply
LDO
+1. 8V
I2C(1)
HEADSET_MIN
HEADSET_SPOUT
Headset
Detect
Voltage
CN
RSTN
+ 10.6 V
GPIO
Gigabit Switch
with PHY
(INTEL)
RJ45 CON
To PC
10/100/1000BASE-T
G1
RGMII1
G0
PULSE
Trans
PULSE
Trans
DC/DC
+1. 1V
+3.3V
Handset
HSSPOUT
HSMICIN
CN
+5V
+1. 8V
MIC
Speaker
MIP/MIN
SPP/SPN
DC/DC
+3.3V
+3.3V
+5V
Xtal
NAND IF
25MHz
+3.3V
USB( 1)
High/OTG
Internal +1.8V
Internal +1. 3V
NT630
Block Diagram
PM0
+1. 8V
+ 12 V
MICBIAS
MICBIAS
MICBIAS
+5V
25 MHz
+3.3V
GPIO
USB( 2)
(Full)
SPI(2)
+ 5V
LCD
LCD_CS
LCD_RST
LCD_A0
LCD_SCL
LCD_DO
+3.3V
CN
GPIO
Backlight 
BKLT1
PWM0
UTX
URX
PC
CLK_OUT
UART(2)
LCD
AFE
GPIO
KEY
HOOK SW
HOOK_DET
HEAD DET
HEAD_DET
LED
Key matrix
Dinamic 6x8
+ 3V
LED (Static)
Static
GPIO
DCIN0
GPIO
PCM
UART(1)
SDIO
SPI(1)
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
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