KX-NT366RU (serv.man2) — Panasonic PBX Service Manual (repair manual). Page 5

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5
KX-NT366RU/KX-NT366RU-B
4 Technical Descriptions
4.1.
Block Diagram
Analog I/F 
HeadSet IF
Address Bus 
JK5
Data Bus 
Handset
RJ11
IC24
IC27
IC26
SW
Transistor
MIC
Speaker
CN5
CN4
JK4
KEY/LED/LCD
Bluetooth unit
Self-labeling LCD
<LCD_Boad>
CN603
LCD
CN
604
CN
602
Back
 light
CN
601
PCMSYNC1,PCMOUT,
CN
9
IC1
IC3 IC2 
SDRAM
8Mbyte
FLASH
4Mbyte
GPIO
IC20
MUTE_SP1
IC29
IC25
IC26
SW
SW
IC27
IC26
SW
SW
SW
SW
SW
HSIN
VoIP/DSP
Analog
Q1
IC21
IC28
IF
IC28
IC20
IC30
IC23
CN10
MUTE_SP2
CPU(Slave)
IC5
PCMIN,PCMCLK
PIO[3:0],RESET,
UART_TX/RX,UART_RTS/CTS
BK_LIT
CPU(Slave)
LED / Key 
IC4
SIO
PCM_I/F
HSOUT
MICIN
SPOUT
MUTE_SP0
GPIO
IC12
Reset
IC
INT
RESETn
RxRDY,OP_DET,SCLK,
RxD,TxD, RESET_OUT 
DC/DC
+4V
+3.3V
+1.5V
REG(1.5V)
Super
CAP
REG(3.3V)
DC ALARM
CN2
(For Option) 
IC10,31
IC11
C501
C502
IC8
IC13
Power I/F 
PoE chip
IC9
nRST_PHY
nRST_PHY
JK2
JK1
X1
Ethernet I/F
25.00
MHz
PULSE
Trans
PULSE
Trans
T2
RJ45
RJ45
To LAN
10/100Base-t
To PC 
10/100Base-t
KX-NT366
RU
/KX-NT366
RU
-B Block Diagram
T1
X2
+9V
DC IN
TX_EN,TX_ER,
TXD[3:0],
TX_EN,TX_ER,
TXD[3:0],
CRS
TX_CLK
RX_DV
RX_ER
RXD[3:0],
RX_CLK
TX_CLK
RX_CLK
COL
CRS
RX_DV
RX_ER
RXD[3:0],
COL
Ethernet
PHY
(KSZ8041)
IC6
Ethernet
PHY
(KSZ8041)
IC7
MAC1
MII2
MAC2
MII1
+48V
8.192
MHz
TXD,RESET,
SCLK_SELF
Self-labeling
TXD,RESET,
RXD_SUB,SCLK_SUB
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