DOWNLOAD Panasonic KX-NT366RU (serv.man2) Service Manual ↓ Size: 3.56 MB | Pages: 82 in PDF or view online for FREE

Model
KX-NT366RU (serv.man2)
Pages
82
Size
3.56 MB
Type
PDF
Document
Service Manual
Brand
Device
PBX / IP PROPRIETARY TELEPHONE
File
kx-nt366ru-sm2.pdf
Date

Panasonic KX-NT366RU (serv.man2) Service Manual ▷ View online

4
KX-NT366RU/KX-NT366RU-B
3 Specifications
3.1.
General Descriptions
Design and specifications are subject to change without notice.
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
6
KX-NT366RU/KX-NT366RU-B
4.2.
Circuit Operations
4.2.1.
Main-CPU (IC1)
The DSP , MAC, CODEC and the CPU are built into the VoIP (IC1).  
The FLASH (IC2) and the SDRAM (IC3) are connected to the CPU. The contents of the FLASH are expanded to the SDRAM at
start-up. It also stores each setting.  
If the LCD is not displayed in the operation but there is no problem on the LCD, then the failure of the CPU system memory (IC2
and IC3) should be considered.
4.2.2.
LCD Circuit
LCD data are outputted from pin 54 of IC4 to LCD module.
IC19 is an inverter for a charge pump circuit which outputs the voltage necessary for LCD driving.
• 4.5V from -1.2V generated at IC19 as a reference to +3.3V of the power supply voltage is pressurized four times in the LCD mod-
ule and used as LCD driving voltage (approx. 18V).
LCD contrast is set by electronic volume in the LCD module.
The type of the LCD module is distinguished by pin 56 of IC4.
KX-NT366 uses a 24 digits x 6 lines LCD.
The lighting of the backlight is controlled by Q601.
• IC4-pin 52 H
→Q601-ON→Backlight ON
• IC4-pin 52 L
→Q601-OFF→Backlight OFF
7
KX-NT366RU/KX-NT366RU-B
4.2.3.
LCD Circuit (Self-labeling)
LCD data are outputted from pin 54 of IC5 to LCD module.
LCD contrast is set by electronic volume in LCD module.
Self-labeling uses a 12 digits x 12 lines LCD.
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Panasonic KX-NT366RU (serv.man2) Service Manual ▷ Download

  • DOWNLOAD Panasonic KX-NT366RU (serv.man2) Service Manual ↓ Size: 3.56 MB | Pages: 82 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Panasonic KX-NT366RU (serv.man2) in PDF for free, which will help you to disassemble, recover, fix and repair Panasonic KX-NT366RU (serv.man2) PBX. Information contained in Panasonic KX-NT366RU (serv.man2) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.