KX-NCP1280XJ — Panasonic PBX Service Manual (repair manual)

Model
KX-NCP1280XJ
Pages
41
Size
1.34 MB
Type
PDF
Document
Service Manual
Brand
Device
PBX / 2-PORT BRI CARD
File
kx-ncp1280xj.pdf
Date

View Panasonic KX-NCP1280XJ Service Manual online

ORDER NO. KMS0810583CE
2-Port BRI Card
Model No.
KX-NCP1280XJ
(for Asia, Oceania, Middle Near Esat, Africa and 
Latin America)
2
KX-NCP1280XJ
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------3
1.1. For Service Technicians  ---------------------------------3
2 Warning --------------------------------------------------------------3
2.1. About Lead Free Solder (PbF: Pb free) --------------3
2.1.1. Suggested PbF Solder -------------------------------3
2.2. Discarding of P. C. Board --------------------------------4
3 Specifications ------------------------------------------------------5
4 Technical Descriptions
------------------------------------------6
4.1. Block Diagram ----------------------------------------------6
4.2. Hardware Functional Specification --------------------7
4.2.1. ISDN Primary Rate Interface Function-----------7
4.2.2. Local Highway Interface Function-----------------8
4.2.3. EC Bus Interface --------------------------------------9
4.2.4. Outline of Reset System--------------------------- 10
4.2.5. Power Supply----------------------------------------- 11
5 Location of Controls and Components------------------ 12
5.1. Names and Locations----------------------------------- 12
6 Installation Instructions--------------------------------------- 13
6.1. Information about the Physical Trunk Cards ------ 13
6.1.1. BRI2 Card --------------------------------------------- 13
7 Troubleshooting Guide---------------------------------------- 15
7.1. BRI2 --------------------------------------------------------- 15
8 Miscellaneous ---------------------------------------------------- 21
8.1. How To Replace a Flat Package IC ----------------- 21
8.1.1. Preparation-------------------------------------------- 21
8.1.2. Removal Procedure--------------------------------- 21
8.1.3. Procedure --------------------------------------------- 21
8.1.4. Removing Solder From Between Pins --------- 21
8.2. Terminal Guide of the ICs Transistors and
Diodes------------------------------------------------------- 22
8.3. Memo-------------------------------------------------------- 23
9 Schematic Diagram--------------------------------------------- 24
9.1. No.1---------------------------------------------------------- 24
9.2. No.2---------------------------------------------------------- 26
9.3. No.3---------------------------------------------------------- 28
9.4. No.4---------------------------------------------------------- 30
10 Printed Circuit Board ------------------------------------------ 31
10.1. Component View ----------------------------------------- 31
10.2. Bottom View ----------------------------------------------- 32
11 Appendix Information of Schematic Diagram --------- 33
12 Exploded View and Replacement Parts List ----------- 34
12.1. IC Data------------------------------------------------------ 34
12.1.1. IC2 ------------------------------------------------------ 34
12.2. Mechanical Specification ------------------------------- 35
12.2.1. Table of Connectors -------------------------------- 35
12.3. Cabinet and Electrical Parts Location--------------- 36
12.4. Accessories and Packing Material------------------- 37
12.5. Replacement Parts List --------------------------------- 38
12.5.1. Cabinet and Electrical Parts Location ---------- 38
12.5.2. Accessories and Packing Materials------------- 38
12.5.3. Main Board Parts ------------------------------------ 38
3
     KX-NCP1280XJ
1 Safety Precautions
1.1.
For Service Technicians 
• Repair service shall be provided in accordance with repair technology information such as service manual so as to prevent fires,
injury or electric shock, which can be caused by improper repair work.
1. When repair services are provided, neither the products nor their parts or members shall be remodeled.
2. If a lead wire assembly is supplied as a repair part, the lead wire assembly shall be replaced.
3. FASTON terminals shall be plugged straight in and unplugged straight out.
• ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover plastic parts boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on worktable.
4. Do not grasp IC or LSI pins with bare fingers.
2 Warning
2.1.
About Lead Free Solder (PbF: Pb free)
Note:
In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that con-
tains lead.
We will use PbF when discussing the lead free solder used in our manufacturing process which is made from Tin, (Sn), Silver,
(Ag), and Copper, (Cu).
This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair
work we suggest using the same type of solder. 
Caution
• PbF solder has a melting point that is 50
° ~ 70° F, (30° ~ 40°C) higher than Pb solder. Please use a soldering iron with tempera-
ture control and adjust it to 700
° ± 20° F, (370° ± 10°C). 
Exercise care while using higher temperature soldering irons.:
Do not heat the PCB for too long time in order to prevent solder splash or damage to the PCB.
• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100
°F, (600°C).
• When applying PbF solder to double layered boards, please check the component side for excess which may flow onto the
opposite side (See figure, below).
2.1.1.
Suggested PbF Solder
There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper,
(Sn+Ag+Cu), you can also use Tin and Copper, (Sn+Cu), or Tin, Zinc, and Bismuth, (Sn+Zn+Bi). Please check the manufac
turer's specific instructions for the melting points of their products and any precautions for using their product with other 
materials. 
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.
4
KX-NCP1280XJ
2.2.
Discarding of P. C. Board
When discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.
5
     KX-NCP1280XJ
3 Specifications
Function
Description
BRI Line Interface
Number of Ports
BRI2:2Ports (4Line:2B 
× 2)
Transfer Rate
192Kbit/s
Line Code
AMI
BRI Line Interface IC
PEB21150 made by Infineon
Major Function
Framer
Line Driver/Receiver
HDLC Controller (D channel)
Clock Extraction/Monitoring
Elastic Buffer (Bchannel)
Line Interface Circuit (IC)
Main Front End Circuit
Pulse Transformer
Surge Absorber
EMC Fitter
Terminating Resistance
DC Supply circuit
Supplies DC power during the intercom mode
Supplied voltage:40V
Max. power supply:4.5W [max]/1 line
BRI2
→9W[max]/The entire board
Power supply mode:Separate-line power supply mode
Phantom power supply mode
Power supply ON/OFF switching function (Software regulated)
Surge protection function
Software protection by comparator
→Relay OFF
Hardware protection by poly-switch
eSAMSON (ASIC)
EC Bus Interface Functional (Slave)
H.100 Bus Interface Functional
Digital PLL Functional Local Bus Interface Functional (Compatible with legacy)
Timing Switch Function, Gain Control Function, FIFO/DPRAM Function
See the specification of eSAMSON for details.
eSAMSON (ASIC)
Card State Display LED:1
Line State Display LED:2
Lin Interface Connector
RJ45:2ports
On-board DC/DC Power Supply
Input+15V
Output+3.3V
Self-diagnostic Functional
Condition: Port 1
→outside line, Port 2 →extension line

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Here you can view online or download Panasonic KX-NCP1280XJ Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Panasonic KX-NCP1280XJ PBX. Information contained in Panasonic KX-NCP1280XJ service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).