DOWNLOAD Panasonic KX-NT560RU / KX-NT560RU-B Service Manual ↓ Size: 4.23 MB | Pages: 103 in PDF or view online for FREE

ORDER NO. KMS1306951CE

White Version
Black Version
(for Russia)

2

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 -------------------------------4

2.2. Discarding of P. C. Board --------------------------------4

3 Specifications ------------------------------------------------------5
4 Technical Descriptions------------------------------------------6

4.1. Block Diagram ----------------------------------------------6
4.2. Circuit Operations ------------------------------------------7

4.2.1. LCD / BACKLIGHT Circuit --------------------------7
4.2.2. Reset Circuit --------------------------------------------7
4.2.3. Ethernet Circuit ----------------------------------------8
4.2.4. Analog Circuit ------------------------------------------9
4.2.5. ASIC (IC204) ----------------------------------------- 12
4.2.6. Key Circuit--------------------------------------------- 13
4.2.7. LED Circuit -------------------------------------------- 14
4.2.8. EHS Circuit-------------------------------------------- 15
4.2.9. Power Supply Circuit ------------------------------- 16

5 Location of Controls and Components------------------ 19

5.1. Name and Locations ------------------------------------ 19

6 Installation Instructions--------------------------------------- 20

6.1. Connections ----------------------------------------------- 20

7 Test Mode---------------------------------------------------------- 22

7.1. KEY and LEDs Test mode ----------------------------- 22

7.1.1. Preparation-------------------------------------------- 22
7.1.2. KEYs and LEDs Test ------------------------------- 23

7.2. Loopback Test Mode(ACOUSTIC MODE)--------- 24

7.2.1. Preparation-------------------------------------------- 24
7.2.2. Communication Test -------------------------------- 25
7.2.3. Quit Test Mode for communication test -------- 25

8 Service Mode ----------------------------------------------------- 26

8.1. Factory Setting-------------------------------------------- 26

8.1.1. How to Clear User Setting ------------------------ 26

8.2. How to Change MAC Address Label---------------- 26

8.2.1. Replacing Main P.C.B. ----------------------------- 26
8.2.2. Attaching MAC Address and Serial

Number Label ---------------------------------------- 27

9 Troubleshooting Guide---------------------------------------- 28

9.1. No Operation ---------------------------------------------- 28

9.1.1. Power ON Error-------------------------------------- 28
9.1.2. Power Supply : AC adaptor ----------------------- 28
9.1.3. Power Supply : PoE -------------------------------- 29

9.2. LCD Does Not work ------------------------------------- 38
9.3. ASIC Does Not work ------------------------------------ 39

9.3.1. ASIC Data Error ------------------------------------- 39

9.4. Handset Does Not work -------------------------------- 40

9.4.1. Receive ------------------------------------------------ 40
9.4.2. Send ---------------------------------------------------- 40

9.5. Headset Does Not work -------------------------------- 41

9.5.1. Receive ------------------------------------------------ 41
9.5.2. Send ---------------------------------------------------- 41

9.6. Speaker-Phone Does Not work----------------------- 42

9.6.1. Receive ------------------------------------------------ 42
9.6.2. Send ---------------------------------------------------- 43

9.7. Ethernet Does Not work -------------------------------- 44

9.7.1. ETHERNET Data Error ---------------------------- 44
9.7.2. LAN port ----------------------------------------------- 45
9.7.3. PC port ------------------------------------------------- 45

9.8. LED Does Not Light------------------------------------- 46
9.9. EHS Does Not work------------------------------------- 47

9.10. BT module Does Not work ---------------------------- 48

10 Disassmbly and Assembly Instructions ---------------- 49

10.1. Remove Main Board and Ope Board--------------- 49
10.2. Remove and Assembly for LCD  -------------------- 51
10.3. Installation of MAIN PCB ASSY---------------------- 52

10.3.1. Installation of MAIN PCB ASSY----------------- 53
10.3.2. Installation of Ope PCB ASSY------------------- 53

11 Maintenance------------------------------------------------------ 54

11.1. Terminal Guide of the ICs Transistors and

Diodes ------------------------------------------------------ 54

11.1.1. Main Board ------------------------------------------- 54
11.1.2. Ope Board -------------------------------------------- 55
11.1.3. Backlight Board-------------------------------------- 55

11.2. How To Replace a Flat Package IC----------------- 56

11.2.1. Preparation ------------------------------------------- 56
11.2.2. Removal Procedure -------------------------------- 56
11.2.3. Procedure--------------------------------------------- 56
11.2.4. Removing Solder From Between Pins--------- 56

11.3. Memo ------------------------------------------------------- 57

12 Schematic Diagram -------------------------------------------- 58

12.1. Main Board No.1----------------------------------------- 58
12.2. Main Board No.2----------------------------------------- 62
12.3. Main Board No.3----------------------------------------- 64
12.4. Main Board No.4----------------------------------------- 66
12.5. Ope Board------------------------------------------------- 68
12.6. Back Light Board ---------------------------------------- 70
12.7. Waveform-------------------------------------------------- 71

12.7.1. No.(1)-(6)---------------------------------------------- 71
12.7.2.  No.(7)-(12) ------------------------------------------- 72
12.7.3. No.(13)-(16) ------------------------------------------ 73
12.7.4. No.(17)-(20) ------------------------------------------ 74
12.7.5. No.(21)-(25) ------------------------------------------ 75
12.7.6. No.(26)-(28) ------------------------------------------ 76

13 Printed Circuit Board------------------------------------------ 77

13.1. Main Board ------------------------------------------------ 77

13.1.1. Component View------------------------------------ 77
13.1.2. Bottom View------------------------------------------ 78

13.2. Ope Board------------------------------------------------- 79

13.2.1. Component View------------------------------------ 79
13.2.2. Bottom View------------------------------------------ 80

13.3. Back Light Board----------------------------------------- 81

13.3.1. Component View------------------------------------ 81

14 Appendix Information of Schematic Diagram -------- 82
15 Exploded View and Replacement Parts List----------- 83

15.1. IC Data ----------------------------------------------------- 83

15.1.1. IC503--------------------------------------------------- 83
15.1.2. IC204--------------------------------------------------- 88
15.1.3. IC401--------------------------------------------------- 89
15.1.4. IC103--------------------------------------------------- 92

15.2. Cabinet and Electric Parts----------------------------- 94
15.3. Accessories and Packing Materials----------------- 95
15.4. Replacement Parts List -------------------------------- 96

15.4.1. Cabinet and Electrical Parts---------------------- 96
15.4.2. Accessories and Packing Materials ------------ 96
15.4.3. Main Board Parts ----------------------------------- 97
15.4.4. OPE Board Parts-----------------------------------101
15.4.5. Back Light Board-----------------------------------103

3

1. Before servicing, unplug the AC power cord to prevent an electric shock.
2. When replacing parts, use only the manufacturer's recommended components.
3. Check the condition of the power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, be sure to perform the following insulation resistance test to prevent

the customer from being exposed to shock hazards.

• 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.

In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that
contains lead.

We will use PbF solder 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.

• PbF solder has a melting point that is 50 

°F ~ 70 °F (30 °C ~ 40 °C) higher than Pb solder. Please use a soldering iron with

temperature control and adjust it to 700 

°F ± 20 °F (370 °C ± 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 the figure below).

4

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.

When discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.