KX-NT560RU, KX-NT560RU-B - Panasonic PBX Service Manual (repair manual). Page 2

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