KX-NT630RU-B - Panasonic PBX Service Manual (repair manual). Page 2

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1 Safety Precautions -----------------------------------------------3

1.1. For Service Technicians  ---------------------------------3

2 Warning --------------------------------------------------------------4

2.1. Battery Caution ---------------------------------------------4

2.1.1. Information for Users on Collection and

Disposal of Old Batteries ----------------------------4

2.2. Caution--------------------------------------------------------5
2.3. About Lead Free Solder (PbF: Pb free) --------------6

2.3.1. Suggested PbF Solder -------------------------------7

2.4. Discarding of P. C. Board --------------------------------7

3 Specifications ------------------------------------------------------8
4 Technical Descriptions------------------------------------------9

4.1. Block Diagram ----------------------------------------------9
4.2. Circuit Operations ---------------------------------------- 10

4.2.1. LCD Circuit -------------------------------------------- 10
4.2.2. Reset Circuit ------------------------------------------ 10
4.2.3. Ethernet Circuit -------------------------------------- 11
4.2.4. PoE Circuit -------------------------------------------- 12
4.2.5. Analog Circuit ---------------------------------------- 12
4.2.6. Key Circuit--------------------------------------------- 14
4.2.7. LED Circuit -------------------------------------------- 15
4.2.8. Power Supply Circuit ------------------------------- 16

5 Location of Controls and Components------------------ 17

5.1. Names and Locations ----------------------------------- 17

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

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

7 Test Mode ---------------------------------------------------------- 21

7.1. Loopback Test Mode ------------------------------------ 21

7.1.1. Preparation-------------------------------------------- 21
7.1.2. Communication Test -------------------------------- 21
7.1.3. Quit Test Mode for communication test  ------- 21

7.2. Functional Test Mode ----------------------------------- 22

7.2.1. Preparation-------------------------------------------- 22
7.2.2. Functional Test mode lists------------------------- 22
7.2.3. Quit this Test Mode --------------------------------- 23

8 Service Mode ----------------------------------------------------- 24

8.1. Factory Setting-------------------------------------------- 24

8.1.1. How to Clear User Setting ------------------------ 24

8.2. How to Change MAC Address Label---------------- 24

8.2.1. Replacing Main P.C.B. ----------------------------- 24
8.2.2. Attaching MAC Address Label ------------------- 25

9 Troubleshooting Guide---------------------------------------- 26

9.1. No Operation ---------------------------------------------- 26

9.1.1. Power ON Error-------------------------------------- 26
9.1.2. Power Supply : AC adaptor ----------------------- 26
9.1.3. Power Supply : PoE -------------------------------- 27

9.2. LCD Does Not Operate --------------------------------- 31

9.2.1. LCD Not Operate ------------------------------------ 31

9.3. Handset Does Not work -------------------------------- 32

9.3.1. Receive ------------------------------------------------ 32
9.3.2. Send ---------------------------------------------------- 32

9.4. Headset Does Not work -------------------------------- 33

9.4.1. Receive ------------------------------------------------ 33
9.4.2. Send ---------------------------------------------------- 33

9.5. Speaker-Phone Does Not work----------------------- 34

9.5.1. Receive ------------------------------------------------ 34
9.5.2. Send ---------------------------------------------------- 34

9.6. Ethernet Does Not work -------------------------------- 35

9.6.1. L2SW Data error ------------------------------------ 35
9.6.2. LAN port----------------------------------------------- 36
9.6.3. PC port ------------------------------------------------ 36

9.7. LCD back light and LED Not Light ------------------ 37

10 Disassembly and Assembly Instructions -------------- 38

10.1. Remove Main Board ------------------------------------ 38
10.2. Assembly for Lead wire -------------------------------- 39

11 Maintenance------------------------------------------------------ 40

11.1. How To Replace a Flat Package IC ----------------- 40

11.1.1. Preparation ------------------------------------------- 40
11.1.2. Removal Procedure -------------------------------- 40
11.1.3. Procedure--------------------------------------------- 40
11.1.4. Removing Solder From Between Pins--------- 40

11.2. How to Replace the LLP (Leadless Leadframe

Package) IC and IC ground plate-------------------- 41

11.2.1. Preparation ------------------------------------------- 41
11.2.2. Caution ------------------------------------------------ 41
11.2.3. How to Remove the IC ---------------------------- 41
11.2.4. How to Install the IC -------------------------------- 41
11.2.5. How to Remove a Solder Bridge (Doesn't

apply to IC ground plate.) ------------------------- 42

12 Schematic Diagram -------------------------------------------- 43

12.1. Main Board ------------------------------------------------ 43
12.2. Waveform -------------------------------------------------- 49

12.2.1. No. (1) - (7) ------------------------------------------- 49
12.2.2. No. (8) - (14) ----------------------------------------- 50
12.2.3. No. (15) - (20)---------------------------------------- 51

13 Printed Circuit Board------------------------------------------ 52

13.1. Main Board ------------------------------------------------ 52

13.1.1. Component View ------------------------------------ 52
13.1.2. Bottom View ------------------------------------------ 53

14 Appendix Information of Schematic Diagram -------- 54
15 Exploded View and Replacement Parts List----------- 55

15.1. Cabinet and Electric Parts----------------------------- 55
15.2. Accessories and Packing Materials ----------------- 56
15.3. Replacement Parts List -------------------------------- 57

15.3.1. Cabinet and Electrical Parts---------------------- 57
15.3.2. Accessories and Packing Materials ------------ 58
15.3.3. Main Board Parts ----------------------------------- 58

16 History-------------------------------------------------------------- 62