KX-HDV230RU - Panasonic PBX Service Manual (repair manual). Page 2

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

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

2 Warning --------------------------------------------------------------3

2.1. Information for Users on Collection and

Disposal of Old Equipment and used Batteries-----3

2.2. About Lead Free Solder (PbF: Pb free) --------------4

2.2.1. Suggested PbF Solder -------------------------------4

2.3. 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. Main LCD Circuit --------------------------------------7
4.2.2. Self Label LCD Circuit--------------------------------7
4.2.3. Reset Circuit --------------------------------------------8
4.2.4. Ethernet Circuit ----------------------------------------9
4.2.5. PoE Circuit -------------------------------------------- 10
4.2.6. Analog Circuit ---------------------------------------- 10
4.2.7. Key Circuit--------------------------------------------- 12
4.2.8. LED Circuit -------------------------------------------- 13
4.2.9. ASIC ---------------------------------------------------- 14

4.2.10. Power Supply Circuit ------------------------------- 14

5 Location of Controls and Components------------------ 15

5.1. Name and Locations ------------------------------------ 15

6 Installation Instructions--------------------------------------- 19

6.1. Connections ----------------------------------------------- 19

7 Test Mode ---------------------------------------------------------- 20

7.1. Peer to Peer Test Mode -------------------------------- 20

7.1.1. Preparation-------------------------------------------- 20
7.1.2. Connection for Test --------------------------------- 21
7.1.3. Communication Test -------------------------------- 21
7.1.4. Quit peer to peer Test mode ---------------------- 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(Procedure after Replacing the Main
P.C.B.)------------------------------------------------------- 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. MAIN LCD Not Operate---------------------------- 31
9.2.2. Self-Label Not Operate ---------------------------- 32

9.3. Handset Does Not work -------------------------------- 33

9.3.1. Receive ------------------------------------------------ 33
9.3.2. Send ---------------------------------------------------- 33

9.4. Headset Does Not work -------------------------------- 34

9.4.1. Receive ------------------------------------------------ 34
9.4.2. Send ---------------------------------------------------- 34

9.5. Speaker-Phone Does Not work ---------------------- 35

9.5.1. Receive------------------------------------------------ 35
9.5.2. Send---------------------------------------------------- 35

9.6. EHS does not work(EHS control signal) ----------- 36
9.7. Ethernet Does Not work ------------------------------- 37

9.7.1. L2SW Date error ------------------------------------ 37
9.7.2. LAN port----------------------------------------------- 38
9.7.3. PC port ------------------------------------------------ 38

9.8. LED Does Not Light ------------------------------------- 39

10 Disassembly and Assembly Instructions -------------- 40

10.1. Remove Main Board and Selflabel Board --------- 40
10.2. Assembly for Lead wire -------------------------------- 41

10.2.1. Connecting Lead Wires --------------------------- 41

11 Maintenance------------------------------------------------------ 43

11.1. Terminal Guide of the ICs Transistors and

Diodes ------------------------------------------------------ 43

11.1.1. Main Board ------------------------------------------- 43
11.1.2. LED Board -------------------------------------------- 43
11.1.3. Selflabel Board -------------------------------------- 44

11.2. How To Replace a Flat Package IC ----------------- 45

11.2.1. Preparation ------------------------------------------- 45
11.2.2. Removal Procedure -------------------------------- 45
11.2.3. Procedure--------------------------------------------- 45
11.2.4. Removing Solder From Between Pins--------- 45

12 Schematic Diagram -------------------------------------------- 46

12.1. Main Board ------------------------------------------------ 46

12.1.1. No. 1 --------------------------------------------------- 46
12.1.2. No. 2 --------------------------------------------------- 47
12.1.3. No. 3 --------------------------------------------------- 48
12.1.4. No. 3 --------------------------------------------------- 49
12.1.5. No. 5 --------------------------------------------------- 50

12.2. Back Light Board----------------------------------------- 51
12.3. Selflabel Board ------------------------------------------- 52
12.4. Waveform -------------------------------------------------- 53

12.4.1. No.(1)-(8)---------------------------------------------- 53
12.4.2. No.(9)-(16) -------------------------------------------- 54
12.4.3. No.(17)-(24) ------------------------------------------ 55
12.4.4. No.(25)-(29) ------------------------------------------ 56

13 Printed Circuit Board------------------------------------------ 57

13.1. Main Board ------------------------------------------------ 57

13.1.1. Component View ------------------------------------ 57
13.1.2. Bottom View ------------------------------------------ 58

13.2. Back Light Board----------------------------------------- 59
13.3. LCD Board and LED Board --------------------------- 59
13.4. Selflabel Board ------------------------------------------- 60

13.4.1. Component View ------------------------------------ 60
13.4.2. Bottom View ------------------------------------------ 61

14 Appendix Information of Schematic Diagram -------- 62
15 Exploded View and Replacement Parts List----------- 63

15.1. Cabinet and Electric Parts----------------------------- 63
15.2. Accessories and Packing Materials ----------------- 64
15.3. Replacement Parts List -------------------------------- 66

15.3.1. Cabinet and Electrical Parts---------------------- 66
15.3.2. Accessories and Packing Materials ------------ 67
15.3.3. Main Board Parts ----------------------------------- 67
15.3.4. Selflabel Board Parts ------------------------------ 72
15.3.5. LED Board Parts ------------------------------------ 72