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2
KX-TES824CA/KX-TEM824CA
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------5
1.1. For Service Technicians ---------------------------------5
1.2. Insulation Resistance Test -------------------------------5
1.2. Insulation Resistance Test -------------------------------5
2 Warning --------------------------------------------------------------6
2.1. Battery Caution ---------------------------------------------6
2.2. Caution--------------------------------------------------------6
2.3. About Lead Free Solder (PbF: Pb free) --------------6
2.2. Caution--------------------------------------------------------6
2.3. About Lead Free Solder (PbF: Pb free) --------------6
3 Specifications ------------------------------------------------------7
3.1. General Description ---------------------------------------7
3.2. Characteristics ----------------------------------------------7
3.2. Characteristics ----------------------------------------------7
4 Technical Descriptions------------------------------------------8
4.1. System Block Diagram------------------------------------8
4.2. Power Block Diagram -------------------------------------9
4.3. Main Block Diagram --------------------------------------9
4.4. Option Block Diagram (KX-TEM824CA Only) ---- 10
4.5. Power Supply Unit Block Diagram------------------- 10
4.6. Explanation of Block Diagram (Main Unit) --------- 11
4.7. Circuit Operation (Power Supply Circuit)----------- 13
4.8. CO Interface Circuit-------------------------------------- 14
4.9. Cross Point Switch Circuit ----------------------------- 18
4.2. Power Block Diagram -------------------------------------9
4.3. Main Block Diagram --------------------------------------9
4.4. Option Block Diagram (KX-TEM824CA Only) ---- 10
4.5. Power Supply Unit Block Diagram------------------- 10
4.6. Explanation of Block Diagram (Main Unit) --------- 11
4.7. Circuit Operation (Power Supply Circuit)----------- 13
4.8. CO Interface Circuit-------------------------------------- 14
4.9. Cross Point Switch Circuit ----------------------------- 18
4.10. Intercom Circuit ------------------------------------------- 20
4.11. Power Failure Through Call Switching Circuit ---- 21
4.12. DATA Communication Circuit ------------------------- 22
4.13. Control Circuit --------------------------------------------- 23
4.14. TONE Generator Circuit -------------------------------- 24
4.15. DTMF Generator Circuit-------------------------------- 25
4.16. DTMF Receiver Circuit---------------------------------- 26
4.17. INT CALL ID Interface Circuit ------------------------- 27
4.18. MODEM Interface Circuit------------------------------- 27
4.19. USB Interface Circuit------------------------------------ 28
4.20. OGM Interface Circuit----------------------------------- 28
4.21. Ringing Signal Generator Circuit--------------------- 29
4.22. SMDR Interface Circuit --------------------------------- 29
4.23. DOORPHONE Card Interface (KX-
4.13. Control Circuit --------------------------------------------- 23
4.14. TONE Generator Circuit -------------------------------- 24
4.15. DTMF Generator Circuit-------------------------------- 25
4.16. DTMF Receiver Circuit---------------------------------- 26
4.17. INT CALL ID Interface Circuit ------------------------- 27
4.18. MODEM Interface Circuit------------------------------- 27
4.19. USB Interface Circuit------------------------------------ 28
4.20. OGM Interface Circuit----------------------------------- 28
4.21. Ringing Signal Generator Circuit--------------------- 29
4.22. SMDR Interface Circuit --------------------------------- 29
4.23. DOORPHONE Card Interface (KX-
TE82461X)------------------------------------------------- 30
4.24. OGM Card Interface (KX-TE82491X)--------------- 30
4.25. BUILT in Voice Message Card Interface (KX-
4.25. BUILT in Voice Message Card Interface (KX-
TE82492X)------------------------------------------------- 31
4.26. CALL ID Card Interface (KX-TE82493X)----------- 31
5 Location of Controls and Components------------------ 32
5.1. Name and Locations ------------------------------------ 32
6 Installation Instructions--------------------------------------- 32
6.1. Connection ------------------------------------------------ 32
6.2. System Capacity ----------------------------------------- 33
6.3. System Overview ---------------------------------------- 33
6.2. System Capacity ----------------------------------------- 33
6.3. System Overview ---------------------------------------- 33
7 Troubleshooting Guide --------------------------------------- 35
7.1. No Operation (Check Power Supply Board,
Main Board) ----------------------------------------------- 35
7.2. No Dial TONE (Main Board) -------------------------- 36
7.3. Cannot Dial (Main Board) ----------------------------- 37
7.4. Cannot Call Extension (Main Board) --------------- 38
7.5. Cannot Use Proprietary Telephone (Main
7.3. Cannot Dial (Main Board) ----------------------------- 37
7.4. Cannot Call Extension (Main Board) --------------- 38
7.5. Cannot Use Proprietary Telephone (Main
Board) ------------------------------------------------------ 38
7.6. Cannot Receive Incoming Call (Main Board)----- 38
7.7. Cannot Send DTMF Dialing (Main Board) -------- 39
7.8. Cannot Receive Call Dial Tone (Main Board) ---- 39
7.9. Cannot Send a Hold On Music (Main Board)----- 40
7.7. Cannot Send DTMF Dialing (Main Board) -------- 39
7.8. Cannot Receive Call Dial Tone (Main Board) ---- 39
7.9. Cannot Send a Hold On Music (Main Board)----- 40
7.10. No Dial Tone (Option Board KX-TEM824CA
Only) -------------------------------------------------------- 40
7.11. Cannot Dial (Option Board KX-TEM824CA
Only) -------------------------------------------------------- 41
7.12. Cannot Call Extension (Option Board KX-
TEM824CA Only)---------------------------------------- 41
7.13. Cannot Use Proprietary Telephone (Option
Board KX-TEM824CA Only) -------------------------- 42
7.14. Cannot Receive Incoming Call (Option Board
KX-TEM824CA Only) ----------------------------------- 42
7.15. Cannot Send DTMF Dialing (Option Board
KX-TEM824CA Only) ----------------------------------- 42
7.16. Cannot Receive Call Dial Tone (Option Board
KX-TEM824CA Only) ----------------------------------- 43
7.17. Cannot Send a Hold On Music (Option Board
KX-TEM824CA Only) ----------------------------------- 43
8 Service Fixture & Tools--------------------------------------- 44
9 Disassembly and Assembly Instructions -------------- 45
9 Disassembly and Assembly Instructions -------------- 45
10 Maintenance------------------------------------------------------ 48
10.1. Terminal Guide of the ICs Transistors and
Diodes ------------------------------------------------------ 48
10.2. How To Replace a Flat Package IC----------------- 49
10.3. Memo ------------------------------------------------------- 50
10.3. Memo ------------------------------------------------------- 50
11 Schematic Diagram -------------------------------------------- 51
11.1. Block Diagram -------------------------------------------- 51
11.2. Main No.1 (Extention A-D Block) -------------------- 52
11.3. Main No.2 (Extention E-H Block) -------------------- 56
11.2. Main No.1 (Extention A-D Block) -------------------- 52
11.3. Main No.2 (Extention E-H Block) -------------------- 56
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