KX-NS5173XSX, KX-NS5174XSX - Panasonic PBX Service Manual (repair manual). Page 2

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KX-NS5173X/KX-NS5173SX/KX-NS5174X/KX-NS5174SX
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------3
1.1. For Service Technicians  ---------------------------------3
2 Warning --------------------------------------------------------------4
2.1. About Lead Free Solder (PbF: Pb free) --------------4
2.1.1. Suggested PbF Solder -------------------------------4
2.2. Discarding of P. C. Board --------------------------------4
3 Specifications ------------------------------------------------------5
4 General/Introduction ---------------------------------------------5
4.1. General Description ---------------------------------------5
5 Technical Descriptions------------------------------------------6
5.1. Block Diagram ----------------------------------------------6
5.2. Hardware Functional Specification --------------------7
5.2.1. PLD -------------------------------------------------------7
5.2.2. CODEC Function --------------------------------------7
5.2.3. 2W-4W Conversion -----------------------------------8
5.2.4. DTMF Signal Detection ------------------------------8
5.2.5. Power Supply to Tip/Ring ---------------------------9
5.2.6. Hook Detection-----------------------------------------9
5.2.7. Ring Trip Feature --------------------------------------9
5.2.8. Surge Protection------------------------------------- 10
5.2.9. Bell Signal Genarator and Transmission ------ 10
5.2.10. EXT-CID Transmission----------------------------- 10
5.2.11. Power Supply Voltage Generator --------------- 11
6 Location of Controls and Components------------------ 12
6.1. Names and Locations ----------------------------------- 12
7 Installation Instructions--------------------------------------- 13
7.1. Information about the Physical Extension
Cards -------------------------------------------------------- 13
7.1.1. MCSLC8 Card (KX-NS5173) and
MCSLC16 Card (KX-NS5174) ------------------- 13
8 Troubleshooting Guide---------------------------------------- 14
9 Miscellaneous ---------------------------------------------------- 19
9.1. How To Replace a Flat Package IC ----------------- 19
9.1.1. Preparation-------------------------------------------- 19
9.1.2. Removal Procedure--------------------------------- 19
9.1.3. Procedure --------------------------------------------- 19
9.1.4. Removing Solder From Between Pins --------- 19
9.2. Terminal Guide of the ICs Transistors and
Diodes------------------------------------------------------- 20
9.3. Memo-------------------------------------------------------- 21
10 Schematic Diagram--------------------------------------------- 22
10.1. KX-NS5173 ------------------------------------------------ 22
10.1.1. No.1 ----------------------------------------------------- 22
10.1.2. No.2 ----------------------------------------------------- 24
10.1.3. No.3 ----------------------------------------------------- 26
10.2. KX-NS5174 ------------------------------------------------ 28
10.2.1. No.1 ----------------------------------------------------- 28
10.2.2. No.2 ----------------------------------------------------- 30
10.2.3. No.3 ----------------------------------------------------- 32
10.3. Waveform -------------------------------------------------- 34
10.4. Memo-------------------------------------------------------- 36
11 Printed Circuit Board ------------------------------------------ 37
11.1. Component View ----------------------------------------- 37
11.2. Bottom View ----------------------------------------------- 38
12 Appendix Information of Schematic Diagram --------- 39
13 Exploded View and Replacement Parts List ----------- 40
13.1. IC Data------------------------------------------------------ 40
13.1.1. PLD(IC300) ------------------------------------------- 40
13.2. Cabinet and Electrical Parts Location -------------- 42
13.2.1. KX-NS5173------------------------------------------- 42
13.2.2. KX-NS5174------------------------------------------- 43
13.3. Accessories and Packing Material ------------------ 44
13.4. Replacement Parts List -------------------------------- 45
13.4.1. Cabinet and Electrical Parts  --------------------- 45
13.4.2. Accessories and Packing Materials ------------ 45
13.4.3. Main Board Parts ----------------------------------- 45
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