KX-A405CE - Panasonic PBX Service Manual (repair manual). Page 2

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2
KX-A405CE
TABLE OF CONTENTS
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
2.1.2. Information for Users on Collection and
Disposal of Old Equipment and used
Batteries -------------------------------------------------4
2.2. Discarding of P. C. Board --------------------------------4
3 Specifications ------------------------------------------------------5
4 Technical Descriptions
------------------------------------------6
4.1. Block Diagram (Main) -------------------------------------6
4.2. Block Diagram (RF Part) ---------------------------------6
4.3. Circuit Operation -------------------------------------------7
4.3.1. BBIC (Base Band IC: IC501) -----------------------7
4.3.2. EEPROM (IC611) -------------------------------------7
4.3.3. Power Supply Circuit ---------------------------------8
4.3.4. RF Signal Route ---------------------------------------8
5 Location of Controls and Components--------------------9
6 Installation Instructions
-----------------------------------------9
6.1. Registering a Repeater -----------------------------------9
6.2. Deregistering a Repeater --------------------------------9
7 Troubleshooting Guide---------------------------------------- 10
7.1. Flow Chart ------------------------------------------------- 10
7.1.1. Flow Chart--------------------------------------------- 10
7.1.2. Check Table for repeater operation ------------- 11
7.2. Check Power ---------------------------------------------- 12
7.3. Check Link ------------------------------------------------- 13
7.4. Check the RF part---------------------------------------- 14
8 Disassembly and Assembly Instructions--------------- 15
8.1. Disassembly Instructions------------------------------- 15
9 Measurements and Adjustments -------------------------- 16
9.1. Equipment Required------------------------------------- 16
9.2. The Setting Method of JIG----------------------------- 16
9.2.1. Connections ------------------------------------------ 16
9.2.2. Commands-------------------------------------------- 17
9.3. Adjustment Standard  ----------------------------------- 18
9.3.1. Bottom View ------------------------------------------ 18
9.4. Clock adjustment after crystal replacement ------- 19
9.5. Frequency Table------------------------------------------ 19
10 Miscellaneous ---------------------------------------------------- 20
10.1. How to Replace the Flat Package IC --------------- 20
10.1.1. Preparation-------------------------------------------- 20
10.1.2. How to Remove the IC ----------------------------- 20
10.1.3. How to Install the IC -------------------------------- 20
10.1.4. How to Remove a Solder Bridge ---------------- 20
10.2. How to Replace the LLP (Leadless Leadframe
Package) IC and IC ground plate -------------------- 21
10.2.1. Preparation-------------------------------------------- 21
10.2.2. Caution------------------------------------------------- 21
10.2.3. How to Remove the IC ----------------------------- 21
10.2.4. How to Install the IC -------------------------------- 21
10.2.5. How to Remove a Solder Bridge (Doesn't
apply to IC ground plate.) ------------------------- 22
10.3. Terminal Guide of the ICs, Transistors and
Diodes------------------------------------------------------- 23
11 Schematic Diagram--------------------------------------------- 25
11.1. For Schematic Diagram -------------------------------- 25
11.2. Schematic Diagram  ------------------------------------ 26
12 Printed Circuit Board------------------------------------------ 29
12.1. Component View----------------------------------------- 29
12.2. Bottom View----------------------------------------------- 30
13 Exploded View and Replacement Parts List----------- 31
13.1. Cabinet and Electrical Parts -------------------------- 31
13.2. Accessories and Packing Materials----------------- 32
13.3. Replacement Parts List -------------------------------- 33
13.3.1. Cabinet and Electrical Parts --------------------- 33
13.3.2. Accessories and Packing Materials ------------ 33
13.3.3. Main P.C. Board Parts ----------------------------- 33
13.3.4. Fixtures and Tools ---------------------------------- 34
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