3
KX-PRW120W/KX-PRWA10W
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 5
1.1. For Service Technicians --------------------------------- 5
2 Warning-------------------------------------------------------------- 5
2.1. Battery Caution--------------------------------------------- 5
2.2. About Lead Free Solder (Pbf: Pb free)--------------- 5
2.2.1. Suggested PbF Solder ------------------------------ 6
2.3. Discarding of P.C. Board--------------------------------- 6
3 Specifications ----------------------------------------------------- 7
4 Technical Descriptions-----------------------------------------8
4.1. US-DECT Description------------------------------------8
4.1.1. TDD Frame Format ---------------------------------- 8
4.1.2. TDMA system------------------------------------------ 8
4.1.3. Signal Flowchart in the Radio Parts-------------- 9
4.2. Block Diagram (Base Unit)-----------------------------10
4.3. Circuit Operation (Base Unit)--------------------------11
4.3.1. Outline--------------------------------------------------11
4.4. Circuit Operation (Base Unit)--------------------------12
4.4.1. BBIC (Base Band IC: IC501) ---------------------12
4.4.2. Flash Memory (IC601) -----------------------------12
4.4.3. EEPROM (IC502)------------------------------------12
4.4.4. Power Supply Circuit--------------------------------13
4.4.5. Telephone Line Interface---------------------------14
4.4.6. Transmitter/Receiver--------------------------------14
4.4.7. WiFi Module-------------------------------------------14
4.4.8. Parallel Connection Detect Circuit/Auto
Disconnect Circuit -----------------------------------14
4.4.9. Calling Line Identification (Caller ID)/Call
Waiting Caller ID-------------------------------------15
4.5. Block Diagram (Handset)------------------------------- 17
4.6. Circuit Operation (Handset)---------------------------- 18
4.6.1. Outline--------------------------------------------------18
4.6.2. Power Supply Circuit/Reset Circuit--------------18
4.6.3. Charge Circuit ----------------------------------------18
4.6.4. Battery Low/Power Down Detector--------------18
4.6.5. Speakerphone----------------------------------------19
4.7. Signal Route-----------------------------------------------20
5 Location of Controls and Components ------------------22
6 Installation Instructions---------------------------------------22
7 Operating Instructions-----------------------------------------22
7.1. For Service Hint-------------------------------------------22
8 Service Mode -----------------------------------------------------23
8.1. Engineering Mode----------------------------------------23
8.1.1. Base Unit ----------------------------------------------23
8.1.2. Handset ------------------------------------------------25
8.2. EEPROM LAYOUT (Handset)-------------------------27
8.2.1. Scope---------------------------------------------------27
8.2.2. Introduction--------------------------------------------27
8.2.3. EEPROM contents ----------------------------------27
8.3. How to Clear User Setting------------------------------28
8.3.1. Resetting both base unit and handset----------28
8.3.2. Resetting only handset-----------------------------28
9 Troubleshooting Guide----------------------------------------29
9.1. Troubleshooting Flowchart-----------------------------29
9.1.1. Check Power------------------------------------------30
9.1.2. Check Wi-Fi -------------------------------------------31
9.1.3. Check Battery Charge------------------------------32
9.1.4. Check Link---------------------------------------------33
9.1.5. Check the RF part -----------------------------------36
9.1.6. Check Handset Transmission--------------------39
9.1.7. Check Handset Reception------------------------39
9.1.8. Check Caller ID-------------------------------------- 39
9.1.9. Bell Reception---------------------------------------- 40
9.1.10. Check TAM Operation------------------------------ 40
9.2. Troubleshooting by Symptom (Base Unit and
Charger Unit)---------------------------------------------- 41
9.2.1. Check Point (Base Unit)--------------------------- 41
9.3. Troubleshooting by Symptom (Handset)----------- 43
9.3.1. Check Point (Handset)-----------------------------43
9.3.2. Troubleshooting for Speakerphone -------------46
10 Disassembly and Assembly Instructions---------------47
10.1. Disassembly Instructions-------------------------------47
10.1.1. Base Unit---------------------------------------------- 47
10.1.2. Handset------------------------------------------------49
10.1.3. Charger Unit------------------------------------------ 50
10.2. How to Replace the Handset LCD-------------------51
11 Measurements and Adjustments --------------------------52
11.1. Equipment Required ------------------------------------ 52
11.2. The Setting Method of JIG (Base Unit)------------- 52
11.2.1. Connections ------------------------------------------52
11.2.2. How to install Batch file into P.C.---------------- 53
11.2.3. Commands--------------------------------------------53
11.3. Adjustment Standard (Base Unit)-------------------- 54
11.3.1. Bottom View ------------------------------------------54
11.4. The Setting Method of JIG (Handset)--------------- 55
11.4.1. Connections ------------------------------------------55
11.4.2. How to install Batch file into P.C.---------------- 56
11.4.3. Commands--------------------------------------------56
11.5. Adjustment Standard (Handset)---------------------- 57
11.5.1. Component View ------------------------------------57
11.6. Things to Do after Replacing IC or X'tal------------ 58
11.6.1. How to download the data ------------------------ 58
11.7. RF Specification------------------------------------------60
11.7.1. Base Unit----------------------------------------------60
11.7.2. Handset------------------------------------------------ 60
11.8. Frequency Table------------------------------------------60
11.9. How to Check the Handset Speaker or
Receiver----------------------------------------------------61
11.10. Frequency Table (MHz)--------------------------------- 61
11.11. Confirm WiFi connection after replacing IC800--- 62
11.11.1. Frequency and Power Level of WiFi
Module -------------------------------------------------62
12 Miscellaneous----------------------------------------------------65
12.1. How to Replace the Flat Package IC --------------- 65
12.1.1. Preparation--------------------------------------------65
12.1.2. How to Remove the IC-----------------------------65
12.1.3. How to Install the IC--------------------------------66
12.1.4. How to Remove a Solder Bridge----------------66
12.2. How to Replace the Shield Case---------------------67
12.2.1. Preparation--------------------------------------------67
12.2.2. Caution------------------------------------------------- 67
12.2.3. How to Remove the Shield Case---------------- 67
12.2.4. How to Install the Shield Case------------------- 68
12.3. Terminal Guide of the ICs, Transistors, Diodes
and Electrolytic Capacitors ----------------------------69
12.3.1. Base Unit---------------------------------------------- 69
12.3.2. Handset------------------------------------------------69