Table Of Contents - Panasonic KX-TG8041RUM Service Manual

Digital cordless answering system
Table of Contents

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TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 4
1.1. For Service Technicians --------------------------------- 4
2 Warning -------------------------------------------------------------- 4
2.1. Battery Caution--------------------------------------------- 4
2.3. Discarding of P.C. Board--------------------------------- 5
3 Specifications ----------------------------------------------------- 6
4 Technical Descriptions ----------------------------------------- 7
4.1. Block Diagram (Base Unit) ------------------------------ 7
4.2. Circuit Operation (Base Unit) --------------------------- 8
4.3. Block Diagram (Handset)------------------------------- 11
4.4. Circuit Operation (Handset)----------------------------12
4.5. Circuit Operation (Charger Unit) ----------------------13
4.6. Signal Route -----------------------------------------------14
6 Installation Instructions ---------------------------------------16
7 Operating Instructions-----------------------------------------16
7.1. For Service Hint-------------------------------------------16
8 Service Mode -----------------------------------------------------17
8.1. Engineering Mode ----------------------------------------17
8.3. How to Clear User Setting------------------------------23
9 Troubleshooting Guide ----------------------------------------24
9.1. Troubleshooting Flowchart -----------------------------24
Charger Unit) ----------------------------------------------36
10.1. Disassembly Instructions -------------------------------44
11 Measurements and Adjustments---------------------------49
11.1. Equipment Required -------------------------------------49
11.6. Adjustment Standard (Handset) ----------------------55
11.8. RF Specification-------------------------------------------58
11.10. Frequency Table (MHz) ---------------------------------59
12 Miscellaneous ----------------------------------------------------60
12.2. How to Replace the LLP (Leadless Leadframe
Package) IC------------------------------------------------62
Diodes -------------------------------------------------------64
13 Schematic Diagram ---------------------------------------------65
13.1. For Schematic Diagram---------------------------------65
13.5. Schematic Diagram (Handset) ------------------------70
14 Printed Circuit Board-------------------------------------------73
14.1. Circuit Board (Base Unit_Main) -----------------------73
14.3. Circuit Board (Handset) ---------------------------------77
PAGE
14.4. Circuit Board (Charger Unit)--------------------------- 79
15.5. Replacement Part List ---------------------------------- 85
3
KX-TG8041RU/KX-TGA800RU
PAGE

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