Panasonic KX-FT21RS - Manual (Page 2)

1 INTRODUCTION 3
1.1. SAFETY PRECAUTIONS 3
1.2. INSULATION RESISTANCE TEST 3
1.3. FOR SERVICE TECHNICIANS 3
1.4. BATTERY CAUTION 3
1.5. AC CAUTION 4
1.6. PERSONAL SAFETY PRECAUTIONS 5
1.7. FEATURES 6
1.8. SPECIFICATIONS 7
1.9. OPTIONAL ACCESSORIES 7
1.10. CCITT No. 1 TEST CHART 8
1.11. LOCATION OF CONTROLS 9
1.12. CONNECTIONS 10
1.13. INSTALLATION 11
1.14. MAINTENANCE ITEMS AND COMPONENT LOCATIONS
14
2 TROUBLESHOOTING GUIDE 18
2.1. TROUBLESHOOTING SUMMARY 18
2.2. USER RECOVERABLE ERRORS 19
2.3. TROUBLESHOOTING DETAILS 21
2.4. PROGRAMMING AND LISTS 74
2.5. TEST FUNCTIONS 79
2.6. JOURNAL 3 81
3 ADJUSTMENTS 83
3.1. ADJUSTING THE FEED PRESSURE 83
4 DISASSEMBLY INSTRUCTIONS 84
5 HOW TO REPLACE THE FLAT PACKAGE IC 95
5.1. PREPARATION 95
5.2. FLAT PACKAGE IC REMOVAL PROCEDURE 95
5.3. FLAT PACKAGE IC INSTALLATION PROCEDURE 96
5.4. BRIDGE MODIFICATION PROCEDURE 96
6 CIRCUIT OPERATIONS 97
6.1. CONNECTION DIAGRAM 97
6.2. GENERAL BLOCK DIAGRAM 98
6.3. CONTROL SECTION 100
6.4. FACSIMILE SECTION 109
6.5. SENSORS AND SWITCHES 119
6.6. MODEM SECTION 122
6.7. Analog Unit Block Diagram 129
6.8. NCU SECTION 130
6.9. ITS (Integrated telephone System) and MONITOR
SECTION 132
6.10. EXT. TEL 133
6.11. OPERATION PANEL 135
6.12. POWER SUPPLY BOARD SECTION 137
7 FOR THE SCHEMATIC DIAGRAMS 140
8 PRINTED CIRCUIT BOARD 141
8.1. PRINTED CIRCUIT BOARD (DIGITAL BOARD):
COMPONENT VIEW 141
8.2. PRINTED CIRCUIT BOARD (DIGITAL BOARD): BOTTOM
VIEW 142
8.3. PRINTED CIRCUIT BOARD (ANALOG BOARD):
COMPONENT VIEW 143
8.4. PRINTED CIRCUIT BOARD (ANALOG BOARD):
BOTTOM VIEW 144
8.5. PRINTED CIRCUIT BOARD (SWITCHING POWER
SUPPLY) 145
8.6. PRINTED CIRCUIT BOARD (OPERATION BOARD) 146
9 SCHEMATIC DIAGRAM 147
9.1. SCHEMATIC DIAGRAM (DIGITAL CIRCUIT) 147
9.2. SCHEMATIC DIAGRAM (ANALOG CIRCUIT) 148
9.3. SCHEMATIC DIAGRAM (SWITCHING POWER SUPPLY)
149
9.4. SCHEMATIC DIAGRAM (OPERATION CIRCUIT) 150
10 TERMINAL GUIDE OF THE IC · S TRANSISTORS AND DIODES
151
11 FIXTURES AND TOOLS 152
12 CABINET, MECHANICAL AND ELECTRICAL PARTS
LOCATION 153
12.1. OPERATION PANEL SECTION 153
12.2. UPPER CABINET SECTION 154
12.3. LOWER CABINET/P.C.B. SECTION 155
12.4. MOTOR SECTION 156
12.5. ACTUAL SIZE OF SCREWS AND WASHER 157
13 ACCESSORIES AND PACKING MATERIALS 158
14 REPLACEMENT PARTS LIST 159
14.1. CABINET AND ELECTRICAL PARTS 159
14.2. DIGITAL BOARD PARTS 160
14.3. ANALOG BOARD PARTS 162
14.4. OPERATION BOARD PARTS 164
14.5. POWER SUPPLY BOARD PARTS 165
14.6. FIXTURES AND TOOLS 166
CONTENTS
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KX-FT21RS