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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
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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
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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