Read Panasonic KX-FT25LA Service Manual online
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
11
1.13. INSTALLATION
12
1.14. MAINTENANCE ITEMS AND COMPONENT LOCATIONS
15
2
TROUBLESHOOTING GUIDE
19
2.1.
TROUBLESHOOTING SUMMARY
19
2.2.
USER RECOVERABLE ERRORS
20
2.3.
TROUBLESHOOTING DETAILS
22
2.4.
PROGRAMMING AND LISTS
79
2.5.
TEST FUNCTIONS
86
3
ADJUSTMENTS
88
3.1.
ADJUSTING THE FEED PRESSURE
88
4
DISASSEMBLY INSTRUCTIONS
89
5
HOW TO REPLACE THE FLAT PACKAGE IC
100
5.1.
PREPARATION
100
5.2.
FLAT PACKAGE IC REMOVAL PROCEDURE
100
5.3.
FLAT PACKAGE IC INSTALLATION PROCEDURE 101
5.4.
BRIDGE MODIFICATION PROCEDURE
101
6
CIRCUIT OPERATIONS
102
6.1.
CONNECTION DIAGRAM
102
6.2.
GENERAL BLOCK DIAGRAM
103
6.3.
CONTROL SECTION
105
6.4.
FACSIMILE SECTION
113
6.5.
SENSORS AND SWITCHES
123
6.6.
MODEM SECTION
126
6.7.
Analog Unit Block Diagram
133
6.8.
NCU SECTION
134
6.9.
ITS (Integrated telephone System) and MONITOR
SECTION
136
6.10. ATAS (Automatic Telephone Answering System)
SECTION
136
6.11. OPERATION PANEL
138
6.12. POWER SUPPLY BOARD SECTION
140
7
FOR THE SCHEMATIC DIAGRAMS
142
8
PRINTED CIRCUIT BOARD
143
8.1.
PRINTED CIRCUIT BOARD (DIGITAL BOARD):
COMPONENT VIEW
143
8.2.
PRINTED CIRCUIT BOARD (DIGITAL BOARD): BOTTOM
VIEW
144
8.3.
PRINTED CIRCUIT BOARD (ANALOG BOARD):
COMPONENT VIEW
145
8.4.
PRINTED CIRCUIT BOARD (ANALOG BOARD):
BOTTOM VIEW
146
8.5.
PRINTED CIRCUIT BOARD (SWITCHING POWER
SUPPLY)
147
8.6.
PRINTED CIRCUIT BOARD (OPERATION BOARD) 148
9
SCHEMATIC DIAGRAM
149
9.1.
SCHEMATIC DIAGRAM (DIGITAL CIRCUIT)
149
9.2.
SCHEMATIC DIAGRAM (ANALOG CIRCUIT)
150
9.3.
SCHEMATIC DIAGRAM (SWITCHING POWER SUPPLY)
151
9.4.
SCHEMATIC DIAGRAM (OPERATION CIRCUIT)
152
10 TERMINAL GUIDE OF THE IC
·
S TRANSISTORS AND DIODES
153
11 FIXTURES AND TOOLS
154
12 CABINET, MECHANICAL AND ELECTRICAL PARTS
LOCATION
155
12.1. OPERATION PANEL SECTION
155
12.2. UPPER CABINET SECTION
156
12.3. LOWER CABINET/P.C.B. SECTION
157
12.4. MOTOR SECTION
158
12.5. ACTUAL SIZE OF SCREWS AND WASHER
159
13 ACCESSORIES AND PACKING MATERIALS
160
14 REPLACEMENT PARTS LIST
161
14.1. CABINET AND ELECTRICAL PARTS
161
14.2. DIGITAL BOARD PARTS
162
14.3. ANALOG BOARD PARTS
164
14.4. OPERATION BOARD PARTS
165
14.5. POWER SUPPLY BOARD PARTS
166
14.6. FIXTURES AND TOOLS
167
CONTENTS
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KX-FT25LA
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