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
4
1.7.
SERVICE PRECAUTIONS
5
1.8.
FEATURES
6
1.9.
SPECIFICATIONS
7
1.10. OPTIONAL ACCESSORIES
7
1.11. TEST CHART
8
1.12. LOCATION OF CONTROLS
10
1.13. CONNECTIONS
12
1.14. INSTALLATION
13
1.15. MAINTENANCE ITEMS AND COMPONENT LOCATIONS
22
2
TROUBLESHOOTING GUIDE
26
2.1.
TROUBLESHOOTING SUMMARY
26
2.2.
USER RECOVERABLE ERRORS
27
2.3.
TROUBLESHOOTING DETAILS
31
2.4.
PROGRAMMING AND LISTS
87
2.5.
TEST FUNCTIONS
99
3
DISASSEMBLY INSTRUCTIONS
105
3.1.
HOW TO REMOVE THE PAPER TRAY AND
DOCUMENT TRAY
105
3.2.
HOW TO REMOVE THE BOTTOM FRAME
106
3.3.
HOW TO REMOVE THE OPERATION PANEL BLOCK
107
3.4.
HOW TO REMOVE THE OPERATION BOARD, HOOK
SWITCH BOARD AND LCD
108
3.5.
HOW TO REMOVE THE THERMAL HEAD
110
3.6.
HOW TO REMOVE THE PLATEN ROLLER
111
3.7.
HOW TO REMOVE THE ANALOG, DIGITAL AND
POWER SUPPLY BOARDS AND AC INLET
112
3.8.
HOW TO REMOVE THE MOTOR BLOCK AND THE
WIND GEAR ASSEMBLY
113
3.9.
HOW TO REMOVE THE GEARS OF MOTOR BLOCK
114
3.10. HOW TO REMOVE THE SEPARATION ROLLER
115
3.11. HOW TO REMOVE THE IMAGE SENSOR (CIS) AND
DOCUMENT FEED ROLLERS
116
3.12. HOW TO REMOVE THE PICKUP ROLLER
117
3.13. INSTALLATION POSITION OF THE LEAD WIRES
118
4
HOW TO REPLACE THE FLAT PACKAGE IC
119
4.1.
PREPARATION
119
4.2.
FLAT PACKAGE IC REMOVAL PROCEDURE
119
4.3.
FLAT PACKAGE IC INSTALLATION PROCEDURE 120
4.4.
BRIDGE MODIFICATION PROCEDURE
120
5
CIRCUIT OPERATIONS
121
5.1.
CONNECTION DIAGRAM
121
5.2.
GENERAL BLOCK DIAGRAM
122
5.3.
CONTROL SECTION
124
5.4.
FACSIMILE SECTION
132
5.5.
SENSORS AND SWITCHES
146
5.6.
MODEM SECTION
151
5.7.
DESCRIPTION OF BLOCK DIAGRAM IN ANALOG
SECTION
158
5.8.
NCU SECTION
160
5.9.
ITS (Integrated Telephone System) AND MONITOR
SECTION
164
5.10. TAM INTERFACE SECTION
165
5.11. OPERATION BOARD SECTION
167
5.12. LCD SECTION
168
5.13. POWER SUPPLY BOARD SECTION
169
6
TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES
172
7
FIXTURES AND TOOLS
173
8
CABINET, MECHANICAL AND ELECTRICAL PARTS
LOCATION
174
8.1.
OPERATION PANEL SECTION
174
8.2.
UPPER CABINET SECTION
175
8.3.
LOWER CABINET / P.C.B. SECTION
177
8.4.
MOTOR SECTION
178
8.5.
ACTUAL SIZE OF SCREWS
179
9
ACCESSORIES AND PACKING MATERIALS
180
10 REPLACEMENT PARTS LIST
181
10.1. CABINET AND ELECTRICAL PARTS
181
10.2. DIGITAL BOARD PARTS
182
10.3. ANALOG BOARD PARTS
185
10.4. OPERATION BOARD PARTS
186
10.5. POWER SUPPLY BOARD PARTS
186
10.6. HOOK SWITCH BOARD PARTS
187
10.7. FIXTURES AND TOOLS
187
11 FOR THE SCHEMATIC DIAGRAMS
187
12 PRINTED CIRCUIT BOARD
188
12.1. DIGITAL BOARD (PCB1) : Bottom View
188
12.2. DIGITAL BOARD (PCB1) : Component View
189
12.3. ANALOG BOARD (PCB2) : Bottom View
190
12.4. ANALOG BOARD (PCB2) : Component View
191
12.5. OPERATION (PCB3) / HOOK SW (PCB5) BOARD:
Bottom View
192
12.6. OPERATION (PCB3) / HOOK SW (PCB5) BOARD:
Component View
193
12.7. POWER SUPPLY BOARD (PCB4) : Bottom View
194
12.8. POWER SUPPLY BOARD (PCB4) : Component View 195
13 SCHEMATIC DIAGRAM
196
13.1. DIGITAL BOARD (PCB1)
196
13.2. ANALOG BOARD (PCB2)
198
13.3. OPERATION (PCB3) / HOOK SW (PCB5) BOARD
199
13.4. POWER SUPPLY BOARD (PCB4)
200
CONTENTS
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Page
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KX-FHD301