Read Panasonic KX-FT502RU-B / KX-FT502RU-W / KX-FT504RU-B / KX-FT504RU-W Service Manual online
ORDER NO. KMF1012340CE
Personal Facsimile
Model No.
KX-FT502RU-B
KX-FT502RU-W
KX-FT504RU-B
KX-FT504RU-W
KX-FT502RU-W
KX-FT504RU-B
KX-FT504RU-W
B: Black version / W: White version
(for Russia)
(for Russia)
2
KX-FT502RU-B / KX-FT502RU-W / KX-FT504RU-B / KX-FT504RU-W
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------4
1.1. For Service Technicians ----------------------------------4
1.2. AC Caution---------------------------------------------------4
1.3. Personal Safety Precautions ----------------------------5
1.2. AC Caution---------------------------------------------------4
1.3. Personal Safety Precautions ----------------------------5
1.3.1. Moving Sections of the Unit-------------------------5
1.3.2. Live Electrical Sections ------------------------------5
1.3.2. Live Electrical Sections ------------------------------5
1.4. Service Precautions ---------------------------------------6
1.4.1. Precautions to Prevent Damage from
Static Electricity ----------------------------------------6
2 Warning --------------------------------------------------------------7
2.1. About Lead Free Solder (PbF: Pb free) --------------7
2.1.1. Suggested PBF Solder-------------------------------7
2.2. Insulation Resistance Test -------------------------------8
2.3. Battery Caution ---------------------------------------------8
2.4. Discarding of P. C. Board --------------------------------8
2.5. Note for Repairing------------------------------------------8
2.3. Battery Caution ---------------------------------------------8
2.4. Discarding of P. C. Board --------------------------------8
2.5. Note for Repairing------------------------------------------8
3 Specifications ------------------------------------------------------9
4 General/Introduction ------------------------------------------- 10
4 General/Introduction ------------------------------------------- 10
4.1. Translation Lists ------------------------------------------ 10
4.1.1. Error Messages-Display --------------------------- 10
4.1.2. Error Messages-Report ---------------------------- 10
4.1.2. Error Messages-Report ---------------------------- 10
5 Features ------------------------------------------------------------ 11
6 Technical Descriptions---------------------------------------- 12
6 Technical Descriptions---------------------------------------- 12
6.1. Connection Diagram------------------------------------- 12
6.2. General Block --------------------------------------------- 13
6.2. General Block --------------------------------------------- 13
6.2.1. General Block Diagram ---------------------------- 14
6.3. Control Section ------------------------------------------- 15
6.3.1. ASIC (IC1)--------------------------------------------- 15
6.3.2. Flash Memory (IC2)--------------------------------- 18
6.3.3. Dynamic RAM (IC4) -------------------------------- 18
6.3.4. Reset Circuit (Watch dog timer) ----------------- 18
6.3.5. RTC Back up Circuit -------------------------------- 19
6.3.6. Supervision Circuit for the Thermal Head
6.3.2. Flash Memory (IC2)--------------------------------- 18
6.3.3. Dynamic RAM (IC4) -------------------------------- 18
6.3.4. Reset Circuit (Watch dog timer) ----------------- 18
6.3.5. RTC Back up Circuit -------------------------------- 19
6.3.6. Supervision Circuit for the Thermal Head
Temperature ------------------------------------------ 20
6.4. Facsimile Section ---------------------------------------- 21
6.4.1. Image Data Flow During Facsimile
Operation ---------------------------------------------- 21
6.4.2. Block Diagram---------------------------------------- 22
6.4.3. Thermal Head ---------------------------------------- 23
6.4.4. Scanning Block -------------------------------------- 25
6.4.5. Stepping Motor Drive Circuit---------------------- 26
6.4.3. Thermal Head ---------------------------------------- 23
6.4.4. Scanning Block -------------------------------------- 25
6.4.5. Stepping Motor Drive Circuit---------------------- 26
6.5. Sensors and Switches ---------------------------------- 27
6.5.1. Motor Position Sensor------------------------------ 28
6.5.2. Cutter Position Sensor (KX-FT504 only) ------ 28
6.5.3. Cover Open / Paper Sensor (SW101) --------- 28
6.5.4. Hook Sensor (SW102) ----------------------------- 29
6.5.5. Jam Sensor (SW103) ------------------------------ 29
6.5.6. Document Top Sensor (SW338)----------------- 30
6.5.7. Document Set Sensor (SW339) ----------------- 30
6.5.2. Cutter Position Sensor (KX-FT504 only) ------ 28
6.5.3. Cover Open / Paper Sensor (SW101) --------- 28
6.5.4. Hook Sensor (SW102) ----------------------------- 29
6.5.5. Jam Sensor (SW103) ------------------------------ 29
6.5.6. Document Top Sensor (SW338)----------------- 30
6.5.7. Document Set Sensor (SW339) ----------------- 30
6.6. Modem Section ------------------------------------------- 31
6.6.1. Function------------------------------------------------ 31
6.6.2. Modem Circuit Operation-------------------------- 37
6.6.2. Modem Circuit Operation-------------------------- 37
6.7. NCU Section----------------------------------------------- 38
6.7.1. General ------------------------------------------------ 38
6.7.2. Bell Detection Circuit ------------------------------- 38
6.7.3. ON/OFF Hook Circuit------------------------------- 38
6.7.4. Pulse Dial Circuit ------------------------------------ 38
6.7.5. Line Amplifier and Side Tone Circuits ---------- 39
6.7.2. Bell Detection Circuit ------------------------------- 38
6.7.3. ON/OFF Hook Circuit------------------------------- 38
6.7.4. Pulse Dial Circuit ------------------------------------ 38
6.7.5. Line Amplifier and Side Tone Circuits ---------- 39
6.7.6. Calling Line Identification Circuit (Russian
CID) ---------------------------------------------------- 40
6.7.7. Calling Line Identification Circuit (DTMF)----- 41
6.8. ITS (Integrated Telephone System) and
Monitor Section------------------------------------------- 42
6.8.1. General ------------------------------------------------ 42
6.8.2. Telephone Monitor ---------------------------------- 42
6.8.3. Handset Circuit -------------------------------------- 42
6.8.4. Monitor Circuit for Each Signals----------------- 42
6.8.2. Telephone Monitor ---------------------------------- 42
6.8.3. Handset Circuit -------------------------------------- 42
6.8.4. Monitor Circuit for Each Signals----------------- 42
6.9. Operation Board Section ------------------------------ 42
6.10. LCD Section----------------------------------------------- 44
6.11. Power Supply Board Section ------------------------- 45
7 Location of Controls and Components ----------------- 48
7.1. Overview --------------------------------------------------- 48
7.2. Control Panel --------------------------------------------- 48
7.2. Control Panel --------------------------------------------- 48
8 Installation Instructions -------------------------------------- 49
8.1. Installation Space ---------------------------------------- 49
8.2. Connections----------------------------------------------- 49
8.3. Installing the Recording Paper ----------------------- 50
8.4. Documents the Unit can Send------------------------ 51
8.2. Connections----------------------------------------------- 49
8.3. Installing the Recording Paper ----------------------- 50
8.4. Documents the Unit can Send------------------------ 51
9 Operating Instructions---------------------------------------- 51
9.1. Setting Logo----------------------------------------------- 51
10 Test Mode --------------------------------------------------------- 52
10.1. DTMF Single Tone Transmit Selection ------------- 53
10.2. Button Code Table--------------------------------------- 53
10.3. Print Test Pattern ---------------------------------------- 54
10.2. Button Code Table--------------------------------------- 53
10.3. Print Test Pattern ---------------------------------------- 54
11 Service Mode----------------------------------------------------- 55
11.1. Programing and Lists ----------------------------------- 55
11.1.1. Operation --------------------------------------------- 55
11.1.2. Operation Flow -------------------------------------- 55
11.1.3. Service Function Table ---------------------------- 56
11.1.4. Memory Clear Specification ---------------------- 58
11.1.2. Operation Flow -------------------------------------- 55
11.1.3. Service Function Table ---------------------------- 56
11.1.4. Memory Clear Specification ---------------------- 58
11.2. The Example of the Printed List --------------------- 59
11.2.1. User Mode ------------------------------------------- 59
11.2.2. Service Mode Settings----------------------------- 61
11.2.3. History ------------------------------------------------- 62
11.2.2. Service Mode Settings----------------------------- 61
11.2.3. History ------------------------------------------------- 62
12 Troubleshooting Guide --------------------------------------- 64
12.1. Troubleshooting Summary ---------------------------- 64
12.1.1. Precautions------------------------------------------- 64
12.2. Error Messages-Display ------------------------------- 65
12.3. Error Messages-Report -------------------------------- 66
12.3. Error Messages-Report -------------------------------- 66
12.3.1. Journal Report --------------------------------------- 66
12.3.2. Special Service Journal Report------------------ 75
12.3.3. Communication Section --------------------------- 79
12.3.2. Special Service Journal Report------------------ 75
12.3.3. Communication Section --------------------------- 79
12.4. Remote Programming ---------------------------------- 88
12.4.1. Entering the Remote Programming Mode
and Changing Service Codes-------------------- 88
12.4.2. Program Mode Table------------------------------- 89
12.5. Troubleshooting Details -------------------------------- 91
12.5.1. Outline ------------------------------------------------- 91
12.5.2. Starting Troubleshooting -------------------------- 91
12.5.3. Troubleshooting Items ----------------------------- 92
12.5.4. ADF (Auto Document Feed) Section----------- 93
12.5.5. Communication Section --------------------------100
12.5.6. Digital Board Section------------------------------101
12.5.7. Analog Board Section-----------------------------109
12.5.8. Power Supply Board Section ------------------- 111
12.5.9. Operation Panel Section ------------------------- 114
12.5.2. Starting Troubleshooting -------------------------- 91
12.5.3. Troubleshooting Items ----------------------------- 92
12.5.4. ADF (Auto Document Feed) Section----------- 93
12.5.5. Communication Section --------------------------100
12.5.6. Digital Board Section------------------------------101
12.5.7. Analog Board Section-----------------------------109
12.5.8. Power Supply Board Section ------------------- 111
12.5.9. Operation Panel Section ------------------------- 114
3
KX-FT502RU-B / KX-FT502RU-W / KX-FT504RU-B / KX-FT504RU-W
12.5.10. Sensor Section ------------------------------------- 115
12.5.11. CIS (Contact Image Sensor) Section --------- 117
12.5.12. Thermal Head Section---------------------------- 118
13 Service Fixture & Tools-------------------------------------- 119
14 Disassembly and Assembly Instructions ------------- 120
14 Disassembly and Assembly Instructions ------------- 120
14.1. Upper Cabinet Section -------------------------------- 121
14.1.1. How to Remove the Image Sensor (CIS)
and Feed Roller ------------------------------------ 121
14.1.2. How to Remove the Cutter Unit (KX-
FT504 only) ----------------------------------------- 122
14.1.3. How to Remove the Lock Lever and
Thermal Head -------------------------------------- 123
14.2. Lower Cabinet Section -------------------------------- 124
14.2.1. How to Remove the Bottom Frame ----------- 124
14.2.2. How to Remove the P. C. Boards and
14.2.2. How to Remove the P. C. Boards and
Power Cord------------------------------------------ 125
14.2.3. How to Remove the Gear Block and
Separation Roller ---------------------------------- 126
14.2.4. How to Remove the Motor of Gear Block---- 126
14.3. Operation Panel Section ----------------------------- 127
14.3.1. How to Remove the Operation Panel
Block -------------------------------------------------- 127
14.3.2. How to Remove the Operation Board,
LCD and Platen Roller---------------------------- 128
14.3.3. How to Remove the Separation Rubber
Flap---------------------------------------------------- 129
14.4. Installation Position of the Lead Wires ------------ 130
15 Maintenance----------------------------------------------------- 132
15.1. Maintenance Items and Component Locations - 132
15.1.1. Outline ------------------------------------------------ 132
15.1.2. Component Locations ---------------------------- 132
15.1.3. Maintenance List----------------------------------- 133
15.1.4. Maintenance Cycle -------------------------------- 133
15.1.2. Component Locations ---------------------------- 132
15.1.3. Maintenance List----------------------------------- 133
15.1.4. Maintenance Cycle -------------------------------- 133
15.2. Gear Section--------------------------------------------- 134
15.2.1. Mode Selection------------------------------------- 134
15.2.2. Mode Operation ------------------------------------ 135
15.2.3. Mechanical Movements in the Main
15.2.2. Mode Operation ------------------------------------ 135
15.2.3. Mechanical Movements in the Main
Operations------------------------------------------- 137
15.3. Jams ------------------------------------------------------- 140
15.3.1. Recording Paper Jams --------------------------- 140
15.3.2. Document Jams Sending ------------------------ 141
15.3.2. Document Jams Sending ------------------------ 141
15.4. Cleaning -------------------------------------------------- 141
15.4.1. Document Feeder/Scanner Glass
Cleaning---------------------------------------------- 141
15.4.2. Thermal Head Cleaning-------------------------- 142
16 Miscellaneous -------------------------------------------------- 143
16.1. Terminal Guide of ICs Transistors and Diodes-- 143
16.1.1. Digital Board ---------------------------------------- 143
16.1.2. Analog Board --------------------------------------- 143
16.1.3. Operation Board ----------------------------------- 144
16.1.4. Power Supply Board ------------------------------ 144
16.1.2. Analog Board --------------------------------------- 143
16.1.3. Operation Board ----------------------------------- 144
16.1.4. Power Supply Board ------------------------------ 144
16.2. How to Replace the Flat Package IC-------------- 145
16.2.1. Preparation ------------------------------------------ 145
16.2.2. Flat Package IC Removal Procedure--------- 145
16.2.3. Flat Package IC Installation Procedure ------ 145
16.2.4. Bridge Modification Procedure ----------------- 145
16.2.2. Flat Package IC Removal Procedure--------- 145
16.2.3. Flat Package IC Installation Procedure ------ 145
16.2.4. Bridge Modification Procedure ----------------- 145
16.3. Test Chart------------------------------------------------- 146
16.3.1. ITU-T No.1 Test Chart ---------------------------- 146
16.3.2. ITU-T No.2 Test Chart ---------------------------- 147
16.3.2. ITU-T No.2 Test Chart ---------------------------- 147
17 Schematic Diagram ------------------------------------------- 148
17.1. Digital Board (PCB1) (KX-FT502) ------------------ 148
17.2. Digital Board (PCB1) (KX-FT504) ----------------- 150
17.3. Analog Board (PCB2) --------------------------------- 152
17.4. Operation Board (PCB3) ----------------------------- 154
17.5. Power Supply Board (PCB4)------------------------ 155
17.3. Analog Board (PCB2) --------------------------------- 152
17.4. Operation Board (PCB3) ----------------------------- 154
17.5. Power Supply Board (PCB4)------------------------ 155
18 Printed Circuit Board ---------------------------------------- 157
18.1. Digital Board (PCB1) ---------------------------------- 157
18.1.1. Component View ---------------------------------- 157
18.1.2. Bottom View ---------------------------------------- 158
18.1.2. Bottom View ---------------------------------------- 158
18.2. Analog Board (PCB2) -------------------------------- 159
18.2.1. Component View --------------------------------- 159
18.2.2. Bottom View ---------------------------------------- 160
18.2.2. Bottom View ---------------------------------------- 160
18.3. Operation Board (PCB3) ----------------------------- 161
18.4. Power Supply Board (PCB4)------------------------ 162
18.4. Power Supply Board (PCB4)------------------------ 162
19 Appendix Information of Schematic Diagram ------- 163
20 Exploded View and Replacement Parts List --------- 164
20 Exploded View and Replacement Parts List --------- 164
20.1. Cabinet and Mechanical Parts Location---------- 166
20.1.1. Operation Panel Section ------------------------ 166
20.1.2. Upper Cabinet Section--------------------------- 168
20.1.3. Lower Cabinet Section--------------------------- 170
20.1.4. Bottom Cabinet Section ------------------------- 172
20.1.5. Gear Block Section ------------------------------- 174
20.1.6. Screws ----------------------------------------------- 176
20.1.7. Accessories and Packing Materials ---------- 178
20.1.2. Upper Cabinet Section--------------------------- 168
20.1.3. Lower Cabinet Section--------------------------- 170
20.1.4. Bottom Cabinet Section ------------------------- 172
20.1.5. Gear Block Section ------------------------------- 174
20.1.6. Screws ----------------------------------------------- 176
20.1.7. Accessories and Packing Materials ---------- 178
20.2. Electrical Parts List ------------------------------------ 180
20.2.1. Digital Board Parts ------------------------------- 180
20.2.2. Analog Board Parts ------------------------------ 181
20.2.3. Operation Board Parts --------------------------- 182
20.2.4. Power Supply Board Parts---------------------- 183
20.2.2. Analog Board Parts ------------------------------ 181
20.2.3. Operation Board Parts --------------------------- 182
20.2.4. Power Supply Board Parts---------------------- 183
4
KX-FT502RU-B / KX-FT502RU-W / KX-FT504RU-B / KX-FT504RU-W
1 Safety Precautions
1. Before servicing, unplug the AC power cord to prevent an electric shock.
2. When replacing parts, use only the manufacturer's recommended components.
3. Check the condition of the power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, be sure to perform the following insulation resistance test to prevent
2. When replacing parts, use only the manufacturer's recommended components.
3. Check the condition of the power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, be sure to perform the following insulation resistance test to prevent
the customer from being exposed to shock hazards.
1.1.
For Service Technicians
• Repair service shall be provided in accordance with repair technology information such as service manual so as to pre-
vent fires, injury or electric shock, which can be caused by improper repair work.
1. When repair services are provided, neither the products nor their parts or members shall be remodeled.
2. If a lead wire assembly is supplied as a repair part, the lead wire assembly shall be replaced.
3. FASTON terminals shall be plugged straight in and unplugged straight.
2. If a lead wire assembly is supplied as a repair part, the lead wire assembly shall be replaced.
3. FASTON terminals shall be plugged straight in and unplugged straight.
• ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover plastic parts boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on worktable.
4. Do not grasp IC or LSI pins with bare fingers.
2. Ground the soldering irons.
3. Use a conductive mat on worktable.
4. Do not grasp IC or LSI pins with bare fingers.
1.2.
AC Caution
For safety, before closing the lower cabinet, please make sure of the following precautions.
1. The earth lead is fixed with the screw.
2. The AC lead is connected properly to power supply unit.
3. Wrap the earth lead around the core 5 times.
4. Wrap the AC lead around the core 5 times.
2. The AC lead is connected properly to power supply unit.
3. Wrap the earth lead around the core 5 times.
4. Wrap the AC lead around the core 5 times.
