KX-FT982UA, KX-FT982UA, KX-FT984UA, KX-FT988UA, KX-FT988UA - Panasonic Fax Service Manual (repair manual). Page 3

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1 Safety Precautions----------------------------------------------- 4

1.1. For Service Technicians --------------------------------- 4
1.2. AC Caution -------------------------------------------------- 4
1.3. Personal Safety Precautions --------------------------- 5
1.4. Service Precautions--------------------------------------- 6

2 Warning -------------------------------------------------------------- 7

2.1. About Lead Free Solder (PbF: Pb free)-------------- 7
2.2. Insulation Resistance Test ------------------------------ 8
2.3. Battery Caution--------------------------------------------- 8
2.4. Discarding of P. C. Board-------------------------------- 8

3 Specifications ----------------------------------------------------- 9
4 General/Introduction -------------------------------------------10

4.1. Optional Accessories ------------------------------------10
4.2. Translation Lists-------------------------------------------10

5 Features ------------------------------------------------------------11
6 Technical Descriptions ----------------------------------------12

6.1. Connection Diagram -------------------------------------12
6.2. General Block ---------------------------------------------13
6.3. Control Section--------------------------------------------15
6.4. Facsimile Section-----------------------------------------21
6.5. Sensors and Switches-----------------------------------27
6.6. Modem Section -------------------------------------------31
6.7. NCU Section -----------------------------------------------38
6.8. ITS (Integrated Telephone System) and

Monitor Section -------------------------------------------41

6.9. TAM Interface Section (KX-FT982/KX-FT984

only)----------------------------------------------------------41

6.10. ATAS (Automatic Telephone Answering

System) Section (KX-FT988 only)--------------------42

6.11. Operation Board Section -------------------------------43

6.12. LCD Section -----------------------------------------------44
6.13. Power Supply Board Section --------------------------45

7 Location of Controls and Components ------------------48

7.1. Overview----------------------------------------------------48
7.2. Control Panel ----------------------------------------------48

8 Installation Instructions ---------------------------------------50

8.1. Installation Space-----------------------------------------50
8.2. Connections------------------------------------------------50
8.3. Installing the Recording Paper ------------------------51
8.4. Documents the Unit can Send ------------------------52

9 Operating Instructions-----------------------------------------52

9.1. Setting Logo -----------------------------------------------52
9.2. Character Entry -------------------------------------------53

10 Test Mode ----------------------------------------------------------54

10.1. DTMF Single Tone Transmit Selection--------------55
10.2. Button Code Table----------------------------------------56
10.3. Print Test Pattern -----------------------------------------57

11 Service Mode -----------------------------------------------------58

11.1. Programing and Lists ------------------------------------58
11.2. The Example of the Printed List ----------------------62

12 Troubleshooting Guide ----------------------------------------69

12.1. Troubleshooting Summary -----------------------------69
12.2. Error Messages-Display --------------------------------70
12.3. Error Messages-Report ---------------------------------72
12.4. Remote Programming -----------------------------------94
12.5. Troubleshooting Details ---------------------------------97

13 Service Fixture & Tools-------------------------------------- 129
14 Disassembly and Assembly Instructions ------------- 130

14.1. Upper Cabinet Section-------------------------------- 131
14.2. Lower Cabinet Section-------------------------------- 134
14.3. Operation Panel Section ---------------------------- 137
14.4. Installation Position of the Lead Wires------------ 140

15 Maintenance ---------------------------------------------------- 142

15.1. Maintenance Items and Component Locations- 142
15.2. Gear Section -------------------------------------------- 144
15.3. Jams------------------------------------------------------- 150
15.4. Cleaning -------------------------------------------------- 151

16 Miscellaneous-------------------------------------------------- 153

16.1. Terminal Guide of ICs Transistors and Diodes - 153
16.2. How to Replace the Flat Package IC ------------- 155
16.3. Test Chart ------------------------------------------------ 156

17 Schematic Diagram ------------------------------------------ 158

17.1. Digital Board (PCB1): KX-FT982/KX-FT984 ---- 158
17.2. Digital Board (PCB1): KX-FT988------------------- 162
17.3. Analog Board (PCB2): KX-FT982/KX-FT984 --- 166
17.4. Operation Board (PCB3/PCB203) ----------------- 168
17.5. Power Supply Board (PCB4)------------------------ 169

18 Printed Circuit Board ---------------------------------------- 171

18.1. Digital Board (PCB1) ---------------------------------- 171
18.2. Analog Board (PCB2)  -------------------------------- 173
18.3. Operation Board (PCB3/PCB203) ----------------- 175
18.4. Power Supply Board (PCB4)------------------------ 177

19 Appendix Information of Schematic Diagram ------- 178
20 Exploded View and Replacement Parts List --------- 179

20.1. Cabinet and Mechanical Parts Location---------- 179
20.2. Replacement Parts List------------------------------- 187