KX-FC253UA-T, KX-FC258RU-T - Panasonic Fax Service Manual (repair manual). Page 2

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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. Disposal Cautions------------------------------------------8

3 Specifications ------------------------------------------------------9

3.1. Base Unit-----------------------------------------------------9
3.2. Cordless Handset ---------------------------------------- 10
3.3. Charger Unit----------------------------------------------- 10

4 General/Introduction ------------------------------------------- 11

4.1. Optional Accessories------------------------------------ 11
4.2. Translation Lists ------------------------------------------ 11

5 Features ------------------------------------------------------------ 14
6 Technical Descriptions---------------------------------------- 15

6.1. Connection Diagram------------------------------------- 15
6.2. General Block --------------------------------------------- 16
6.3. Control (Facsimile) Section---------------------------- 18
6.4. Facsimile Section ---------------------------------------- 21
6.5. Sensor and Switches------------------------------------ 28
6.6. Modem Section ------------------------------------------- 33
6.7. NCU Section----------------------------------------------- 40
6.8. ITS (Integrated Telephone System) and

Monitor Section  ------------------------------------------ 43

6.9. Transmitter / Receiver (Cordless)-------------------- 43

6.10. Operation Board Section ------------------------------- 44

6.11. LCD Section ----------------------------------------------- 45

6.12. Power Supply Board Section-------------------------- 46
6.13. Cordless Handset ---------------------------------------- 49

7 Location of Controls and Components------------------ 51

7.1. Overview --------------------------------------------------- 51
7.2. Control Panel---------------------------------------------- 52

8 Installation Instructions--------------------------------------- 55

8.1. Installation Space ---------------------------------------- 55
8.2. Connections ----------------------------------------------- 55
8.3. Battery Charge-------------------------------------------- 56
8.4. Installing the Ink film------------------------------------- 57
8.5. Installing the Paper Tray ------------------------------- 58
8.6. Installing the Recording Paper------------------------ 59
8.7. Battery Installation / Replacement ------------------- 60

9 Operation Instructions ---------------------------------------- 60

9.1. Setting Your Logo ---------------------------------------- 60
9.2. Cordless Handset Programming --------------------- 61

10 Test Mode---------------------------------------------------------- 63

10.1. Facsimile Section ---------------------------------------- 63

11 Service Mode ----------------------------------------------------- 66

11.1. Base Unit--------------------------------------------------- 66
11.2. Cordless Handset ---------------------------------------- 70
11.3. The Example of the Printed List ---------------------- 72

12 Troubleshooting Guide---------------------------------------- 77

12.1. Troubleshooting Summary----------------------------- 77
12.2. Error Messages-Display-------------------------------- 78
12.3. Error Messages-Report--------------------------------- 81
12.4. Remote Programming--------------------------------- 103

12.5. Troubleshooting Details -------------------------------106

13 Service Fixture & Tools-------------------------------------- 146
14 Disassembly and Assembly Instructions -------------147

14.1. General Section-----------------------------------------147
14.2. Disassembly Flowchart--------------------------------148
14.3. Disassembly Procedure-------------------------------151

15 Measurements and Adjustments-------------------------177

15.1. Cordless Base Section (Digital Board)

Adjustment -----------------------------------------------177

15.2. Adjustment Standard (Base Unit)-------------------181
15.3. Adjustment Standard (Charger Unit)---------------183
15.4. The Setting Method of JIG (Cordless

Handset) --------------------------------------------------184

15.5. Adjustment Standard (Cordless Handset)--------186
15.6. Things to Do after Replacing IC--------------------- 187
15.7. RF Specification-----------------------------------------188
15.8. How to Check the Cordless Handset Speaker

or Receiver -----------------------------------------------189

15.9. Frequency Table (MHz) -------------------------------189

16 Maintenance-----------------------------------------------------190

16.1. Maintenance Items and Component Locations -190
16.2. Gear Section---------------------------------------------192
16.3. Jams ------------------------------------------------------- 199
16.4. Cleaning---------------------------------------------------201

17 Miscellaneous --------------------------------------------------203

17.1. Terminal Guide of the ICs, Transistors and

Diodes -----------------------------------------------------203

17.2. How to Replace the Flat Package IC --------------206
17.3. Test Chart-------------------------------------------------208

18 Schematic Diagram -------------------------------------------212

18.1. Digital Board (PCB1)-----------------------------------212
18.2. Analog Board (PCB2) ---------------------------------216
18.3. Operation Board (PCB3) / MIC Board (PCB9) --218
18.4. Power Supply Board (PCB4) ------------------------219
18.5. Interface Board (PCB5) -------------------------------220
18.6. Sensor Board (PCB6) ---------------------------------221
18.7. Film End Sensor Board (PCB7)--------------------- 221
18.8. Motor Position Sensor Board (PCB8) -------------221
18.9. Hook Switch Board (PCB10) ------------------------221

18.10. Cordless Handset Board (PCB100)----------------222

18.11. Charger Board (PCB200)-----------------------------224

19 Printed Circuit Board-----------------------------------------225

19.1. Digital Board (PCB1)-----------------------------------225
19.2. Analog Board (PCB2) ---------------------------------227
19.3. Operation Board (PCB3) / MIC Board (PCB9) --229
19.4. Power Supply Board (PCB4) ------------------------230
19.5. Interface Board (PCB5) -------------------------------231
19.6. Sensor Board (PCB6) ---------------------------------231
19.7. Film End Sensor Board (PCB7)--------------------- 231
19.8. Motor Position Sensor Board (PCB8) -------------231
19.9. Hook Switch Board (PCB10) ------------------------232

19.10. Cordless Handset Board (PCB100)----------------233

19.11. Charger Board (PCB200)-----------------------------235

20 Appendix Information of Schematic Diagram -------235

20.1. For Schematic Diagram-------------------------------235
20.2. CPU Data -------------------------------------------------236

21 Exploded View and Replacement Parts List----------241