KX-FC228UA-T, KX-FC228RU-T - Panasonic Fax Service Manual (repair manual). Page 2

2

PAGE

PAGE

1 Safety Precautions -----------------------------------------------3

1.1. For Service Technicians ----------------------------------3
1.2. AC Caution---------------------------------------------------3
1.3. Personal Safety Precautions ----------------------------4
1.4. Service Precautions ---------------------------------------5

2 Warning --------------------------------------------------------------6

2.1. About Lead Free Solder (PbF: Pb free) --------------6
2.2. Insulation Resistance Test -------------------------------7
2.3. Battery Caution ---------------------------------------------7

3 Specifications ------------------------------------------------------8

3.1. Base Unit-----------------------------------------------------8
3.2. Cordless Handset ------------------------------------------9

4 General/Introduction ------------------------------------------- 10

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

5 Features ------------------------------------------------------------ 12
6 Technical Descriptions---------------------------------------- 13

6.1. Connection Diagram------------------------------------- 13
6.2. General Block --------------------------------------------- 14
6.3. Control (Facsimile) Section---------------------------- 16
6.4. Facsimile Section ---------------------------------------- 19
6.5. Sensor and Switches------------------------------------ 26
6.6. Modem Section ------------------------------------------- 30
6.7. NCU Section----------------------------------------------- 37
6.8. ITS (Integrated Telephone System) and

Monitor Section  ------------------------------------------ 40

6.9. Transmitter / Receiver (Cordless)-------------------- 40

6.10. Operation Board Section ------------------------------- 41

6.11. LCD Section ----------------------------------------------- 42

6.12. Power Supply Board Section-------------------------- 43
6.13. Cordless Handset ---------------------------------------- 46

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

7.1. Overview --------------------------------------------------- 48
7.2. Control Panel---------------------------------------------- 49

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

8.1. Installation Space ---------------------------------------- 50
8.2. Connections ----------------------------------------------- 51
8.3. Battery Charge-------------------------------------------- 52
8.4. Installing the Ink film------------------------------------- 53
8.5. Installing the Paper Tray ------------------------------- 54
8.6. Paper support --------------------------------------------- 54
8.7. Installing the Recording Paper------------------------ 55
8.8. Battery Installation / Replacement ------------------- 56

9 Operation Instructions ---------------------------------------- 56

9.1. Setting Your Logo ---------------------------------------- 56
9.2. Cordless Handset Programming --------------------- 57

10 Test Mode---------------------------------------------------------- 58

10.1. Facsimile Section ---------------------------------------- 58

11 Service Mode ----------------------------------------------------- 61

11.1. Base Unit--------------------------------------------------- 61
11.2. Cordless Handset ---------------------------------------- 65
11.3. The Example of the Printed List ---------------------- 67

12 Troubleshooting Guide---------------------------------------- 72

12.1. Troubleshooting Summary----------------------------- 72
12.2. Error Messages-Display-------------------------------- 73
12.3. Error Messages-Report--------------------------------- 76
12.4. Remote Programming----------------------------------- 98
12.5. Troubleshooting Details ------------------------------ 101

13 Service Fixture & Tools-------------------------------------- 141
14 Disassembly and Assembly Instructions -------------142

14.1. General Section-----------------------------------------142
14.2. Disassembly Flowchart--------------------------------143
14.3. Disassembly Procedure-------------------------------146

15 Measurements and Adjustments-------------------------171

15.1. Cordless Base Section (Digital Board)

Adjustment -----------------------------------------------171

15.2. Adjustment Standard (Base Unit)-------------------175
15.3. The Setting Method of JIG (Cordless

Handset) --------------------------------------------------177

15.4. Adjustment Standard (Cordless Handset)--------179
15.5. Things to Do after Replacing IC--------------------- 180
15.6. RF Specification-----------------------------------------181
15.7. How to Check the Cordless Handset Speaker

or Receiver -----------------------------------------------182

15.8. Frequency Table (MHz) -------------------------------182

16 Maintenance-----------------------------------------------------183

16.1. Maintenance Items and Component Locations -183
16.2. Gear Section---------------------------------------------185
16.3. Jams ------------------------------------------------------- 192
16.4. Cleaning---------------------------------------------------194

17 Miscellaneous --------------------------------------------------196

17.1. Terminal Guide of the ICs, Transistors and

Diodes -----------------------------------------------------196

17.2. How to Replace the Flat Package IC --------------199
17.3. Test Chart-------------------------------------------------201

18 Schematic Diagram -------------------------------------------204

18.1. Digital Board (PCB1)-----------------------------------204
18.2. Analog Board (PCB2) ---------------------------------208
18.3. Operation Board (PCB3) / MIC Board (PCB9) --210
18.4. Power Supply Board (PCB4) ------------------------ 211
18.5. Interface Board (PCB5) -------------------------------212
18.6. Sensor Board (PCB6) ---------------------------------213
18.7. Film End Sensor Board (PCB7)--------------------- 213
18.8. Motor Position Sensor Board (PCB8) -------------213
18.9. Charger Board (PCB10) ------------------------------213

18.10. Cordless Handset Board (PCB100)----------------214

19 Printed Circuit Board-----------------------------------------217

19.1. Digital Board (PCB1)-----------------------------------217
19.2. Analog Board (PCB2) ---------------------------------219
19.3. Operation Board (PCB3) / MIC Board (PCB9) --221
19.4. Power Supply Board (PCB4) ------------------------222
19.5. Interface Board (PCB5) -------------------------------223
19.6. Sensor Board (PCB6) ---------------------------------223
19.7. Film End Sensor Board (PCB7)--------------------- 223
19.8. Motor Position Sensor Board (PCB8) -------------223
19.9. Charger Board (PCB10) ------------------------------224

19.10. Cordless Handset Board (PCB100)----------------225

20 Appendix Information of Schematic Diagram -------227

20.1. For Schematic Diagram-------------------------------227
20.2. CPU Data -------------------------------------------------228

21 Exploded View and Replacement Parts List----------233

21.1. Cabinet, Mechanical and Electrical Parts

Location ---------------------------------------------------233

21.2. Replacement Parts List -------------------------------244