KX-FC968RU - Panasonic Fax Service Manual (repair manual). Page 3

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12.2.2. Cordless Handset------------------------------------76

12.3. Error Messages-Report ---------------------------------77

12.3.1. Journal Report----------------------------------------77
12.3.2. Special Service Journal Reports -----------------86
12.3.3. Communication Section----------------------------89

12.4. Remote Programming -----------------------------------98

12.4.1. Entering the Remote Programming Mode

and Changing Service Codes --------------------98

12.4.2. Program Mode Table--------------------------------99

12.5. Troubleshooting Details ------------------------------- 101

12.5.1. Outline ------------------------------------------------ 101
12.5.2. Starting Troubleshooting ------------------------- 101
12.5.3. Troubleshooting Items Table -------------------- 102
12.5.4. ADF (Auto Document Feed) Section --------- 104
12.5.5. Digital Board Section------------------------------ 115
12.5.6. Analog Board Section ---------------------------- 122
12.5.7. Power Supply Board Section ------------------- 124
12.5.8. Operation Panel Section ------------------------- 127
12.5.9. Sensor Section ------------------------------------- 128

12.5.10. CIS (Contact Image Sensor) Section --------- 130

12.5.11. Thermal Head Section---------------------------- 131

12.5.12. Cordless Section----------------------------------- 132
12.5.13. Troubleshooting by Symptom (Cordless

Handset) --------------------------------------------- 136

13 Service Fixture & Tools-------------------------------------- 140
14 Disassembly and Assembly Instructions ------------- 141

14.1. Disassembly Flow Chart ------------------------------ 141

14.1.1. Upper Cabinet Section --------------------------- 141
14.1.2. Lower Cabinet Section --------------------------- 142
14.1.3. Cordless Handset Section----------------------- 142

14.2. Base Unit ------------------------------------------------- 143

14.2.1. How to Remove the Paper Stacker ----------- 143
14.2.2. How to Remove the Operation Panel

Block -------------------------------------------------- 144

14.2.3. How to Remove the Operation Board,

LCD, Micro Unit and Platen Roller ------------ 145

14.2.4. How to Remove the Separation Holder

and Document Feed Support ------------------- 146

14.2.5. How to Remove the Image Sensor (CIS)

and Feed Roller ------------------------------------ 147

14.2.6. How to Remove the Antenna and Cutter

Unit ---------------------------------------------------- 148

14.2.7. How to Remove the Lock Lever and

Thermal Head -------------------------------------- 149

14.2.8. How to Remove the Charge Board------------ 150
14.2.9. How to Remove the Bottom Frame ----------- 151

14.2.10. How to Remove the Analog Board, Digital

Board, Power Supply Board and Power
Cord --------------------------------------------------- 152

14.2.11. How to Remove the Gear Block and

Separation Roller ---------------------------------- 153

14.2.12. How to Remove the Motor of Gear------------ 153
14.2.13. Installation Position of the Lead Wires ------- 154

14.3. Cordless Handset -------------------------------------- 155

14.3.1. How to Remove the Cordless Handset

Board ------------------------------------------------- 155

15 Measurements and Adjustments------------------------- 157

15.1. Cordless Base Section (Digital Board)

Adjustment ----------------------------------------------- 157

15.1.1. Equipment Required  ----------------------------- 157
15.1.2. PC Setting ------------------------------------------- 157

15.1.3. How to Adjust -------------------------------------- 158
15.1.4. Frequency and Voltage Adjustment ---------- 159

15.2. Adjustment Standard (Base Unit) ------------------ 160

15.2.1. Component View ---------------------------------- 160
15.2.2. Bottom view----------------------------------------- 161

15.3. The Setting Method of JIG (Cordless

Handset)-------------------------------------------------- 162

15.3.1. Preparation------------------------------------------ 162
15.3.2. Connections ---------------------------------------- 162

15.4. Adjustment Standard (Cordless Handset) ------- 164

15.4.1. Component View ---------------------------------- 164

15.5. Things to Do after Replacing IC -------------------- 165

15.5.1. Base Unit -------------------------------------------- 165
15.5.2. Cordless Handset --------------------------------- 166

15.6. RF Specification ---------------------------------------- 167

15.6.1. Base Unit -------------------------------------------- 167
15.6.2. Cordless Handset --------------------------------- 167

15.7. How to Check the Cordless Handset Speaker

or Receiver ---------------------------------------------- 168

15.8. Frequency Table (MHz)------------------------------- 168

16 Maintenance ---------------------------------------------------- 169

16.1. Maintenance Items and Component Locations- 169

16.1.1. Outline ----------------------------------------------- 169
16.1.2. Component Locations---------------------------- 169

16.2. Gear Section -------------------------------------------- 171

16.2.1. Mode Selection ------------------------------------ 171
16.2.2. Mode Operation ----------------------------------- 172
16.2.3. Mechanical Movements in the Main

Operations (transmitting documents,
receiving faxes and copying) ------------------- 175

16.3. Jams------------------------------------------------------- 178

16.3.1. Recording Paper Jams -------------------------- 178
16.3.2. Document Jams - Sending---------------------- 178

16.4. Cleaning -------------------------------------------------- 179

16.4.1. Document feeder/scanner glass cleaning--- 179
16.4.2. Thermal Head Cleaning ------------------------- 179

17 Miscellaneous-------------------------------------------------- 180

17.1. Terminal Guide of the ICs, Transistors and

Diodes ---------------------------------------------------- 180

17.1.1. Digital Board ---------------------------------------- 180
17.1.2. Analog Board--------------------------------------- 180
17.1.3. Operation Board/Microphone Board---------- 180
17.1.4. Power Supply Board------------------------------ 181
17.1.5. Interface Board ------------------------------------ 181
17.1.6. Charger Board ------------------------------------- 181
17.1.7. Cordless Handset Board ------------------------ 182

17.2. How to Replace the Flat Package IC ------------- 183

17.2.1. Preparation------------------------------------------ 183
17.2.2. Flat Package IC Removal Procedure -------- 183
17.2.3. Flat Package IC Installation Procedure------ 184
17.2.4. Bridge Modification Procedure----------------- 184

17.3. How to Replace the Shield Case------------------- 185

17.3.1. Preparation------------------------------------------ 185
17.3.2. How to Remove the Shield Case-------------- 185
17.3.3. How to Install the Shield Case ----------------- 186

17.4. Test Chart ------------------------------------------------ 187

17.4.1. ITU-T No.1 Test Chart---------------------------- 187
17.4.2. ITU-T No.2 Test Chart---------------------------- 188

18 Schematic Diagram ------------------------------------------ 190

18.1. Digital Board (PCB1) ---------------------------------- 190
18.2. Analog Board (PCB2) --------------------------------- 194