Panasonic KX-MB1900UCB / KX-MB2020UCB (serv.man2) Service Manual ▷ View online
ORDER NO.KMF1007295CE
Multi-Function printer
Model No.
KX-MB1900UCB
KX-MB2020UCB
KX-MB2020UCB
(for Ukraine, Kazakhstan)
2
KX-MB1900UCB/KX-MB2020UCB
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------5
1.1. For Service Technicians ----------------------------------5
1.2. AC Caution---------------------------------------------------5
1.3. Personal Safety Precautions ----------------------------6
1.2. AC Caution---------------------------------------------------5
1.3. Personal Safety Precautions ----------------------------6
1.3.1. Moving Sections of the Unit-------------------------6
1.3.2. Live Electrical Sections ------------------------------6
1.3.2. Live Electrical Sections ------------------------------6
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. Discarding of P. C. Board --------------------------------8
2.3. Insulation Resistance Test -------------------------------8
2.4. Battery Caution ---------------------------------------------8
2.5. Laser Beam And Fuser Unit Section ------------------8
2.6. Note for Repairing------------------------------------------9
2.3. Insulation Resistance Test -------------------------------8
2.4. Battery Caution ---------------------------------------------8
2.5. Laser Beam And Fuser Unit Section ------------------8
2.6. Note for Repairing------------------------------------------9
3 Specifications ---------------------------------------------------- 10
4 General/Introduction ------------------------------------------- 11
4 General/Introduction ------------------------------------------- 11
4.1. Optional Accessories------------------------------------ 11
4.2. Translation Lists ------------------------------------------ 11
4.2. Translation Lists ------------------------------------------ 11
4.2.1. Help Function----------------------------------------- 11
4.2.2. Error Message (Report)---------------------------- 11
4.2.3. Error Message (Display)--------------------------- 12
4.2.2. Error Message (Report)---------------------------- 11
4.2.3. Error Message (Display)--------------------------- 12
5 Features ------------------------------------------------------------ 13
5.1. General Features----------------------------------------- 13
5.2. Hardware Requirements for Multi-Function
5.2. Hardware Requirements for Multi-Function
Software ---------------------------------------------------- 13
6 Technical Descriptions---------------------------------------- 14
6.1. Connection Diagram------------------------------------- 14
6.2. General Block Diagram--------------------------------- 15
6.3. Main Board Section-------------------------------------- 17
6.2. General Block Diagram--------------------------------- 15
6.3. Main Board Section-------------------------------------- 17
6.3.1. Data Flow---------------------------------------------- 17
6.3.2. RTC Backup Circuit--------------------------------- 26
6.3.3. Modem Circuit Operation (KX-MB2020
6.3.2. RTC Backup Circuit--------------------------------- 26
6.3.3. Modem Circuit Operation (KX-MB2020
ONLY) -------------------------------------------------- 27
6.3.4. TEL Line Section (KX-MB2020 ONLY) -------- 28
6.4. NCU Section (KX-MB2020 ONLY)------------------- 29
6.4.1. General ------------------------------------------------ 29
6.4.2. EXT. TEL. Line Relay (RLY100) ----------------- 29
6.4.3. Bell Detection Circuit ------------------------------- 29
6.4.4. Calling Line Identification Circuit (Russian
6.4.2. EXT. TEL. Line Relay (RLY100) ----------------- 29
6.4.3. Bell Detection Circuit ------------------------------- 29
6.4.4. Calling Line Identification Circuit (Russian
CID) ----------------------------------------------------- 30
6.4.5. Remote FAX Activation Circuit ------------------- 30
6.4.6. TAM Interface Circuit ------------------------------- 30
6.4.6. TAM Interface Circuit ------------------------------- 30
6.5. ITS (Integrated telephone System) and
Monitor Section (KX-MB2020 ONLY) --------------- 31
6.5.1. General ------------------------------------------------ 31
6.6. CIS Control Section-------------------------------------- 32
6.7. Motor Drive Section-------------------------------------- 33
6.7. Motor Drive Section-------------------------------------- 33
6.7.1. Engine Motor Control Circuit --------------------- 33
6.7.2. Scanner Motor Drive Circuit ---------------------- 34
6.7.2. Scanner Motor Drive Circuit ---------------------- 34
6.8. Timing chart and wave form of scanner
motors------------------------------------------------------- 37
6.8.1. Normal 1-2 phase excitation (half step)-------- 37
6.8.2. Flat torque 1-2 phase excitation (half step) --- 38
6.8.3. W1-2 phase excitation (Quarter step) ---------- 39
6.8.4. Drive mode of FB and ADF motor--------------- 40
6.8.2. Flat torque 1-2 phase excitation (half step) --- 38
6.8.3. W1-2 phase excitation (Quarter step) ---------- 39
6.8.4. Drive mode of FB and ADF motor--------------- 40
6.9. FAN Motor Section -------------------------------------- 40
6.9.1. General ------------------------------------------------ 40
6.9.2. Circuit Diagram of FAN ---------------------------- 41
6.9.3. Fan Control ------------------------------------------- 41
6.9.4. Control table------------------------------------------ 42
6.9.5. Waveform --------------------------------------------- 42
6.9.2. Circuit Diagram of FAN ---------------------------- 41
6.9.3. Fan Control ------------------------------------------- 41
6.9.4. Control table------------------------------------------ 42
6.9.5. Waveform --------------------------------------------- 42
6.10. Solenoid Driver Section -------------------------------- 43
6.11. LSU (Laser Scanning Unit) Section----------------- 44
6.12. Sensors and Switches Section----------------------- 46
6.12.1. Drum Detection ------------------------------------- 47
6.12.2. Pickup Sensor --------------------------------------- 47
6.12.3. Exit Sensor ------------------------------------------- 48
6.12.4. Home Sensor ---------------------------------------- 48
6.12.5. Registration & Manual Paper Sensor ---------- 49
6.12.6. Print Timing Sensor -------------------------------- 49
6.12.7. Top Cover Sensor----------------------------------- 50
6.12.8. Toner Sensor.... “Toner Empty”, “Toner
6.12.2. Pickup Sensor --------------------------------------- 47
6.12.3. Exit Sensor ------------------------------------------- 48
6.12.4. Home Sensor ---------------------------------------- 48
6.12.5. Registration & Manual Paper Sensor ---------- 49
6.12.6. Print Timing Sensor -------------------------------- 49
6.12.7. Top Cover Sensor----------------------------------- 50
6.12.8. Toner Sensor.... “Toner Empty”, “Toner
Low”, “Change Drum”------------------------------ 51
6.12.9. Handset Hook Switch (KX-MB2020 ONLY) -- 54
6.13. Operation Board Section ------------------------------ 54
6.14. LCD Section----------------------------------------------- 55
6.15. HVPS (High Voltage Power Supply) Section ----- 56
6.14. LCD Section----------------------------------------------- 55
6.15. HVPS (High Voltage Power Supply) Section ----- 56
6.15.1. HVPS Specification--------------------------------- 56
6.15.2. CHG-BIAS (Charge BIAS)/GRID/ UNIT------- 56
6.15.3. DEV DC BIAS UNIT-------------------------------- 57
6.15.4. DEV AC BIAS UNIT -------------------------------- 57
6.15.5. TRA (+) BIAS (Transfer (+) BIAS)/TRA (-)
6.15.2. CHG-BIAS (Charge BIAS)/GRID/ UNIT------- 56
6.15.3. DEV DC BIAS UNIT-------------------------------- 57
6.15.4. DEV AC BIAS UNIT -------------------------------- 57
6.15.5. TRA (+) BIAS (Transfer (+) BIAS)/TRA (-)
BIAS (Transfer (-) BIAS) UNIT------------------- 57
6.16. Heat Lamp Control Circuit----------------------------- 58
6.17. Main Board Section ------------------------------------- 63
6.18. Power Supply Board Section ------------------------- 66
6.19. Mechanical Operation ---------------------------------- 67
6.17. Main Board Section ------------------------------------- 63
6.18. Power Supply Board Section ------------------------- 66
6.19. Mechanical Operation ---------------------------------- 67
6.19.1. Printing ------------------------------------------------ 67
7 Location of Controls and Components ----------------- 68
7.1. Overview --------------------------------------------------- 68
7.1.1. Front view--------------------------------------------- 68
7.1.2. Rear view --------------------------------------------- 68
7.1.2. Rear view --------------------------------------------- 68
7.2. Control Panel --------------------------------------------- 69
8 Installation Instructions -------------------------------------- 70
8.1. Installation ------------------------------------------------- 70
8.1.1. Installation Space ----------------------------------- 70
8.1.2. OUTPUT TRAY-------------------------------------- 71
8.1.3. RECORDING PAPER----------------------------- 72
8.1.4. Documents the Unit Can Send ------------------ 77
8.1.5. Toner Cartridge and the Drum Cartridge------ 78
8.1.6. Connecting to a computer ------------------------ 82
8.1.7. Installing Multi-Function Station ---------------- 82
8.1.2. OUTPUT TRAY-------------------------------------- 71
8.1.3. RECORDING PAPER----------------------------- 72
8.1.4. Documents the Unit Can Send ------------------ 77
8.1.5. Toner Cartridge and the Drum Cartridge------ 78
8.1.6. Connecting to a computer ------------------------ 82
8.1.7. Installing Multi-Function Station ---------------- 82
8.2. Connections----------------------------------------------- 84
9 Operating Instructions---------------------------------------- 86
9.1. Your Logo (KX-MB2020 ONLY) --------------------- 86
9.2. To Select Characters with the Dial Keypad ------- 87
9.2. To Select Characters with the Dial Keypad ------- 87
9.2.1. To Select Characters Using [] or []-------------- 87
10 Test Mode --------------------------------------------------------- 88
10.1. Test Functions -------------------------------------------- 88
10.1.1. DTMF Single Tone Transmit Selection
(KX-MB2020 ONLY)-------------------------------- 90
10.1.2. Button Code Table (KX-MB2020) --------------- 90
10.1.3. Print Test Pattern------------------------------------ 91
10.1.3. Print Test Pattern------------------------------------ 91
3
KX-MB1900UCB/KX-MB2020UCB
11 Service Mode -----------------------------------------------------92
11.1. Programming and Lists ---------------------------------92
11.1.1. Operation ----------------------------------------------92
11.1.2. Operation Flow ---------------------------------------92
11.1.3. Service Function Table (KX-MB2020) ----------93
11.1.4. Memory Clear Specification -----------------------95
11.1.2. Operation Flow ---------------------------------------92
11.1.3. Service Function Table (KX-MB2020) ----------93
11.1.4. Memory Clear Specification -----------------------95
11.2. User Mode (The list below is an example of
the SYSTEM SETUP LIST the unit prints out.) ---96
11.3. Service Mode Settings (Example of a printed
out list) (KX-MB2020 ONLY)---------------------------99
11.4. History (Example of a printed out list) ------------- 100
11.4.1. Descriptions of The History Report------------ 101
12 Troubleshooting Guide -------------------------------------- 102
12.1. User Recoverable Errors ----------------------------- 102
12.2. Remote Programming (KX-MB2020 ONLY) ----- 105
12.2. Remote Programming (KX-MB2020 ONLY) ----- 105
12.2.1. Entering the Remote Programming Mode
and Changing Service Codes (KX-
MB2020 ONLY)------------------------------------- 106
MB2020 ONLY)------------------------------------- 106
12.2.2. Program Mode Table------------------------------ 107
12.3. Troubleshooting Details ------------------------------- 112
12.3.1. Outline ------------------------------------------------ 112
12.3.2. Starting Troubleshooting ------------------------- 112
12.3.3. Initialization------------------------------------------ 113
12.3.4. Simple Check List --------------------------------- 114
12.3.5. Simplified Troubleshooting Guide ------------- 115
12.3.6. CALL SERVICE Troubleshooting Guide ----- 118
12.3.7. Print --------------------------------------------------- 125
12.3.8. Recording Paper Feed --------------------------- 131
12.3.9. Communication Section (KX-MB2020
12.3.2. Starting Troubleshooting ------------------------- 112
12.3.3. Initialization------------------------------------------ 113
12.3.4. Simple Check List --------------------------------- 114
12.3.5. Simplified Troubleshooting Guide ------------- 115
12.3.6. CALL SERVICE Troubleshooting Guide ----- 118
12.3.7. Print --------------------------------------------------- 125
12.3.8. Recording Paper Feed --------------------------- 131
12.3.9. Communication Section (KX-MB2020
ONLY) ------------------------------------------------ 141
12.3.10. Special Service Journal Reports (KX-
MB2020/2030 ONLY) ----------------------------- 146
12.3.11. Initializing Error------------------------------------- 159
12.3.12. Analog Section (KX-MB2020 ONLY) --------- 160
12.3.13. Operation Panel Section ------------------------- 163
12.3.14. Sensor Section ------------------------------------- 163
12.3.15. Motor Section --------------------------------------- 166
12.3.16. LSU Section----------------------------------------- 168
12.3.17. CIS Control Section ------------------------------- 169
12.3.18. High Voltage Value Check Point --------------- 171
12.3.19. High Voltage Section------------------------------ 173
12.3.20. USB Section ---------------------------------------- 178
12.3.21. LAN SECTION (KX-MB2020 ONLY)---------- 182
12.3.22. Main Board Section ------------------------------- 187
12.3.23. Power Supply Board Section ------------------- 190
12.3.13. Operation Panel Section ------------------------- 163
12.3.14. Sensor Section ------------------------------------- 163
12.3.15. Motor Section --------------------------------------- 166
12.3.16. LSU Section----------------------------------------- 168
12.3.17. CIS Control Section ------------------------------- 169
12.3.18. High Voltage Value Check Point --------------- 171
12.3.19. High Voltage Section------------------------------ 173
12.3.20. USB Section ---------------------------------------- 178
12.3.21. LAN SECTION (KX-MB2020 ONLY)---------- 182
12.3.22. Main Board Section ------------------------------- 187
12.3.23. Power Supply Board Section ------------------- 190
12.4. RECORDING PAPER JAM -------------------------- 193
12.4.1. When the recording paper has jammed
inside of the unit------------------------------------ 193
12.4.2. When the recording paper is not fed into
the unit properly ------------------------------------ 199
12.4.3. When the recording paper in the manual
input tray is not fed into the unit properly ---- 200
13 Service Fixture & Tools-------------------------------------- 201
14 Disassembly and Assembly Instructions ------------- 202
14 Disassembly and Assembly Instructions ------------- 202
14.1. Bottom Section ------------------------------------------ 203
14.2. Left Side Section---------------------------------------- 203
14.3. Operation Panel Section------------------------------ 204
14.4. Open Top Cover ---------------------------------------- 204
14.5. Remove Operation Panel --------------------------- 205
14.6. Remove Operation Board ---------------------------- 205
14.7. Remove Main Board ----------------------------------- 206
14.2. Left Side Section---------------------------------------- 203
14.3. Operation Panel Section------------------------------ 204
14.4. Open Top Cover ---------------------------------------- 204
14.5. Remove Operation Panel --------------------------- 205
14.6. Remove Operation Board ---------------------------- 205
14.7. Remove Main Board ----------------------------------- 206
14.8. Remove Gear Chassis Section--------------------- 207
14.9. Remove Right Cover ---------------------------------- 208
14.9. Remove Right Cover ---------------------------------- 208
14.10. Remove Right Cassette Guide --------------------- 208
14.11. Remove Bottom Plate--------------------------------- 209
14.12. Remove Laser Unit ------------------------------------ 209
14.13. Remove Pick up Roller ------------------------------- 210
14.14. Remove Low Voltage Power Board ----------------211
14.15. Remove Mirror -------------------------------------------211
14.16. Remove High Voltage Power Board--------------- 212
14.17. Installation Position of The Lead ------------------- 213
14.13. Remove Pick up Roller ------------------------------- 210
14.14. Remove Low Voltage Power Board ----------------211
14.15. Remove Mirror -------------------------------------------211
14.16. Remove High Voltage Power Board--------------- 212
14.17. Installation Position of The Lead ------------------- 213
14.17.1. Top Cover Section (1) ---------------------------- 213
14.17.2. Top Cover Section (2) ---------------------------- 214
14.17.3. Top Cover Section (3) ---------------------------- 215
14.17.4. Bottom Part Section (1)-------------------------- 216
14.17.5. Bottom Part Section (2)-------------------------- 217
14.17.6. Side Cabinet Section (1) ------------------------ 218
14.17.7. Side Cabinet Section (2) ------------------------ 219
14.17.8. Side Cabinet Section (3) ------------------------ 220
14.17.9. Side Cabinet Section (4) ------------------------ 221
14.17.2. Top Cover Section (2) ---------------------------- 214
14.17.3. Top Cover Section (3) ---------------------------- 215
14.17.4. Bottom Part Section (1)-------------------------- 216
14.17.5. Bottom Part Section (2)-------------------------- 217
14.17.6. Side Cabinet Section (1) ------------------------ 218
14.17.7. Side Cabinet Section (2) ------------------------ 219
14.17.8. Side Cabinet Section (3) ------------------------ 220
14.17.9. Side Cabinet Section (4) ------------------------ 221
14.17.10. AC Inlet Section ----------------------------------- 221
15 Maintenance ---------------------------------------------------- 222
15.1. Maintenance Items and Component Locations- 222
15.1.1. Outline ----------------------------------------------- 222
15.1.2. Maintenance Check Items/Component
15.1.2. Maintenance Check Items/Component
Locations -------------------------------------------- 222
15.2. Maintenance--------------------------------------------- 224
15.2.1. Cleaning the White Plates and Glasses ----- 224
15.3. Printing Operation Principle ------------------------- 228
15.3.1. Process Chart and Process BIAS------------- 228
15.3.2. CHARGING----------------------------------------- 228
15.3.3. Exposing--------------------------------------------- 229
15.3.4. Developing and Transcription ------------------ 230
15.3.5. Cleaning of Transfer Roller --------------------- 231
15.3.6. Fixing ------------------------------------------------- 232
15.3.2. CHARGING----------------------------------------- 228
15.3.3. Exposing--------------------------------------------- 229
15.3.4. Developing and Transcription ------------------ 230
15.3.5. Cleaning of Transfer Roller --------------------- 231
15.3.6. Fixing ------------------------------------------------- 232
15.4. Terminal Guide of The ICs Transistors and
Diodes ---------------------------------------------------- 233
15.4.1. Main Board------------------------------------------ 233
15.4.2. Operation Board ----------------------------------- 234
15.4.3. High Voltage Power Supply Board------------ 234
15.4.4. Low Voltage Power Supply Board ------------ 234
15.4.2. Operation Board ----------------------------------- 234
15.4.3. High Voltage Power Supply Board------------ 234
15.4.4. Low Voltage Power Supply Board ------------ 234
15.5. How to Replace the Flat Package IC ------------- 235
15.5.1. Preparation------------------------------------------ 235
15.5.2. Flat Package IC Removal Procedure -------- 235
15.5.3. Flat Package IC Installation Procedure------ 236
15.5.4. Bridge Modification Procedure----------------- 236
15.5.2. Flat Package IC Removal Procedure -------- 235
15.5.3. Flat Package IC Installation Procedure------ 236
15.5.4. Bridge Modification Procedure----------------- 236
15.6. Main Board Section------------------------------------ 237
15.6.1. NG Example ---------------------------------------- 238
15.7. Test Chart ------------------------------------------------ 239
15.7.1. ITU-T No.1 Test Chart---------------------------- 239
15.7.2. ITU-T No.2 Test Chart---------------------------- 240
15.7.2. ITU-T No.2 Test Chart---------------------------- 240
16 Schematic Diagram ------------------------------------------ 241
16.1. For Schematic Diagram ------------------------------ 241
16.2. Main Board (KX-MB1900) --------------------------- 242
16.2. Main Board (KX-MB1900) --------------------------- 242
16.2.1. Main Board (1) ------------------------------------- 242
16.2.2. Main Board (2) ------------------------------------- 246
16.2.3. Main Board (3) ------------------------------------- 248
16.2.2. Main Board (2) ------------------------------------- 246
16.2.3. Main Board (3) ------------------------------------- 248
16.3. Main Board (KX-MB2020) --------------------------- 250
16.3.1. Main Board (1) ------------------------------------- 250
16.3.2. Main Board (2) ------------------------------------- 254
16.3.3. Main Board (3) ------------------------------------- 256
16.3.4. Main Board (4) ------------------------------------- 258
16.3.2. Main Board (2) ------------------------------------- 254
16.3.3. Main Board (3) ------------------------------------- 256
16.3.4. Main Board (4) ------------------------------------- 258
4
KX-MB1900UCB/KX-MB2020UCB
16.4. Operation Board (KX-MB1900)--------------------- 260
16.5. Operation Board (KX-MB2020)--------------------- 261
16.6. Sensor Board-------------------------------------------- 262
16.7. High Voltage Power Supply Board----------------- 263
16.8. Low Voltage Power Supply Board ----------------- 264
16.5. Operation Board (KX-MB2020)--------------------- 261
16.6. Sensor Board-------------------------------------------- 262
16.7. High Voltage Power Supply Board----------------- 263
16.8. Low Voltage Power Supply Board ----------------- 264
17 Printed Circuit Board ---------------------------------------- 265
17.1. Main Board (KX-MB1900) --------------------------- 265
17.1.1. Main Board: Component View ----------------- 265
17.1.2. Main Board: Bottom View ----------------------- 266
17.1.2. Main Board: Bottom View ----------------------- 266
17.2. Main Board (KX-MB2020) --------------------------- 267
17.2.1. Main Board: Component View ----------------- 267
17.2.2. Main Board: Bottom View ----------------------- 268
17.2.2. Main Board: Bottom View ----------------------- 268
17.3. Operation Board---------------------------------------- 269
17.3.1. Operation Board ----------------------------------- 269
17.4. Sensor Board-------------------------------------------- 270
17.4.1. Toner Sensor Board ------------------------------ 270
17.4.2. Fuser Board----------------------------------------- 270
17.4.3. Pickup Sensor Board ----------------------------- 270
17.4.4. Registration Sensor Board ---------------------- 271
17.4.5. Varistor Sensor Board---------------------------- 271
17.4.6. Flatbet Relay Board------------------------------- 271
17.4.7. Handset Relay Board (KX-MB2020 ONLY)- 272
17.4.8. CIS Home Sensor Board ------------------------ 272
17.4.2. Fuser Board----------------------------------------- 270
17.4.3. Pickup Sensor Board ----------------------------- 270
17.4.4. Registration Sensor Board ---------------------- 271
17.4.5. Varistor Sensor Board---------------------------- 271
17.4.6. Flatbet Relay Board------------------------------- 271
17.4.7. Handset Relay Board (KX-MB2020 ONLY)- 272
17.4.8. CIS Home Sensor Board ------------------------ 272
17.5. High Voltage Power Supply Board----------------- 273
17.5.1. HIGH VOLTAGE POWER SUPPLY
BOARD: COMPONENT VIEW----------------- 273
17.5.2. HIGH VOLTAGE POWER SUPPLY
BOARD: BOTTOM VIEW ----------------------- 273
17.6. Low Voltage Power Supply Board ----------------- 274
17.6.1. LOW VOLTAGE POWER SUPPLY
BOARD: COMPONENT VIEW----------------- 274
17.6.2. LOW VOLTAGE POWER SUPPLY
BOARD: BOTTOM VIEW ----------------------- 274
18 Exploded View and Replacement Parts List --------- 275
18.1. Cabinet, Mechanical and Electrical Parts
Location--------------------------------------------------- 275
18.1.1. Operation Panel Section------------------------- 275
18.1.2. Flatbed Section ------------------------------------ 276
18.1.3. Top Cover Section -------------------------------- 277
18.1.4. Main Cabinet Section----------------------------- 278
18.1.5. Fuser Section--------------------------------------- 279
18.1.6. Bottom Cabinet Section (1) --------------------- 280
18.1.7. Separation (DFP) Roller Section -------------- 281
18.1.8. Side Cabinet Section ----------------------------- 282
18.1.9. Motor Section--------------------------------------- 283
18.1.2. Flatbed Section ------------------------------------ 276
18.1.3. Top Cover Section -------------------------------- 277
18.1.4. Main Cabinet Section----------------------------- 278
18.1.5. Fuser Section--------------------------------------- 279
18.1.6. Bottom Cabinet Section (1) --------------------- 280
18.1.7. Separation (DFP) Roller Section -------------- 281
18.1.8. Side Cabinet Section ----------------------------- 282
18.1.9. Motor Section--------------------------------------- 283
18.1.10. Bottom Cabinet Section (2) --------------------- 284
18.1.11. Output Tray Section------------------------------- 285
18.1.12. Actual Size of Screws and Washer ----------- 286
18.1.13. Accessories and Packing Materials (KX-
18.1.13. Accessories and Packing Materials (KX-
MB2020) --------------------------------------------- 287
18.1.14. Accessories and Packing Materials (KX-
MB1900) --------------------------------------------- 288
18.2. Replacement Parts List ------------------------------- 289
18.2.1. Cabinet and Electrical Parts ------------------ 289
18.2.2. Main Board (KX-MB1900)----------------------- 292
18.2.3. Main Board (KX-MB2020) ---------------------- 295
18.2.4. Operation Board (KX-MB1900) --------------- 300
18.2.5. Operation Board (KX-MB2020) --------------- 301
18.2.6. Sensor Board Parts ------------------------------ 302
18.2.7. High Voltage Power Board ---------------------- 303
18.2.8. Low Voltage Power Board----------------------- 303
18.2.2. Main Board (KX-MB1900)----------------------- 292
18.2.3. Main Board (KX-MB2020) ---------------------- 295
18.2.4. Operation Board (KX-MB1900) --------------- 300
18.2.5. Operation Board (KX-MB2020) --------------- 301
18.2.6. Sensor Board Parts ------------------------------ 302
18.2.7. High Voltage Power Board ---------------------- 303
18.2.8. Low Voltage Power Board----------------------- 303
