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Panasonic KX MC6020 Service Manual - Page 392

Main Board 6

UPC - 037988840441

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KX-MC6020HX 17.2.6. Main Board (6) 1 2 3 4 1/2 A 6-1 System I/F FRMA[15-0] 1:1D;3:2B IC600 +3.3V FRMA[15] RA601 1 FRMA[14] 2 FRMA[13] 3 FRMA[12] 4 FRMA[11] RA602 1 FRMA[10] 2 FRMA[9] 3 FRMA[8] 4 FRMA[7] RA603 1 FRMA[6] 2 FRMA[5] 3 FRMA[4] 4 FRMA[3] RA604 1 FRMA[2] 2 FRMA[1] 3 FRMA[0] 4 8 33 7 6 5 8 33 7 6 5 8 33 7 6 5 8 33 7 6 5 V19 FRMA15 U19 FRMA14 Y20 FRMA13 P17 FRMA12 R19 FRMA11 R18 FRMA10 U20 FRMA9 P18 FRMA8 T19 FRMA7 U18 FRMA6 T18 FRMA5 R17 FRMA4 V20 FRMA3 R20 FRMA2 P19 FRMA1 T20 FRMA0 FRMD7 U15 RA605 1 FRMD6 Y18 2 FRMD5 W17 3 FRMD4 FRMD3 FRMD2 FRMD1 FRMD0 Y19 4 W18 RA606 1 V17 2 V16 3 Y17 4 NEXTIOCS1 N18 NEXTIOCS2 P20 NENGINT V18 PWRDWN U16 NWDTOVF N20 R620 R621 R622 8 33 7 6 5 8 33 7 6 5 33 33 33 FRMD[7] FRMD[6] FRMD[5] FRMD[4] FRMD[3] FRMD[2] FRMD[1] FRMD[0] 1:1F 7:4C 1:4C;2C 1:1D;3:2A FRMD[0-7] +3.3V R626 10k R628 10k NENGINT ISWOPEN WDTRSTENG R604 47k R605 47k R606 47k R609 47k B NVIDEOCS 1:3D NIOCS 1:3D R610 R611 33 33 W19 NVIDEOCS U17 NIOCS +3.3V R623 10k NFRWE NFROE 1:3D;3:2C 1:3D;3:2D R612 R613 33 33 T17 NFRWE W20 NFROE NTEST A4 NTEST R624 () NC 10k XSYSRST WDTRSTENG R680 10k +3.3V C600 C601 C602 12p 100p 2.7u 8p L600 GND X603 33M R614 33MHz 0 1:1C;1:6B;3:2C;4:1D;5:5B 1:4C;4B L601 0 C8 SYSCLKI B7 SYSCLKO C15 CLKSEL N17 NSRST M19 NWDTRST GND C641 100n +3.3V GND CLKSEL R607 () NC CLKSEL E11 TEN L16 SMC Y2 TRST C 0:SysClk E10 MODE A6 TESTCLK1 R608 10k C603 100n 16 1:PCIClk B8 TESTCLK2 C6 STBY1 13 12 GND B1 STBY2 C3 STBY3 IC890 A3 TMC1 D6 TMC2 K16 E_PLOCK GND GND IO I/F IC600 +3.3V D R60 10k R59 10k R600 10k NENB PSEL NADJUSTK NADJUSTC NADJUSTM NADJUSTY NVOUTK NVOUTC NVOUTM NVOUTY NBD 7:1D 7:1D 7:1D 7:1D 7:1D 7:1D 7:1F 7:1E 7:1E 7:1E 7:3E L603 L604 L605 L606 L607 L608 L609 L610 L611 L612 L613 0 F18 NENB 0 D17 PSEL 0 B19 NADJUSTK 0 C20 NADJUSTC 0 C18 NADJUSTM 0 100 100 100 100 B16 NADJUSTY F17 NVOUTK E18 NVOUTC B17 NVOUTM A16 NVOUTY 0 H17 NBD EMPLEDK B15 L640 0 EMPLEDC D14 L641 0 EMPLEDM C14 L642 0 EMPLEDY C13 L643 0 EMPK D12 EMPC B14 EMPM A15 EMPY A14 PC4_WTBLED D13 L648 0 PC5_WTBFULL B13 7:6B 7:6B 7:6B 7:6B 7:6D 7:6C 7:6C 7:6C 9:2C 9:2C EMPLEDK EMPLEDC EMPLEDM EMPLEDY EMPK EMPC EMPM EMPY PC4_WTBLED PC5_WTBFULL E HTEMP_WDT R601 10k R602 10k HTRCTL 1:3C +3.3V THHIGHT 9 8 IC890 NITMON ITMCLK ITMG NITMLD NPCMON PCMCLK PCMG NPCMLD PB0_SOLPOWER PB1_FTRSOL PB2_PICKSOL PB3_REGCLU PB4_ADUSOL PB5_OPNON_SOL PB6_SEPSOL 5:7C 9:6B 8:2A 8:2B 8:2B 8:2A 8:2B 8:2B 8:2C 8:2B 8:2C 8:2E 8:2E 8:1D 8:2F 8:6C 9:2F L618 L619 E20 PC3_POLCLK G17 HTRCTL G18 VIN100 0 0 E19 ZCROSS A17 TEMPHIGH H20 NITMON H19 ITMCLK J18 ITMG J19 NITMLD L20 NPCMON K18 PCMCLK J20 PCMG K20 NPCMLD D11 PB0_SOLPWR B9 PB1_FTRSOL A9 PB2_PICKSOL A10 PB3_REGCLU C9 PB4_ADUSOL D9 PB5_OPSOL A8 PB6_SEPSOL REGLED1 REGLED2 REGSNS1 REGSNS2 REG1 REG2 D16 C16 A18 A19 A20 E17 L650 L651 L652 L653 L654 L655 OPCHOMK B12 OPCHOMC C12 PC6_NFANERR1 A12 PC7_NFANERR2 C11 HVEN DACLAT DACCLK DACDAT VBACCLK F20 J17 G20 G19 F19 L660 L661 L662 L663 L664 HVERR H18 PA7 A1 PA6 E4 0 0 0 0 0 0 0 0 0 0 0 10:5B 10:5B 10:5C 10:5C 10:8C 10:8D 1:3C;9:2B 9:2B 10:2D 10:2E 10:2B 10:2C 10:2C 10:2C 10:2B 10:2B REGLED1 REGLED2 REGSNS1 REGSNS2 REG1 REG2 OPCHOMK OPCHOMC NFANERR1 NFANERR2 HVEN DACLAT DACCLK DACDAT VBACCLK HVERR R625 10k R627 10k R629 10k R630 10k R631 10k R632 10k R633 10k (1) B11 PB7_TNSOLON PA5 D4 PC1_PCKSOL PC2_CHGSOL NSOLERR 8:2F 9:2E 8:1D L639 A11 PC0_TNSOLOFF D10 PC1_PCKSOL 0 C10 PC2_CHGSOL B10 NSOLERR PA4 B2 PA3 A2 PA2 C4 PA1 D5 PA0 B3 8:4E PA0_WTBNON C604 15p C605 15p X600 20ppm R615 220 B18 C17 VDGCLKKI VDGCLKKO PD7 A13 PD6 A7 PD5 N19 PD4 M18 F GND C606 15p C607 15p GND C608 10k X601 14.67M 14.672712MHz 16ppm R616 220 D20 D19 VDGCLKCI VDGCLKCO 11.83M 11.832832MHz PD3 M17 PD2 L18 PD1 L19 PD0 M20 C609 15p X602 () NC 24ppm R617( )220 K17 VDGCLKHI K19 VDGCLKHO (2) (3) (4) (5) (6) (7)(8) (9) GND 18.932532MHz NC KX-MC6020HX SCHEMATIC DIAGRAM (MAIN BOARD No.6) (1/2) 392

Section	Page
ORDER NO. KMF0811207CE	1
1 Safety Precautions	3
1.1. For Service Technicians	3
1.2. AC Caution	3
1.3. Personal Safety Precautions	4
1.3.1. Moving Sections of The Unit	4
1.3.2. Live Electrical Sections	4
1.4. Service Precautions	5
1.4.1. Precautions to Prevent Damage From Static Electricity	5
2 Warning	5
2.1. About Lead Free Solder (PbF: Pb free)	5
2.1.1. Suggested PBF Solder	5
2.2. Discarding of P. C. Board	6
2.3. Insulation Resistance Test	6
2.4. Battery Caution	6
2.4.1. Information for Users on Collection and Disposal of Old Equipment and used Batteries	6
2.5. Laser Beam and Fuser Unit Section	7
3 Specifications	8
4 General/Introduction	9
4.1. Optional Accessories	9
4.2. Translation Lists	9
4.2.1. Help Function	9
4.2.2. Error Message (Report)	10
4.2.2.1. CZECH	10
4.2.2.2. SLOVAK	10
4.2.2.3. HUNGARIAN	10
4.2.3. Error Message (Display)	11
4.2.3.1. CZECH	11
4.2.3.2. SLOVAK	13
4.2.3.3. HUNGARIAN	15
4.3. Precautions for Shipping	17
4.3.1. Necessary Items and Procedures for Each Service Type	17
4.3.2. Repack Procedure	20
5 Features	30
5.1. General Features	30
5.2. Hardware Requirements for Multi-Function Software	30
6.1. Connection Diagram	31
6.2. General Block Diagram	32
6.3. Main Board Section	35
6.3.1. Data Flow	35
6.3.2. RTC Backup Circuit	51
6.3.3. Modem Circuit Operation	51
6.3.4. TEL Line Section	52
6.3.4.1. Description of Block Diagram in Analog Section	52
6.3.4.2. Block Diagram	52
6.4. NCU Section	53
6.4.1. General	53
6.4.2. EXT. TEL. Line Relay (RY100)	53
6.4.3. BELL Detection Circuit	53
6.4.4. Calling Line Identification Circuit	53
6.4.5. Remote FAX Activation Circuit	53
6.4.6. TAM Interface Circuit	53
6.5. ITS (Integrated Telephone System) and Monitor Section	54
6.5.1. General	54
6.5.1.1. Telephone Monitor	54
6.5.1.2. Handset Circuit	54
6.5.1.3. Monitor Circuit	54
6.5.1.4. TAM Interface Section	54
6.6. CIS Control Section	55
6.7. Motor Drive Section	56
6.7.1. Engine Motor Control Circuit	56
6.7.1.1. BK Motor Control Circuit	56
6.7.1.2. Color Motor Control Circuit	57
6.7.2. Scanner Motor Drive Circuit	59
6.7.2.1. Motor Current Control Circuit	59
6.7.2.2. FB (FLATBED) Motor Drive Circuit	60
6.7.2.3. ADF (AUTOMATIC DOCUMENT FEEDER) Motor Drive Circuit	60
6.7.3. ADU (Automatic Duplex Unit (Option)) Motor Drive Circuit	61
6.7.3.1. Motor Current Control Circuit	61
6.7.3.2. ADU (Automatic Duplex Unit (Option)) Motor Drive Circuit	62
6.7.4. Optional Lower Input Tray Motor (OPF Motor) Drive Circuit	63
6.7.4.1. Motor Current Control Circuit	63
6.7.4.2. Optional Lower Input Tray Motor (OPF Motor) Drive Circuit	64
6.8. Timing Chart and Waveform of Scanner Motors	65
6.8.1. Normal 1-2 Phase Excitation (Half Step)	65
6.8.2. Flat Torque 1-2 Phase Excitation (Half Step)	66
6.8.3. W 1-2 Phase Excitation (Quarter Step)	67
6.8.4. Drive Mode of FB and ADF Motor	68
6.9. Timing Chart and Waveform of Optional Unit Motors	69
6.9.1. Normal 1-2 Phase Excitation (Half Step)	69
6.10. Fan Section	70
6.10.1. Fuser Fan	70
6.10.2. PSU Fan	71
6.11. Solenoid Driver Section	72
6.12. LSU (Laser Scanning Unit) Section	73
6.12.1. LSU (Laser Scanning Unit) Layout	73
6.12.2. Circuit Diagram	74
6.12.2.1. Block Diagram	74
6.12.2.2. Circuit Diagram	75
6.12.3. Timing Diagram	76
6.13. Sensors and Switches Section	78
6.13.1. OPC Home Sensor	79
6.13.2. FTR Home Sensor	80
6.13.3. Registration and Paper Pick Home Sensor	80
6.13.4. Registration and Paper (Paper Sensor)	81
6.13.5. Registration and Paper (Resistration Sensor)	81
6.13.6. Registration and Paper Cassette Sensor	82
6.13.7. Fuser Jam Sensor	82
6.13.8. CIS Home Sensor	83
6.13.9. ADF Document Sensor	83
6.13.10. ADF Read Position Sensor	84
6.13.11. Waste Toner Sensor	84
6.13.12. Toner Sensor	86
6.13.13. Drum Cartridge Virgin Sensor	89
6.13.14. Waste Toner Bottle Switch	90
6.13.15. Front/left Cover Switch	90
6.13.16. 24V Interlock Switch	90
6.13.17. 5V Interlock Switch	91
6.13.18. Handset Hook Switch	91
6.13.19. Color Registration Detection Circuit	92
6.13.20. Humidity/Temperature Sensor Circuits	95
6.13.20.1. Temperature Sensor (Characteristics of Temperature Detection Thermistor)	96
6.13.20.2. Humidity Sensor (Characteristics of Humidity Detection Thermistor)	97
6.13.21. Optional OPF Paper Sensor	98
6.13.22. Optional OPF Jam Sensor	98
6.13.23. Optional OPF Cassette Sensor	99
6.13.24. Optional OPF Cover Switch	100
6.13.25. Optional ADU Jam Sensor	100
6.13.26. Optional ADU Cover Switch	100
6.14. Operation Board Section	101
6.15. LCD Section	102
6.16. Heat Lamp Control Circuit	103
6.17. HVU (High Voltage Power Supply Board) Section	107
6.17.1. High Voltage Circuit	107
6.17.2. Charge Control Circuit	107
6.17.3. Development Bias Control Circuit	108
6.17.4. Toner Supply Bias Control Circuit	108
6.17.5. First Transfer Control Circuit ( FTR )	108
6.17.6. Second Transfer Control Circuit (STR)	109
6.17.7. Reverse Bias Control Circuit	109
6.17.8. Charger Error Detecting Circuit	109
6.17.9. D/A Convertor (8bit, 12ch) Interface Circuit	110
6.17.10. Interface	111
6.18. Main Board Section	112
6.18.1. Main Unit Power Supply Circuit Block Diagram	112
6.18.2. DC-DC Power Supply Circuit (3.3V / 2.5V / 1.5V / 1.2V)	113
6.18.3. Regulator Circuit (5V)	115
6.18.4. Regulator Circuit (1.25V)	115
6.18.5. Reset Circuit	115
6.19. PSU (Low Voltage Power Supply Board) Section	116
6.20. Mechanical Operation	117
6.20.1. Color Motor Rotation Travel	117
6.20.1.1. Color Motor Rotation Travel for Driving 3 Color (CMY) Drum Cartridges	118
6.20.1.2. Color Motor Rotation Travel for Driving 3 Color (CMY) Toner Cartridges	119
6.20.2. BK Motor Rotation Travel	120
6.20.3. BK Motor Rotation Travel for Driving Black Drum Cartridge	121
6.20.3.1. BK Motor Rotation Travel for Driving Accumulator Unit and Black Toner Cartridge	122
6.20.3.2. BK Motor Rotation Travel for Driving Fuser Unit	123
6.20.3.3. BK Motor Rotation Travel for Driving Waste Toner Cartridge	124
6.20.3.4. BK Motor Rotation Travel for Driving Accumulator Unit	125
6.20.4. Print Process	126
6.20.4.1. Charging	127
6.20.4.2. Laser Exposure and Scanning	127
6.20.4.2.1. Laser Exposure	127
6.20.4.2.2. Laser Scanning	128
6.20.4.3. Developing	128
6.20.4.4. Toner Transfer to the Accumulator Belt	129
6.20.4.5. Paper Pickup	129
6.20.4.6. Toner Transfer to Paper	130
6.20.4.7. Fusing	131
6.20.4.8. Paper Exit and Paper Switchback	132
6.20.4.8.1. Normal Printing Mode (Not Duplex Printing Mode)	132
6.20.4.8.2. Duplex Printing Mode (Paper Switchback)	133
7 Location of Controls and Components	134
7.1. Overview	134
7.1.1. Front view	134
7.1.2. Rear view	134
7.2. Control Panel	135
8 Installation Instructions	136
8.1. Installation	136
8.1.1. Toner Cartridge and Drum Cartridge	136
8.1.1.1. When to replace the toner cartridge and the drum cartridge	141
8.1.2. Recording Paper	142
8.1.2.1. Using the paper input tray	142
8.1.3. Handset Unit	144
8.1.4. Documents The Unit Can Send	147
8.1.4.1. Using the Scanner Glass	147
8.1.4.2. Using the automatic document feeder	147
8.1.5. Connecting to a computer	148
8.1.6. Installing Multi-Function Station on a computer	148
8.2. Connections	150
9 Operating Instructions	152
9.1. YOUR LOGO	152
9.1.1. To Select Characters with The Dial Keypad	153
9.1.2. To Select Characters Using [] OR []	153
10 Test Mode	154
10.1. Test Functions	154
10.1.1. DTMF Single Tone Transmit Selection	156
10.1.2. Button Code Table	156
11 Service Mode	157
11.1. Programming and Lists	157
11.1.1. Operation	157
11.1.2. Operation Flow	157
11.1.3. Specifications	158
11.1.3.1. Service Mode #884: History	158
11.1.3.2. Service Mode #852: Color Printing Test	159
11.1.4. Service Function Table	159
11.1.5. Memory Clear Specification	162
11.2. User Mode (The list below is an example of the SYSTEM SETUP LIST the unit prints out.)	163
11.3. Service Mode Settings (Example of a printed out list)	165
11.4. History	166
11.4.1. Description of The History Report	167
12 Troubleshooting Guide	168
12.1. User Recoverable Errors	168
12.2. User Recoverable Network Errors	171
12.3. Remote Programming	174
12.3.1. Entering The Remote Programming Mode and Changing Service Codes	175
12.3.2. Program Mode Table	176
12.3.2.1. User Function	176
12.3.2.2. Service Function	178
12.4. Troubleshooting Details	180
12.4.1. Outline	180
12.4.2. Starting Troubleshooting	180
12.4.3. Initialization	181
12.4.4. Simple Check List	182
12.4.5. Simplified Troubleshooting Guide	183
12.4.5.1. Printing	183
12.4.5.2. Jam	184
12.4.6. Call Service Troubleshooting Guide	186
12.4.6.1. CALL SERVICE 1	188
12.4.6.2. CALL SERVICE 2	189
12.4.6.3. CALL SERVICE 3	190
12.4.6.4. CALL SERVICE 4	191
12.4.6.5. CALL SERVICE 5	192
12.4.6.6. CALL SERVICE 6	193
12.4.6.7. CALL SERVICE 11	194
12.4.6.8. CALL SERVICE 12	195
12.4.6.9. CALL SERVICE 13	196
12.4.6.10. CALL SERVICE 14	197
12.4.6.11. CALL SERVICE 15	198
12.4.6.12. CALL SERVICE 16	199
12.4.6.13. CALL SERVICE 17	200
12.4.6.14. CALL SERVICE 18	201
12.4.6.15. CALL SERVICE 19	202
12.4.6.16. CALL SERVICE 20	203
12.4.7. Print Quality	204
12.4.7.1. Blank Print	204
12.4.7.2. All-black Print	205
12.4.7.3. Missing Primary Color	206
12.4.7.4. Light Print	207
12.4.7.5. Repeated Spots or Lines on Print in-line with Each Other	208
12.4.7.6. Dark Vertical Line in Print	209
12.4.7.7. White Horizontal Line or Band in all the Color of a Print	210
12.4.7.8. Mis-transfer, Missing Portions of Toner	211
12.4.7.9. Dirty Background	212
12.4.7.10. Partial Primary Color Dots	213
12.4.7.11. Dark Irregular Streaks in Print	213
12.4.7.12. Primary Color Irregular Streaks	214
12.4.7.13. Ghosting	214
12.4.7.14. Unfused or Partially Fused Printing	215
12.4.7.15. Image is Skewed on the Paper	216
12.4.7.16. Stains on Back of Print	217
12.4.7.17. No Printing on Edge of Print	218
12.4.7.18. Image is not Centered on the Print When it Should Be	219
12.4.8. Jam	220
12.4.8.1. Print Media Problem	220
12.4.8.2. Print Media Skew	221
12.4.8.3. Paper Jam at the Input Tray	222
12.4.8.4. Paper Jams at the Registration Roller	223
12.4.8.5. Paper Jams at the 2nd Transfer Roller	224
12.4.8.6. Paper Jams at the Fuser Unit	225
12.4.8.7. Paper Jam at the Exit Roller	226
12.4.8.8. Wrong Paper Length Jams	227
12.4.8.9. Paper Jams at the Optional Input Tray	228
12.4.8.10. Paper Jam at Optional Automatic Duplex Unit (ADU)	229
12.4.9. Communication Section	230
12.4.9.1. Defective Facsimile Section	231
12.4.9.1.1. Transmit Problem	231
12.4.9.1.2. Sometime There is a Transmit Problem	232
12.4.9.1.3. Receive Problem	233
12.4.9.1.4. The Unit Can Copy, but Cannot Transmit/Receive	234
12.4.10. Special Service Journal Reports	235
12.4.10.1. Journal 2	236
12.4.10.2. Journal 3	237
12.4.10.3. Printout Example	237
12.4.10.4. How to Output the Journal Report	238
12.4.11. Initializing Error	247
12.4.12. Analog Section	248
12.4.12.1. Check Sheet	248
12.4.12.2. Defective ITS (Integrated Telephone System) Section	249
12.4.12.3. Defective TAM Interface Section	250
12.4.13. Operation Panel Section	251
12.4.14. Sensor Section	252
12.4.15. Motor Section	262
12.4.15.1. BK Motor	262
12.4.15.2. Color Motor	263
12.4.15.3. FB (Flatbed) Motor	264
12.4.15.4. ADF Motor (ADF provided model only)	265
12.4.15.5. ADU (Automatic Duplex Unit (Option)) Motor	266
12.4.15.6. Optional Lower Input Tray (OPF Motor)	267
12.4.16. LSU Section	268
12.4.17. CIS Control Section	269
12.4.18. High Voltage Value Check point	271
12.4.19. High Voltage Section	275
12.4.20. USB Section	284
12.4.21. LAN Section	288
12.4.22. Main Board Section	293
12.4.23. PSU (Low Voltage Power Supply Board) Section	296
12.4.23.1. Key Components for Troubleshooting	296
12.4.23.2. Troubleshooting Flow Chart	297
12.4.23.3. Broken Parts Repair Details	299
12.5. Recording Paper Jam	300
12.5.1. When the recording paper has jammed inside of the unit	301
12.5.2. When the recording paper has jammed near the optional input tray	305
12.5.3. When the recording paper is not fed into the unit properly	306
12.6. Document Jams (Automatic Document Feeder)	306
13 Service Fixture & Tools	309
14 Disassembly and Assembly Instructions	310
14.1. First of All	310
14.2. Flow Chart for Disassembly	314
14.2.1. ADF Cover Section	314
14.2.2. FB Unit, ADF Unit and LSU Unit Section	314
14.2.3. Rear Section	315
14.2.4. Accumulator Unit	315
14.2.5. Fuser Section	316
14.3. Disassembly for Main Parts	316
14.3.1. Remove ADF Section (1)	316
14.3.2. Remove ADF Section (2)	317
14.3.3. Remove ADF Section (3)	317
14.3.4. Remove ADF Section (4)	318
14.3.5. Remove Rear Cover	319
14.3.6. Remove Left Cover	319
14.3.7. Remove FB Unit and ADF Unit	320
14.3.8. Remove FB Unit Section	321
14.3.9. Remove FB Inner Section (1)	322
14.3.10. Remove FB Inner Section (2)	322
14.3.11. Remove Toner Sensor Board and Main Drive Unit	323
14.3.12. Remove PSU Shield Cover	324
14.3.13. Remove Front Cover	324
14.3.14. Remove Fuser Unit	325
14.3.15. Remove WTF Sensor Board and Registration and Paper Unit	326
14.3.16. Open Drum Cartridge Cover	326
14.3.17. Remove Accumulator unit	327
14.3.18. Remove DC Motor	327
14.3.19. Remove FTR Home Sensor Board Section	328
14.3.20. Remove Top Cover	328
14.3.21. Remove LSU Unit	329
14.3.22. Remove Right Cover	329
14.3.23. Remove Main Board	330
14.3.24. Remove High Voltage Power Supply Board	330
14.3.25. Remove Color Registration Sensor Board Ass'y	331
14.3.26. Remove Fan Section	331
14.3.27. Remove Low Voltage Power Supply Board	332
14.4. Disassembly for Main Drive Unit	333
14.4.1. Main Drive Unit Disassembly	333
14.4.1.1. Main Drive Motors [No.D1] (Procedure No. D1)	334
14.4.1.2. Fuser Idle Gear [No.D2] (Procedure No. D2)	334
14.4.1.3. Drive Unit Bracket (S), PC Idle Gears, Accumulator Idle Gears and Joint Gear [No.D3] (Procedure No. D3)	335
14.4.1.4. CMY Home Lever, PC Home Lever, OPC Cam Home Position Sensor Board, OPC Gear and Dev.Gear [No.D4] (Procedure No. D3 -> No. D4)	337
14.4.1.5. Waste Toner Box Coupling and Coupling Idle Gear [No.D5] (Procedure No. D-3 -> No. D5)	338
14.4.1.6. Accumulator Drive Cam and Accumulator Cam Idle Gear [No.D6] (Procedure No. D3 -> No. D6)	338
14.4.1.7. Drive Unit Bracket (M) and 6 Gears [No.D7] (Procedure No. D3 -> No. D7)	339
14.4.1.8. Drive Unit Bracket (L) [No.D8] (Procedure No. D3 -> No. D7 -> D8)	340
14.4.1.9. Accumulator Joint Pulley Gear, Feed Pulley Gear and Tension Roller [No.D9] (Procedure No. D3 -> No. D7 -> D8 -> D9)	341
14.4.1.10. BK Changer Clutch Assembly [No.D10] (Procedure No. D3 -> No. D7 -> D8 -> D10)	342
14.4.1.11. Accumulator Drive Clutch and Accumulator Drive Gear Solenoid [No.D11] (Procedure No. D3 -> No. D7 -> D8 -> D11)	343
14.4.1.12. Toner Cartridge Joint Gear [No.D12] (Procedure No. D3 -> No. D7 -> D8 -> D12)	344
14.5. How to Remove STR	345
14.6. Note for Assembling	347
14.6.1. Main Drive Section	347
14.6.2. Accumulator Unit Section	350
14.6.3. Color Registration Sensor Section	351
14.7. Installation Position of the Lead	352
14.7.1. Main Board Section (1)	352
14.7.2. Main Board Section (2)	353
14.7.3. Main Board Section (3)	355
14.7.4. Main Cabinet Section	356
14.7.5. Low Voltage Power Supply Board Section (1)	357
14.7.6. Low Voltage Power Supply Board Section (2)	358
14.7.7. Main Drive Unit Section	359
15 Measurements and Adjustments	361
15.1. Color Registration Skew Adjustment	361
16 Maintenance	364
16.1. Maintenance Items and Component Locations	364
16.1.1. Outline	364
16.1.2. Maintenance Check Items/Component Locations	364
16.1.2.1. User Maintenance	365
16.1.2.2. Service Maintenance	365
16.1.2.2.1. Recommended Maintenance Cycle	365
16.1.2.2.2. Lubrication	365
16.2. Maintenance	366
16.2.1. Cleaning the white plates and glass	366
16.2.2. Cleaning the Document Feeder Rollers	367
16.2.3. Cleaning the paper chute	368
16.3. Terminal Guide of the ICs, Transistors and Diodes	370
16.3.1. Main Board (1)	370
16.3.2. Main Board (2)	371
16.3.3. Toner Sensor Board	371
16.3.4. WTF Sensor Board	371
16.3.5. FB Relay Board	371
16.3.6. Operation Board	372
16.3.7. Optional ADU Board	372
16.3.8. Optional OPF Main Board	372
16.4. How to Replace the Flat Package IC	373
16.4.1. Preparation	373
16.4.2. Flat Package IC Removal Procedure	373
16.4.3. Flat Package IC Installation Procedure	374
16.4.4. Bridge Modification Procedure	374
16.5. Main Board Section	375
16.5.1. NG Example	376
16.6. Test Chart	377
16.6.1. ITU-T No.1 Test Chart	377
16.6.2. ITU-T No.2 Test Chart	378
17 Schematic Diagram	379
17.1. For Schematic Diagram	379
17.2. Main Board	380
17.2.1. Main Board (1)	380
17.2.2. Main Board (2)	384
17.2.3. Main Board (3)	386
17.2.4. Main Board (4)	388
17.2.5. Main Board (5)	390
17.2.6. Main Board (6)	392
17.2.7. Main Board (7)	394
17.2.8. Main Board (8)	396
17.2.9. Main Board (9)	398
17.2.10. Main Board (10)	400
17.2.11. Main Board (11)	402
17.2.12. Main Board (12)	404
17.3. Sensor Board	406
17.4. Scanner Board	407
17.5. Operation Board	408
17.6. High Voltage Power Supply Board	410
17.6.1. High Voltage Power Supply Board (1)	410
17.6.2. High Voltage Power Supply Board (2)	411
17.6.3. High Voltage Power Supply Board (3)	412
17.7. Low Voltage Power Supply Board	413
17.8. Optional ADU Board	414
17.9. Optional OPF Board	415
17.10. Optional Hook Switch Board	416
18 Printed Circuit Board	417
18.1. Main Board	417
18.1.1. Main Board: Component View	417
18.1.2. Main Board: Bottom View	418
18.2. Sensor Board	419
18.2.1. Toner Sensor Board	419
18.2.2. ADF Relay Board	420
18.2.3. ADF Board	420
18.2.4. WTF Sensor Board	420
18.2.5. Cassette Sensor Board	420
18.2.6. FTR Home Position Sensor Board	420
18.2.7. Fuser Board	421
18.2.8. Registration and Paper Sensor Board	421
18.2.9. OPC Home Position Sensor Board	421
18.2.10. Pick-up Home Position Sensor Board	421
18.2.11. Sensor & Solenoid Relay Board	421
18.2.12. CIS Home Position Sensor Board	422
18.2.13. Color Registration Sensor Board	422
18.2.14. Handset Relay Board	422
18.3. Scanner Board	423
18.3.1. FB Relay Board: Component View	423
18.3.2. FB Relay Board: Bottom View	423
18.3.3. CIS Relay Board	424
18.4. Operation Board	425
18.5. High Voltage Power Supply Board	427
18.5.1. High Voltage Power Supply Board: Component View	427
18.5.2. High Voltage Power Supply Board: Bottom View	428
18.6. Low Voltage Power Supply Board	429
18.6.1. Low Voltage Power Supply Board: Component View	429
18.6.2. Low Voltage Power Supply Board: Bottom View	430
18.7. Optional ADU Board	431
18.8. Optional OPF Board	431
18.8.1. OPF Main Board: Component View	431
18.8.2. OPF Main Board: Bottom View	432
18.8.3. OPF Paper Sensor Board	432
18.8.4. OPF Sensor Board	432
18.9. Optional Hook Switch Board	433
19.1. Cabinet, Mechanical and Electrical Parts Location	434
19.1.1. Operation Panel Section	434
19.1.2. Top Cover Section	435
19.1.3. ADF Section	436
19.1.4. ADF Motor Section	437
19.1.5. Bottom Cabinet Section	438
19.1.6. Front Cabinet Section 1	439
19.1.7. Left Side Cabinet Section	440
19.1.8. Rear Cabinet Section 1	441
19.1.9. Rear Cabinet Section 2	442
19.1.10. Main Drive Unit Section 1	443
19.1.11. Main Drive Unit Section 2	444
19.1.12. Main Drive Unit Section 3	445
19.1.13. Main Drive Unit Section 4	446
19.1.14. Fuser Section	447
19.1.15. Right Side Cabinet Section	448
19.1.16. Laser Unit Section	449
19.1.17. Front Cabinet Section 2	450
19.1.18. Rear Cabinet Section 3	451
19.1.19. Cabinet Cover Section	452
19.1.20. Left Side Cover Section	453
19.1.21. Handset Section	454
19.1.22. STR Section	455
19.1.23. Cassette Tray Section	456
19.1.24. KX-FAB318E/X Optional Automatic duplex Unit (ADU) Section	457
19.1.25. KX-FAP317E/X Optional Lower Input Tray (OPF) Section 1	458
19.1.26. KX-FAP317E/X Optional Lower Input Tray (OPF) Section 2	459
19.1.27. KX-FAP317E/X Optional Lower Input Tray (OPF) Section 3	460
19.1.28. Actual Size of Screws and Washers	461
19.1.29. Accessories and Packing Materials	462
19.2. Replacement Parts List	463
19.2.1. CABINET AND ELECTRICAL PARTS	463
19.2.1.1. Operation Panel Section	463
19.2.1.2. Top Cover Section	463

Match case Limit results 1 per page

392

KX-MC6020HX

17.2.6.

Main Board (6)

KX-MC6020

SCHEMATIC DIAGRAM (MAIN BOARD No.6) (1/2)

1/2

-1

(1)

(2)

(4)

(5)

(3)

(6)

(9)

(8)

(7)

FRMD[0-7]

1:1D;3:2A

FRMA[15-0]

1:1D;3:2B

NFRWE

1:3D;3:2C

R611

NIOCS

1:3D

R620

RA605

RA606

RA601

RA603

RA602

RA604

47k

R606

47k

R609

NENB

7:1D

PSEL

7:1D

NADJUSTK

7:1D

NADJUSTC

7:1D

NADJUSTM

7:1D

NADJUSTY

7:1D

NVOUTK

7:1F

NVOUTC

7:1E

NVOUTM

7:1E

NVOUTY

7:1E

HTRCTL

5:7C

THHIGHT

9:6B

HTEMP_WDT

1:3C

NITMON

8:2A

ITMCLK

8:2B

ITMG

8:2B

NPCMON

8:2B

PCMCLK

8:2B

PCMG

8:2C

PB0_SOLPOWER

8:2C

PB1_FTRSOL

8:2E

PB2_PICKSOL

8:2E

PB3_REGCLU

8:1D

PB4_ADUSOL

8:2F

NSOLERR

8:1D

EMPLEDK

7:6B

EMPLEDC

7:6B

EMPLEDM

7:6B

EMPLEDY

7:6B

PC4_WTBLED

9:2C

REGLED1

10:5B

REGLED2

10:5B

REGSNS1

10:5C

REGSNS2

10:5C

HVEN

10:2B

DACLAT

10:2C

DACCLK

10:2C

DACDAT

10:2C

VBACCLK

10:2B

HVERR

10:2B

NVIDEOCS

1:3D

R610

47k

R604

+3.3V

47k

R605

NFROE

1:3D;3:2D

R612

R613

NENGINT

1:1F

ISWOPEN

7:4C

R621

R622

WDTRSTENG

1:4C;2C

GND

XSYSRST

1:1C;1:6B;3:2C;4:1D;5:5B

WDTRSTENG

1:4C;4B

10k

(

)

R624

GND

10k

R623

+3.3V

PB5_OPNON_SOL

8:6C

PC2_CHGSOL

9:2E

R607

(

)

+3.3V

100n

C603

GND

10k

R608

GND

100p

C601

L606

L662

L639

L648

L642

L603

L651

L607

L618

L654

L660

L640

L663

L604

L643

L608

L652

L655

L619

L661

L605

L664

L641

L650

L613

L653

10k

R627

10k

R629

10k

R630

10k

R631

10k

R632

10k

R633

10k

R601

+3.3V

10k

R602

10k

R600

+3.3V

10k

R628

10k

R626

+3.3V

NBD

7:3E

NITMLD

8:2A

NPCMLD

8:2B

EMPK

7:6D

EMPC

7:6C

EMPM

7:6C

EMPY

7:6C

PC5_WTBFULL

9:2C

REG1

10:8C

REG2

10:8D

OPCHOMK

1:3C;9:2B

OPCHOMC

9:2B

NFANERR1

10:2D

NFANERR2

10:2E

10k

R625

PC1_PCKSOL

8:2F

IC890

L601

IC600

V19

FRMA15

U19

FRMA14

Y20

FRMA13

P17

FRMA12

R19

FRMA11

R18

FRMA10

U20

FRMA9

P18

FRMA8

T19

FRMA7

U18

FRMA6

T18

FRMA5

R17

FRMA4

V20

FRMA3

R20

FRMA2

P19

FRMA1

T20

FRMA0

W19

NVIDEOCS

U17

NIOCS

T17

NFRWE

W20

NFROE

SYSCLKI

SYSCLKO

C15

CLKSEL

N17

NSRST

M19

NWDTRST

E11

TEN

L16

SMC

TRST

E10

MODE

TESTCLK1

TESTCLK2

STBY1

STBY2

STBY3

TMC1

TMC2

K16

E_PLOCK

U15

FRMD7

Y18

FRMD6

W17

FRMD5

Y19

FRMD4

W18

FRMD3

V17

FRMD2

V16

FRMD1

Y17

FRMD0

N18

NEXTIOCS1

P20

NEXTIOCS2

V18

NENGINT

U16

PWRDWN

N20

NWDTOVF

NTEST

IC600

F18

NENB

D17

PSEL

B19

NADJUSTK

C20

NADJUSTC

C18

NADJUSTM

B16

NADJUSTY

F17

NVOUTK

E18

NVOUTC

B17

NVOUTM

A16

NVOUTY

H17

NBD

E20

PC3_POLCLK

G17

HTRCTL

G18

VIN100

E19

ZCROSS

A17

TEMPHIGH

H20

NITMON

H19

ITMCLK

J18

ITMG

J19

NITMLD

L20

NPCMON

K18

PCMCLK

J20

PCMG

K20

NPCMLD

D11

PB0_SOLPWR

PB1_FTRSOL

PB2_PICKSOL

A10

PB3_REGCLU

PB4_ADUSOL

PB5_OPSOL

PB6_SEPSOL

B11

PB7_TNSOLON

A11

PC0_TNSOLOFF

D10

PC1_PCKSOL

C10

PC2_CHGSOL

B10

NSOLERR

B18

VDGCLKKI

C17

VDGCLKKO

D20

VDGCLKCI

D19

VDGCLKCO

K17

VDGCLKHI

K19

VDGCLKHO

B12

OPCHOMK

C12

OPCHOMC

A12

PC6_NFANERR1

C11

PC7_NFANERR2

F20

HVEN

J17

DACLAT

G20

DACCLK

G19

DACDAT

F19

VBACCLK

H18

HVERR

PA7

PA6

PA5

PA4

PA3

PA2

PA1

PA0

A13

PD7

PD6

N19

PD5

M18

PD4

M17

PD3

L18

PD2

L19

PD1

M20

PD0

B15

EMPLEDK

D14

EMPLEDC

C14

EMPLEDM

C13

EMPLEDY

D12

EMPK

B14

EMPC

A15

EMPM

A14

EMPY

D13

PC4_WTBLED

B13

PC5_WTBFULL

D16

REGLED1

C16

REGLED2

A18

REGSNS1

A19

REGSNS2

A20

REG1

E17

REG2

GND

10k

C608

33M

X603

14.67M

X600

11.83M

X601

10k

R59

10k

R60

PA0_WTBNON

8:4E

PB6_SEPSOL

9:2F

100

L609

100

L610

100

L611

100

L612

+3.3V

10k

R680

GND

100n

C641

R614

C600

12p

C602

220

R616

15p

C606

15p

C607

220

R615

15p

C609

15p

C604

15p

C605

220

R617

2.7u

L600

X602

(

)

(

)

FRMA[15]

FRMA[14]

FRMA[13]

FRMD[7]

FRMD[6]

FRMD[5]

FRMD[4]

FRMD[3]

FRMD[2]

FRMD[1]

FRMD[0]

FRMA[12]

FRMA[11]

FRMA[10]

FRMA[9]

FRMA[8]

FRMA[7]

FRMA[6]

FRMA[5]

FRMA[4]

FRMA[3]

FRMA[2]

FRMA[1]

FRMA[0]

NTEST

CLKSEL

System I/F

IO I/F

16ppm

20ppm

24ppm

11.832832MHz

14.672712MHz

18.932532MHz

33MHz

0:SysClk

1:PCIClk

CLKSEL