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Panasonic KX MC6020 Service Manual - Page 417

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UPC - 037988840441

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KX-MC6020HX indicate measurement points of the DC power supply. indicate GND or PG points. KX-MC6020HX MAIN BOARD COMPONENT VIEW R251 R250 R255 R256 C242 L239 L238 L240 L229 R225 L230 C509 C506 C507 C508 C512 C511 C510 C514 C513 R753 C737 R729 8 C765 R793 R784 R787 CN760 C772 C1130 C774 Q8 1 E R56 1 C51 CN2 PG +24VA C50 C48 C46 C43 C42 91 CN1 8 18 C49 C1104 Q7 C44 E C525 C1215 17 R728 R505 R502 R504 C504 C502 R501 CN501 2 C523 1 L501 R503 R500 L500 C500 R755 C521 C741 L223 L221 6 1 CN201 L222 L224 CN200 2 1 R228 L234 L235 C246 4 C224 C236 R257 L220 R219 C231R254 1 R235 D103 Q104 R115 R117 C125 E Q102 E Q103 C123 Q106 E C113 R114 R111 R105 E C108 C106 16 IC101 9 C112 R118 ZNR100 C114 C115 SA101 POS100 SA100 18 2 L111 L100 L101 R129 L110 R134 CN100 L107 R103 L203 Q200 L202 E R124 R125 R120R132 R122 C105 C121 L227 C111 R214 IC202 C1162 R9 C503 R5 R26 R30 R507 C104 L208 C10R13 R21R14 R27 C505 C14R19 C1158 R23R18 R7 R31C8 R15 C1110 +7VA R20R11 R3 C15 C9 R10 R8 R28 R24 R12 C244 R245 C119 R130 C120 C1103 C1136 R201 C52 C201 C200 R45 R57 R221 C229 C1167 C219 R29 R25 C7 R22 R6 C776 C12 R17 R16 C18 C16 C1163 C17 C1122 C1116 L701 C704 C773 C715 C1193 C775 R792 R783 C763 CN703 CN700 R757R756 R759 Q711 L210 C1134 R133 C1126 R123 L103 D104 R128 D105 E R126 C101 D100 C1165 C1155 R51R52 C214 R217 C213 C1118 C1194 +24VC 7 EE L700 8 R42 R43 JS300 C1160 1 C714 C709 C713 C708 14 C717 C1166 R398 R397 R396 R581 C580 C336 R580 R584 R586 C582 R582 R585 R587 C583 R583 C581 C1149 L392 L390 L388 L387 C316 R385R384 R372L393 R352 R351 R347 R348 R349 C520 R379 R368 R386 C519R509 R508 R334 R336 C524 C518 R510 C517 R511 C515 R512 AP33 R506 C516 L325 RA319 R331 RA320 RA322 RA321 R350 R884 C606 R886R885 Q835 Q834 D831 R875 C1208 C857 D832 CN890 E +3.3V/BATT L662 X602 R641R617 C609 R622 R642 R628 R637 R613 R609 R610 R604 R60 C1187 C851 C853 R877 R864 C843 C712 C707 R861 C711 C706 R600 X601 IC450 CL600 L660 L605C1125 C1183 C1228 C1161 C1107 417 A33 C1150 R479 C481 RA307 RA309 RA305 RA306 RA605 R620 L664 L663 L606 C607 C855 C1191 CN701 R750 C736 R869 R870 C842 BOND RA308 C308 RA606 CL624 Q710 R747 Q709 R746 Q708 R745 CL628 R850 R852C838 R854 R847C837 R851 R846 R843C835 R840C834 R842 R838 R835C832 R832C831 R834 R831 R830C830 R845 R751 Q706 R749 PPFbUFP1693Z A 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.Q02586561CC8V84C1179RC+8198C13434257N149QDVCRRR7RACRB625R8888L8C2945775Q2R81ERDC8008162988R9188806888C4978RQ1933QCC16190I06886811C363E09E22R126R5411G9RQQ104C91CN86R12589RRR1DE89C2166614R75R9332R9R8RX261056911Q67XRDCCCQ013E501C1CL631L81L7157086011676L0QC531106R0L13RC8314CRCR7013LL6661310966787753C011RCR01909945RRRR2R18CR82C51296CL99088888QR7E38L6161L467679L960608080165362660342994Q31CLL3CCCC017188661L9CR88889111644447C7+519056495889A3R110CRCR2R664.21AA37777C6001V9898911660537620+010R.5AV9436RRRRRR2RCIQDC666666C24C6L676676492C410748036121I6601CCCC810CCCCLLL628C6660LLL5IC332066610GCC205734431CN11913CR11L9RRR1D1RRR1896666610186660744R94155545385353A954493DQCC6CCCCCC3+13462LLLLLL1RL666666.1Y32RAY445566815351379R627CCV005CCCCCCACRC2T144LLLL6LL17671T6666R066324224455C36781A28462480161C0+R321CC1C2A.1LLC214666V11C605641C1591153R6C111CC56271LL5C211666CR6L19C6621C622C102C14C22R11C1C113022332IC1I112CC18817141C77C138C707432LC93198222001CRCRCC025X344533LRC3057343205+220401143RRRRRCC5.68RC24CCCCCCCCPC3R6666221X223521377664344444444C148923V0R29297CC52225001G15IB.00CTL730459208446LLCCCC0N-2T65C8066LLLLD1844H66665C79RRRRC5324343CC230844444C0LLRRRR10002AR16566084636666UL13455555C22R3T78062431CCCCCCC09424O36CC9+LLLLLLRRRL00-L726666663R9C23333V815566770D0006HAI126C57351391BC3567502CCCCCC1141LLLLLL0B1C7666666013R6I5556677C4CC4BA6846243224R14451120I10CRCR13C25623A018934C01R0C1CCCCC673024344444201+00000088556789V9RDRRRCRCCCCCCA+2R4444444444445ICDA110000111110V16112517401734364R9D610130C223RI164CR3CR0166AC223I16C74153C011C6C3C807LC6CL01953ILRC30L03010348Q070006181519E008CRRACA411N15N830034172743R1R3RA51R3RR2P3RR387R53327LRR332C12R3636633CRCC821DD18R570C77C204CCCCCLC44L3L625LLLL80N14Y35355444444LC8CC33332C5511001011141387777LR4484C00L192576084633335103LLL0CL0LLLL212L033331L3333012222038777098730CRC17522ERQ4XN55DR15RR2335RRRRR4304280844814512R833332C0888R21RR6444445441RC72645014E3398Q55800191CC1358RRRR9816C7305C1533334CC34131224444348I1116191CC836921E3DC153Q45R323C4NC305A0C9RD5I415201RC44355T90015A4810140C4R983C5C3440R525515N10CC5C53C21X41404124N5C584939472C155R417207C005RR15352C1346Q441RR157D1CR896114L502021CCR0144F7Y33150118755521111V10C853130074550113ACI0CCTC5B541213051C92100145320C413144512CRCC912651R544205257426275416Q8764EC5J7CQ07NK8R45C41L740R50425531C14707665174638 Q451 E R489 R480 R478 C1115 R470 R471 8 7 9 C478 C456 R375 R474 C487 RA451 R473 R483 RA607 JK450 LF451 R468 R469 LF450 2 1 10 C1157 R325 R324 C1108 R391 C312 C450 C461 C455 C449 R409 C429 C428 C427 C426 C422 C421 C448 C403 4 RA608 RA614 RA612 RA610 RA622 RA620 RA618 RA611RA616 RA609 RA617 RA615 R918R919 R920R923 C900C901 C600 C601 C847 C1154 R740 C739 C740 R741 R743R742 R739 CN705 RA621 RA619 R623 R614 C602 R854 R880 R863 R867 R874 C850 C911 R736 C908 E Q902 E CN891 Q903 E RA613 R1017 C989 R1018 R984 R985 R624 C909 C910 R950 C890 C1207 R907 C1186 R899 D700 R912 C891 8 R719 C728 IC831 C1102 C26 5 E R889 E R888 R887 41 R833 E Q830 E R837 R841 E CN832 C1101 R913 Q837 5 E Q899 C859 D833 Q831 D451 R530 R528 E R477 C544 8 1 R40 C1199 C31 C1197 C30 C1203 Caution: C541 C540 C536 R525 C539 L504 R455 C472 L502 C1170 C1172 RA400 RA401 C542 R529 C545 R521 L503 R523 R526 R519 C548 C547 C546 C1184 RA404 RA405 R316 RA403 RA402 C37 5 4 RA407 RA406 C1206 C894 R903 E Q891 E E E C893 R901 D765 D763 R785 18.1.1. Main Board: Component View E R825 R826 C805 C895 C41 8 1 R50 C1151 C40 E Q890 C1201 CN762 R1008 R1007 R1005 R1011 R1010 R1009 D760 C762 D761 C767 D762 C768 D764 C770 D766 C803 R821 C793 R815 C787 C778 C788 C735 C784 C1205 C781 R748 C1133 C796 R715 18.1. Main Board 18 Printed Circuit Board C800 R811 R810 R809 R808 R807 R804 R820 R817 R814 R812

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

417

KX-MC6020HX

18 Printed Circuit Board

18.1.

Main Board

18.1.1.

Main Board

: Component View

R753

C737

R729

CN760

C765

R784

R787

R793

C772

C1130

R56

C51

C50

C48

C46

C43

R24

R28

C42

+24VA

C774

CN501

CN1

CN2

C1104

C49

C44

C525

C1215

R728

CN200

CN201

C224

R225

C242

L239

L222

L224

L221

L223

C741

R755

C521

C1162

C10

C16

C1163

C17

C14R19

R18

C1158

C1110

C15

C1122

C1194

C1118

C1166

+24VC

C1116

C776

C775

C1193

L701

C715

L700

C704

C773

R792

R757

CN700

C717

CN703

R756

R759

Q711

R783

C763

R10R8

R20R11R3

R15

+7VA

R23

R31

R27

C18

R13

R14

R21

R26

R30

C503

R507

C505

C507

C506

C509

C508

C510

C511

C512

C513

C514

L238

L240

L229

L230

R251

R114

C106

Q200

C111

L203

R214

IC202

C229

R201

C201

L208

C200

C214

C219

R221

R217

C1167

C213

L210

C1136

C52

R45

R57

L202

R103

C104

C105

C1103

C120

R126

C101

D100

C1160

R51R52

C1165

C1155

R43

R42

R130

R245

C244

L227

C121

R255

R250

R256

C236

Q104

R115

IC200

C32

R48

L234

L235

C246

C113

Q102

C123

R111

Q103

R105

Q106

C112

R118

D103

ZNR100

C114

C115

SA101

SA100

L107

CN100

F100

125V

R132

R120

C119

R122

R124

R125

POS100

CN101

RLY101

JS300

D101

C103

Q101

R128

L103

C1126

C1134

R133

R123

D105

D104

R131

RLY100

CN581

C1212

CN580

R398

C336

R582

C582

R585

R384

L392

L390

L388

L387

L393

R385

R372

C316

R336

R334

L325

RA319

RA320

R331

RA322

+3.3V/BATT

IC450

R620

RA605

RA606

RA615

RA617

R985

R984

RA607

RA609

RA616

RA611

RA620

RA622

RA613

RA618

RA610

RA608

RA612

RA614

C1157

C1108

C312

R391

R325

R324

RA619

RA621

C1102

C26

C31

C1197

C1199

C37

C1203

R1018

R1017

C989

C30

CL624

CL628

A33

RA305

RA307

RA309

C308

RA308

BOND

RA306

RA321

R350

C1149

R349

R347

R348

R352

R351

R386

R368

R379

C581

R581

R587

C583

R583

C580

R584

R586

R580

R397

R396

IC302

CN500

C520

R508

C1121

R454

C471

R457

L201

B300

C526

C515

C517

R509

C519

C1150

C481

R479

C518R510

C524

R511

R512

C1153

T451

C476

R467

C1115

JK450

R480

R521

R523

R519

C542

R529

C545

R526

C1184

L503

R470

C478

LF450

LF451

R468

R469

R471

R478

C475

C492

C1142

R343

R344

R346

R345

R339

R340

R342

R341

R309

R308

D453

D452

X302

C1152

CN451

C488

R475

X450

C1144

Q450

R489

Q451

C477

R472

R228

IC101

C107

L111

L110

R129

L101

L100

C108

R134

R135

L102

CL303

CL301

CL300

CL302

CL304

R378

L329

L328

L327

R370

AP33

C516

R506

R310

L383

R376

C314

R375

R474

C487

R473

RA451

R483

R382

R367

R360

AP2

AN1

JK451

D451

R477

R528

R530

Q503

C543

C544

L502

R455

C536

C548

RA400

C1172

C1170

RA405

R316

R409

C450

C461

C455

C449

C429

C428

C427

C426

C422

C421

C448

C403

RA402

RA403

RA404

RA407

R50

C41

C40

C1151

C1201

R1008

R1007

R1005

R1011

R1010

R1009

R40

RA406

RA401

C547

C546

C539

L504

C541

C540

R525

C472

R466

C529

C532

C530

IC500

RA453

RA452

R482

R490

C490

C491

C527

C528

R117

C125

R257

R219

L220

C231

R235

R254

C523

L501

L500

R503

R500

C500

C13

IC2

R505

R504

C504

R501

C501

R502

C502

C102

R136

R101

R137

R102

C100

IC6

IC100

Q100

C36

C35

+5VD2

+5VD

R203

IC4

C29

C1173

+7VB

C25

C212

C209

T450

C313

C1139

C484

C483

R491

R487

R486

C489

R485

R484

R488

IC451

L378

L374

L376

L373

L381

L377

L375

L372

DL500

R588

DL501

Q500

C1147

CN502

C494

C549

R531

C550

D500

C535 C534

C537

C419

C412

C415

C447

C416

C432

C431

R318

R322

C454

C1179

IC401

IC400

C451

C430

Q502

Q501

R522

C538

R517

C533

R514

C531

C1120

R527 R524 R520

R518R516R515

C410

C411

C417

C413

C414

C405

C406

C407

C408

C409

R320

R411

R412

R405

C401

R407

C404

C434

C1175

C1133

R410

R408

R404

R406

C423

+1.25VTT

C453

C420

C424

C425

C459

C402

C400

C418

IC7

C1138

C1202

C39

C38

R53

C34

C33

C28

C27

IC3

C1114

R41

C24

C23

CL655

CL656

CL658

CL664

CL666

CL672

CL674

CL657

CL663

CL665

CL671

CL673

L205

R246

C238

C215

R218

IC300

AN34

CL308

CL306

CL307

CL305

R680

C641

B34

R302

R303

R305

R306

C306

R374

R671

CL309

CL310

GND

C1140

PCB-CH

AUTO-CH

C210

C208

C1109

L200

R200

IC5

C1129

L211

C220

R222

L215

L209

C1146

C22

C1181

GND

C1195

C21

+1.2V

C1171

C1211

C1143

C473

C474

R456

X301

32.768

C305

X300

R450

C1177

C1196

C1226

R656

Y20

R621

C742

R679

R672

R669

R667

R652

R654

R653

R651

CL632

CL623

CL640

CL638

C445

C456

RA408

RA412

RA409

RA411

RA410

R326

R327

CL647

CL649

CL648

CL650

CL659

CL660

CL662

CL661

IC600

CL643

CL644

CL646

CL652

CL654

CL645

CL651

CL653

R660

R677

R664

CL630

CL635

CL627

CL639

CL641

CL643

R668

R670

R663

R673

R648

R645

R659

R655

R644

C1128

C1145

+1.25VTT2

IC960

C1135

R754

C738

C1198

RA960 RA962

RA961

R1013

+1.5V

C1100

C1106

C19

GND

C1210

C20

C1192

C1200

+3.3V

IC1

C11

+2.5V

C1213

C1189

IC760

CN761

CN702

R786

R758

C700

C716

R705

R706

R707

R712

IC701

R704

R703

R701

CN704

L702

L703 L704

L705

Q892

C896

CN890

R908

C1208

IC890

C899

R883

Q704

C702

Q705

R716

C769 C764

R778

R769

C760

R772

R765

R788

C774

R766R771

R779

C766

R775

R790

C771

R773

C761

R12

R17

R16

R25

R29

R22

C12

C714

C708

C713

C709

R710

R711

IC700

C705

R708

R709

C711

C707

C712

C706

C1132

RA604

RA603

RA602

RA601

CL605

R613

R610

R604

R609

R628

R622

R641

R637

R642

C609

X602

X601

L606

C1125

C1187

L605

C607

L662

L664

L663

CL600

L660

R600

R60

C606

R617

C1112

R616

A20

C608

C604

L652

L654

L653

X600

L611

L619

L618

L640

CL602

L608

L612

R635

R602

L639

C804

CL603

R601

R636

L600

R614

R624

R623

C600

C601

C602

X603

C1161

C1107

C1228

R861

C851

C853

R877

R864C843

C1183

C1191

C1154

C911

R874

C850

R867

C847

R863

R880

R854

R919

R923

C901

R920

C900

R918

C909

R850

R852

R854

R847

R851

R846

R843

R840

R842

R838

R835

R832

R834

R831

R830

C838

C837

C835

C834

C832

C831

C830

R845

C739

C740

R739

C910

R837

R841

R833

Q830

R736

Q706

R749

R751

R743

C908

R950

R742

R740

R741

R870

R869

C855

C842

C1159

IC830

C605

R615

R631

R630

R625

C1119

C1131

C1113

C1207

IC831

C1101

Q899

R912

R913

C1186

R899

R719

C728

D700

D833

C859

R887

R888

R889

Q837

C891

R907

C890

C1141

R910

Q897

Q895

R896

R891

Q891

C894

C1206

R903

R917

R915

C897

C856

C912

R803

C795

R801

C792

R799

C780

R795

C783

R797

C790

R794

C786

Q701

Q703

R813

R818

R718

R819

R715

R821

C793

R815

C787

+24VB

C797

CN764

CN763

C801

C796

R785

C803

C770

C768

C767

C762

D763

Q831

D765

D766

D764

D762

D761

D760

R825

R826

C805

C895

R901

C893

Q890

R789

R782

Q762

Q760

Q763

Q761

C1190

R731

C800

R817

R812

R810

R808

R804

R820

R814

R811

R809

R807

C788

CN762

C784

C781

C778

R748

C735

C1205

R796

C779

R798

C782

R800

C785

R806

C794

R805

C791

R802

C789

Q765

Q764 Q766

CN831

R791

R856

R855

CN836

R916

R914

R857

R890

R894

Q894

Q896

R906

Q898

R893 R892

Q893

R909

C892

R730

R905

R897

C1209

C703

R700

R702

R750

C736

CN701

CN833

R860

R717R714Q700R859C840

R868

Q702

R871

C852

R879

R878

R858

R862

Q836

CN835

CN834

CN705

Q903

Q902

CN891

CN832

R881

R882

Q833

Q832

IC703

IC702

C733

C1204

Q900

D892

R752

R744

Q707

IC891

D891

R947

R944

D890

R939

R941

R938

R940

CN830

IC892

IC893

R952

D893

Q901

C846 C841

D830

C836

Q710R747

Q709R746

Q708R745

Q834

D831

D832

C857

R886R885

R884

R875

Q835

R876

R872 C848

R865 C844

R873 C849

R866 C845

PbF

PFUP1693Z

C1223

R951

CL667

CL669

CL668

CL670

KX-MC6020

MAIN BOARD COMPONENT VIEW

Caution:

indicate measurement points of the DC power supply.

indicate GND or PG points.