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Panasonic KX MC6020 Service Manual - Page 380

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KX-MC6020HX 17.2. Main Board 17.2.1. Main Board (1) 1 2 3 4 SDBA0 SDBA1 2:4C 2:4C DDR_SDRAM_Interface A SDMA[0-12] 2:4A;2:4E 1 8 RA300 2 7 10 36 IC300 2:4A SDMD[0-31] B SDMA[10] 4 SDMA[12]RA301 SDMA[11] 10 4 SDMA[9] 3 SDMA[8] 2 SDMA[7] 1 SDMA[6] 4 SDMA[5] 3 SDMA[4] 2 SDMA[3] 1 SDMA[2] 4 SDMA[1] 3 SDMA[0] 2 1 NSDCS0 NSDRAS NSDCAS NSDWE SDUDM1 SDUDM0 SDLDM1 SDLDM0 SDUDQS1 SDUDQS0 SDLDQS1 SDLDQS0 NSDCKE NSDCLK2 SDCLK2 SDCLK NSDCLK 2:4C 2:4C 4 2:4C 3 2:4C 2 2:4C 1 2:4A 2:4E 2:4C 2:4B 2:4A 2:4D 2:4C 2:4E 2:4C 2:4C 2:4E 2:4E 5 5 6 7 8 RA302 5 10 6 7 8 RA303 5 10 6 7 8 RA304 5 10 6 7 8 R315 R316 R317 R318 R319 R320 R321 R322 R323 R324 R325 R326 R327 D3 C2 C1 SDMA12 SDMA11 SDMA10 D2 B1 E3 SDMA9 SDMA8 SDMA7 D1 E4 E2 SDMA6 SDMA5 SDMA4 E1 F3 F4 SDMA3 SDMA2 SDMA1 F2 F1 H4 SDMA0 SDBA1 SDBA0 NC G3 G2 G1 NSDCS1 NSDCS0 NSDCAS 33 J3 K4 L2 NSDRAS NSDWE SDUDM1 33 33 33 P1 W3 AC2 SDUDM0 SDLDM1 SDLDM0 33 33 33 M4 R3 W4 SDUDQS1 SDUDQS0 SDLDQS1 33 10 10 AB3 H3 H1 SDLDQS0 NSDCKE NSDCLK2 10 10 10 J2 U1 V1 SDCLK2 SDCLK NSDCLK SDMD31 SDMD30 SDMD29 SDMD28 SDMD27 SDMD26 SDMD25 SDMD24 SDMD23 SDMD22 SDMD21 SDMD20 SDMD19 SDMD18 SDMD17 SDMD16 SDMD15 SDMD14 SDMD13 SDMD12 SDMD11 SDMD10 SDMD9 SDMD8 SDMD7 SDMD6 SDMD5 SDMD4 SDMD3 SDMD2 SDMD1 SDMD0 PAD_DDR_VREF1 K3 L3 K2 K1 M3 M2 M1 N3 N1 P3 P2 P4 R1 T3 T2 T1 U3 W1 V3 W2 Y2 AA1 AA2 Y3 AB1 AB2 AC1 AA4 AD1 AD2 AE1 AC4 T4 RA311 SDMD[31] 4 5 33 SDMD[30] 36 SDMD[29] 27 SDMD[28] 1 8 RA312 SDMD[27] 4 5 33 SDMD[26] 36 SDMD[25] 27 SDMD[24] 1 8 RA313 SDMD[23] 4 5 33 SDMD[22] 36 SDMD[21] 27 SDMD[20] 1 8 RA314 SDMD[19] 4 5 33 SDMD[18] 36 SDMD[17] 27 SDMD[16] 1 8 RA315 SDMD[15] 4 5 33 SDMD[14] 36 SDMD[13] 27 SDMD[12] 1 8 RA316 SDMD[11] 4 5 33 SDMD[10] 36 SDMD[9] 27 SDMD[8] 1 8 RA317 SDMD[7] 4 5 33 SDMD[6] 36 SDMD[5] 27 SDMD[4] 1 8 RA318 SDMD[3] 4 5 33 SDMD[2] 36 SDMD[1] 27 SDMD[0] 18 +2.5V GND R338 R337 F1.2k F1.2k C303 C302 () 100n NC +3.3V SD_Interface 1 2 3 4 R308 R309 R310 R311 8 RA310 AN21 SDDAT3 7 10k AM22 SDDAT2 6 AM21 SDDAT1 5 AP22 SDDAT0 10k 10k 10k AN22 SDCMD AP23 SDIFCLK AN23 SDWP 10k AM23 SDCD R334 10k R335 10k PTOP HTRCTL M34 E34 N34 NLDEN NAPC NHSYNC NT3313NNCC +3.3V 6:2E HTEMP_WDT C XSYSRST BATRST 6B;3:2C;4:1D;5:5B;6:2C 6D +2.5V +3.3V R313 R314 F49.9 F49.9 C23 RST B22 BATRST B23 WDTRST AE3 BZRST25 AD3 BZVDD25 A20 BZRST33 D21 BZVDD33 THRMSTR1 THRMSTR0 THRMAVDD THRMAVSS U34 V32 V34 U33 9:6B 7B TONE TONEAVDD TONEAVSS W34 W31 V33 4:3E;12:1D +3.3V FSRTHERM FB & ADF ADOUT +3.3V DAOUT 1/3 1-1 C300 100n C301 100n GND FRMD[0-7] 3:2A;6:4A ROM_Interface GND +3.3V CRM0 RA319 10k 45 36 27 18 45 36 27 18 RA320 10k CRM1 D FRMA[0-25] NC FRMA[25] FRMA[24] RR330032( )4477 FRMA[23] R304 47 FRMA[22] R305 47 FRMA[21] R306 47 FRMA[20] R307 47 FRMA[19] 1 8 RA305 FRMA[18] 2 7 47 FRMA[17] 3 6 FRMA[16] 4 5 FRMA[15] 1 8 RA306 FRMA[14] 2 7 47 FRMA[13] 3 6 FRMA[12] 4 5 FRMA[11] 1 8 RA307 FRMA[10] 2 7 47 FRMA[9] 36 FRMA[8] 45 FRMA[7] 1 8 RA308 FRMA[6] 2 7 47 FRMA[5] 36 FRMA[4] 45 FRMA[3] 1 8RA309 FRMA[2] 2 7 47 FRMA[1] 36 FRMA[0] 45 IC300 B31 FRMA25 A31 FRMA24 C30 FRMA23 B30 FRMA22 A30 FRMA21 C29 FRMA20 D29 FRMA19 B29 FRMA18 A29 FRMA17 C28 FRMA16 D27 FRMA15 B28 FRMA14 A28 FRMA13 C27 FRMA12 C26 FRMA11 B27 FRMA10 A27 FRMA9 B26 FRMA8 A26 FRMA7 D25 FRMA6 C25 FRMA5 B25 FRMA4 A25 FRMA3 B24 FRMA2 C24 FRMA1 A24 FRMA0 FRMD7 D33 FRMD6 D32 FRMD5 E31 FRMD4 C34 FRMD3 C33 FRMD2 B34 FRMD1 A33 FRMD0 B32 NFROE A32 R331 47 NFRWE C31 R332 NFRCE D30 R333 47 47 Tel IO25 M33 IO26 H31 IO27 E33 IO28 P33 IO29 AM24 IO30 AM25 Panel IO31 AN25 IO32 AP26 RS232C IO33 AP27 IO34 AL25 RS232C IO35 AN27 IO36 AM27 Tel RS232C IO37 IO38 AN26 AL23 L324 L325 R336 L326 L327 L328 L329 RA321 4 3 2 RA322 1 4 3 2 3:2D;6:2B 1 3:2C;6:2B 3:2D 12:3E 47 6:2B 47 6:2B 1k 4:3D 1k 4:3D 1k 4:3D 1k 4:3D 1k 4:3E 4:1E 4:1E 6B;12:1B 4:1E 47 FRMD[7] 5 FRMD[6] 6 FRMD[5] 7 FRMD[4] 8 47 FRMD[3] 5 FRMD[2] 6 FRMD[1] 7 FRMD[0] 8 NFROE NFRWE NFRCE CNGMUTE NVIDEOCS NIOCS CLCDRST KSTART KTXD KSCLK OPERST UARTTXD2 MBS0 UARTRXD2 MBS1 RING UARTTXD3 R339( )NC R341( R343 )1N0Ck R345( )NC CRM2 CRM3 CRM4 CRM5 +3.3V (1-2 Phase excitation) E F Tel HOOK EXTRLY POLCLK POLON PCCFUCUT PCKFUCUT ADUM_I1 FAN1FULL +3.3V FAN1HALF FAN2FULL FAN2HALF ANSEL0 ANSEL1 ANSEL2 TX_Fchange SEN0LED SEN1LED OPM_I1 PWRDWN REGGAIN1 REGGAIN2 NENGINT NPOLLD 12:7E 12:6A 7:3E 7:3F 9:6E 9:6D 8:6E 10:2D 10:2D 10:2E 10:2E R328 7C 7C 7B 12:5E 7:3A L396( 7:3B 8:6B R330 5:7C 10:5D 10:5E 6:4B 7:3F R329 10k ) NC 10k 10k P34 IO0 R33 IO1 AE32 IO2 AE33 IO3 AD32 IO4 AE34 IO5 AD33 IO6 AD34 IO7 AC31 IO8 AC32 IO9 AC33 IO10 AC34 IO11 AB32 IO12 AB33 IO13 AB34 IO14 AA32 IO15 AA31 IO16 AA33 IO17 AA34 IO18 Y32 IO19 Y33 IO20 W33 IO21 W32 IO22 Y34 IO23 R32 IO24 IO39 AP24 RS232C IO40 AN24 IO41 AP25 IO42/MMA AL27 IO43/MMXA AN29 IO44/MMB AM29 Motor IO45/MMXB IO46/OPMA AL29 AN30 IO47/OPMXA AM30 IO48/OPMB AP31 IO49/OPMXB AL30 IO50/CRM0 AM31 IO51/CRM1 AP32 IO52/CRM2 AN32 IO53/CRM3 AN34 IO54/CRM4 AM33 IO55/CRM5 AM34 IO56/ADFMEN AL32 IO57/CRMEN AL33 Tel IO58 P32 LAN Tel IO59 E32 IO60 F31 Tel IO61 D34 MMPWR AP30 OPMPWR AN31 CRMPWR AP33 4:1E 8:6D 8:6E 8:6D 8:6E 8:6B 8:6B 8:6B 8:6B 4:2B 4:2B 4:2B 4:2B 4:2B 4:2B 4:2B 4:2B 12:7C 3:8F 12:4D 12:6D 8:6D 8:6B 4:2B MBO0 UARTRXD3 MBO1 ADUM_PHA ADUM_ENA ADUM_PHB ADUM_ENB OPM_PHA OPM_ENA OPM_PHB OPM_ENB CRM0 CRM1 CRM2 CRM3 CRM4 CRM5 ADFMEN CRMEN CIDRLY XLANRST HSSPMUTE SPMUTE ADUM_PWR OPM_PWR CRM_PWR R340 10k R342 10k R344 R346 ( )1N0Ck GND CL311 M-TDO CL300 M-TRSTN CL301 M-TCK CL302 M-TMS CL303 M-TDI CL304 TP for Modem JTAG KX-MC6020HX SCHEMATIC DIAGRAM (MAIN BOARD No.1) (1/3) 380

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

380

KX-MC6020HX

17.2.

Main Board

17.2.1.

Main Board (1)

KX-MC6020

SCHEMATIC DIAGRAM (MAIN BOARD No.1)

(1/3)

1/3

RA311

RA312

RA313

RA314

RA318

RA315

RA316

RA317

SDMA[0-12]

2:4A;2:4E

SDBA1

2:4C

SDBA0

2:4C

NSDCS0

2:4C

NSDRAS

2:4C

NSDCAS

2:4C

NSDWE

2:4C

SDUDM1

2:4C

SDUDM0

2:4A

SDLDM1

2:4E

SDLDM0

2:4C

NSDCKE

2:4E

NSDCLK2

2:4C

SDCLK2

2:4C

SDCLK

2:4E

NSDCLK

2:4E

R315

R316

R318

R317

R320

R322

R321

R319

R324

R326

R325

R323

R327

RA300

RA302

RA304

RA301

RA303

F1.2k

R338

GND

100n

C303

F1.2k

R337

(

)

C302

R333

R331

R332

R303

RA307

RA309

RA308

RA306

RA305

FRMA[0-25]

NFROE

3:2D;6:2B

NFRWE

3:2C;6:2B

NFRCE

3:2D

BATRST

XSYSRST

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

FRMD[0-7]

3:2A;6:4A

SDMD[0-31]

2:4A

CRM3

4:2B

CRM0

4:2B

CRM1

4:2B

CRM2

4:2B

CRM4

4:2B

CRM5

4:2B

ADFMEN

4:2B

CRMEN

4:2B

CRM_PWR

4:2B

SEN1LED

7:3B

PWRDWN

5:7C

KSCLK

4:3D

KSTART

4:3D

OPERST

4:3E

ADOUT

FSRTHERM

9:6B

GND

100n

C300

GND

100n

C301

DAOUT

4:3E;12:1D

HSSPMUTE

12:4D

SPMUTE

12:6D

CIDRLY

12:7C

HOOK

12:7E

EXTRLY

12:6A

UARTTXD3

4:1E

UARTTXD2

4:1E

UARTRXD2

4:1E

UARTRXD3

4:1E

RING

6B;12:1B

ADUM_PHA

8:6D

ADUM_ENA

8:6E

ADUM_ENB

8:6E

OPM_PHA

8:6B

OPM_ENA

8:6B

OPM_PHB

8:6B

OPM_ENB

8:6B

OPM_PWR

8:6B

ADUM_PWR

8:6D

ANSEL0

10k

R334

POLCLK

7:3E

POLON

7:3F

NPOLLD

7:3F

F49.9

R313

F49.9

R314

10k

R335

NENGINT

6:4B

NIOCS

6:2B

NVIDEOCS

6:2B

PCCFUCUT

9:6E

PCKFUCUT

9:6D

FAN1FULL

10:2D

FAN1HALF

10:2D

FAN2FULL

10:2E

FAN2HALF

10:2E

ANSEL1

ANSEL2

REGGAIN1

10:5D

XLANRST

3:8F

RA321

RA322

REGGAIN2

10:5E

+2.5V

+3.3V

ADUM_PHB

8:6D

R302

(

)

ADUM_I1

8:6E

OPM_I1

8:6B

10k

RA320

10k

RA319

+3.3V

KTXD

4:3D

CNGMUTE

12:3E

HTEMP_WDT

6:2E

SEN0LED

7:3A

R304

R305

R306

R307

+3.3V

10k

R329

10k

R328

10k

R330

10k

R342

10k

R340

R345

(

)

R339

(

)

10k

R343

R341

(

)

10k

R346

R344

(

)

+3.3V

GND

SDUDQS1

2:4B

SDUDQS0

2:4A

SDLDQS1

2:4D

SDLDQS0

2:4C

CLCDRST

4:3D

L325

L324

10k

RA310

10k

R308

10k

R309

10k

R310

10k

R311

+3.3V

CL311

IC300

SDMA12

SDMA11

SDMA10

SDMA9

SDMA8

SDMA7

SDMA6

SDMA5

SDMA4

SDMA3

SDMA2

SDMA1

SDMA0

SDBA1

SDBA0

NSDCS1

NSDCS0

NSDCAS

NSDRAS

NSDWE

SDUDM1

SDUDM0

SDLDM1

AC2

SDLDM0

SDUDQS1

SDUDQS0

SDLDQS1

AB3

SDLDQS0

NSDCKE

NSDCLK2

SDCLK2

SDCLK

NSDCLK

AN21

SDDAT3

AM22

SDDAT2

AM21

SDDAT1

AP22

SDDAT0

AN22

SDCMD

AP23

SDIFCLK

AN23

SDWP

AM23

SDCD

C23

RST

B22

BATRST

B23

WDTRST

AE3

BZRST25

AD3

BZVDD25

A20

BZRST33

D21

BZVDD33

SDMD26

SDMD25

SDMD24

SDMD23

SDMD22

SDMD21

SDMD20

SDMD19

SDMD18

SDMD17

SDMD16

SDMD15

SDMD14

SDMD13

SDMD12

SDMD11

AA1

SDMD10

AA2

SDMD9

SDMD8

AB1

SDMD7

AB2

SDMD6

AC1

SDMD5

AA4

SDMD4

AD1

SDMD3

AD2

SDMD2

AE1

SDMD1

AC4

SDMD0

PAD_DDR_VREF1

M34

PTOP

E34

HTRCTL

N34

NLDEN

N33

NAPC

T31

NHSYNC

U34

THRMSTR1

V32

THRMSTR0

V34

THRMAVDD

U33

THRMAVSS

W34

TONE

W31

TONEAVDD

V33

TONEAVSS

SDMD31

SDMD30

SDMD29

SDMD28

SDMD27

IC300

B31

FRMA25

A31

FRMA24

C30

FRMA23

B30

FRMA22

A30

FRMA21

C29

FRMA20

D29

FRMA19

B29

FRMA18

A29

FRMA17

C28

FRMA16

D27

FRMA15

B28

FRMA14

A28

FRMA13

C27

FRMA12

C26

FRMA11

B27

FRMA10

A27

FRMA9

B26

FRMA8

A26

FRMA7

D25

FRMA6

C25

FRMA5

B25

FRMA4

A25

FRMA3

B24

FRMA2

C24

FRMA1

A24

FRMA0

P34

IO0

R33

IO1

AE32

IO2

AE33

IO3

AD32

IO4

AE34

IO5

AD33

IO6

AD34

IO7

AC31

IO8

AC32

IO9

AC33

IO10

AC34

IO11

AB32

IO12

AB33

IO13

AB34

IO14

AA32

IO15

AA31

IO16

AA33

IO17

AA34

IO18

Y32

IO19

Y33

IO20

W33

IO21

E31

FRMD5

C34

FRMD4

C33

FRMD3

B34

FRMD2

A33

FRMD1

B32

FRMD0

A32

NFROE

C31

NFRWE

D30

NFRCE

M33

IO25

H31

IO26

E33

IO27

P33

IO28

AM24

IO29

AM25

IO30

AN25

IO31

AP26

IO32

AP27

IO33

AL25

IO34

AN27

IO35

AM27

IO36

AN26

IO37

AL23

IO38

AP24

IO39

AN24

IO40

AP25

IO41

AL27

IO42/MMA

AN29

IO43/MMXA

AM29

IO44/MMB

AL29

IO45/MMXB

AN30

IO46/OPMA

AM30

IO47/OPMXA

AP31

IO48/OPMB

AL30

IO49/OPMXB

AM31

IO50/CRM0

AP32

IO51/CRM1

AN32

IO52/CRM2

AN34

IO53/CRM3

AM33

IO54/CRM4

AM34

IO55/CRM5

D32

FRMD6

W32

IO22

Y34

IO23

R32

IO24

AL32

IO56/ADFMEN

AL33

IO57/CRMEN

P32

IO58

E32

IO59

D33

FRMD7

F31

IO60

D34

IO61

AP30

MMPWR

AN31

OPMPWR

AP33

CRMPWR

R336

L329

L328

L327

L326

CL301

M-TRSTN

CL302

M-TCK

CL303

M-TMS

CL300

M-TDO

CL304

M-TDI

(

)

L396

TX_Fchange

12:5E

SDMD[31]

SDMD[30]

SDMD[29]

SDMD[28]

SDMD[27]

SDMD[26]

SDMD[25]

SDMD[24]

SDMD[23]

SDMD[22]

SDMD[21]

SDMD[20]

SDMD[19]

SDMD[18]

SDMD[17]

SDMD[16]

SDMD[15]

SDMD[14]

SDMD[13]

SDMD[12]

SDMD[11]

SDMD[10]

SDMD[9]

SDMD[8]

SDMD[7]

SDMD[6]

SDMD[5]

SDMD[4]

SDMD[3]

SDMD[2]

SDMD[1]

SDMD[0]

SDMA[0]

SDMA[1]

SDMA[2]

SDMA[3]

SDMA[4]

SDMA[5]

SDMA[6]

SDMA[7]

SDMA[8]

SDMA[9]

SDMA[11]

SDMA[12]

SDMA[10]

FRMA[19]

FRMA[18]

FRMA[17]

FRMA[16]

FRMA[15]

FRMA[14]

FRMA[13]

FRMA[12]

FRMA[11]

FRMA[10]

FRMA[9]

FRMA[8]

FRMA[7]

FRMA[6]

FRMA[5]

FRMA[4]

FRMD[0]

FRMD[1]

FRMD[2]

FRMD[3]

FRMD[4]

FRMD[5]

FRMD[6]

FRMD[7]

FRMA[24]

FRMA[25]

FRMA[20]

FRMA[21]

FRMA[22]

FRMA[23]

FRMA[0]

FRMA[3]

FRMA[1]

FRMA[2]

DDR_SDRAM_Interface

ROM_Interface

SD_Interface

FB & ADF

Panel

Tel

RS232C

Tel

Motor

TP for Modem JTAG

LAN

Tel

RS232C

Tel

MBS0

MBS1

MBO0

MBO1

-1

(1-2 Phase excitation)

CRM0

CRM1

CRM2

CRM3

CRM4

CRM5