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Samsung ML-1430, Руководство по обслуживанию

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Precautions

1-2

Samsung Electronics

1.3  Tools for Troubleshooting

The following tools are recommended for safe and smooth troubleshooting described in this service manual.

DCU(Diagnostic Control Unit)

Standard: Test equipment to diagnose the
Laser printer supplied by Samsung
Electronics.

DVM(Digital Volt Meter)

Standard: Indicates more than 3 digits.

Electronic Scale

Standard: Equipment to check the weight
of consumables(toner cartridge) supplied
by Samsung Electronics. (The gram unit
can be measured.)

Driver

Standard: "-" type, "+" type (M3 long, M3
short, M2 long, M2 short).

Pinset

Standard: For general home use, small
type.

Cotton Swab

Standard:  For general home use, for med-

ical service.

Cleaning Equipments a
IPA(Isopropyl Alcohol)dry cloth or a
soft stuff neutral detergent.

Software(Driver) installation CD
ROM

Mind your hands not to be touched when
you disassemble and reassemble PBA ASS'Y,
such as the main board, SMPS, HVPS.

Note

1

2

3

4

5

6

7

8

Содержание ML-1430

Страница 1: ...RVICE LASER PRINTER ML 1430 Manual LASER PRINTER CONTENTS 1 Precautions 2 Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 Exploded Views and Parts List 6 Block Diagram 7 Connection Diagram ...

Страница 2: ...2A This service manual is also provided on the web the ITSELF system Samsung Electronics Co Ltd http itself sec samsung co kr This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law ...

Страница 3: ... of the information in this manual are prohibited from free duplication use or translation without prior written approval except in cases allowed by the Copyright Act Specifications are subject to change without prior notice Copyright c 2002 12 Samsung Electronics Digital Printing CS Group ...

Страница 4: ...TENZIONE PRECAUCION CAUTION Avoid exposure to invisible laser radiation when the development unit is not installed INVISIBLE LASER RADIATION WHEN THIS COVER OPEN DO NOT OPEN THIS COVER UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEOFFNET NIGHT DEM STRAHL AUSSETZEN REYONNEMENT LASER INVISIBLE EN CAS D OUVERTURE EXPOSITION DANGERUSE AU FAISCEAU RADIAZIONE LASER INVISIBLE IN CASO DI APERTURA EVITARE L ...

Страница 5: ...le Standard Equipment to check the weight of consumables toner cartridge supplied by Samsung Electronics The gram unit can be measured Driver Standard type type M3 long M3 short M2 long M2 short Pinset Standard For general home use small type Cotton Swab Standard For general home use for med ical service Cleaning Equipments a IPA Isopropyl Alcohol dry cloth or a soft stuff neutral detergent Softwa...

Страница 6: ...aper Toner User interface ML 1430 14 ppm 600 x 600 dpi Under 12 0 sec 30 sec 250 W Print 10W Sleep 329 x 355 x 231 mm 13 x 14 x 9 1 Max 6 5Kg With Toner Cartridge Jupiter3 66MHz 8MB Equivalent SPL Samsung Printer Language IEEE1284 USB Windows 95 98 2000 Me NT Linux Radhat 6 0 iMac Mac OS 8 0 External 150 sheets 100 sheets 1 sheet A4 Letter Legal Executive B5 A5 Folio 7 3 4 Monarch 10 DL C5 C6 B5 S...

Страница 7: ...e left lower part 4 Remove a screw of the front cover PCB and remove the connector then remove the cover 3 1 2 Other Covers 1 Before you remove other covers you should remove the Front cover in advance 2 Rear Cover Remove the cover in the direction of 3 Top Cover Remove the cover in the direction of 4 Side Cover L R Remove the cover in the direction of 3 1 Samsung Electronics 3 Disassembly and Rea...

Страница 8: ...o screws of PCB cover and widen the hooks to remove 3 Remove two screws and remove LED panel 4 Remove PCB from the PCB cover 3 3 LSU Laser Scanning Unit 1 Before you remove LSU you should remove front cover rear cover and top cover Main Cover see 3 1 Main Cover 2 Remove three screws securing the LSU 3 Remove two connectors from the LSU then remove the LSU a b c ...

Страница 9: ...move the motor assembly you should remove Main Cover see 3 1 Main Cover Shield Engine Assembly 2 Remove one screws securing the Fan 3 Remove five screws securing the Motor Assembly and remove a connector from Engine Board Engine board and SMPS Board are integrated then take the Motor Assembly out X O Shield Ground Note When you reassemble the FAN make sure that the direction of the Fan is cor rect...

Страница 10: ...hen take the board out 3 7 Fuser Assembly 1 Before remove fuser assembly you should remove Main Cover see 3 1 Main Cover 2 Remove two ground screws and a connector as illus trated 3 Remove two screws and unplug a fuser assembly harness Then use a screwdriver to unlatch the fuser assembly to remove Note When you reassemble the HVPS board make sure that five terminals should be put in place Terminal...

Страница 11: ...rom the fuser assembly and remove the thermostat cover then remove two screws securing the thermostat 2 Remove two screws from the fuser assembly and take the Heat Roller out 3 Take the halogen lamp out from the Heat Roller Note When you reassemble the halogen lamp handle it with care as it is fragile ...

Страница 12: ...ove Main Cover see 3 1 Main Cover 2 Remove screws in the order of then remove the shield engine assembly 3 Unplug connectors from the main board and connec tors from SMPS then remove the SMPS Remove four screws from SMPS and remove the SMPS board Note The Engine board and SMPS board are integrated in a body a b a b ...

Страница 13: ...e Main Cover see 3 1 Main Cover SMPS board see 3 9 SMPS Board 2 Remove two screws from the main board and unplug all of connectors then remove the board 3 Release four snap fits securing the insulator engine board and then remove the insulator 4 Release four snap fits securing the sensor board and then remove the sensor board Main B d ...

Страница 14: ...3 4 3 4 JAM 2 Page 4 13 4 3 5 Multi Feeding Page 4 14 4 3 6 Paper rolled in the fuser Page 4 14 4 3 7 OPC Page 4 15 4 4 The cause and solution of the malfunction 4 4 1 All LEDs blinking Fuser Error Page 4 16 4 4 2 All LEDs blinking SCAN ERROR Page 4 16 4 4 3 Not function of the gear of the fuser due to melt ing away Page 4 17 4 4 4 Paper Empty Page 4 17 4 4 5 Paper Empty without indication Page 4 ...

Страница 15: ...per is passing out of the Feed Sensor 40 Feed Sensor off The paper has passed out of the Feed Sensor 50 Paper Out The paper has passed out of Exit Sensor 69 Sleep Mode The fuser power turned off to minimize the power consumption Error Code When detecting the malfunction the printing is stopped to indicate error code 60 62 68 Fuser Error The error in the fuser occurred There is a short circuit in t...

Страница 16: ...itch the voltage The middle and right one of the three LEDs are on and 530 voltage output by DEV HV terminal Caution High voltage probe should be used 05 LSU Operating System The scanning motor of LSU is in operation the right LED of the three buttons on Press the Up button to Check LD LD is functioning and the middle button is on If the LD is normal all LEDs are on 06 Pickup clutch on The Solenoi...

Страница 17: ... 89 shows in the DCU and the printer is warming up After warming up the printer is in READY Mode and 88 shows in the DCU In this mode without any detection the printer begins printing trial printing and data from the PC It is convenient to use this mode when the engine malfunction is detected in the control board 4 1 5 Paper Path Layout EXIT 2 FUSER FACE UP EXIT 1 FEED SEN EMPTY SEN KNOCK UP KNOCK...

Страница 18: ...ge Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1 Foreign matter stuck onto the window of internal lenses of LSU mirror 2 Foreign matter or toner particles between the developer roller and blade In case the life of the developer has been expired white lines occur in front of the image 3 It may occur when Burr and foreign sub stances are o...

Страница 19: ...r Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1 If dark or blurry black spots occur periodi cally the rollers in the Developer may be contaminated with foreign matte or paper particles Charge roller 37 mm interval OPC drum 75mm interval 2 If faded areas or voids occur in a black image at intervals of 75 mm or black spots occur elsewhere the OPC drum sur...

Страница 20: ...rint out 3 Wait 30 minutes after printer is powered on before you start printing 4 Clean up the contaminated area by the toner 5 Replace the HVPS if the problems are not solved by the above four directions Service parts Figure 11 Chapter 5 4 2 6 Dark Image or a Black Description The printed image is dark Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Caus...

Страница 21: ...artridge replace the developer and try to print out 4 2 8 Background Description Light dark background appears in whole area of the printing Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1 Recycled recording paper has been used 2 The life of the Developer has expired The weight at the expiration of the developer s life 800 20g 3 The up to ...

Страница 22: ... toner particles 2 Occur in the developer cartridge replace the developer and try to print out 3 Replace the engine board if not solved by the above directions 1 2 Service Parts Figure 9 chapter 5 4 If not solved by the direction 3 check the transfer roller lifetime and replace it Service Parts Figure 8 2 chapter 5 5 Wait about 1 hour after power on before using printer 4 2 10 Ghost 2 Description ...

Страница 23: ...veloper and try to print out 2 Check the approved voltage of the supply roller and contact of the terminal and adjust if necessary 4 2 12 Ghost 4 Description Ghost occurs at 47mm intervals DigitalPrinter DigitalPrinter DigitalPrinter DigitalPrinter DigitalPrinter DigitalPrinter 47mm Check and Cause Solution The temperature of the fuser is maintained high 1 Disassemble the fuser and remove the cont...

Страница 24: ...5 Blank Page Print out 1 Description Blank page is printed Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution Bad ground contacts in OPC and or devel oper Remove contamination of the terminals of the developer and the unit 4 2 16 Blank Page Print out 2 Description 1 Blank page is printed 2 One or several blank pages are printed 3 When the print...

Страница 25: ...ion 1 Check the Solenoid by using DCU diagnostic mode 06 2 Check if the pad is loose due to bad sealing of the side pad 3 Check the surface of the roller pick up for foreign matter 4 If continuous clusters occur check whether the assembly slot between shaft pickup and housing pickup become open or is broken away 5 If the paper feeds into the printer rand Jam 0 occurs perform DCU to check feed sens...

Страница 26: ...rmed in shape Check whether burrs occur in the assembly part of the actuator exit or not and if the actuator is smoothly operated Check if foreign matters and wire get caught in the actuator exit s operation 2 If the paper is stuck in the fuser dis assemble the fuser and remove the jammed paper and clean the surface of the pressure roller with dry gauze 3 Remove the jammed paper after disas sembli...

Страница 27: ...arts Figure 13 chapter 5 2 Clean the pad friction with soft clothe dampened with IPA Isopropyl Alcohol 3 Use the smooth paper 4 3 6 Paper rolled in the fuser Description If contaminated at intervals of 57mm on the back of a paper Check and Cause Solution 1 Contamination of the pressure roller Background Hot off set 1 Disassemble the fuser clean the area between the Heat roller and Thermistor and r...

Страница 28: ... Solution 1 Paper is too much thin 2 The face of paper is curled 1 Recommend to use normal paper 2 How to remove the rolled paper in the OPC Remove the paper while turning the OPC against the ongoing direction Clean fingerprints on the OPC softly with soft cloth dampened with IPA Isopropyl Alcohol or tis sue ...

Страница 29: ...ly 4 Check if the overheat circuit works properly 5 The fuser gear is defective due to melting away 1 If the thermostat is open replace the fuser and check following items 2 If the thermistor sensor device is located deep in the sponge replace the fuser 3 Check if the circuit of overheat mode works properly 4 Run DCU mode Perform DCU diagnostic code 10 4 4 2 All LEDs blinking Scan Error Descriptio...

Страница 30: ...te Check and Cause Solution 1 Bending or deformation of the actuator of the paper sen sor 2 The function of the sensor board is defective Perform DCU mode Perform DCU diagnostic code 8 1 Replace the defective actuator Service Parts Figure 8 17 Chapter 5 2 Replace the sensor board Service Parts Figure 8 10 Chapter 5 4 4 5 Paper Empty without indication Description The paper lamp on the operator pan...

Страница 31: ...ure 1 chapter 5 2 Check the insertion of the Cover Open Sensor Connect 3 Replace the Main Control board or Cover Open Sensor Service Parts Figure 9 chapter 5 4 4 7 No lamp on when the cover is open Description The ERROR lamp does not come on even when the printer cover is open Check and Cause Solution 1 Check the connector CN8 and circuit of the cover switch department in the Main Control board Pe...

Страница 32: ...Figure 12 chapter 5 2 Replace the SMPS if necessary Service Parts Figure 10 chapter 5 4 4 9 No Power Description When system power is turned on all lamps on the operator panel do not come on Check and Cause Solution 1 Check if the power input and SMPS output are normal 2 Check the inferiority of LED Panel on the front cover if the LED of Panel does not appear after normal warming up 1 Replace the ...

Страница 33: ...nting vertical line gets curved Check and Cause Solution 1 If the supply of 24v is unstable in the Main Control board linking with LSU check drive by DCU Mode LSU Check 05 LSU Motor on 1 Replace LSU Service Parts Figure 13 chapter 5 2 Replace the Main Control board Service Parts Figure 9 chapter 5 ...

Страница 34: ...e damage to the cartridge 4 5 2 Service for the Life of Toner Cartridge If the printed image is light due to the life of the toner you can temporarily improve the print quality by redistributing the toner Shake the toner cartridge however you should replace the toner cartridge to solve the problem thoroughly 4 5 3 Service for Judgement of Inferior Expendables and the Standard of Guarantee Please r...

Страница 35: ...the falling of the toner 2 Check the appearance of both ends of the developer OPC drum 2 The center of the printed mat ter is contaminated with toner 1 Check whether foreign sub stances or toner are stuck to the terminal contact point of the developer 2 Check whether the state of the terminal assembly is normal 1 All of 1 2 3 above 1 The weight of the developer ended 800g 20g 2 If it become better...

Страница 36: ...stance or toner are stuck to the terminal contact point of the developer 2 Check whether the state of the terminal assembly is nor mal 1 In case of 1 above Run OPC Cleaning Mode Print 4 5 times repeatedly to remove Especially check foreign sub stance on the OPC surface then remove them with a clean gauze moistened with IPA Isopropyl Alcohol not to damage OPC if necessary Never use usual alcohol 2 ...

Страница 37: ...e charged roller terminal 3 The printed image is dark and ghost occurs 1 Check foreign substance attached to the terminal point of contact of the developer and the state of assembly Especially check the devel oping roller terminal 1 All of 1 2 3 above 1 Remove toner and foreign sub stances adhered to the contact point of the developer 2 The contact point of the unit facing that of the developer al...

Страница 38: ... DCU to check the Error Status 2 Replace the printer cable If the problems not solved even after the cable replaced check the amount of the remaining tone refer to Toner Cartridge Service 4 5 3 Check if the connection between PC and printer port is proper If you use windows check if the printer dri ver in the controller is set up If the printer driver is properly set up check in which program the ...

Страница 39: ... than the RAM problem In this case provide more space for the hard disk Secure more space using the disk utilities program 2 The connection of the cable and printer port is not proper Check if the connection is properly done and if the parallel port in CMOS is rightly set up 3 As a printer port Select ECP or SPP among SPP Normal ECP and EPP modes increase print ing speed SPP normal mode support 8 ...

Страница 40: ...rt in the CMOS SETUP 2 Printer Driver Error 3 Error message from insufficient memory The printing job sometimes stops or due to insufficient virtual memory but it actually comes from the insuffi cient space of the hard disk 1 Select SPP Normal or ECP LPT Port the among ECP EPP or SPP in the CMOS Setup 2 Check the printer in My Computer to see if the printer driver is compatible to the present driv...

Страница 41: ... unnecessary files to provide more space to start printing job 2 If there are some files with the extension name of jnl Delete them and Reboot the Windows to restart printing job 3 Shut down all other programs except the current one if possible 4 Delete the printer driver completely and reinstall it 5 After rebooting the computer check for viruses restore the damaged files and reinstall the progra...

Страница 42: ... 2 Front Cover Assembly page 5 4 5 3 Shield Engine Unit Assembly page 5 5 5 4 Frame Lower Assembly page 5 6 5 5 Engine Assembly page 5 8 5 6 Fuser Assembly page 5 10 5 7 Plate Upper Unit Assembly page 5 12 For the latest exact information see ITSELF System http itself sec samsung co kr ...

Страница 43: ...Exploded Views and Parts List Samsung Electronics 5 2 5 1 Front Cover Assembly 13 3 16 6 8 9 4 7 11 5 17 10 14 15 12 1 12 0 2 1 ...

Страница 44: ...E LOWER 1430 JC96 02544A 1 O ML 1430 XAA XAC ELA UNIT FRAME LOWER 1430 JC96 02544B 1 O ML 1430 XIL XEV 9 MEA ETC ENGINE 1430 1 X 10 ELA UNIT SMPS_V1 JC96 02559A 1 O ML 1430 XAA XAC ELA UNIT SMPS_V2_CHANA JC96 02234B 1 O ML 1430 XIL XEV 11 SMPS HVPS JC44 00024A 1 O 12 ELA UNIT RX DRIVE JC96 02125A 1 O 12 1 MOTOR STE 7 5 JC31 00005B 1 O 13 UNIT LSU JC59 00017A 1 O 14 PBA MAIN CON 14 JC92 01413A 1 O ...

Страница 45: ...112C 1 O 2 PMO COVER FRONT JC72 00677W 1 O ML 1430 XAA XAC PMO COVER FRONT JC72 00677Y 1 O ML 1430 XIL COVER M FRONT XEV JC63 00133A 1 O ML 1430 XEV 3 PMO GUIDE STACKER JC72 00511A 1 O 4 PMO DOOR FACE UP 1 X 5 PPR SHEET PAPER GUIDE 2 X 6 PMO KEY A 1 X 7 PMO KEY B 1 X 8 PMO LENS SED 1 X 9 PMO COVER PCB JC72 00678A 1 O 10 PMO STOPPER JC72 00519A 1 O 11 PMO BRKT PUSH DEVE 1 X 12 PBA SUB LED PANEL JC9...

Страница 46: ...ervice not available No Description SEC Code Q ty SA Remark 0 ELA HOU SHIELD_ENGINE 1210 1 X 1 MEC SHIELD BRKT CONTROL JC75 00105C 1 O 1 1 IPR SHIELD ENGINE USB JC70 00130C 1 O 1 2 IPR BRKT CONTROLLER JC70 00131A 1 O 2 PCT INSULATOR_SMPS1210 JC72 00828A 1 O 3 CBF HARNESS INLET SWITCH JC39 00134A 1 O Shield Engine Unit Assembly Parts List ...

Страница 47: ... List Samsung Electronics 5 6 5 4 Frame Lower Assembly 3 3 1 2 3 2 1 2 2 2 2 3 2 1 2 4 33 34 12 5 17 6 6 4 15 31 25 16 24 22 23 21 8 7 27 28 10 35 9 10 1 10 2 22 23 21 11 13 14 26 38 38 2 38 1 36 20 37 39 30 1 26 29 19 18 32 0 ...

Страница 48: ... 1 O 10 1 IPR BRKT SENSOR 1 X 10 2 CBF HARNESS COVER 1 X 11 IPR GUIDE TR 1 X 12 IPR PLATE TERMINAL 1 X 13 IPR SAW_PLATE 1 X 14 PCT FILM SAW 1 X 15 IPR EARTH TRANS 1 X 16 IPR GROUND_GUIDE 1 X 17 IPR GROUND_HVPS 1 X 18 IPR GROUND_FUSER 1 X 19 IPR GROUND DRIVE 1 X 20 CBF HARNESS OPE GND 1 X 21 PMO HOLDER PR 2 X 22 BEARING PRESSURE R 2 X 23 SPRING ETC PR_1430 2 X 24 MEC ROLLER_PR 1430 JC75 00159A 1 O ...

Страница 49: ... Views and Parts List Samsung Electronics 5 8 5 5 Engine Assembly 20 1 20 4 20 3 20 10 14 14 2 14 1 7 5 3 9 18 2 18 3 18 1 18 2 1 22 11 6 23 8 20 2 19 2 19 1 19 21 3 21 2 21 1 21 15 16 12 17 17 1 17 3 17 2 4 13 ...

Страница 50: ...OLLO 1 X 15 MEC SIDE PAD L 1 X 16 MEC SIDE PAD R JC75 00051B 1 O 17 MEC KNOCK UP ASS Y JC75 00053A 1 O 17 1 PMO PLATE KNOCK UP 1 X 17 2 PMO CAM KNOCK UP 1 X 17 3 IPR BAR_KNOCK UP 1 X 18 MEC GEAR PICK UP JC75 00056A 1 O 18 1 PMO GEAR_PICKUP 1 1 X 18 2 PMO GEAR_PICKUP 2 1 X 18 3 SPRING ETC PICK UP GEAR 1 X 19 MEC CAM PICK UP JC75 00072A 1 O 19 1 PMO CAM_PICKUP 1 X 19 2 PMO SHAFT_PICKUP 1 X 20 MEA UN...

Страница 51: ...Exploded Views and Parts List Samsung Electronics 5 10 5 6 Fuser Assembly 31 15 14 14 2 14 1 10 17 22 11 18 4 12 2 7 13 9 5 1 8 6 19 3 20 S 1 S 1 S 1 S 2 0 24 30 29 27 26 28 21 24 23 25 17 16 ...

Страница 52: ...B 1 O 9 IPR ELECTRODE_PLATE 1 X 10 IPR GROUND_FU 1 X 11 PMO GUIDE CLAW 5 X 12 IPR ELECTRODE WIRE1 1 X 13 IPR ELECTRODE WIRE S 1 X 14 MEA ETC SHAFT EXIT 1 X 14 1 PMO SHAFT_EXIT Z15 1 X 14 2 RMO RUBBER_EXIT 4 X 15 PMO ROLLER_IDLE EXIT 4 X 16 SPRING ETC EXIT 4 X 17 PMO GEAR_EXIT_DRV16 2 X 18 PMO GEAR_EXIT_IDLE 1 X 19 GEAR FUSER 1210 JC66 00037B 1 O 20 LABEL P CAUTION HOT_FUSER 1 X 21 SPRING ETC EXIT ...

Страница 53: ...R PLATE 1 X 2 IPR PLATE SPRING DEV 2 X 3 MEA ETC ROLLER PICK UP 1 X 3 1 PMO HOUSING_PICKUP JC72 00109A 1 O 3 2 PMO IDLE_PICKUP 2 X 3 3 RMO ROLLER_PICKUP 1 X 4 SPRING ETC FEED 2 X 5 ICT ROLLER IDEL FEED 1 X 6 CABLE CLAMP 1 X 7 PMO HOLDER_PICKUP 2 X 8 PMO HOLDER_IDLE FEED 2 X Plate Upper Unit Assembly Parts List 5 6 Plate Upper Unit Assembly 0 6 7 4 8 2 2 3 2 3 3 3 3 3 1 3 7 4 8 5 1 ...

Страница 54: ...TOR FAN EXI T SENSOR HV PS B D MHV OPC GND SUPPLY DEV TH V BUFFER MHVPWM BI ASPWM THVPWM POWER SWI TCH I N LET LED 4 3 KEY IEEE 1284 CABLE VOL TAGE DETECT OR Crystal 10MHz Mai n Clock Osci l l ator 44 MHz Vi deo Clock Po we r On Re s e t C P U Jupiter3 USB 74LVX161284 Line Transcei ver PC 5V FS781BZB SOLENOIDE DEV_FUSE LSU ...

Страница 55: ... STOR 24V 24VS 1 2 3 1 2 3 COVER SWITCH 5V PEMPTY 1 2 3 4 1 2 3 4 FEED 5V GND SENSOR BOARD 36 PI N HOST COMPUTER IEEE1284 COMPATI ABLE CABLE J1 CN9 CN7 CN11 CN12 CN13 CN6 CN8 CN5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SMPS 5V GND 5V 5V GND 5V 5V GND 5V 24V GND 24V 24VS 24V GND 24V 24V GND 24V EXIT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 FU SER ON 17 18 19 20 21 22 23 24 ENGI...

Страница 56: ...Repair Manual Repair Manual 1 Block Diagram 2 Connection Diagram 3 Schematic Diagrams CONTENTS LASER PRINTER ML 1430 ...

Страница 57: ...sung Electronics Digital Printing CS Group Copyright c 2002 4 This manual is made and described centering around circuit diagram and circuit description needed in the repair center in the form of appendix ...

Страница 58: ...OR FAN EXI T SENSOR HV PS B D MHV OPC GND SUPPL Y DEV TH V BUFFER MHVP WM BI ASPW M THVPWM POWER SW I TCH I N L ET L ED 4 3 KEY IEEE 12 84 CABLE VOL TAGE DETECT OR Crystal 10MHz Mai n Clock Osci l l ator 44 MHz Vi deo Clock Po we r On Re s e t C P U Jupiter3 USB 74LVX 161284 Li ne Transcei ver PC 5V FS781BZB SOLENOIDE DEV_FUSE LSU This Document can not be used without Samsung s authorization ...

Страница 59: ...HERMI STOR 24V 24VS 1 2 3 1 2 3 COVER SWITCH 5V PEMPTY 1 2 3 4 1 2 3 4 FEED 5VGND SENSOR BOARD 36 PI N HOST COMPUTER IEEE1284 COMPATI ABLE CABLE J1 CN9 CN7 CN11 CN12 CN13 CN6 CN8 CN5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SMPS 5V GND 5V 5V GND 5V 5V GND 5V 24V GND 24V 24VS 24V GND 24V 24V GND 24V EXIT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 FU SER ON 17 18 19 20 21 22 23 24 ...

Страница 60: ...3 3 1 Samsung Electronics S C H E M ATIC DIAG R A M S Repair Manual 3 S ch e m atic Diagra m s 3 1 Main Circuit Diagram 1 5 This Document can not be used without Samsung s authorization ...

Страница 61: ...3 2 S C H E M ATIC DIAG R A M S Samsung Electronics Repair Manual Main Circuit Diagram 2 5 This Document can not be used without Samsung s authorization ...

Страница 62: ...3 3 Samsung Electronics S C H E M ATIC DIAG R A M S Repair Manual Main Circuit Diagram 3 5 This Document can not be used without Samsung s authorization ...

Страница 63: ...3 4 S C H E M ATIC DIAG R A M S Samsung Electronics Repair Manual Main Circuit Diagram 4 5 This Document can not be used without Samsung s authorization ...

Страница 64: ...3 5 Samsung Electronics S C H E M ATIC DIAG R A M S Repair Manual Main Circuit Diagram 5 5 This Document can not be used without Samsung s authorization ...

Страница 65: ...F R509 12KF R513 1W 3 R512 430 R511 47K C504 333 C1 104 C2 104 C3 35V 47uF R515 MGR1 2W 15MF R514 MGR1 2W 15MF ZD501 1W 100V D502 4KV Q502 D526 Y C502 222 C501 104 R516 MGR1 2W 50K R517 MGR1 2W 15MF 3 4 ZD401 1W 130V R501 5 6K R506 100KF Q501 A708 Y C506 3KV 471 C405 2KV 680 C505 2KV 680 D402 4KV VR501 50K C406 3KV 471 D501 1N4148 R510 47K R519 MGR1 2W 50K T501 KAB 006 1 4 2 5 7 6 1 2 U1 C KA324 1...

Страница 66: ...0 C307 3KV 471 D303 4KV C308 3KV 471 Q303 D526 Y R314 2 2KF VR302 5K C305 333 R311 100KF Q302 A708 Y R310 2 2K R308 33K Q301 A708 Y R307 33K R309 2 2K R306 26 1KF R304 200KF R305 5 1KF VR301 10K C304 500V 103 C303 333 D302 1N4148 D301 1N4148 R303 100KF R302 33K C302 102 R301 470K C301 222 C4 104 R3 1 2W 560 ZD1 5 6V C7 104 C101 35V 47uF R315 BR1 2W 30MJ C205 6KV 101 D304 4KV D204 6KV U1 B KA324 5 ...

Страница 67: ... R511 4 3K R512 330 R516 2 2K F R515 2 2K F C518 10V 470uF BD501 FL406 C506 222MAD C517 104 C519 104 R521 150 R520 47K OP501 ITR8406 S R519 500 5W TNR502 TVR 10D 561K LF502 APOLLO12 CN502 1 2 U501 BTA12 600 PC502 KMOC3063 L501 300uH C504 333 R501 1W 47 FUSIBLE R503 1 4W 100 R508 1W 180 FUSIBLE R513 1 2W 1 5K R504 68K R505 1W 47K F502 125V 3A C513 1uF R518 22 R514 22 C522 1KV 102 C514 1KV 102 N5 D5...

Страница 68: ...10V 1000uF R511 4 3K R512 330 R516 2 2K F R515 2 2K F C518 10V 470uF BD501 FL406 C506 332MAD C517 104 C519 104 R521 150 R520 47K OP501 ITR8406 S R519 500 5W LF502 APOLLO12 CN502 1 2 U501 BTA12 600 PC502 KMOC3063 L501 300uH C504 333 R501 1W 47 FUSIBLE R503 1 4W 22 R508 1W 180 FUSIBLE R513 1 2W 1 5K R504 22K R505 1W 100K F502 250V 2A C513 1uF R518 22 R514 22 C522 1KV 102 C514 1KV 102 N5 D503 SB1040F...

Страница 69: ...3 10 S C H E M ATIC DIAG R A M S Samsung Electronics Repair Manual 3 4 Panel Circuit Diagram This Document can not be used without Samsung s authorization ...

Страница 70: ... This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law ...

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