LASER PRINTER ML-2550 ML-2551N ML-2552W SERVICE LASER PRINTER Manual CONTENTS 1. Precautions 2. Reference Information 3. Specifications 4. Summary of product 5. Disassembly and Reassembly 6. Alignment and Adjustments 7. Troubleshooting 8. Exploded Views and Parts List 9. Block Diagram 10.
Copyright(c) 2003.
* This service manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applica ble international and/or domestic law. * This service manual is also provided on the web, the ITSELF system Samsung Electronics Co., Ltd. http://itself.sec.samsung.co.kr © Samsung Electronics Co.,Ltd. September 2003 Printed in Korea. VERSION NO. : 1.
Precautions 1 1. Precautions The cautions in the below are items needed to keep in mind when maintaining and servicing. Please read carefully and keep the contents in mind to prevent accidents while servicing and prevent any damages to the damage. 1.1 Warning for safety. (1) Request the service by qualified service person. The service for this machine must be performed by a service person who took the additional education of this field.
Precautions 1.2 Caution for safety 1.2.1 Precaution related noxious material There is a possibility to get harm from noxious material if you ignore the below information. (1) Do not touch the damaged LCD. This PRINTER has LCD in control panel. Noxious liquid to human body exists in the LCD. If it gets into your mouth, immediately see a doctor. If it gets into eyes or on skin, immediately wash it off for more than 15 minutes with flowing water and see a doctor.
Precautions 1.2.3 Precaution related handling the machine. If you ignore this information, you get hurt and machine could be damaged. (1) Do not install unit on uneven surfaces or slanted floors. Please confirm that unit is correctly balanced after installation. Machine may fall over when itis not balanced correctly. (2) Be careful not to insert a finger or hair in the rotating unit.
Precautions 1.3 ESD Precautions Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly called “Electrostatically Sensitive (ES) Devices”, or ESDs. Examples of typical ESDs are: integrated circuits, some field effect transistors, and semiconductor “chip” components. The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity.
Reference Information 2 2. Reference Information This chapter describes the reference information for applying this training manual, and it is consisted of the tool list, the abbreviation table, the outline of model, and so on. 2.1 Tool for Troubleshooting The following tools are recommended for safe and smooth troubleshooting described in this service manual. 1 DVM(Digital Volt Meter) Standard : Indicates more than 3 digits.
Reference Information 2.2 Acronyms and Abbreviations The table in the below explains abbreviations used in this service manual. The contents of this service manual are declared with abbreviations in many parts. Please refer to the table. 2-2 AC Alternating Current AP Access Point IPA Engineers.
Reference Information 2.3 Selecting a Location Select a level,stable place with adequate space for air circulation.Allow extra space for opening covers and trays. The area should be well-ventilated and away from direct sunlight or sources of heat,cold,and humidity.Do not set the printer close to the edge of your desk or table. CLEARANCE SPACE • • • • Front : 482.
Reference Information 2.4 The Sample Pattern for the Test The sample pattern shown in below is the standard pattern used in a factory. The contents of the life span and the printing speed are measured with the pattern shown in below. (The picture in the manual is 70% size of the actual A4 size.) 2.4.
Reference Information 2.4.
Reference Information 2.4.
Reference Information 2.6 Wireless LAN • This product uses a printing function with a wireless LAN, which is an option. - The wireless LAN function uses a frequency instead of connecting LAN cable to connect data to an access point for print. - For a wireless LAN connection, an AP is needed, It is possible to use wireless LAN onnection with wired LAN. Also, if AP is installed in an office or at home, the wireless LAN function can be simply used.
Reference Information 2-8 Service Manual Samsung Electronics
Specifications 3 3. Specifications Product specifications are subject to change without notice.See below for product specifications. 3.
Specifications 3.2 Controller Specification ITEM DESCRIPTION Processor(CPU) SPGPi + Power PC 266 MHz Memory FLASH ROM(PROGRAM +Postscript ) : 2MB flash * 2 RAM : 32MB (Expandable to 160MB) Option DIMM module : 16,32,64,128MB (SDRAM) 100Pin SDRAM DIMM (Samsung Printer Only) EEPROM(NVRAM) : 512byte Emulation PCL6 : win 3.1/95/98/ME/NT/2000/XP Postscript Level3 : win 95/98 PPD , win NT4.
Specifications 3.5 Environmental Condition ITEM OPERATING STORAGE Temperature 10~30 oC(50-90 oF) -20~40 oC (-4~104 oF) Humidity 20~80%RH 10~80%RH 3.6 Paper Handling Specifications >> Input Paper Size 1ST CASSETTE 2ND CASSETTE MP TRAY DUPLEX A4 PAPER 210 X 297 mm PAPER SIZE O O O O Letter 216 X 279(8.5 X 11") O O O O Folio(Legal13") 216 X 330(8.5 X 13") O O O O Legal(Legal14") 216 X 356(8.5 X14") O O O O Executive 184 X 267((7.25 X10.5") O Statement 140 X 216(5.
Specifications 3-4 Service Manual Samsung Electronics
Summary of product 4 4. Summary of Product This chapter describes the functions and operating principal of the main component. 4.1 Printer Components 4.1.
Summary of Product 4.1.
Summary of product 4.1.3 Control Panel The control panel on the top right side of your printer has the display and the nine buttons. Display : displays the printer status and job in progress. Buttons 4.1.3.1 Display Message Ready Offline Printing XXX * xxx is the current Description • The printer is on-line and ready to print. • If you press On-Line/Continue ,the printer switches to off-line. • The printer is off-line and cannot print. • If you press On-Line/Continue ,the printer switches to on-line.
Summary of Product 4.1.3.2 Buttons Button Description • Press to switch between on-line and off-line. • In menu mode,press to return to ready mode. You can check the printer status according to the button backlight. Green On The printer is on-line and can receive data from the computer. Blinking • When the backlight slowly blinks,the printer is receiving data from the computer. • When the backlight fast blinks,the printer is receiving and printing data.
Summary of product 4.1.3.2 Using Control Panel Menus A number of menus are available to make it easy for you to change printer settings. Accessing Control Panel Menus You can control your printer from the printer ’s control panel. You can also set the control panel menus while the printer is in use. 1. Press the Menu button until you see the desired menu on the bottom line of the display or Press the scroll button until the desired menu item displays on the bottom line. 2. Press the Enter button 3.
Summary of Product 4.1.3.3 Overview of Control Panel Menus The control panel menus are used to configure the printer for your environment. The control panel provides access to the following menus.
Summary of product 4.1.3.4 Special Features Your new printer is equipped with special features that improve the print quality,giving you a competitive edge. You can: Print with excellent quality and high speed • You can print at 1200 dots per inch (dpi).See page 5.25. • Your printer prints 21 pages-per-minute (Letter size), 20 pages-per-minute (A4 size).
Summary of Product Expand the printer capacity • This printer has 32 MB of memory which can be expanded to 160 MB. • Network interface enables network printing.You can add the optional network interface card to ML-2550. ML-2551N and ML-2552W comes with a built-in network interface,10/100 Base TX.ML2552W also has a wireless network interface. * PostScript 3 Emulation IPS-PRINT_Printer language Emulation © Copyright 1995-2003,Oak Technology,Inc.
Summary of product 4.
Summary of Product 4.2.1 Feeding It is consists of a basic cassette, an MP tray for supplying different types of media : envelope, label special paper, duplex unit, and parts related to paper transferring. 1) Separation method Separate it from the finger mounted to the cassette side guide and apply retard roller that uses a spring clutch. A feed roller uses an electronic clutch to control driving power. 2) Basic cassette It takes a center loading method and applies 'both side finger separating method.
Summary of product 4.2.2 Transfer It consists of a PTL (Pre-transfer Lamp) and a transfer roller. A PTL sheds light on an OPC drum, lowers an electric potential of an OPC drum's surface, and improves the efficiency of the transfer. A transfer roller transfers toner on an OPC drum to the paper. Life span: Print over 100,000 sheets (In 15~30(C) 4.2.3 Driver Ass'y By driving the motor, the system takes power.
Summary of Product 4.2.6 Toner Cartridge By using the electronic photo process, it creates a visual image. In the toner cartridge, the OPC unit and the toner cartridge unit are in a body.
Summary of product 4.3 Main Board Main controller part is organized with Asic (SPGPi) part, Memory part, and Engine interface part, and it is functions as a Bus control, I/O handling, Drivers, and PC interface by CPU. Memory access has program memory (supports 32bit operation) and working memory (supports 32bit operation).
Summary of Product 4.3.
Summary of product >> Timer 3 Independent Programmable Timer Watch Dog Timer for S/W Trap and Tone Generator for MFP Application >> RSH Fully H/W Rotator, Scaler and Halftoner Variable Image Scaler and Image Halftoning Unit for PCL6 >> Compression / Decompression 3 Different Kinds of Codec Algorithm jCodec : Powerful T.
Summary of Product 4.3.1.1 SPGPi Internal Block Diagram PowerPC IO (6 Ba n k ) PCI Briddge Flash Mem Font(4Bank) CPU I/F Clock Gen. ROM(4ch) Controller Primary System Bus Processor Bus I/O(6ch) Controller Reset Gen. RSH Timer jCodec IEEE1284 HCT ITC (5CH) ECI Secondary System Bus Tone Gen.
Summary of product 4.3.2. Memory part >> Flash Memory It stores the System Program. • Capacity: 2M Byte * 2 • Access Time : 70 nsec >>SDRAM It is used as Swath buffer, System working memory area, etc. when printing. • Capacity: 32M Byte (Basic), upto 160M Byte (Option) • DIMM : 16MB / 32MB / 64MB /128MB • Type : SDRAM 100MHz/133MHz , 16bit >>ROM DIMM It supports the option ROM DIMM 1 Slot for supporting the expanding Memory. • Capacity : 8MByte (Max) • Access Time : 70nsec 4.3.3.
Summary of Product 4.3.6. Sensor input circuit 4.3.6.1. Paper Empty Sensing The Paper empty sensor (Photo Interrupter) on the engine board informs the state of paper to LPEC1 whether it is empty or not by operation of the actuator. When cassette is empty, it detects the fact by reading the GPIO3_1 of LPEC1, and then displays the fact on the LCD panel. 4.3.6.2.
Summary of product 4.4 SMPS & HVPS board The SMPS and HVPS are in one united board. The SMPS part supplies the DC power to the system. It takes either 110V or 220V and outputs the +3.3V and +24V to supply the power to the main board. The HVPS part creates the high voltage of THV/MHV/Supply/Dev and supplies it to the toner cartridge part for making the best condition to display the image.
Summary of Product 4.4.1. HVPS(High Voltage Power Supply) 1) Transfer high voltage (THV (+)) - Function: It is a voltage that transfers toner on an OPC Drum to paper. - Output voltage: MAX +4.2 KV +/- 5% (Duty is changeable, Not loading) - 1.7KV +/- 15% (When cleaning, 200MOhm - It transfers toners with (+) polarity of transfer roller to an OPC Drum. - Error type: IF THV (+) is not outputted, it causes a low density due to toner on an OPC Drum if it is not transferred to paper.
Summary of product 4.4.2. SMPS(Switching Mode Power Supply) It is the power source for the whole system. It is an independent module so it is possible to use for common use. It is mounted at the bottom of the set. It consists of the SMPS part, which supplies the DC power for driving the system, and the AC heater control part, which supplies the power for fuser. SMPS has three outputting channels (3.3V, 5V and +24V).
Summary of Product >>Feature • Insulating resistance : over 50MΩ(at DC 500V) • Insulating revisiting pressure Must be no problem within 1min. (at 1500Vzc, 10mA) • Leaking voltage : under 3.
Summary of product 4.5 Engine F/W 4.5.1 Feeding If feeding from a cassette, the drive of the pickup roller is controlled by controlling the solenoid. The on/off of the solenoid is controlled by controlling the general output port or the external output port. If feeding from a manual feeder, decide to insert the paper according to the operation of the manual sensor, and by driving the main motor, insert the paper in front of the feed sensor. While paper moves, occurrence of jam is judged as below.
Summary of Product 4.5.4 Fusing The temperature change of the heat roller’s surface is changed to the resistance value through the thermistor. By converting the voltage value, which impressed to the resistance, to the digital value through the AD converter, the temperature is decided. The AC power is controlled by comparing the target temperature to the value from the thermistor.
Summary of product Service Manual Samsung Electronics 4-25
Disassembly and Reassembly 5 5. Disassembly and Reassembly 5.1 General Precautions on Disassembly When you disassemble and reassemble components, you must use extreme caution. The close proximity of cables to moving parts makes proper routing a must. If components are removed, any cables disturbed by the procedure must be restored as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected.
Disassembly and Reassembly 5.2 Transfer Roller 1. Open the Open Cover. 2. Hold the lever at both ends of the roller, then remove the roller. Transfer Roller Open Cover Holder * Do not grab the transfer roller shown in picture (A). It may cause a malfunction due to a foreign object. * Hold the both sides of the transfer roller shown in picture (B) when replacing it.
Disassembly and Reassembly 5.3 MPF Ass’y 1. Open the MPF Ass’y. 3. Remove the Tray Links from the MP Cover Tray Link MPF Ass’y 2. Remove two springs from the Knock Up Plate Ass’y. 4. Push the MP Cover and remove it as shown below. MP Cover NOTICE : Do not separate the spring from the MP Pick-up rack for convenience of assembling. Locate the hook section of the spring that is connected to the Knock Up Plate ass'y as shown in the picture below toward the outside for convenience of assembling. 5.
Disassembly and Reassembly 5.4 Retard Ass’y 1. Remove two screws. Then lift the Roller Ass’y, as shown below. Notice: When you reassemble the Retard Roller ass’y make sure that the let and of the Retard roller fits into the Retard shaft.
Disassembly and Reassembly 5.5 Cover-Right 1. Pull the Cassette out of the printer. Cassette 2. Remove two screws and take out the Right Side.
Disassembly and Reassembly 5.6 Main PBA 1. Before you remove the Main PBA you should remove: - Cover-Right (Refer to the 5.5) 4. Remove two screws and take out the Dummy Bracket. 2. Unplug all the connectors, as shown below. Dummy Bracket 3. The connectors are located as shown below. 5. Remove six screws and take out the Main PBA.
Disassembly and Reassembly 5.7 Main Drive Ass’y 1. Before you remove the Right Side Ass'y, you should remove: - Cover-Right (Refer to the 5.5) 5. Remove six screws and take out the Main Drive Ass’y. 2. Unplug the two Connectors after you remove the two screws and take out the Cover Joint PBA. Main Drive Ass’y Cover Joint PBA 3. Unplug the two connectors from the Main PBA and the Connector PBA. 6.
Disassembly and Reassembly 5.8 Connector PBA 1. Before you remove the Connector PBA, you should remove: - Cover-Right (Refer to the 5.5) 2. Unplug all of the connectors from the Connector PBA and take it out. 3. The connectors are located as shown below.
Disassembly and Reassembly 5.9 Solenoid 1. Before you remove the Connector PBA, you should remove: - Cover-Right (Refer to the 5.5) - Main Drive Ass’y (Refer to the 5.7) 4. Remove two screws and take out the Main Solenoid. 2. Unplug the MP Solenoid Harness and the Main Solenoid Harness from the Connector PBA. Main Solenoid 3. Remove two screws and take out the MP Solenoid.
Disassembly and Reassembly 5.10 Cover-Left 1. Pull the Cassette out of the printer. Cassette 3. Remove two screws and take out the Cover-Left Cover-Left 2. Remove two screws and take out the Right Side.
Disassembly and Reassembly 5.11 DC Fan 1. Before you remove the DC Fan, you should remove: - Cover-Right (Refer to the 5.5) - Cover-Left (Refer to the 5.10) 3. Remove one screw for taking out the Stopper, and then take out the DC Fan. DC Fan 2. Unplug the two Connectors from the Connector PBA. Stopper 4. Remove two screw for taking out the Stoppers, and then take out the Fan.
Disassembly and Reassembly 5.12 Rear Cover 1. Open the Rear Cover, and then take out the Stopper. 2. Remove the Rear Cover in the direction of arrow.
Disassembly and Reassembly 5.13 Top Cover 1. Before you remove the Top Cover, you should remove: - Cover-Right (Refer to the 5.5) - Cover-Left (Refer to the 5.10) 4. Unlatch both ends of the Top Cover. 2. Open the MPF Ass’y, the Rear Cover, the Open Cover. 5.Unlatch the hook and take out the Top Cover. Top Cover 3. Unplug the two Connectors after you remove the three screws from the Main PBA. Key Panel 6. Remove 7 screws, and then take out the LCD Panel and the Key Panel.
Disassembly and Reassembly 5.14 Open Cover 1. Before you remove the Open Cover, you should remove: - Top Cover (Refer to the 5.13) 4. Release the lock as shown below and lift up the Sensor Cap. 2. Remove two screws and take out the Stopper. Stopper Micro Switch PBA Sensor Cap 3. Take out the Open Cover as shown below. Open Cover 5.15 Inner Cover 1. Before you remove the Inner Cover, you should remove: - MPF Ass’y (Refer to the 5.3) - Top Cover (Refer to the 5.13) 2.
Disassembly and Reassembly 5.16 Fuser Ass’y 1. Before you remove the Fuser Ass’y, you should remove: - Rear Cover (Refer to the 5.12) 4. Remove one screw, and then take out the Thermistor from the Fuser Ass’y. Thermistor 2. Remove four screws and take out the Fuser Ass’y. Fuser Ass’y 3. Remove two screws and take the Thermostat out of the Fuser Ass’y. 5. Remove two screws and take the Halogen Lamp out of the Heat Roller.
Disassembly and Reassembly 6. Remove three screws and take out the Gear bracket. 8. Take out the Heat Roller as shown below. Heat Roller Gear Bracket Bushing Fuser Gear 7. Remove two screws and divide the Fuser into two parts. 9. Take out the Pressure Roller as shown below.
Disassembly and Reassembly 5.17 Exit Drive 1. Before you remove the Exit Driver, you should remove: - Top Cover (Refer to the 5.13) 3. Remove three screws and take out the Exit Driver Ass’y. 2. Unplug the Exit Driver Harness from the Main PBA. 4.Remove two screws and take out the Exit Motor.
Disassembly and Reassembly 5.18 Exit Roller 1. Before you remove the Exit Roller, you should remove: - Top Cover (Refer to the 5.13) 4 Take out the Exit Gear as shown below. 2. Take the Actuator out. Bearing Actuator Exit Gear 5. Take out the Duplex Exit Roller as same method. 3. Remove the Exit Roller and Bearing as shown below.
Disassembly and Reassembly 5.19 LSU 1. Before you remove the LSU, you should remove: - Cover-Right (Refer to the 5.5) - Cover-Left (Refer to the 5.10) - Top Cover (Refer to the 5.5) 4. Remove three screws and take out the LSU. LSU 2. Release the lock as shown below. 3. Remove the Exit Roller Rack in the direction of arrow.
Disassembly and Reassembly 5.20 Toner Sensor Board 1. Before you remove the Toner Sensor Board, you should remove: - Top Cover (Refer to the 5.13) - LSU (Refer to the 5.19) 4. Remove 3 screws and take out the LSU Lower Cover. LSU Lower Cover 2. Unplug 5 Harness from the Toner Sensor PBA. 3. Take out the Toner Sensor PBA.
Disassembly and Reassembly 5.21 REGI Ass’y 1. Before you remove the REGI Ass’y, you should remove: - Top Cover (Refer to the 5.13) 5. Remove one screw and take out the Regi. Sensor. REGI Sensor 2. Unplug the Harness, Remove 4 screws. Sensor Holder 6. Unplug the Harness, remove one screw and take out the PTL PBA. 3. Release the lock as shown below and lift up the Gear Cap. PTL Upper PTL PBA Gear Cap 4. Take out the Regi. Ass’y as shown below.
Disassembly and Reassembly 5.22 MP Pick-up Ass’y 1. Before you remove the MP Pick-up Ass’y, you should remove: - MPF Ass’y (Refer to the 5.3) - Main Drive Ass’y (Refer to the 5.7) - Top Cover (Refer to the 5.13) - Inner Cover (Refer to the 5.15) 4. Pull and remove the lock equipment, then rotate the Bearing as shown below. Bearing 2. First of all remove two screws. Lift up the MP Pick-up Shaft for taking out the MP Pick-up Rack. Rack MP Pick Up Rack 5.
Disassembly and Reassembly 6. First lift the left side of the Shaft and then remove the Shaft. 7. Push the idles toward the ends of shaft then take out the Housing as shown below.
Disassembly and Reassembly 5.23 Pick-up Ass’y 1. Before you remove the Pick-up Unit, you should remove: - Cover-Right (Refer to the 5.5) - Main Drive Ass’y (Refer to the 5.7) 4. Remove two springs from the Pick-up Ass’y. 2. Remove E-Ring and take The Gear-Pick-up Cam out. Take the Gear-Regi out. Gear-Pick-up Cam 5. Lift Guide-Front-Dup out in the direction of arrow as shown below. Gear-Regi Tweezer 3. Remove four screws. Then lift the Bottom Cross Bar, as shown below.
Disassembly and Reassembly 6. Lift Unit-Guide Front out in the direction of arrow as shown below. Unit-Guide Front 8. Remove four screws and lift the Pick-up Unit out in the direction of the arrow as shown below. Pick Up Unit 9. Remove the Feed Ass’y as shown below. 7. Remove the locking equipment rotate the Feed Roller Shaft’s in the direction of the arrow and slide the bearing off as shown below. Pick Up Roller Feed Roller 10. Remove the Pick-up Ass’y as shown below.
Disassembly and Reassembly 5.24 Engine Shield 1. Remove the Guide-Front-Dup.( Refer to the 5.23.5) 4. Unplug all of the connectors from the Engine PBA. Then take out the Engine Shield Ass’y. 2. Remove the Actuator as shown below. Actuator 1 2 Power Shield Notice: Be careful not to get burnt when separating an Engine PBA. 3. Remove nine screws and slightly lift the Engine Shield, as shown below.
Disassembly and Reassembly 5.25 Engine PBA 1. Before you remove the Engine Shield, you should remove: - Engine Shield (Refer to the 5.25) 2. Remove four screws and take the Engine Board out of the Duplex Unit. Engine PBA 5.26 Holder Pad Ass’y 1. Before you remove the Holder Pad Ass'y, you should remove: - Unit-Guide Front(Refer to the 5.23.6) 3. Remove the photo interrupter and the MP Actuator as shown below. 2. Unplug the connector and remove the two screws, as shown below.
ALIGNMENT & A D J U S T M E N T S 6 6. Alignment and Adjustments This chapter describes the main functions for service, such as the product maintenance method, the test output related to maintenance and repair, DCU using method, Jam removing method, and so on. It includes the contents of manual. 6.1 How to use EDC (Engine Diagnostic Control) Mode 6.1.
ALIGNMENT & A D J U S T M E N T S 6.1.
ALIGNMENT & A D J U S T M E N T S 6.1.2.1 Interface Test (Main controller and Tray3 controller) - This Function is used to check the communication state between the main controller and the tray 3 controller. 1. Press the "Menu Key", until finding "Interface Test" message on the panel. 2. Press the "Select Key", when it's found. Sub Menu Tray2 Interface Description After it is on the test, confirm a message on the panel.
ALIGNMENT & A D J U S T M E N T S 6.1.2.3 Motor & Fan Test - These Functions are used to check the present state (normal or not) of the motors and fan. 1. Press the "Menu Key", until finding "Motor/Fan Test" is displayed on the panel. 2. Press the "Select Key", when it's found. 3. Press the "Arrow keys" (< / >), until finding the desired function (Refer to the table below). 4. Press the "Select Key", when it's found. 5. Press the "Select Key" for execution or the "Cancel key" to stop.
ALIGNMENT & A D J U S T M E N T S 6.1.2.4 Solenoid & Clutch Test - These Functions are used to check the present state (normal or not) of the solenoids and clutches. 1. Press the "Menu Key", until finding "Solenoid Test" is displayed on the panel. 2. Press the "Select Key", when it's found. 3. Press the "Arrow keys" (< / >), until finding the desired function. (Refer to the table below) 4. Press the "Cancel Key", when it's found. 5.
ALIGNMENT & A D J U S T M E N T S 6.1.2.5 Sensor Test - These Functions are considered to check the present state (normal or not) of the Sensors. 1. Press the "Menu Key", until finding "Sensors Test" message on the panel. 2. Press the "Select Key", when it's found. 3. Press the "Arrow keys" (< / >), until finding a suitable function. 4. Press the "Select Key", when it's found. 3. Touch a sensor you would like to test. 4. Confirm a message on the LCD window for the state of it.
ALIGNMENT & A D J U S T M E N T S 6.1.2.6 HVPS Test Item : High Voltage Power Supply - These Functions are used to check whether the control for HVPS is normal or not. 1. Press the "Menu Key", until finding "Developing Test" is displayed on the panel. 2. Press the "Select Key", when it's found. 3. Press the "Arrow keys" (< / >), until finding a suitable function (Refer to the table below). 4. Press the "Select Key", when it's found. 5. Press the "Select Key" for execution or the "Cancel key" for stop.
ALIGNMENT & A D J U S T M E N T S 6.
ALIGNMENT & A D J U S T M E N T S • Simplex 1) A paper is fed from a cassette or MPF by a printing order. 2) The fed paper passes a paper feeding sensor. - If the sensor does not operate after feeding the paper, the Jam0 occurs. 3) The paper passes a paper exit sensor, and it comes out from a machine. - If the tailing edge of the paper does not come out from a machine after the leading edge of the paper passes the sensor, then certain time later, a Jam2 occurs.
ALIGNMENT & A D J U S T M E N T S 6.2.1 Clearing Paper Jams When a paper jam occurs,the display on the control panel shows the message indicating the corresponding location of the paper jam. 6.2.1.1 Tips for Avoiding Paper Jams By selecting the correct paper types, most paper jams can be avoided. If a paper jam occurs, follow the steps outlined in • Ensure that the adjustable guides are positioned correctly. • Do not overload the tray.
ALIGNMENT & A D J U S T M E N T S • In the Optional Tray2 1. Pull the optional Tray2 out of the printer. 3. If you cannot find the jammed paper in the Tray2,pull the Tray1 half way out of the printer,and remove the paper. 2. If you see the jammed paper,remove the paper from the tray. 4. Slide the trays back into the printer. Open and close the top cover.Printing can be resumed. • In the Multi-Purpose Tray 1. Open the Multi-Purpose Tray. 3. Open and close the top cover.Printing can be resumed. 2.
ALIGNMENT & A D J U S T M E N T S 6.2.1.3 Around the Toner Cartridge (Jam1) 1. Open and close the top cover,and the jammed paper should exit the printer. 4. Gently pull the jammed paper towards you to remove it from the printer. If not,continue to Step 2. 2. Open the top cover and remove the toner cartridge. If the jammed paper is not visible or there is resistance when you pull the paper,go to “In the Paper Exit Area ”.
ALIGNMENT & A D J U S T M E N T S 6.2.1.4 In the Paper Exit Area (Jam 2) 1. If a long portion of the paper is visible,pull it straight out. If not,continue to Step 2. 3. Loosen the paper if it is caught in the feed rollers. Then gently pull the paper out. 2. Open the rear output tray. 4. Close the rear output tray. 5 Open and close the top cover.Printing can be resumed.
ALIGNMENT & A D J U S T M E N T S 6.2.1.5 In the Duplex Area • Duplex Jam 1 1. Open the rear output tray. 3. Close the rear output cover. 2. Remove the jammed paper. 4. Open and close the top cover.Printing can be resumed. • Duplex Jam 2 1. Pull the paper tray out of the printer. 3. Remove the jammed paper. 2. Pull down the metal plate inside of the printer. 4. Slide the tray back into the printer. CAUTION : Pulling the plate could cause an injury.Use the lever on the left. 6-14 5.
ALIGNMENT & A D J U S T M E N T S 6.3 Sample Pattern This product has the several sample patterns for maintenance. With the sample patterns, check the existence of the abnormality. The patterns help to regularly maintain the product. 6.3.1 Printing a Demo Page Print a demo page to make sure that the printer is operating correctly. 1. Press the Menu button on the control panel until you see “Information ” on the bottom line of the display.. 2. Press the Enter button to access the Menu. 3.
ALIGNMENT & A D J U S T M E N T S 6.3.3 Checking the toner cartridge count Information about the 'toner cartridge count' can be checked by printing the Configuration Sheet. 6.3.3.1 Remaining Toner: xx% - Contents: Shows the remaining amount of toner. - Description: It starts with 100%, and it reduces every 5% unit until it becomes 0%. (A message "Low Toner" is displayed in a LCD when it reaches 10%.
ALIGNMENT & A D J U S T M E N T S 6.3.3.5 A checking method of a toner remaining amount (1) Check a configuration sheet. (2) Check by using a key of a set. (Setup-maintenance-remain toner) (3) Check with a network: Check on a Webthru (Setup Menu-remaining toner) Caution (1) Please be careful not to damage a toner sensor part when assembling and disassembling a toner cartridge. (2) Please be careful not to stain anything to jumper (4), which is shown in the picture.
ALIGNMENT & A D J U S T M E N T S 6.4 Consumables and Replacement Parts The cycle period outlined below is a general guideline for maintenance. The example list is for an average usage of 50 transmitted and received documents per day. Environmental conditions and actual use will vary these factors. The cycle period given below is for reference only.
ALIGNMENT & A D J U S T M E N T S 6.5 Periodic Defective Image If the delinquent image regularly occurs in the printed-paper, it is due to delinquent or damaged roller. Refer to the table in below and check the condition of the roller.
ALIGNMENT & A D J U S T M E N T S 6-20 Service Manual Samsung Electronics
Troubleshooting 7 7. Troubleshooting 7.1 The cause and solution of Bad image 7.1.1 Vertical Black Line and Band • Description 1. Straight thin black vertical line occurs in the printing. 2. Dark black vertical band occur in the printing. Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1. Damaged develop roller in the Toner cartridge. Deformed Doctor-blade or cleaning-blade. 1.
Troubleshooting 7.1.3 Horizontal Black Band • Description Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer 1. Dark or blurry horizontal stripes occur in the printing periodically. (They may not occur periodically.) Check and Cause Solution 1. Bad contacts of the voltage terminals to toner cartridge. 1. Clean each voltage terminal of the Charge, Supply, Develop and Transfer roller. (remove the toner particles and paper particles) 2.
Troubleshooting 7.1.5 Light Image • Description The printed image is light, with no ghost. Check and Cause Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer 1. Develop roller is stained when the toner of toner cartridge is almost consumed. Solution 1. Check if the Toner Save mode is off. Check if the density is light. 2. Ambient temperature is below than 10°C. 2. No 1 : Replace the toner cartridge and try to print out. 3.
Troubleshooting 7.1.7 Uneven Density • Description Print density is uneven between left and right. Check and Cause Solution 1. The pressure force on the left and right springs of the transfer roller is not even, the springs are damaged, the transfer roller is improperly installed, or the transfer roller bushing or holder is damaged. 1. Replace both the left and right Spring Holder. 2. The life of the Toner cartridge has expired. 2. Occur in the toner cartridge gently shake the toner cartridge. 3.
Troubleshooting 7.1.9 Ghost (1) • Description 95 mm Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Ghost occurs at 95 mm intervals of the OPC drum in the whole printing. Check and Cause Solution 1. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the electrode of the Toner cartridge. 1. Clean the terminals when contaminated by toner particles. 2.
Troubleshooting 7.1.11 Ghost (3) : Fuser • Description Check and Cause 82 or 92 mm Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Ghost occurs at 82 or 92 mm intervals. The temperature of the fuser is maintained high. Solution 1. Disassemble the fuser and remove the contaminated toner particles on the roller and clean the foreign matter between Thermistor and Heat roller. (Caution: can be deformed) 7.1.
Troubleshooting 7.1.13 Satins on Back of Page • Description Check and Cause Solution 1. 57mm : Transfer roller is contaminated. 1. Perform the OPC Cleaning Mode Print 2 or 3 times. Run Self-Test to remove the contamination of the transfer roller. 2. 92mm : Pressure roller is contaminated. 2. Replace the transfer roller if contaminated severely.
Troubleshooting 7.2 The cause and solution of the bad discharge 7.2.1 Wrong Print Position • Description Printing begins at wrong position on the paper. Check and Cause Solution Wrong sense time caused by defective feed sensor actuator. Replace the defective actuator 7.2.2 JAM 0 • Description 1. Paper is not exited from the cassette. 2. Jam-0 occurs if the paper feeds into the printer. Check and Cause Solution 1. Check the Solenoid by using EDC Mode. 1. Replace the solenoid. 2.
Troubleshooting 7.2.3 JAM 1 • Description 1. Recording paper is jammed in front of or inside the fuser. 2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed. Check and Cause 1. If the recording paper is jammed in front of or inside the fuser. Solution 1. Replace the SMPS or Exit-Sensor. 2. Replace the Main PBA. 2.
Troubleshooting 7.2.5 JAM Duplex 1 • Description A message 'Jam duplex 1' is displayed in a LCD window. Check and Cause 1. It is a case when a paper cannot operate a duplex sensor. 2. It is a case when a paper cannot reach to a duplex sensor due to a paper jam on a duplex path. Solution 1. Replace a SMPS or main PBA 2. A case that a paper jam occurs on (A) after it is reversed: replace a 2nd exit roller after checking its operation. 3.
Troubleshooting 7.2.7 Multi-Feeding • Description Multiple sheets of paper are fed at once. Check and Cause 1. Check the Guide side L/R or Guide Rear in the Cassette, if the position is correct. Solution 1. Replace the solenoid if necessary. 2. Replace the Main PBA. 2. Solenoid malfunction(the solenoid does not work properly): Perform EDC Mode. 3. Pad-Friction is contaminated with foreign matter.(oil...) 3. Clean the pad friction with soft cloth dampened with IPA(Isopropyl Alcohol). 4.
Troubleshooting 7.2.9 Paper rolled on the OPC Drum • Description Paper is rolled up in the OPC. Check and Cause Solution 1. Paper is too much thin. 1. Recommend to use normal paper. 2. The face of paper is curled. 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 tissue.
Troubleshooting 7.3 The cause and solution of the malfunction 7.3.1 Fuser Error • Description A message "Open fuser/Over heat/Low heat' is displayed in a LCD panel. Check and Cause Solution 1. Check whether a thermostat, AC wire, and heat lamp are open or not. 1. Replace the fuser if a thermostat is open. 2. Check whether a thermistor is open or not. 2. Replace the fuser if a thermistor sensor is located deep inside of a sponge. 3. Heat lamp ON/OFF test 3.
Troubleshooting 7.3.3 Not function of the gear of the fuser due to melting away • Description The motor breaks away from its place due to gear melting away. Check and Cause 1. Check the Heat Lamp. Solution 1. Replace the Fuser. 2. Replace the Main PBA. 2. Replace the SMPS. 7.3.4 Paper Empty • Description The paper lamp on the operator panel is on even when paper is loaded in the cassette. Check and Cause Solution 1. Bending or deformation of the actuator of the paper sensor. 1.
Troubleshooting 7.3.5 Paper Empty without indication • Description The paper lamp on the operator panel does not come on when the paper cassette is empty. Check and Cause Solution 1. Bending or deformation of the actuator of the paper sensor. 1. Replace the defective actuator. 2. The function of the engine board is defective 2. Replace the engine board. 7.3.6 Cover Open • Description The ERROR lamp is on even when the print cover is closed. Check and Cause Solution 1.
Troubleshooting 7.3.7 No error message when the cover is open • Description The ERROR message does not come on even when the printer cover is open Check and Cause 1. Check the connector and circuit of the cover switch department in the Main Control board. Perform EDC mode Solution 1. Check the insertion of the Cover Open S/W Connect. 2. Replace the Main Control board or Cover Open S/W.
Troubleshooting 7.3.8 Defective motor operation • Description Main motor is not driving when printing, and paper does not feed into the printer, resulting 'Jam 0'. Check and Cause Solution 1. The Motor harness or Motor PCB may be defective. 1. Check the motor harness, replace it, if defective. 2. Check the motor operation in the EDC Mode. 2. Replace the Main PBA. 7.3.9 No Power • Description When system power is turned on, all lamps on the operator panel do not come on.
Troubleshooting 7.3.10 Vertical Line Getting Curved • Description When printing, vertical line gets curved. Check and Cause 1. If the supply of +24v is unstable in the Main Control board linking with LSU, check drive by EDC Mode: LSU Check. Solution 1. Replace LSU. 2. Replace theToner Joint PBA. 2. Chect the Deve PBA in the Toner Cartridge. 2. Replace the MainPBA.
Troubleshooting 7.4 Toner Cartridge Service It is not guaranteed for the default caused by using other toner cartridge other than the cartridge supplied by the Samsung Electronic or caused by non-licensed refill production. 7.4.1 Precautions on Safe-keeping of Toner Cartridge Excessive exposure to direct light more than a few minutes may cause damage to the cartridge. 7.4.
Troubleshooting 7.4.4 Error message (LCD window) related in a toner sensor It explains a message related in toner sensor in a LCD. 7.4.4.1 Invalid Toner - Contents: It is displayed when a supplier is different between a toner cartridge and a set. If this message is shown up, a printing process cannot operate. - Solution: Attach a suitable toner cartridge (the same supplier's) to a set. (A unique key has been applied.) 7.4.4.
Troubleshooting 7.4.5 Signs and Measures at Poor toner cartridge Fault Light image and partially blank image (The life is ended.) Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Signs Cause & Check • The printed image is light or unclean and untidy. 1. If the image is light or unclean and untidy printed image Shake the toner cartridge and then recheck. • Some part of the (1)NG: Check the weight of the image is not printtoner cartridge ed.
Troubleshooting Fault White Black spot Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Signs Cause & Check 1. If light or dark periodical black dots occur, this is because the toner cartridge rollers are contaminated with foreign substance or paper particles. • White spots occur (1)38mm interval : Charged in the image periodroller ically. (2)95mm interval : OPC cycle • Light or dark black dots on the image occur periodically. 2.
Troubleshooting Fault Ghost & Image Contamination Signs Cause & Check Solution • The printed image is too light or dark, or partially contaminated black. 1. The printed image is too light or dark, or partially contaminated black. (1)Check whether foreign substance or toner are stuck to the terminal(point of contact) of the toner cartridge. (2)Check whether the terminal assembly is normal. 1.
Troubleshooting 7.5 The cause and solutions of bad environment of the software 7.5.1 The printer is not working (1) • Description While Power turned on, the printer is not working in the printing mode. Check and Cause Solution 1. Run Self-Test Mode: Turn the power on while pressing the test printing button for 2 or 3 seconds before printing works. 1.Check the power of the printer and perform the SelfTest. If the test printing works, that means no problems in the printer itself.
Troubleshooting 7.5.2 The printer is not working (2) • Description After receiving the printing order, no response at all or the low speed of printing occurs due to wrong setup of the environment rather than malfunction of the printer itself. Check and Cause Solution 1. Secure more space of the hard disk. 1. Not working with the message 'insufficient printer memory' means hard disk space problem rather than the RAM problem. In this case, provide more space for the hard disk.
Troubleshooting 7.5.3 Abnormal Printing • Description The printing is not working properly even when the cable has no problem. (even after the cable is replaced) If the printer won't work at all or the strange fonts are repeated, the printer driver may be defective or wrong setup in the CMOS Setup. Check and Cause Solution 1. Set up the parallel port in the CMOS SETUP. 1. Select SPP(Normal) or ECP LPT Port the among ECP, EPP or SPP in the CMOS Setup. 2. Printer Driver Error. 2.
Troubleshooting 7.5.4 SPOOL Error • Description To spool which stands for "simultaneous peripheral operations online" a computer document or task list (or "job") is to read it in and store it, usually on a hard disk or larger storage medium so that it can be printed or otherwise processed at a more convenient time (for example, when a printer is finished printing its current document). Check and Cause Solution 1. Insufficient space of the hard disk in the directory assigned for the basic spool. 1.
Troubleshooting 7-28 Service Manual Samsung Electronics
EXPLODED VIEW & PARTS LIST 8 8. Exploded Views and Parts List 8.1 Main Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-2) 8.2 Base-Houshing Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-6) 8.3 Frame Assembly (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-7) Frame Assembly (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-8) 8.
EXPLODED VIEW & PARTS LIST 8.
EXPLODED VIEW & PARTS LIST Main Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST Main Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST 8.
EXPLODED VIEW & PARTS LIST Base-Houshing Assembly Parts List SA : Service Available O : Service available X : Service not available No. 0 1 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 1-14 1-15 1-16 1-17 1-18 2 2-1 2-2 3 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 4 5 6 S S 8-6 Description SEC.
Samsung Electronics 7-1 7-2 7-3 7-8 0 7-7 7-6 7-5 7-4 7 2-3 15 14 36 2-2 2-4 2-2 36-3 36-1 66 2-4-3 2 15 2-4-2 60 2-4 -1 1 16 16 36-2 2-1 6 17 37 34 20 10 9 8 19 6 19-2 13 19-4 19-1 19-3 21 19 73 27 26 30 13 29 20 22 3 28 23 4 24 12 11 5 31 32 73 74 EXPLODED VIEW & PARTS LIST 8.
8-8 67-13 67-7 67-9 67-7 67-5 67-6 67-14 67-4 67-8 67-14 67-1 67-3 67-10 67-5 67-3 67-12 67-2 67-9 67 67-13 67-11 0 39 39 68-4 68-7 61 38 43 38 63 68-10 68-13 68-1 68-2 68-12 52 44 68-5 68-11 68-3 68-6 68-8 68-S 68-9 68 66 63 64 38 50 59 60 69 41 70 57 42 56 65 58 56 45 46 47 53 49 48 62 51 50 72 71 40 EXPLODED VIEW & PARTS LIST Frame Assembly (2) Service Manual Samsung Electronics
EXPLODED VIEW & PARTS LIST Frame Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST Frame Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST Frame Assembly Parts List SA : Service Available O : Service available X : Service not available No. Description SEC.
EXPLODED VIEW & PARTS LIST 8.
EXPLODED VIEW & PARTS LIST Fuser Unit Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST Fuser Unit Assembly Parts List SA : Service Available O : Service available X : Service not available No. 4 4-1 4-2 4-3 4-4 5 6 7 8 9 10 8-14 Description MEA UNIT-BRK GEAR FU RING-E BRACKET-P-FUSER GEAR-IDLE 33 GEAR-IDLE 23 LAMP-HALOGEN LAMP-HALOGEN SCREW-ASSY MACH SCREW-TAPTITE NUT-HEXAGON LABEL(R)-LV FUSER LABEL(R)-HV FUSER LABEL(R)-FUSER TOUCH SEC.
EXPLODED VIEW & PARTS LIST 8.5 Main Driver Assembly 11 16 10 12 13 9 14 8 7 6 0 5 15 2 17 1 4 3 Harness-Main Motor Main Driver Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST 8.6 Exit Driver Assembly 6 0 4 9 8 6 5 12 11 10 4 3 1 9 2 7 Harness-Motor Exit Drive Assembly Parts List SA : Service Available O : Service available X : Service not available No. 0 1 2 3 4 5 6 7 8 9 10 11 12 S 8-16 Description ELA UNIT-MOTOR EXIT CARDINAL MOTOR-STEP-CARDINAL 2 PMO-IMPELLER_DRV BRACKET-P-EXIT GEAR-DP,IDLE GEAR-RDCN EXIT RING-E GEAR-FUSER IDLE GEAR-EXIT/U,ID RING-E GEAR-RDCN FUSER IN GEAR-HUB CLUTCH GEAR-RDCN FUSER OUT SCREW-MACHINE SEC.
EXPLODED VIEW & PARTS LIST 8.7 Regi Assembly 0 15 10 8 6 9 20 12 12 18 4 17 7 5 1 2 3 21 4 16 18 12 12 14 11 13 Regi Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST 8.
EXPLODED VIEW & PARTS LIST SMPS Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST 8.
EXPLODED VIEW & PARTS LIST Cassette Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST 8.
EXPLODED VIEW & PARTS LIST SCF Assembly Parts List SA : Service Available O : Service available X : Service not available No.
EXPLODED VIEW & PARTS LIST SCF Assembly Parts List SA : Service Available O : Service available X : Service not available No. 35 35-1 35-2 35-3 35-4 36 37 38 101 102 103 104 105 8-24 Description ELA HOU-CST SENSOR HAWK16 IPR-PLATE SENSOR IPR-BRACKET SENSOR PBA SUB-CASSETTE SCREW-TAPTITE CBF HARNESS-SCF PAPER SIZE CBF HARNESS-MOTOR GUIDE-M-PAPER PATH SCREW-TAPTITE SCREW-TAPTITE SCREW-MACHINE RING-E RING-E SEC.
Block Diagram 9 9. Block Diagram DATA(0:31) ROM ADDR(2:23) Prog. ROM 2M*2 Font ROM 1M*2 Voltage (Built in Board) Regulator ROMCS(0:1) nRD nWR Blank DIMM nReset for ROMCS(2:3) Options Memory Data Bus SDRAM DRAMD(0:31) SDRAM 16MB*2 Memory Address Bus Working Mem.
Block Diagram 9-2 Service Manual Samsung Electronics
Connection Diagram 10 10. Connection Diagram 1 2 3 3.3V BIN_FULL GND 1 2 THERM1 THERM2 1 2 3 4 GND P_REGI P_EMPTY 3.3V Paper Size PBA 1 2 3 4 P_SIZE1 P_SIZE2 P_SIZE3 GND Exit_Sensor 1 2 3 3.
Connection Diagram 10-2 Service Manual Samsung Electronics
Main Circuit Diagram(1/9) Schematic Diagrams This Document can not be used without Samsung’s authorization.
Main Circuit Diagram(2/9) 11-2 This Document can not be used without Samsung’s authorization.
Main Circuit Diagram(3/9) Schematic Diagrams This Document can not be used without Samsung’s authorization.
Main Circuit Diagram(4/9) 11-4 This Document can not be used without Samsung’s authorization.
Main Circuit Diagram(5/9) Schematic Diagrams This Document can not be used without Samsung’s authorization.
Main Circuit Diagram(6/9) 11-6 This Document can not be used without Samsung’s authorization.
Main Circuit Diagram(7/90) Schematic Diagrams This Document can not be used without Samsung’s authorization.
Main Circuit Diagram(8/9) 11-8 This Document can not be used without Samsung’s authorization.
Main Circuit Diagram(9/9) Schematic Diagrams This Document can not be used without Samsung’s authorization.
11-2 HVPS Circuit Diagram(1/2) Schematic Diagrams 24V1 5V1 C404 472 ZD401 2.7V R403 1.5M 5V1 MHV-sen MHV PWM CN1-#6 MHV 13 5 6 R401 47K + - D402 1N4148 C403 331 >> MHV 5 6 1 7 R414 1/2W60MF C409 3KV471 Q404 C2316 C458 MY2A473 Q403 C945C-Y ZD402 2.7VB D403 D1NL20U R413 30KF IC104/D + 12 - R460 RD1/8W1.5K MHV READ CN1-#10 13 C457 CE-103 KA324 C456 MY2A473 ZD404 3.3B C460 47uF D455 1N4148 14 MHV_READ D456 1N4148 ZD501 2.
HVPS Circuit Diagram(220V) Schematic Diagrams 5V1 24V1 5V1 C207 CE-103 R209 100K T201 R203 100 4 Q201 A708-Y THV THV PWM CN1-#16 R202 430 D201 1N4148 >> 3 + 2 47K - C202 102 C203 681 R206 16.2KF 6 1 7 D204 6KV R207 330KF C205 MY-2A471 D203 D1NL20U D202 D1NL20U C213 2KV221 R211 1/4W4.
11-3 SMPS Circuit Diagram(110V) Schematic Diagrams AR2 F1 125V8A C1 474 TNR1 TH2 F2 125V5A GAP1 C7 10D-15 R4 3W47KJ 630V103K TH1 IC4_IN C3 LF1 CN1 474 C14 LF2 C6 200V560uF 2 O +3.3V1.
SMPS Circuit Diagram(220V) Schematic Diagrams AR2 F1 250V5A C1 474 TNR1 TH2 F2 250V3.15A GAP1 C7 10D-13 R4 3W47KJ 630V103K TH1 IC4_IN LF1 CN1 474 C14 LF2 C6 400V270uF I 2 O +3.3V1.
SMPS Circuit Diagram(220V for China) AR2 F1 250V5A C1 474 TNR1 Schematic Diagrams TH2 F2 250V3.15A GAP1 C7 10D-13 R4 3W47KJ 630V103K TH1 IC4_IN LF1 474 C14 LF2 C4 C6 450V270uF I 2 O +3.3V1.
11-3 Network Card Circuit Diagram(1/5) This Document can not be used without Samsung’s authorization.
Network Card Circuit Diagram(2/5) 11-16 This Document can not be used without Samsung’s authorization.
Network Card Circuit Diagram(3/5) Schematic Diagrams ML-2152W ONLY Addr17 Addr18 Addr19 . Addr20 Addr21 Addr22 0 PLL ON 1 PLL OFF 0 DEBUG 1 0 . NORMAL .8BIT 1 . 16BIT . 0 XP I/F 1 IEEE1284 0 1 USB Disable USB Enable 0 EDO DRAM 1 SDRAM This Document can not be used without Samsung’s authorization. PLL ON NORMAL .
Network Card Circuit Diagram(4/5) 11-18 This Document can not be used without Samsung’s authorization.
Network Card Circuit Diagram(5/5) This Document can not be used without Samsung’s authorization.
11-4 SCF PBA Circuit Diagram(1/2) 11-20 This Document can not be used without Samsung’s authorization.
SCF PBA Circuit Diagram(2/2) Schematic Diagrams This Document can not be used without Samsung’s authorization.
11-5 RAM DIMM Circuit Diagram(1/2) 11-22 This Document can not be used without Samsung’s authorization.
RAM DIMM Circuit Diagram(2/2) Schematic Diagrams This Document can not be used without Samsung’s authorization.
11-6 Panel PBA Circuit Diagram 11-24 This Document can not be used without Samsung’s authorization.
11-7 PS3 ROM Circuit Diagram Schematic Diagrams This Document can not be used without Samsung’s authorization.
11-8 Connector PBA Circuit Diagram 11-9 Cover Open Sensor Circuit Diagram 11-26 This Document can not be used without Samsung’s authorization.
11-10 Enpty Sensor Circuit Diagram Schematic Diagrams 11-11 Exit Sensor Circuit Diagram This Document can not be used without Samsung’s authorization.
11-12 OPC PBA Circuit Diagram 11-13 Toner PBA Circuit Diagram 11-28 This Document can not be used without Samsung’s authorization.
11-14 Zener PBA Circuit Diagram Schematic Diagrams This Document can not be used without Samsung’s authorization.
