Dell 1600n - Multifunction Laser Printer B/W Service Manual Download Page 152

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Service Manual

Circuit Diagram

11-4

11.2 FAX Section

11.2.1 Modem Part

11.2.1.1 BLOCK DIAGRAM

DSP

SSD

System
Side
Dervice

CX20493
LSD
Line
Side
Dervice

Transformer

Capacitor

Ext Line

Implemented by based on Conexant DAA (Data Access Arrangement) Solution , and is roughly composed of two
kinds Chip Solution

- CX82500(SFM336) : Existing Modem Chip which adds SSD (System Side Device) for interfacing between -

- LSD and DIB of FM336Plus Core

- CX20493(LSD) : LIU (Line Interface Unit) Chip which is controlled by SSD and satisfies each PSTN

requirements by modulating internal Configuration with connecting Tel Line.

Summary of Contents for 1600n - Multifunction Laser Printer B/W

Page 1: ...cautions 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 Connection Diagram 11 Circuit Description 12 Schematic Diagram Easy as TM ...

Page 2: ... Copyright Dell Inc May 2004 ...

Page 3: ...access to laser radiation above a Class I level during normal operation user maintenance or prescribed service condition Warning Never operate or service the printer with the protective cover removed from Laser Scanner assembly The reflected beam although invisible can damage your eyes When using this product these basic safety pre cautions should always be followed to reduce risk of fire electric...

Page 4: ...ng the power connector The power connector must be inserted com pletely otherwise a poor contact could cause overheating possibly leading to a fire When removing the power connector grip it firmly and pull 7 Take care of the power cable Do not allow it to become twisted bent sharply round corners or other wise damaged Do not place objects on top of the power cable If the power cable is damaged it ...

Page 5: ...e following procedures before dismantling the printer or replacing any parts 1 Check the contents of the machine memory and make a note of any user settings These will be erased if the mainboard or network card is replaced 2 Ensure that power is disconnected before servicing or replacing any electrical parts 3 Disconnect printer interface cables and power cables 4 Only use approved spare parts Ens...

Page 6: ...et harm 3 When you move the printer This printer weighs 15 6kg including toner cartridge and cassette Use safe lifting and handling techniques Use the lifting handles located on each side of the machine Back injury could be caused if you do not lift carefully 4 Ensure the printer is installed safely The printer weighs 15 6Kg ensure the printer is installed on a level surface capable of supporting ...

Page 7: ...nt electrostatic charge buildup in the vicinity of the assem bly 3 Use only a grounded tip soldering iron to solder or desolder ESDs 4 Use only an anti static solder removal device Some solder removal devices not classified as anti static can generate electrical charges sufficient to damage ESDs 5 Do not use Freon propelled chemicals When sprayed these can generate electrical charges sufficient to...

Page 8: ...e following tools are recommended safe and easy troubleshooting as described in this service manual DVM Digital Volt Meter Standard Indicates more than 3 digits Driver Standard type type M3 long M3 short M2 long M2 short Tweezers Standard For general home use small type Cotton Swab Standard For general home use for medical service Cleaning Equipments Standard An IPA Isopropyl Alcohol dry wipe tiss...

Page 9: ...el Port F W firmware GDI graphics device interface GND ground HBP Host Based Printing HDD Hard Disk Drive HV high voltage HVPS High Voltage Power Supply I F interface I O Input and Output IC integrated circuit IDE Intelligent Drive electronics or Imbedded Drive Electronics IEEE Institute of Electrical and Electronics Engineers Inc IPA Isopropy Alcohol IPM Images Per Minute LAN local area network l...

Page 10: ... 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 3 1 A4 5 Pattern ...

Page 11: ...Service Manual Reference Information 2 4 2 3 2 A4 2 Pattern ...

Page 12: ...Reference Information Service Manual 2 5 2 3 3 A4 IDC 5 Patten ...

Page 13: ...Service Manual Reference Information 2 6 2 3 4 A4 ISO 19752 Standard Pattern This test page is reproduced at 70 of the normal A4 size ...

Page 14: ...e 14 8kg Gross Weight with package 20 4kg LCD 16 2 Char I O Interface USB2 0 High Speed MPU SPGPm 166MHz Power Consumption Printing Operation 400W Sleep Mode 30 W Energy Star Compliant Power Switch Yes Power Supply Input Voltage Low Voltage 110 127VAC 90 135VAC High Voltage 220 240VAC 180 264VAC Input Frequency 50 60Hz 3Hz Noise Printing 54dBA Copy 55dBA Standby 33dBA Warm Up Time from Cold Status...

Page 15: ...re Operating 10 32 C Non Operating 20 40 Humidity Operating 20 80 Non Operating 10 90 Altitude Max 8 200ft EMI Approval Class B Device Memory Standard Max 32MB 160MB Std Max 12MB PS 4MB FAX 2MB System 2MB Scan 20MB Type SDRAM Expand Memory Slot Type SDRAM DIMM Expand Memory specification would be defined speparate note 128MB Micron Memory will work only in GEU Burst mode off Compression Technology...

Page 16: ... Bitmap Number N A Power Save Yes 5 10 15 30 45min Resolution Normal 600x600dpi 1200x1200 RET Yes Toner Save Yes No dedicated button on CP Memory 16MB FPOT From Stand by Approx 10 seconds From LSU ON A4 From Cold Status Less than 50 seconds Duplex Print N A Printable Area 208 x 273 mm Letter Halftone Gray Scale 128levels Items Tag Heuer Remarks SCX 4920N DELL 3 2 Print Specification ...

Page 17: ...y Approx 75sec USB 1 1 through Platen Gray Approx 75sec USB 1 1 Color Approx 150sec USB 1 1 75dpi 300dpi Resolution Optical 600 1200dpi Enhanced 4800dpi 4800dpi Halftone 256level for only optical resolution Scan Size Max Document Max 216mm 8 5 Width Effective Max 208mm 8 2inch Scan Width Scan to Scan to Application Scan Depth Color 24 bit Mono 1bit for Lineart 8 Bit for Gray scale Items Tag Heuer ...

Page 18: ...3 level by LED Copy Mode Quality Text Mixed Photo Collation Copy 600x300dpi Yes Auto return to default mode Yes Time can be changeable 15 30 60 180sec Off Changeable Default mode Contrast Image Reduce Enlarge No of Copies Special Copy N up copy 2 up 4 up Collation Copy Yes ADF only AutoFit Copy Yes Platen only 2 side Copy Yes Platen only Copy 2 side printed origi nal document into one page ex ID C...

Page 19: ...touch dials TAD I F Yes Tone Pulse Selectable in Technical Mode Pause Yes Auto Redial Yes Last Number Redial Yes Distinctive Ring Yes Caller ID No External Phone Interface Yes Report Tx Rx Journal Yes List Print out Confirmation Yes Help List No Auto Dial List Yes System Data List List all user setting Sound Control Ring Volume Yes Off Low MED HIGH Key Volume Yes On Off Alarm Volume Yes On Off Spe...

Page 20: ... PPS Rx fax duplex print out No Multiple page scan speed 14 ppm LTR Std mode 203 98dpi ITU T 1 Receive Mode Fax TEL Ans Fax DRPD Memory Capacity 4MB Optional Memory No Max locations 199 locations to store to 1 Group Dial Fax Forward Yes On Off Broadcasting up to 209 locations Cover page Yes Delayed fax Yes Memory RX Yes Functions Voice Request No TTI Yes RTI Yes Polling No Earth Recall No Auto Red...

Page 21: ...Path Standard output Bottom to Middle Front FIFO Straight Through Face up Single Sheet Paper Size Max 216 x 356mm 8 5 x14 Min 76 x 127mm 3 x5 ADF Paper Weight 12 5 28lb Capacity 50 sheets Document Size 142mm 216mm 5 6 8 5 Widtth Document Size 148 mm 356mm 5 8 14 0 Length Jam Rate Cassette 2nd Feeder 1 2000 ADF 1 1000 Multi_Feeding Cassette 2nd Feeder 1 1000 Rate ADF 1 500 Printing Skew Top 1 5 177...

Page 22: ...W Accessory Quick setup guide Yes Owner s manual Yes S W CD ROM TBD CDs for Print Driver Scan Driver RCP S W OCR PaperPort FAX MS Fax SCAN S W PaperPort Toner Cartridge 1 EA 3K yield ISO 5 Coverage Power Cable 1 EA Telephone Jack 1 EA Printer Cable No Consumables Type One Piece Type How to install Front door open and front loading Toner Life Initial 3Kpages 5 ISO Test Pattern running Standard 3Kpa...

Page 23: ...Service Manual Specifications 3 10 MEMO ...

Page 24: ...Summary of Product Service Manual 4 1 4 4 4 Summary of Product This chapter describes the functions and operating principal of the main component 4 1 Printer Components 4 1 1 Front View ...

Page 25: ...a from falling off the front Extension output tray 4 Bypass Tray Load print media one sheet at a time 5 Optional Tray2 Load paper into the optional Tray2 6 Tray1 Load paper into the standard Tray1 7 Front Cover Access the toner cartridge 8 Front Output Tray Hold paper as it exits from the front of the machine 9 ADF Output Tray Hold the document as it exits the ADF 10 Scanner Glass Place a document...

Page 26: ...put Slot Hold paper as it exits at the rear of the machine 16 Power Switch and AC Supply power to the machine Power Cord Connector 17 FAX Jack Connect the telephone line to your machine If you use this machine in the serial countries such as Germany and Sweden this socket may be blocked 18 Phone Jack Connect the telephone or answering machine to your machine 19 Optional Tray2 Cable Connect the opt...

Page 27: ...Service Manual Summary of Product 4 4 4 1 3 Control Panel ...

Page 28: ...Summary of Product Service Manual 4 5 ...

Page 29: ...ets in 15 30 C 4 2 3 Drive Ass y It is motor driven gear unit which drives the feeding unit the fusing unit and the distributing unit 4 2 4 Fuser The fuser consists of the Heat Lamp Heat Roller Pressure Roller Thermistor and Thermostat It melts the toner to the paper with pressure and a heat to complete the printing job 4 2 4 1 Thermostat The thermostat is a temperature sensing device which cuts o...

Page 30: ...ver 4 2 5 Scanner It reads an image with a photosensitive sensor It consists of a CCD module Connection board ADF board AFE Analog Front End and Image Processor Located in CPU platen glass and ADF CCD Module Specification 1 Resolution 600dpi A4 2 Maximum scan wide 8 5 3 Color filter Red Green Blue 4 Output channel 3 channels R G B 5 Effective pixel 5 400 pixel 3 6 Voltage 24V 5V 7 Pre heating time...

Page 31: ... to create the latent image on the OPC drum The OPC drum rotates as the same speed as the paper feeding speed When it hits the corner of the poly gon mirror it generates the HSYNC signal The CPU forms the left margin of the image using this signal After detecting the HS YNC signal the image data is sent to the LSU to arrange the its left margin on the paper Each surface of the polygon mirror provi...

Page 32: ...ing roller and blade Doctor blade Developing Method Non magnetic 1 element contacting method Toner Non magnetic 1 element shatter type toner The life span of toner 3 000 sheets ISO Pattern Toner remaining amount detecting sensor None OPC Cleaning Collect the toner by using electric static FILM OPC Management of disusable toner Collect the toner by using electric static Clenerless Type No disusable...

Page 33: ...in PBA It is the functional center of the product It controls the basic machine operations including the fax scan printer operations sensor detection and power levels 1 2 3 4 5 23 6 7 9 10 11 12 13 14 15 8 7 7 16 7 17 7 24 7 18 7 19 7 20 7 21 7 22 ...

Page 34: ...72 U48 VARTA 3 6V BATT RELAY HRSIKH RE1 SDRAM K4S281632E U43 SDRAM K4S281632E U44 MODEM CXB2500 11 U52 MOTOR DRIVER A3977SLP U50 FLASH MEMORY PCL HIGH 29LV160DB U27 FLASH MEMORY PS3 HIGH 29LV160DB U19 FLASH MEMORY PCL6 LOW 29LV160DB U28 FLASH MEMORY PS3 LOW 29LV160DB U20 FLASH MEMORY COED LOW 29LV160DB U15 IMAGE PROCESSOR CIP4E U11 SRAM K6R1016VID U9 A D CONVERTER AFE CIP4 U5 FLASH MEMORY CODE HIG...

Page 35: ... 5 channel Interrupt Control 2 port USB Host 1 port USB Device ver 1 1 Interface Control Parallel Port Interface Control UART 2 Channel Synchronous Serial Interface Control Timer 4 Channel Watch Dog Timer Power control Normal Slow Idle Stop and SL_IDLE mode A D Converter 10 bit 2 Channel General I O Port Control Print Head Control Carrier Motor Control Paper Motor Control Tone Generator RTC with c...

Page 36: ...hen it is passing the actuator of the sensor part That process is called developer ID sensing 4 Paper Exit Sensing The system detects the paper going out of the set with the exit sensor assembled to the actuator attached to the frame Paper detects the on off time of exit sensor and the normal operation or jam information is passed to the CPU The paper JAM2 is informed 5 Cover Open Sensing The Cove...

Page 37: ...y the power to the main board and ADF board The HVPS part creates the high voltage of THV MHV Supply Dev and supplies it to the developer part for making the best condition to display the image The HVPS part takes the 24V and outputs the high voltage for THV MHV BIAS and the outputted high voltage is supplied to the toner OPC cartridge and transfer roller ...

Page 38: ...C drum to recover toners Output Voltage 1000V 1200V Error Toner contamination occurs at the backside of a printed paper 4 Developing Voltage DEV Function It is a voltage to develop a toner with using a difference of electronic potential on an exposed part by LSU Laser Scanning Unit Generally the electronic potential of exposed OPC is 180V and exposed developer is 350V when printing so toner with m...

Page 39: ...quency 50 60 Hz Frequency Fluctuating range 47 63 Hz Input Current Under 5 0Arms 2 5Arms But the status when lamp is off or rated voltage is inputted outputted 2 Rated Output Power 3 Consumption Power 4 Length of Power Cord 1830 50mm 5 Power Switch Use NO ITEM CH2 CH3 Remark 1 CHANNEL NAME 5V 24 0V 2 CONNECTOR PIN CON 3 CON 3 5V PIN 8 24V PIN 11 12 13 GND PIN 7 GND PIN 9 10 3 Rated Output 5V 5 24V...

Page 40: ...ls the switch with the Triac a semicon ductor switch The On Off control is operated when the gate of the Triac is turned on off by Photo triac insulting part In the other words the AC control part is passive circuit so it turns the heater on off with taking signal from engine control part When the HEATER ON signal is turned on at engine the LED of PC1 Photo Triac takes the voltage and flashes From...

Page 41: ...time The feed sensor cannot be Off After the leading edge of the paper passes the feed sensor the paper cannot pass the exit sensor after certain time The exit sensor cannot be On The paper exists between the feed sensor and the exit sensor 4 5 1 3 Jam 2 After the trailing edge of the paper passes the feed sensor the paper cannot pass the exit sensor after certain time 4 5 2 Drive By gearing the m...

Page 42: ...gon motor When the receiving light part detects the beam Hsync occurs When the polygon motor speed becomes normal LReady occurs If the two conditions are satisfied the sta tus bit of the LSU controller register becomes 1 the LSU is ready If the two conditions are not satisfied the error shown in below occurs Error Description Open heat error When warming up it has been lower than 68 C over 25 sec ...

Page 43: ...mpedance of a modem Also there is a ring detect circuit to detect a ring signal from a switchboard and a surge absorber to protect it from an external high voltage supply applied to a line input unit 4 7 OPE PBA OPE board is consists of various function keys and LCD to display an operation of key MICOM creates a circuit with using HT48R50 MICOM of HOLTEC CO and applies LED and LCD A communication ...

Page 44: ...cable routing that will be affected Whenever servicing the machine you must perform as follows 1 Check to verify that documents are not stored in memory 2 Be sure to remove the toner cartridge before you disassemble parts 3 Unplug the power cord 4 Use a flat and clean surface 5 Replace only with authorized components 6 Do not force plastic material components 7 Make sure all components are in thei...

Page 45: ...Cover 1 Remove the four screws securing the Rear Cover 2 Remove the Rear Cover from the Frame Ass y and Scanner Ass y 3 Unlatch the Cover Face Up securing the Rear cover as shown below Then lift the Cover Face Up out Cover Face Up Rear Cover ...

Page 46: ...Cassette 3 Open the front cover and remove the 2 screws on the front side and 1 screw on the back side Push the side cover RH to the right and remove it from the Frame Assembly 4 Open the front cover and remove the 2 screws on the front side Push the side cover LH to the left and remove it from the Frame Assembly Cassette Side Cover RH Side Cover LH ...

Page 47: ...Service Manual Precautions 5 4 5 4 Front Cover 1 Open the Front Cover 2 Unlatch the Front Cover securing the Frame Ass y Then remove the Front Cover as shown below Front Cover ...

Page 48: ...move Rear Cover see page 5 2 Side Cover LH RH see page 5 3 2 Remove the 2 screws securing the Scanner Ass y as shown below 3 Remove the 5 connectors and the ground wire screw from the main PBA as shown below 4 Pull up the Scanner Ass y as shown below 5 Pull the Platen Cover upward and remove it 3 1 2 ...

Page 49: ...E dummy to release the hook connecting the cover with the scan assem bly 8 Remove the 3 screws and the connector and remove the OPE unit as shown below 9 Remove the 4 screws securing the Scan Upper 10 Unlatch the Scan Upper securing the Scan Ass y Then pull the Scan Upper upward and remove it Scan Upper ...

Page 50: ...elow 14 Remove the Reduction Gear and Idle Gear as shown below Scanner Module CCD Cable CCD Shaft Belt Spring Gear Reduction Gear Timing Caution Assembling Scanner Module When assembling the scanner module the belt and the belt Spring the belt spring must be located on the right side of the scanner module and the parts should be put as close to each other as possible as shown below ...

Page 51: ... Remove the 3 screws and take out the Motor Bracket 16 Unplug the one connector from the Open Sensor Ass y 17 Unlatch the Open Sensor and remove it as shown below 18 Remove the Holder CCD Motor Braket Open Sensor Unlock Lock Holder CCD ...

Page 52: ... and remove it 3 Remove the Open Cover as shown below 4 Pull the White Bush then rotate it until it reaches the slot as shown below Then lift the Pick Up Ass y out 5 Remove the 2 screws securing the Upper Cover and remove it as shown below 6 Unplug the one connector and remove 5 screws securing the ADF Motor Ass y Then take out the ADF Motor Ass y ADF Ass y Upper Cover Open Cover Pick up Ass y Bus...

Page 53: ...should remove Rear Cover see page 5 2 Side Cover LH RH see page 5 3 Scanner Ass y see page 5 5 2 Remove the 5 screws securing the OPE PBA from the OPE Cover 3 Remove the Contact Rubber from the OPE Cover 4 Remove the Key Pad from the OPE Cover OPE Cover OPE PBA Key Pad Contact Rubber ...

Page 54: ...e page 5 3 Scanner Ass y see page 5 5 Controller Shield Ass y see page 5 12 2 Remove the 6 screws securing the Middle Cover and remove it 3 Unlatch the Middle Cover Securing the Frame Ass y using a proper tool as shown below Then up ward the Top Cover out 4 Remove the Exit Gear and Bearing as shown below Middle Cover Main Frame Exit Gear Bearing Exit Roller ...

Page 55: ...r Shield Assembly to Middle Cover the frame and remove the assembly 3 Remove the 2 screws connecting the NIC card to the Controller Shield Assembly and remove the card 4 Remove the 2 screws connecting the LIU to the Controller Shield Ass y and remove the LIU 5 Remove the 3 screws to remove the bracket from the main board 5 9 Controller Shield Ass y Controller Shield Ass y NIC Card Main Board Brack...

Page 56: ...5 3 Scanner see page 5 5 2 Unplug 4 connector 3 Remove the 12 screws securing the Engine Shield Ass y and remove it Then unplug the all the connec tors from the Main PBA and SMPS 4 Remove the 2 screws to remove the exit board 5 10 Engine Shield Ass y Exit Board Fan Connector AC Connector AC Connector Main Connector Engine shild Ass y Exit Board ...

Page 57: ...ge 5 2 Side Cover LH RH see page 5 3 Scanner Ass y see page 5 5 Engine Shield Ass y see page 5 12 2 Remove the 3 screws securing the Inlet Bracket and remove it 3 Remove the one screw securing the Engine Shield 4 Remove the 4 screws securing the SMPS Then lift the SMPS out as shown below Inlet Bracket SMPS ...

Page 58: ...e the 4 screws securing the Fuser Ass y and remove it 3 Remove the 2 screws securing the Thermostat Then lift the Thermostat out 4 Remove the 2 screws securing the Halogen Lamp Then take out the Halogen Lamp from the Heat Roller 5 Remove the 4 screws to remove the fuser cover as below Remove the 2 screws to remove the guide input Fuser Cover Claw Fuser Ass y Heat Roller Halogen Lamp guide Input Th...

Page 59: ...Service Manual Precautions 5 16 6 Unwrap the Thermistor Harness as shown below 7 Remove the one screw securing the Thermister and remove it as shown below Thermistor Thermistor ...

Page 60: ...ervice Manual 5 17 5 13 Fan 1 Before you remove the Fan you should remove Rear Cover see page 5 2 Side Cover RH see page 5 3 2 Unplug the connector from the SMPS and remove the one screw Then take out the Fan DC Fan ...

Page 61: ...e 5 11 2 Remove the 4 screws securing the LSU and remove it 3 Unplug the two connectors 5 14 LSU 1 Before you remove the CRUM Board you should remove Rear Cover see page 5 2 Side Cover LH RH see page 5 3 Scanner Ass y see page 5 5 Front Cover see page 5 4 Middle Cover see page 5 11 LSU see page 5 18 2 Remove the 4 screws to separate the CRUM board from the main frame as below 5 15 CRUM Board CRUM ...

Page 62: ...Drive Ass y you should remove Rear Cover see page 5 2 Side Cover LH see page 5 3 Shield Controller Ass y see page 5 9 2 Remove the 5 screws securing the Drive Ass y 3 Take out the Drive Ass y then unplug the connector from the Motor PBA as shown below Drive Ass y Drive Ass y ...

Page 63: ...e page 5 18 2 Remove the 3 screws securing the Transfer Earth and remove it 3 Unplug the PTL Holder connector then remove the PTL Holder and PTL Lens as shown below 4 Remove the transfer roller by pressing the hook securing the roller to the right using a tool 5 Unlatch the Bushing and remove it Then lift the Transfer Roller out as shown below 5 17 Transfer Ass y Transfer Earth Hook PTL Holder PTL...

Page 64: ... Cover see page 5 11 Drive Ass y see page 5 18 Controller Shield Ass y see page 5 12 2 Remove the 4 screws securing the Guide Paper Front and remove it 3 Remove the screws on the right and left sides of the guide paper to remove it as well as the spring as below 4 Remove the 3 screws securing the Feed Bracket and remove it 5 Remove the Feed Gear2 Guide Paper Front Feed Bracket Feed Gear2 Screw Gui...

Page 65: ...Service Manual Precautions 5 22 6 Remove the Feed Gear1 Ass y 7 Pull up the Feed Roller and Feed Roller1 Feed Gear1 Ass y Feed Roller Feed Roller1 ...

Page 66: ... 21 2 Remove the Pick Up Gear Ass y 3 Take out the Pick Up Ass y as shown below 4 Remove the 2 s securing the Manual Solenoid and Pick Up Solenoid Then remove Manual Solenoid and Pick Up Solenoid 5 To replace the pick up roller move the stopper secur ing the sponge roller to the right and then turn the sponge roller to remove it from the shaft When replacing the pick up roller only it is possible ...

Page 67: ...nce and repair DCU using method Jam removing method and so on It includes the contents of manual 6 1 Paper path Scanner Part PTL PIC K R PR CR DR SR TR FR OPC L S U Fuser Toner Cartridge 1 2 3 4 5 6 8 7 Sensor Doc Sensor Doc ADF Roller Pickup Roller Exit Roller Doc Paper 30Sheets ADF Idle Roller Sensor Regi Feed Roller CCD Module White Sheet White Sheet Sensor Regi Sensor Scan Sensor Scan Engine P...

Page 68: ... passes 4 The paper passed the paper exit sensor moves out from the set Jam 2 occurs sometime after if the tail ing edge of the paper has not exited out from the set after the leading edge of paper passes the paper exit sensor Scanner Part CCD Module White Sheet White Sheet 1 2 3 4 8 5 6 7 5 6 7 Sensor Scan Sensor Regi Feed Roller 8 Exit Roller 1 2 3 4 Doc Paper 50 Sheets Pickup Roller ADF Roller ...

Page 69: ...remove the jammed paper If you don t see the paper open the covers Do not use a pinset or a sharp metal tool when removing a jam The covering of a metal part can be removed which can cause an electric leakage PTL PIC K R PR CR DR SR TR FR Empty Sensor OPC L S U Fuser Toner Cartridge EXIT Sensor Feed Sensor MP Sensor Paper Jam0 PTL PIC K R PR CR DR SR TR FR Empty Sensor OPC L S U Fuser Toner Cartri...

Page 70: ...Automatic Document Feeder DOCUMENT JAM appears on the display 6 2 1 1 Input Misfeed 1 Open the ADF top cover 2 Pull the document gently to the right and out of the ADF 3 Close the ADF top cover Then load the documents back into the ADF NOTE To prevent document jams use the document glass for the thick thin or mixed documents ...

Page 71: ... the ADF or the feed area by carefully pulling it towards the right by using both hands 3 Close the document cover Then load the documents back into the ADF 6 2 1 2 Exit Misfeed 1 Open the document cover and turn the release knob to remove the misfed documents from the exit area 2 Close the document cover Then load the documents back into the ADF 6 2 1 3 RollerMisfeed ...

Page 72: ...To avoid tearing the paper pull the jammed paper out gently and slowly 6 2 2 1 JAM0 In the Paper Feed Area 1 Open and close the front cover The jammed paper automatically exits the machine If the paper does not exit continue to Step 2 2 Pull the paper tray open 3 Remove the jammed paper by gently pulling it straight out If there is any resistance when you pull the paper or the paper is not seen in...

Page 73: ...ne If the paper does not exit continue to Step 2 2 Gently pull the paper out of the front output tray 3 If there is any resistance when you pull the paper or the paper is not seen in the front output tray open the rear cover 4 Remove the jammed paper by gently pulling it straight out 5 Close the rear cover 6 Open and close the front cover to resume printing ...

Page 74: ...r Cartridge Area NOTE The fuser area is hot Be careful when removing paper from the machine 1 Open the front cover and remove the toner cartridge 2 Remove the jammed paper by gently pulling it straight out 3 Replace the toner cartridge and close the front cover Printing automatically resumes ...

Page 75: ...er jams can be avoided If a paper jam occurs follow the steps outlined in Clearing Paper Jams Follow the procedures in Loading Paper Ensure that the adjustable guides are positioned correctly Do not overload the paper tray Ensure that the paper is below the paper capacity mark on the inside wall of the paper tray Do not remove the paper from the tray while printing Flex fan and straighten the pape...

Page 76: ...Data 8 Machine Setup Language Power Save CCD Power Save USB Mode 9 Maintenance Clean Drum Clear Memory 6 3 User Mode SCX 4920N The table in the bellow explains the possible setting functions by user The details about the ways to use are explained in the user manual In the service manual the items are about the possible set up by user ...

Page 77: ...fix Dial No Stamp RCV Name ECM Mode 6 Reports Phone Book Send Report RCV Report System Data Scheduled Jobs Tx Confirm Junk Fax List 7 Sound Volume Speaker Ringer Key Sound Alarm sound 8 Machine Setup Machine ID Date Time Clock Mode Dial Mode Language Power Save CCD Power Save USB Mode 9 Maintenance Clean Drum Notify toner Clear Memory 6 3 User Mode SCX 4920N The table in the bellow explains the po...

Page 78: ...k the machine and perform various test to isolate the cause of a malfunction While in Tech mode the machine still performs all normal operations To enter the Tech mode To enter the Tech mode press in sequence and the LCD briefly displays TECH the machine has entered service tech mode 6 4 2 Setting up System in Tech Mode SCX 4920N ...

Page 79: ...alue You can select the rate between 5 and 10 CLEAR ALL MEMORY The function resets the system to factory default settings This function is used to reset the system to the initial value when the product is functioning abnor mally All the values are returned to the default values and all the information which was set by the user will be erased Method 1 Select the MEMORY CLEAR at the TECH MODE 2 Push...

Page 80: ...grade Save the files in the same folder 2 In the DOS input as below and push the enter key Then it will be automatically upgraded 3 There are two commands for the conditions of product When the product is in idle condition down rom file When the product is in Ready condition TECH MODE DATA SETUP FLASH UPGRADE LOCAL fprt rom file 4 Do not turn off the power while upgrading process 2 Remote FAX This...

Page 81: ...ine S ROM The result and the software version appear in the LCD display FLASH VER 1 00 V ENGINE VER 1 00V PATTERN TEST Using this pattern printout you can check if the printer mechanism is functioning properly It is needed in the production progress Service person doesn t need to use it SHADING TEST The function is to get the optimum scan quality by the specific character of the CCD Charge Coupled...

Page 82: ...T 30 protocol during the most recent sending or receiving operation Use this list to check for send and receive errors If a communication error occurs while the machine is in TECH mode the protocol list will print automatically SYSTEM DATA This list provides a list of the user system data settings and tech mode settings ...

Page 83: ...f 1550V 50V 2 Dev Bias Test 1 On 2 Off 430V 20V 3 THV EN NEG Test 1 On 2 Off 1000V 300V 150V 4 THV ON 1300V 1 On 2 Off 1300V 20V 5 THV ADC 1300V 1 On 2 Off ADC Value 101 5 6 THV ADC 600V 3500V 1 On 2 Off Compare each ADC Value 6 5 Engine Test Mode The Engine Tests Mode supplies useful functions to check the condition of the engine It tests the condition of each device and displays the result of th...

Page 84: ...ady is displayed When the Laser Scanning Laser Leady On Off Unit is ready to print On the other case Laser Error 13 LD Test Diode On is displayed when the laser diode is on Diode On Off On the other case Diode Off is displayed 21 Feed Sen Test These Functions are considered to check the present Sensor Off to Sensor On 22 Exit Sen Test state normal or not of the Sensors 23 Cover Sen Test After the ...

Page 85: ...t operate the machine it will start a scan and page count The time the machine was first used is remembered These settings are are remembered after memory delete Clear All Memory Method Press MENU 1 9 3 in sequence Firmware version is displayed on LCD Press 1 in the number keypad The LCD display shows Updated date Press 2 in the number keypad The LCD display shows Product first use date ...

Page 86: ...ge usage of 50 transmitted and received documents per day Environmental conditions and actual use will may vary The cycle period given below is for reference only COMPONENT REPLACEMENT CYCLE ADF Rubber 20 000 Pages ADF Roller 60 000 Pages Pick up Roller 60 000 Pages Friction Pad 60 000 Pages Transfer Roller 60 000 Pages Fuser 80 000 Pages Toner Cartridge 3 000 Pages A4 ISO 5 Pattern ...

Page 87: ...ller 37 7mm Black spot 3 Supply Roller 37 0mm Horizontal density band 4 Develop Roller 35 2mm Horizontal density band 5 Transfer Roller 45 3mm Black side contamination transfer fault 6 Heat Roller 77 8mm Black spot and fuser ghost 7 Pressure Roller 75 4mm Black side contamination PTL PIC K R PR CR DR SR TR FR OPC L S U Fuser Toner Cartridge MP Sensor 1 2 3 4 OPC Drum Charge Roller Supply Roller De...

Page 88: ...o try again CRU Fuse Error Low Heat Error Meaning There is a problem in the fuser unit Solution Check thermostat thermister contact point Heating Lamp CRU Fuse Error Over Heat Meaning The printer has overheated Solution Your unit will automatically return to the standby mode when it cools down to normal operating temperature If failure persists check the ELA HOU FUSER Delayed Function Meaning The ...

Page 89: ...ransmission into more than one operation No Answer Meaning The remote fax machine has not answered after several redial attempts Solution Try again Verify the number to make sure a fax can be received No Not Assigned Meaning The speed dial location you tried to use has no number assigned to it Solution Dial the number manually using the number keypad or assign the number No Not Available Meaning Y...

Page 90: ...oup dial location is already registered with another speed dial number Solution Select another group dial location Retry Redial Meaning The multi function printer is waiting for a specified time interval to redial a previously busy station Solution You can press Select to immediately redial or Cancel to cancel the redial operation Toner Low Meaning The toner is almost empty Solution Take out the t...

Page 91: ... EXIT Sensor Feed Sensor MP Sensor Check and Cause Solution 1 Check the Solenoid by using Engine Test Mode Diagnostic Mode code 0 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 pape...

Page 92: ...ed Check if the lever part is deformed 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 t...

Page 93: ...necessary 2 Clean the friction pad with soft cloth dampened with IPA Isopropyl Alcohol 3 Use the smooth paper 7 1 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 remove the foreig...

Page 94: ... OPC against the ongoing direction Clean fingerprints on the OPC softly with soft cloth dampened with IPA Isopropyl Alcohol or tis sue 7 1 8 Defective ADF Description ADF Automatic document Feeder is not properly operated Check and Cause Solution 1 Check if ADF rubber and HOLDER rubber are dam aged 2 Check if the document sensors of ADF Ass y 3 paper sensors are normal 1 Replace the contaminated o...

Page 95: ...gain after clearing the memory 2 After confirming that OPE HARNESS is connected to the Connection B d correctly if it is so then replace the OPE Ass y and Main Board in sequence 7 2 2 Defective LCD Operation Description Defective LCD Operation Check and Cause Solution 1 Clear the memory See page 6 5 3 2 Confirm to catch a click sound while a key on the OPE panel is pressed on 1 The key is wrong it...

Page 96: ...tte Check and Cause Solution 1 Bending or deformation of the actuator of the paper sen sor 2 The function of the Main PBA is defective Perform Engine Test Mode Perform Engine Test Mode diagnos tic code 2 1 Replace the defective actuator 2 Replace the Main PBA 7 2 5 Paper Empty without indication Description The paper lamp on the operator panel does not come on when the paper cassette is empty Chec...

Page 97: ...tment in the Main PBA 1 Replace the hook lever if defective 2 Check the insertion of the Door Open S W Connect 3 Replace the Main PBA or Door Open S W 7 2 7 No Beep on when the Door is open Description The ERROR lamp does not come on even when the printer Door is open Check and Cause Solution Check the Connector CN1 and Circuit of the Cover Switch department in the Main PBA 1 Check the insertion o...

Page 98: ...heck the Motor operation 1 Check the Motor harness replace it if defective 2 Replace the SMPS if necessary 7 2 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 for defective of LCD Panel on the front cover if the LCD of Panel does not appear after normal warmin...

Page 99: ...ved Description When printing 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 Engine Test Mode Diagnostic Code 1 LSU Motor on 1 Replace LSU 2 Replace the Main Control board ...

Page 100: ...nter 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 or light image occur in front of the image 3 It may occur when a Burr and foreign substances are on the window of the developer frame 4 If the fuser is defectiv...

Page 101: ...ital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1 If dark or blurry black spots occur periodically the rollers in the Developer may be contaminated with foreign matter or paper particles Charge roller 37 7 mm interval OPC drum 75 5 mm interval 2 If faded areas or voids occur in a black image at intervals of 75 5 mm or black spots occur elsewhere the OPC drum s...

Page 102: ...rint out 3 No 2 Wait 30 minutes after printer is pow ered on before you start printing 4 No3 Clean up the contaminated area by the toner 5 Replace the HVPS if the problems are not solved by the above four directions 7 3 6 Dark Image or a Black Description The printed image is dark Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1 No charge v...

Page 103: ...lace both the left and right Spring Holder 2 Problem with the toner cartridge replace the toner cartridge and try to print out 7 3 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 expire...

Page 104: ...aminated terminals 2 Problem in the toner cartridge replace the toner cartridge and try to print out 3 Replace the engine board if not solved by the above directions 1 2 4 If not solved by the direction 3 check the transfer roller lifetime and replace it 5 Wait about 1 hour after power on before using printer 6 Problem in the toner cartridge replace the toner cartridge and try to print out 7 3 10 ...

Page 105: ...talPrinter DigitalPrinter DigitalPrinter DigitalPrinter DigitalPrinter 47 mm Check and Cause Solution The temperature of the fuser is maintained high 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 3 13 Stains on the front of the page Description The background on the face of...

Page 106: ... 15 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 toner cartridge and the printer 7 3 16 Blank Page Print out 2 Description 1 Blank page is printed 2 One or several blank pages are printed 3 Whe...

Page 107: ... defective Try to replace the OPE Ass y 3 Check the Speaker connection and try to replace it 4 Lastly try to replace the Main B d 7 4 2 Defective MF DIAL Description The MF DIAL is not functioning Check and Cause Solution 1 Check if the telephone line is connected correctly 2 Wile the BUTTON KEY is pressed check to catch a CLICK sound 3 Check the connection of HARNESS between the LIU and the Main ...

Page 108: ... LIU B d 2 If the MODEM testing is abnormal try to replace the Main B d 7 4 4 Defective FAX FORWARD Description RECEIVE is functioning but FORWARD is not functioning or the received data are broken Check and Cause Solution 1 Check if there is NOISE when pressing on hook dial 2 Check the RECEIVE condition by trying to forward a FAX to another fax machine from the forwarding side FAX 3 Check if the ...

Page 109: ...ing on hook dial 2 Ask to the forwarding side check the image quality of another machine receiving a FAX additionally sent to 1 If it makes NOISE rearrange the telephone line Refer to Defective FAX RECEIVE 2 Check if the FAX status of the forwarding side is also normal Check and Cause Solution Check if the RECEIVE Mode is TEL MODE or FAX MODE Even when the RECEIVE Mode is changed to FAX MODE it ca...

Page 110: ...g Check and Cause Solution Check the FAX status of the forwarding side After checking the data of the forwarding side correct the FAX of the forwarding side Check and Cause Solution 1 Check if the RECEIVE Mode is TEL MODE or FAX MODE 1 If the RECEIVE Mode is set to the TEL MODE reset it to the FAX MODE 2 Even after the RECEIVE Mode is changed to the FAX Mode it cannot receive then try to replace t...

Page 111: ...white black reference voltage in Main PBA 1 Room light ca transit a thin original 2 Remake shading profile in the tech mode 3 Replace U60 if it is defective U60 154 0 5V U60 155 3 3V 7 5 2 Black Copy Description Black page is printed out when Copy Check and Cause Solution 1 Check the CCD problem in Main PBA 2 Check shading profile 1 Check the CCD harness contact 2 Remake shading profile in the tec...

Page 112: ...ght or bad Check and Cause Solution 1 Check shading profile 2 Check the gap between original and scanner glass 3 Check printing quality 1 Remake shading profile in the tech mode 2 The gap above 0 5 mm can cause a blurred image 3 See Print troubleshooting 1 Check the right position of the Scanner Motor and check the any mechanical disturbance in the CCD carriage part 2 If any driver is defective re...

Page 113: ...t related to driver setup if it is not so rein stall it Refer to User s Manual 3 If copy function works replace the Main PBA If copy function doesn t work replace the CCD Ass y and try again 7 6 2 Defective Image Quality of PC Scan Description The image PC scanned is not clear or bad Check and Cause Solution 1 Check the waveform form by performing a CCD test in TECH Mode 2 Check if the resolution ...

Page 114: ... of its life white streaks or light print occurs The LCD displays the warning mes sage Toner Low You can temporarily reestablish the print quality by redistributing the remaining toner in the cartridge 7 7 3 Service for Judgement of Inferior Expendables and the Standard of Guarantee Please refer to User s Manual or Instructions on Fax Printer Expendables SVC for the judgement of inferior expend ab...

Page 115: ...er periodically 1 Check the cycle of 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...

Page 116: ... printouts 1 Check whether foreign sub stance or toner are stuck to the terminal contact point of the developer 2 Check whether the state of the terminal assembly is normal 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 i...

Page 117: ...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 also...

Page 118: ...ing succeeds verify that community names with sufficient permissions have been used Check the environment as described in Auto Detection of Print Server Check NetWare file server consoles for error messages regarding nodes with conflicting network numbers On Network Interface in SyncThru you should set Static to IPAddress Assignment Method in TCP IP tab You should set IP address Subnet Mask and De...

Page 119: ...Thru The print server name is displayed but the test page is not printed Firmware upgrade process is completed But upgrading is not executed 1 Verify that the printer power switch is turned on and the READY message is displayed on the printer front panel 2 Verify that the LAN cable is plugged into the PortThru card 3 Verify that the second LED on the PortThru card blinks If the second LED blinks r...

Page 120: ... If LAN is connected by routers SyncThru is unable to detect the printers In this case one of protocols which are enabled in NPC should be Installed in the computers 4 In case that the protocol which is enabled in NPC is installed in the computers If TCP IP installed check entry values of IP address subnet mask and default gateway Try Add a Port 7 8 4 SyncThru Installation Problems Problem Solutio...

Page 121: ... Assembly Exploded view page 8 6 8 4 OPE Assembly Exploded view page 8 10 8 5 Scanner Assembly Exploded view page 8 12 8 6 Middle Cover Assembly Exploded view page 8 14 8 7 Frame Ass y Exploded view page 8 15 8 8 Fuser Ass y Exploded view page 8 18 8 9 Cassette Ass y Exploded view page 8 21 8 10 SCF Option Cassette Frame Exploded view page 8 23 Up date On March 04 2004 ...

Page 122: ...ded View Parts List 8 2 8 1 Main Assembly 2 3 16 4 5 14 3 8 9 27 7 28 26 1 1 20 12 12 1 12 2 12 3 14 14 1 13 14 5 14 4 24 6 4 6 2 6 3 22 6 19 18 14 2 17 1 17 3 17 1 10 11 1 4 1 2 1 3 1 5 0 10 1 10 2 10 3 10 5 10 4 10 6 6 1 ...

Page 123: ...ELD ASS Y LV 110V JC96 03107A 1 O 110V ELA HOU SHIELD ASS Y HV 220V JC96 03108A 1 O 220V 6 1 SMPS SMPS V1 HVPS 110V JC44 00070A 1 O 110V SMPS SMPS V2 HVPS 220V JC44 00071A 1 O 220V 6 2 MEA UNIT SHIELD ENGINE JC97 01794A 1 O 6 3 SHIELD ENGINE R2 JC63 00399A 1 X 6 4 SUPPORTER 6103 001056 2 X 7 PBA MAIN MAIN CONTROLLER JC92 01601A 1 O 8 ELA HOU NPC3_PRT JC96 02906A 1 O 8 1 PBA SUB NPC3_PRT JC92 01466...

Page 124: ... 00962A 1 X 14 5 LABEL PORT REAR COVER 330 JC68 01345A 1 X 15 BADGE DELL JC64 00131A 1 O 16 CBF HARNESS MOTOR JC39 00241A 1 O 17 MEA ETC TR JC97 01917A 1 O 17 1 ROLLER TRANSFER R2 JC66 00703A 1 X 17 2 GEAR TRANSFER JC66 00395A 1 X 18 COVER MIDDLE FRONT L JC63 00386A 1 O 19 COVER MIDDLE FRONT R JC63 00387A 1 O 20 PBA SUB LIU JC96 01607A 1 O 22 MEA UNIT CASSETTE USA JC97 01919A 1 O 23 CBF HARNESS EN...

Page 125: ...o Description SEC Code Q ty SA Remark 0 ELA UNIT RX DRIVE JC96 03078A 1 O 1 BRACKET GEAR MAIN JC61 00891A 1 X 2 GEAR RDCN 53 26 JC66 00388A 1 X 3 GEAR RDCN 113 33 JC66 00706A 1 X 4 GEAR RDCN 57 18 JC66 00389A 2 X 5 WASHER PLAIN 6031 000023 2 X 6 BRACKET MOTOR MAIN R2 JC61 00916A 1 X 7 GEAR RDCN 103 41 JC66 00390A 1 X 8 GEAR RDCN 90 31 JC66 00392A 1 X 9 MOTOR STEP MAIN JC31 00037A 1 O ...

Page 126: ...Y 5 1 6 1 6 2 6 3 1 2 1 1 1 2 1 1 2 4 1 2 2 1 2 3 2 0 2 1 2 2 2 16 2 3 2 6 2 7 2 9 2 13 2 12 2 17 2 18 2 5 2 8 2 15 2 15 2 4 2 10 2 19 2 11 2 19 2 11 5 2 5 2 3 3 1 3 13 3 20 3 13 3 16 3 18 3 9 3 15 3 10 3 11 3 14 3 2 3 3 3 7 3 8 3 16 3 4 3 5 3 6 3 18 3 7 3 18 3 12 3 19 3 19 3 17 ...

Page 127: ...Exploded View Parts List Service Manual 8 7 ADF Assembly Continued 4 4 1 4 3 1 4 3 4 3 2 4 3 4 4 3 3 4 8 4 9 4 4 4 5 4 4 4 6 4 2 S 4 7 4 7 S ...

Page 128: ...A 1 O 2 7 PMO ACTUATOR REGI SENSOR JC72 01010A 1 O 2 8 PMO ACTUATOR SCAN SENSOR JC72 01011A 1 O 2 9 SPRING ETC TORSION DOC CC2 F JB61 00076A 3 X 2 10 IPR GROUND_ROLLER JC70 10467A 1 X 2 12 ROLLER EXIT JC66 00559A 1 X 2 13 MEC BRUSH ANTISTATIC JC75 00095A 1 X 2 14 PPR WHITE BAR SHEET JC72 00752A 1 X 2 15 PMO BUSH JB72 00819A 4 X 2 16 CBF HARNESS ADF JC39 00278A 1 X 2 17 GEAR AGITATOR 2 JC66 00310A ...

Page 129: ... JC97 01937A 1 O 4 1 COVER PLATEN R2 JC63 00374A 1 O 4 2 SHEET WHITE SPONGE JC63 00209A 1 O 4 3 MEA TX STACKER JC97 01938A 1 O 4 3 1 COVER STACKER TX JC63 00457A 1 X 4 3 2 GUIDE DOC L JC61 00958A 1 X 4 3 3 GEAR PINION JG66 40003A 1 X 4 3 4 GUIDE DOC R JC61 00959A 1 X 4 4 SPRING ETC FEED JC61 00011A 6 O 4 5 PMO ROLL PINCH JG72 40663A 2 O 4 6 ICT SHAFT PINCH JF70 40521B 1 O 4 7 MEA UNIT HINGE JC97 0...

Page 130: ...Service Manual Exploded View Parts List 8 10 8 4 OPE Unit Assembly 0 1 3 9 8 11 12 10 7 6 5 4 15 13 14 16 2 17 ...

Page 131: ...OPY_DELL JC64 00120A 1 O 4 KEY START COPY JC64 00126A 1 O 5 KEY CANCEL JC64 00127A 1 O 6 KEY SEND FAX JC64 00128A 1 O 7 KEY START SCAN JC64 00129A 1 O 8 KEY SCROLL_DELL JC64 00123A 1 O 9 KEY QUALTY JC64 00121A 1 O 10 KEY FAX_DELL JC64 00125A 1 O 11 KEY MENU JC64 00122A 1 O 12 KEY TEL_DELL JC64 00124A 1 O 13 RUBBER SCROLL_DELL JC73 00176A 1 O 14 RUBBER TEL FAX_DELL JC73 00177A 1 O 15 RUBBER COPY_DE...

Page 132: ...ed View Parts List 8 12 8 5 Scanner Assembly 0 1 1 4 1 1 1 2 1 3 1 3 1 1 3 2 1 3 4 1 3 3 2 2 13 2 14 2 1 2 5 2 2 2 3 2 15 1 2 15 4 2 15 3 2 15 8 2 15 2 2 15 2 15 5 2 15 7 2 15 6 2 4 2 10 2 8 2 12 2 11 2 16 2 13 2 6 2 7 2 9 ...

Page 133: ...ER GLASS JB70 00148A 2 O 2 ELA HOU SCAN LOWER JC96 03068A 1 O 2 1 COVER SCAN LOWER DELL JC63 00379A 1 X 2 2 ELA HOU CCD MODULE JC96 02759A 1 O 2 3 CBF SIGNAL CCD FFC JC39 00269A 1 O 2 4 ICT INSERT SHAFT JB70 00154A 1 X 2 5 ICT SHAFT CCD JB70 00145A 1 X 2 6 PMO HOLDER BELT JB72 00764A 1 X 2 7 PMO PULLEY JB72 00763A 1 X 2 8 ELA UNIT CORE JB96 01381A 3 X 2 9 SPRING ETC BELT JB61 00059A 1 X 2 10 BELT ...

Page 134: ...sembly Parts List SA Service Available O Service available X Service not available No Description SEC Code Q ty SA Remark 0 MEA UNIT COVER MIDDLE JC97 01932A 1 O 1 COVER MIDDLE R2 JC63 00385A 1 X 2 COVER REAR UPPER JC63 00388A 1 X 3 COVER STACKEP RX JC63 00513A 1 X 4 BUSH F DOWN R2 JC61 00902A 1 X ...

Page 135: ... 14 58 24 25 43 44 45 47 39 46 17 26 42 71 47 1 46 1 46 2 47 2 47 3 47 4 47 5 45 1 45 2 45 3 40 41 51 5 62 5 5 2 48 4 3 65 25 57 27 27 1 27 2 27 3 57 2 57 1 27 4 27 8 27 9 27 7 27 6 19 1 19 2 27 4 50 7 6 37 36 38 49 49 28 29 30 34 31 32 Transfer Roller 56 23 59 61 63 73 61 65 1 65 4 65 2 65 3 63 2 63 1 20 58 22 ...

Page 136: ...ATOR CVR OPEN JC72 00974A 1 X 15 PMO PLATE GUIDE DEVE_R JC72 00985A 1 X 16 SPRING ETC GUIDE DEVE JC61 70932A 2 X 17 GROUND PUSH BUSHING JC63 00401A 1 X 18 PMO PLATE GUIDE DEVE_L JC72 00984A 1 X 19 PMO ACT FEED R2 JC72 01323A 1 X 20 PMO ACTUATOR EMPTY JC72 00975A 1 O 21 PMO ACT MANUAL R2 JC72 01324A 1 O 22 GROUND EARTH TR R2 JC63 00395A 1 X 23 GROUND TERMINAL TR JC63 00403A 1 X 24 ROLLER FEED ROLLE...

Page 137: ...ROUND DRIVE R2 JC63 00394A 1 X 43 SOLENOID FEED ROCKY2 JC33 00014A 1 O 44 SOLENOID HB MANUAL JC33 00010A 1 O 45 MEA UNIT GEAR PICKUP JC97 01929A 1 O 45 1 GEAR PICK UP B_R2 JC66 00705A 1 X 45 2 GEAR PICK UP A_R2 JC66 00704A 1 X 45 3 SPRING CS 6107 001167 1 X 46 MEA UNIT BRACKET FEED JC97 01925A 1 O 46 1 BRACKET FEED R2 JC61 00913A 1 O 46 2 GEAR Z35 IDLE JC66 00690A 1 X 47 MEA UNIT CLUTCH JC97 01788...

Page 138: ...NAL R2 JC61 00908A 1 X 59 HOLDER ACT MANUAL R2 JC61 00912A 1 X 61 MEC BEARING EXIT JC75 10529A 2 X 62 GEAR EXIT F DOWN JC66 00038A 1 X 63 ROLLER EXIT F DOWN JC66 00378A 1 X 64 RMO RUBBER EXIT JC73 40915A 4 X 65 MEA RACK EXIT ROLLER JC97 01034A 4 O 65 1 PMO HOLDER EXIT ROLL JC72 41006A 1 X 65 2 PMO ROLLER FD F JC72 41007A 1 X 65 3 PMO ROLLER FD R JC72 41008A 1 X 65 4 SPRING ETC EXIT ROLL FD JC61 70...

Page 139: ...Exploded View Parts List Service Manual 8 19 8 8 Fuser Assembly 0 1 31 3 4 5 29 29 37 35 6 17 36 12 14 34 38 37 13 15 32 30 11 16 33 19 18 23 24 25 28 26 27 20 21 36 38 10 7 22 8 9 ...

Page 140: ... 1 X 15 CBF HARNESS FUSER 110V JC39 00353A 1 X WHITE CBF HARNESS FUSER 220V JC39 00354A 1 X BLACK 16 BUSH HR R_R2 JC61 00887A 1 X 17 LABEL P CAUTION HOT_FUSER JC68 30928D 1 X 18 RMO RUBBER_EXIT JC73 00017A 2 X 19 ROLLER M EXIT F UP JC66 00380A 1 X 20 ROLLER PRESSURE JC66 00600B 1 O 21 BEARING PRESSURE R JC66 10901A 2 X 22 SPRING CS 6107 001168 2 X 23 PMO BUSHING TX JC72 00382A 3 X 24 HOLDER ACTUAT...

Page 141: ...Exploded View Parts List Service Manual 8 21 8 9 Cassette Assembly 0 1 8 2 3 4 16 6 7 6 4 6 3 6 2 6 1 5 5 10 11 15 12 13 14 ...

Page 142: ... 00603A 1 X 5 SPRING CS 6107 001166 2 X 6 MEA UNIT HOLDER PAD JC97 01931A 1 O 6 1 HOLDER M PAD JC61 00580A 1 X 6 2 SHEET HOLDER PAD R2 JC63 00407A 1 X 6 3 RPR FRICTION PAD JC73 00140A 1 X 6 4 IPR PLATE PAD JC70 00314A 1 X 7 SPRING ETC EXIT ROLL FD JC61 70911A 1 X 8 COVER SUB CASSETTE R2 JC63 00368A 1 X 10 PMO PLATE_LOCKER JC72 00972A 1 X 11 SPRING ETC LOCKER PLATE JG61 70531A 1 X 12 ADJUST M CASSE...

Page 143: ...ual 8 23 8 10 SCF Option Cassette Frame Exploded view 0 5 4 2 3 31 15 16 36 34 34 35 24 21 20 22 23 19 18 17 39 39 2 39 1 39 9 39 5 39 4 39 7 39 6 39 3 39 8 28 33 32 25 26 28 27 1 30 37 38 39 10 40 1 3 1 4 41 11 13 10 14 6 9 7 12 8 42 29 ...

Page 144: ...61 00587A 1 X 13 SHAFT P PICK_UP JC66 00399A 1 X 14 PMO IDLE PICK_UP JC72 00982A 2 X 15 ROLLER FEED JC66 00598A 1 X 16 PMO BUSHING TX JC72 00382A 2 X 17 PMO GEAR PICK_UP A JC72 00979A 1 X 18 PMO GEAR PICK_UP B JC72 00980A 1 X 19 SPRING CS 6107 001167 1 X 20 RING CS 6044 000001 1 X 21 CAM M PICK_UP JC66 00377A 1 X 22 SHAFT FEED JC66 00527A 1 X 23 GEAR FEED 2 JC66 00394A 1 X 24 SPRING TS 6107 001170...

Page 145: ...879A 1 X 39 2 BRKT P GEAR SCF JC61 00881A 1 X 39 3 BRKT M FEED SCF JC61 00878A 1 X 39 4 GEAR 61 47 IDLE JC66 00688A 1 X 39 5 GEAR 59 IDLE JC66 00689A 1 X 39 6 GEAR 35 IDLE JC66 00690A 1 X 39 7 GEAR RDCN 57 18 JC66 00389A 1 X 39 8 GEAR IDLE 23 JC66 00396A 1 X 39 9 MOTOR STEP SCF JC31 00009A 1 O 39 10 SCREW MACHINE 6001 000131 5 X 39 11 CORE FERRITE 3301 001635 1 X 39 12 CABLE TIE 6501 000004 1 x 40...

Page 146: ...Service Manual Exploded View Parts List 8 26 MEMO ...

Page 147: ...CIP4 Image Processer AFE I F I O PORT Motor Control DMA Control RTC JBIG Codec CIP 4 AFE FLATEN MOTOR DRIVER TEA3718 X 2EA CCD DRIVING PART USB 2 0 NETWORK ADF UNIT P REGI P DET P POS SENSOR ADF MOTOR DRIVER TEA3718 X 2EA FLAT COVER S ENSOR LCD 16 2 LINES 14P 3P FUSER 2P FAN 2P NETWORK INTERFACE CARD SCF Option BootROM 1MBX2ea or 2MBX2ea MEMORY DIMM Smart DAA CX20493 PS3 PCL6 DIMM SEC SRAM 1 28KBy...

Page 148: ...DF_NA 12 nADF_P_DET 13 nADF_DET 14 nADF_P_REG 16 nADF_P_POS SCF Unit 1 3 3V 2 nSCF_STATUS 3 SCF_CMD 4 SCF_CLK 5 SCF_READY 6 24V 7 8 DGND MAIN MOTOR 1 MA 2 MB 3 MA 4 MB 1 P_EMPT Y 3 4 5V 7 12V 13 MP_EMPTY 15 22 23 N C 17 N C 19 THV_EN 21 MHV_PWM 25 FUSER_ON SMPS HVPS MA IN CL UT CH MP CLUTCH PTL 1 SIGNAL 2 N C 3 4VS 1 24VS 2 SIGNAL 1 5V 2 SIGNAL TONER RX TONER T X CARTRIDGE 1 SIGNAL 2 N C 3 24VS 1 ...

Page 149: ...CHE 16K 2 SDRAM Control ROM Control DMA Control PVC GEU HCT gCOD EC I O I F Engine Control IEEE1284 USB2 0 MAIN MOTOR DRIVER A3977SLR Reset THERM 26P 2P MODEM SFM336 33 6KBP AUDIO Drv 2P 600 DPI COLOR CCD MAIN MOTOR FLATEN MOTOR FAST SRAM 128 KByte CIP4 Image Processer AFE I F I O PORT Motor Control DMA Control RTC JBIG Codec CIP4 AFE FLATEN MOTOR DRIVER TEA3718 X 2EA CCD DRIVING PART USB 2 0 IEEE...

Page 150: ...CCD_PI2 15 CCD_PI1 16 17 20 24 DGND 18 CCD_PI_CP 19 5V 21 CCD_HOME 22 24V 23 INV_POWER CCD MODULE FLATEN MOTOR 1 MA 2 MB 3 MA 4 MB ADF MOTOR DRIVER SENSOR P_POS P_PEG P_DET ADF MOTOR 1 MA 2 MB 3 MA 4 MB 1 4 11 15 DGND 2 24V 3 5V 5 ADF_NA 6 ADF_PHB 7 ADF_PHA 8 ADF_B 9 ADF_NA 10 ADF_NA 12 nADF_P_DET 13 nADF_DET 14 nADF_P_REG 16 nADF_P_POS SCF Unit 1 3 3V 2 nSCF_STATUS 3 SCF_CMD 4 SCF_CLK 5 SCF_READY...

Page 151: ...ing Scan Buffer in Scanning ECM Buffer in FAX receiving and System Working Memory Area size 32MB 32Mbyte Basic TBD MB System Working Memory Area and Scan Buffer TBD MB FAX Memory Receive Area TBD MB Printing System Working Memory Area Max Frequency 133MHz store Fax Receive Memory Data by using Battery MAIN CONTROLLER CPU DMAC SRAM SRAM ANALOG FRONT END DATA MEMORY IMAGE SENSOR CIP4 data bus addres...

Page 152: ...y based on Conexant DAA Data Access Arrangement Solution and is roughly composed of two kinds Chip Solution CX82500 SFM336 Existing Modem Chip which adds SSD System Side Device for interfacing between LSD and DIB of FM336Plus Core CX20493 LSD LIU Line Interface Unit Chip which is controlled by SSD and satisfies each PSTN requirements by modulating internal Configuration with connecting Tel Line ...

Page 153: ...and generation Flag detection 0 bit deletion ITU CRC 16 or CRC 32 check sum error detection FSK flag pattern detection during high speed receiving Tone modes and features Programmable single or dual tone generation DTMF receiver Tone detection with three programmable tone detectors Receive dynamic range 0 dBm to 43 dBm for V 17 V 33 V 29 V 27 ter and V 21 Channel 2 Programmable transmit level 9 to...

Page 154: ...o LSD by Coil Turns Ratio 1 1 16 11 2 1 3 Clock Clock is supplied by transformer from SSD to LSD and There is PWROUT to adjust output impedance of Clock Out Driver is inside SSD and CLKSHIGH Registor to adjust duty of HLPWR Registor and Clcok Clock from SSD to LSD has Differential structure of 180 phase difference for Noise Robustness DIB Data transfer Data From SSD to LSD By Capacitor and also tr...

Page 155: ...onfirmation Reports for Send Upon successful transmission Upon failure Reduced image of first page except OHD and partial page for complexity of the images Customer On Off selectable 13 Management Reports System Data List Image TCR for Memory TX 14 TTI RTI TTI Transmit Terminal Identification printed at top of Fax Image RTI Receiver Terminal Identification printed at bottom of Fax Image the Transm...

Page 156: ...1 4 ON HOOK state Characteristic 1 DC Resistance DP Dial Mode Direct Current 30mA 50 300ohm DTMF Dial Mode Direct Current 20mA 50 540ohm 2 Ring Sensitivity Ring detection Voltage 40Vrms 150Vrms condition Current 25mA Frequency 15Hz product Margin 30Vrms 150Vrms Ring detection Frequency 15 3Hz 68Hz condition Voltage 45Vrms Current 25mA product Margin 15Hz 70Hz Ring detection Current 20mA 100mA cond...

Page 157: ...ess LAT algorithm on Text mode Error Diffusion Algorithm on Mixed mode and store Data at Scan Buffer on PC Scan mode without algorithm on every mode Shading Correction and Gamma Correction are executed ahead then processing is executed later Scan Image Control Specification Minimum Scan Line Time 0 72ms Scan Resolution Max 600DPI Scan Width 216mm main function Internal 12bit ADC White Shading Corr...

Page 158: ...ble2 Table1 Table3 Table4 Line Bufter CPU IRQ Ctrl I O Register Tex DMA Interface Sensor Interface Image Engancement Enlargement Reduction Motor Control Vpeak Control Gamma Control Shading Acquistion Correction Analog Front End Image Sensor Internal Core Internal SRAM External Circuit Table1 Gamma Table Table2 IEM Table Table3 Binary Table Table4 Motor Table Extermal RAM Control Binarization MAIN ...

Page 159: ...ium II 233MHz 64MB RAM 120MB free disk space 14 Registration Position for Original Platen Rear Left Corner when facing front operator panel ADF Center 15 Number of Copes 2 digits 99 maximum for LCD display and reports 11 3 3 Ope Pannel Section 1 Configuration operation Panel uses Main Control and separated Ope Chip Micom and work as inner program systemic operation is serial system which exchange ...

Page 160: ... of the circuits of the motor paper feed pass driving clutch driving pre transfer lamp driving current driving and fan driving The signals from the paper feed jam sensor and paper empty sensor are directly inputted to the main board 1 Printing Method Laser based Electrophotography 2 Supported Operating Systems Windows 98 2000 NT4 0 ME XP MAC English only no status monitor web download only 3 Emula...

Page 161: ...c Execution Unit for banding support of Printer Languages Printer Video Controller for LBP engines PVC Printer Video Controller without RET Algorithm HPVC Printer Video Controller with RET algorithm Line Memory Lookup Table Memory 512 x 8 4096 x 16 Engine Controller Motor Control Unit Motor Speed Lookup Table Memory 128 x 16 x 2 Pulse Width Modulation Unit 4 Channels are supported ADC Interface Un...

Page 162: ...s AHB Bus System Bus SYSTEM BUS ARBITER SYSTEM PLL 120MHz CLOCK RESET GENERATOR SDRAM CONTROLLER 5CH GRAPHIC EXECUTION UNIT ROTATOR SCALER HALFTONER 1024x8 256x8x4 EPI MISC CONTROLLER PARALLEL PORT INTERFACE HCT ENGINE CONTROLLER UART 3CH gCODEC TIME CONTROL UNIT INTERRUPT CTRL 5CH ENGINE Comm I F ADC 3CH MOTOR CONTROLLER 128x16x2 PULSE WIDTH MODULATOR HPVC 512x8 4096x16 PVC LSU I F SFR BUS INTERF...

Page 163: ...Plain Label Cardstock Transparency 7 Copy Speed Platen SDMP 22cpm Letter SDMP Single Document ADF SDMP 22cpm Letter Multiple Printout ADF MDSP 7cpm Letter Text or Mixed 4cpm Letter Photo MDSP Multiple Document Single Printout 8 Reduce Enlarge Platen 25 400 1 increments ADF 25 100 1 increments 9 Non printable Area 4 mm Top Bottom and each Side 10 Copy Count 1 to 99 Page count displayed on LCD durin...

Page 164: ...V MHV BIAS and the outputted high voltage is supplied to the toner OPC cartridge and transfer roller 11 7 1 HVPS High Voltage Power Supply Transfer High Voltage THV Input Voltage 24 V DC 15 Output Voltage MAX 5 0KV 5 Duty Variable no loading 1 2KV 15 when cleaning 200 Output Voltage Trigger 6 5 Input contrast of the Voltage stability degree under 5 fluctuating input 21 6V 26 4V Loading contrast 5 ...

Page 165: ...is no Feedback control Developing Voltage DEV Input Voltage 24 V DC 15 Output Voltage 200V 600V DC 20 V Output Voltage Fluctuation range PWM Control Input contrast of the output stability degree 5 or less Loading contrast 5 or less Output Voltage Rising Time 50 ms Max Output Voltage Falling Time 50 ms Max Output Loading range 10M 1000 M Output Control Signal BIAS PWM the CPU output is HV output wh...

Page 166: ...V AC 220V EXP version Input Voltage fluctuating range AC 198V 264V AC 90V 135V AC 198V 264V Rated Frequency 50 60 Hz Frequency Fluctuating range 47 63 Hz Input Current Under 5 0Arms 2 5Arms But the status when lamp is off or rated voltage is inputted outputted Rated Output Power NO ITEM CH2 CH3 Remark 1 CHANNEL NAME 5V 24 0V 2 CONNECTOR PIN CON 3 CON 3 5V PIN 8 24V PIN 11 12 13 GND PIN 7 GND PIN 9...

Page 167: ...onditions Rising Time within 2Sec Falling Time over 20ms Surge Ring Wave 6KV 500A Normal Common Environment Condition Operating temperature range 0 40 Maintaining temperature range 25 85 Preserving Humidity Condition 30 90 RH Operating atmospheric pressure range 1atm EMI Requirement CISPR FCC CE MIC C Tick Safety Requrement IEC950 UL1950 CSA950 C UL NOM TUV Semko Nemko iK CB CCC CCIB GOST EPA Powe...

Page 168: ...TER ON signal is turned on at engine the LED of PC1 Photo Triac takes the voltage and flashes From the flashing light the Triac part light receiving part takes the voltage and the voltage is supplied to the gate of Triac and flows into the Triac As a result the AC current flows in the heat lamp and heat is occurred On the other hand when the signal is off the PC1 is off the voltage is cut off at t...

Page 169: ...Schematic Diagram Service Manual 12 1 This Document can not be used without Samsung s authorization 12 12 12 Schematic Diagrams 12 1 Dell Schematic Main 1 17 ...

Page 170: ...Schematic Diagram Service Manual 12 2 This Document can not be used without Samsung s authorization Dell Schematic Main 2 17 ...

Page 171: ...Schematic Diagram Service Manual 12 3 This Document can not be used without Samsung s authorization Dell Schematic Main 3 17 ...

Page 172: ...Schematic Diagram Service Manual 12 4 This Document can not be used without Samsung s authorization Dell Schematic Main 4 17 ...

Page 173: ...Schematic Diagram Service Manual 12 5 This Document can not be used without Samsung s authorization Dell Schematic Main 5 17 ...

Page 174: ...Schematic Diagram Service Manual 12 6 This Document can not be used without Samsung s authorization Dell Schematic Main 6 17 ...

Page 175: ...Schematic Diagram Service Manual 12 7 This Document can not be used without Samsung s authorization Dell Schematic Main 7 17 ...

Page 176: ...Schematic Diagram Service Manual 12 8 This Document can not be used without Samsung s authorization Dell Schematic Main 8 17 ...

Page 177: ...Schematic Diagram Service Manual 12 9 This Document can not be used without Samsung s authorization Dell Schematic Main 9 17 ...

Page 178: ...Schematic Diagram Service Manual 12 10 This Document can not be used without Samsung s authorization Dell Schematic Main 10 17 ...

Page 179: ...Schematic Diagram Service Manual 12 11 This Document can not be used without Samsung s authorization Dell Schematic Main 11 17 ...

Page 180: ...Schematic Diagram Service Manual 12 12 This Document can not be used without Samsung s authorization Dell Schematic Main 12 17 ...

Page 181: ...Schematic Diagram Service Manual 12 13 This Document can not be used without Samsung s authorization Dell Schematic Main 13 17 ...

Page 182: ...Schematic Diagram Service Manual 12 14 This Document can not be used without Samsung s authorization Dell Schematic Main 14 17 ...

Page 183: ...Schematic Diagram Service Manual 12 15 This Document can not be used without Samsung s authorization Dell Schematic Main 15 17 ...

Page 184: ...Schematic Diagram Service Manual 12 16 This Document can not be used without Samsung s authorization Dell Schematic Main 16 17 ...

Page 185: ...Schematic Diagram Service Manual 12 17 This Document can not be used without Samsung s authorization Dell Schematic Main 17 17 ...

Page 186: ... C12 472MAA R1 1 2W 560K C4 224 LF2 CH925130 AR1 DSS 601M PC101 B 817M B C14 333 D6 UF4007 B1 R3 1W68K R9 W W 1N 0 33 SPA07N60C3 Q1 D7 1N4148 C7 35V 47uF R8 N U R10 22 R6 1 4W 33 J R129 1 2W 3 3K R106 1 2W 3 3K R104 1 2W 3 3K R112 2 6K F R130 1 2W 3 3K R105 1 2W 3 3K R113 1 2W 3 3K R103 1 2W 3 3K C102 NXB 35V 1500uF C109 10V 470uF R102 1 2W 3 3K C105 50V 1uF C107 NXB 10V 1500uF R131 1 2W 3 3K R107...

Page 187: ...2 472MAA R1 1 2W 560K C4 224 LF2 CH925130 AR1 DSS 601M PC101 B 817M B C14 333 D6 UF4007 B1 R3 1W68K R9 W W 1N 0 33 SPA07N60C3 Q1 D7 1N4148 C7 35V 47uF R8 N U R10 22 R6 1 4W 33 J R129 1 2W 3 3K R106 1 2W 3 3K R104 1 2W 3 3K R112 2 6K F R130 1 2W 3 3K R105 1 2W 3 3K R113 1 2W 3 3K R103 1 2W 3 3K C102 NXB 35V 1500uF C109 10V 470uF R102 1 2W 3 3K C105 50V 1uF C107 NXB 10V 1500uF R131 1 2W 3 3K R107 1 ...

Page 188: ...2 472MAA R1 1 2W 560K C4 224 LF2 CH925130 AR1 DSS 601M PC101 B 817M B C14 333 D6 UF4007 B1 R3 1W68K R9 W W 1N 0 33 SPA07N60C3 Q1 D7 1N4148 C7 35V 47uF R8 N U R10 22 R6 1 4W 33 J R129 1 2W 3 3K R106 1 2W 3 3K R104 1 2W 3 3K R112 2 6K F R130 1 2W 3 3K R105 1 2W 3 3K R113 1 2W 3 3K R103 1 2W 3 3K C102 NXB 35V 1500uF C109 10V 470uF R102 1 2W 3 3K C105 50V 1uF C107 NXB 10V 1500uF R131 1 2W 3 3K R107 1 ...

Page 189: ...Schematic Diagram Service Manual 12 21 This Document can not be used without Samsung s authorization 12 3 Dell Schematic LIU ...

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