Samsung SF-3100 free download

File name BLOCK DIAGRAM.pdf

Schematic Diagrams 7. Schematic Diagrams 7-1. Block Diagram Samsung Electronics 71 Schematic Diagrams 7-2. Connection Diagram 7-2 Samsung Electronics Schematic Diagrams 7-3. Main Circuit Diagram (1/4) Samsung Electronics 73 Schematic Diagrams 7-4. Main Circuit Diagram 2/4) 7-4 Samsung Electronics Schematic Diagrams 7-5. Main Circuit Diagram (3/4) Samsung Electronics 75 Schematic Diagrams 7-6. Main Circuit Diagram (4/4) 7-6 Samsung Electronics Schematic Diagrams 7-7. LIU Circuit Diagram Samsung Electronics 77 Schematic Diagrams 7-8. OPE. Circuit Diagram 1 2 3 4 5 6 7 * Unused A A Only used for SF3100T ANSWER B B * Unused D0 D1 D2 D3 D4 D6 D6 D0 D1 D2 D3 Samsung Electronics Co., Ltd. D4 * Unused * Unused * Unused All Rights reserved. C C HT48C50 D Only used for SF3100T D Only used for SF3100T E D D A T E S I G N 1 E D W G E N G C H K A P P SF-3100/SF-3100T/SF-3100P OPE CIRCUIT DIAGRAM (JB92-01045A) REF NO 1 002 - 010005AF 2 3 4 SEC 1 7-8 Samsung Electronics Schematic Diagrams 7-9. TAD Circuit Diagram Samsung Electronics 79 Schematic Diagrams 7-10. CR Circuit Diagram 7-10 Samsung Electronics

File name COVER.pdf

SAMSUNG FACSIMILE SF-3100/SF-3100T SERVICE FACSIMILE Manual CONTENTS 1. Precautions 2. Specifications 3. Disassembly 4. Service Mode & Troubleshooting 5. Exploded Views 6. Electrical Parts Lists 7. Block Diagrama ELECTRONICS © Samsung Electronics Co.,Ltd. AUGUS 1999 T Printed in Korea. VERSION NO. : 0.1 P/N:JB68-00204A

File name DISASSEMPLY.pdf

3. Disassembly and Reassembly 3-1. General Precautions on Disassembly When disassemble and reassembling components, use extreme caution. The close proximity of cables to moving parts makes proper routing a must. If components are removed or replaced, any cables disturbed by the procedure must be replaced as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected. Whenever servicing the machine, you must perform the following: 1. Check that documents are not stored in memory. 2. Remove the print cartridge. 3. Unplug the power cord. 4. Work on a flat and clean surface. 5. Replace only with authorized components. 6. Do not force plastic components. 7. Make sure all components are in their proper position. 3-2. White Roller 1. Lift the control panel. 2. Push the white clip on each end of the roller slightly inward, then rotate it until it reaches the slot, as shown below. Then lift the roller out. Note : Check the roller for dirt. If dirty, wipe it off with soft cloth dampened with water. If the roller is heavily worn, replace it with a new one. B White roller Control panel A White clip Samsung Electronics 3-1 Disassembly 3-3. Rear Cover 1. Holding the paper guide, move it in the direction of arrow. 3. Holding the rear cover ass'y, take it out by rotating it to release properly. Paper guide 4. Remove the Rom cover. 2. Remove the five screws, as shown below. ROM Cover 3-2 Samsung Electronics Disassembly 3-4. Top Cover and Speaker 1. Before you disassemble the top cover, you should remove: ­ Rom Cover (see page 3-2) ­ Rear Cover (see page 3-2) 2. Release the tie stopper supporting the control panel. 4. If you want to remove the speaker, turn the top cover over, and remove the two screws securing it. Tie stopper 3. Remove the two screws and hit part"a","b" with hand slightly for opening the cover. b a Samsung Electronics 3-3 Disassembly 3-5. Scan Motor 1. Before disassembling the scan motor, you should remove: ­ Rom Cover (see page 3-2) ­ Rear Cover (see page 3-2) ­ Top Cover (see page 3-3) 2. Remove the ground screw securing the motor to the motor bracket. 3-4 Samsung Electronics Disassembly 3-6. ADF Roller and Contact Image Sensor (CIS) 1. Before disassembling the roller and CIS, you should remove: ­ Rom Cover (see page 3-2) ­ Rear Cover (see page 3-2) ­ Top Cover (see page 3-3) 4. Unplug the CIS harness, then remove the CIS ass'y. To remove the CIS ass'y, turn it up and slide the two legs far left, and pull it up. 2. Remove the Scan motor bracket. 3. Remove the ADF roller. When you assemble the roller, make sure it is properly hooked. 5. Remove the CIS from the bracket. CIS Note : Clean the surface of the roller with ethyl alcohol. After wiping it, you must dry it completely. Note: Check the glassy surface of the CIS for stains or scratches. If stained, wipe off with ethyl alcohol. If it is heavily scratched, replace it with a new on

File name PRECAUTIONS.pdf

1. Precautions Follow these safety, ESD, and servicing precautions to prevent personal injury and equipment damage. 1-1. Safety Precautions 1. Be sure that all built-in protective devices are in place. Restore any missing protective shields. 2. Make sure there are no cabinet openings through which people- particularly children- might insert fingers or objects and contact dangerous voltages. 3. When re-installing chassis and assemblies, be sure to restore all protective devices, including control knobs and compartment covers. 4. Design Alteration Warning: Never alter or add to the mechanical or electrical design of this equipment, such as auxiliary connectors, etc. Such alterations and modifications will void the manufacturer's warranty. 5. Components, parts, and wiring that appear to have overheated or are otherwise damaged should be replaced with parts which meet the original specifications. Always determine the cause of damage or overheating, and correct any potential hazards. 6. Observe the original lead dress, especially near sharp edges, AC, and high voltage power supplies. Always inspect for pinched, out-ofplace, or frayed wiring. Do not change the spacing between components and the printed circuit board. 7. Product Safety Notice: Some electrical and mechanical parts have special safety-related characteristics which might not be obvious from visual inspection. These safety features and the protection they provide could be lost if a replacement component differs from the original. This holds true, even though the replacement may be rated for higher voltage, wattage, etc. Components critical for safety are indicated in the parts list with symbols . Use only replacement components that have the same ratings, especially for flame resistance and dielectric specifications. A replacement part that does not have the same safety characteristics as the original may create shock, fire, or other safety hazards. Samsung Electronics 1-1 Precautions 1-2. 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. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 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 damage ESDs. 6. Do not remove a replacement ESD from its protective packaging until immediately before installing it. Most replacement ESDs are packaged with all leads shorted together by conductive foam,

File name SERVICE MODE TROUBLESHOOTING.pdf

4. Service Mode & Troubleshooting 4-1. Service Mode 4-1-1. How to Enter Service Mode In service mode, the technician can check the machine and perform various tests to isolate the cause of a malfunction. To enter Service mode , press SETUP, #, 1, 9, 3, 4 in sequence , and LCD briefly displays " " between DATE and TIME to indicate that the machine has entered Service Mode. While in Service Mode, the machine still performs all normal operations. To return to normal User Mode, press SETUP,#,1,9,3,4 in sequence again, or turn the power off, then on by momentarily unplugging the power cord Options changed while in Service mode do not remain change unless you clear the machine memory. To communicate via direct connection with another fax machine, press OHD/V.REQ followed by START. 4-1-2. Changing Options . Selectable Options OPTION LANGUAGE SENDING CONFIRM FAX PAPER SIZE AUTO REDUCTION DISCARD SIZE RINGS TO ANSWER RCV. START CODE DRPD MODE ECM MODE PRINT QUALITY INK SAVE CALLER ID AUTO JOURNAL MULTIPLE ID SELECTION DEFAULT REMARK USER MODE OPTIONS(SYSTEM SETUP) [ON/OFF/ERROR] [LETTER/A4/LEGAL] [ON/OFF] [00-30] [1-7] [0-9] [ON/OFF/SET] [ON/OFF] [LQ/DRAFT] [OFF/MEDIUM/MAX] [ON/OFF] [ON/OFF] [ON/OFF] ENGLISH ERROR A4 ON 15mm 2 *9* OFF ON LQ MEDIUM OFF ON OFF USER MODE OPTIONS(TAM SETUP) CHARGE SAVE CALL TRANSFER CALL MONITOR RECORDING TIME REMOTE PASSWORD BATTERY ALARM SILENCE CHECK HOWLER Samsung Electronics [ON/OFF] [ON/OFF] [ON/OFF] [OFF/30SEC/60SEC/90SEC] [000-999] [ON/OFF] [RECEIVE/RECORD/DISCONNECT [ON/OFF] OFF OFF ON 60 SEC #139# ON DISCONNECT ON SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY 4-1 Service Mode OPTION MODEM SPEED SEND FAX LEVEL RCV. FAX LEVEL FLASH TIME PAUSE TIME ERROR RATE SILENCE TYPE SILENCE OE LEVEL SILENCE DROP _T. RING ON TIME RING OFF TIME MF LEVEL (HIGH) MF LEVEL (LOW) ADIUST CENTER SILENCE LEVEL SELECTION I[2.4/4.8/7.2/9.6/12.0/14.4] [00/15] [43/48] [00/99] [1/9] [00/99] [UNLIMITED/12 SEC] [20/48] [00/99] [00/99] [00/99] [00/99] [00/99] [00/99]REF=50 [20-48] DEFAULT 14.4KBPS -12 dBM -48 dBM 80 MS 4 SEC 150 MS UNLIMITED -36 dBM 200 MS 150 MS 800 MS -9 dBM -11 dBM (50) 0 MM -36 dBM REMARK SERVICE MODE OPTION(SYSTEM MODE) SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY . Service Mode Options MODEM SPEED Slect an baud rate of 14.4 K, 12.0 K, 9600, 7200, 4800, or 2400 bps. The lower the baud rate, the larger the acceptable error rate. T30 protocol has a fixed speed of 300 bps in protocol mode. When the TX speed is set to 9600 or 7200 bps, the RX speed will be either V.29 or V.27 ter. When the TX speed is set to 4800 or 2400 bps, the RX speed will V.27 ter. FLASH TIME Choose flash time from 00 through 99 X10 msec. PAUSE TIME Choose dial pause time from 1 through 9 seconds. SEND FAX LEVEL The FCC requires that transmission level be less than -9 dBm. From -9 dBm to -15 dBm is acceptable. You can set the transmission level to between 0 and -15 dBm in 1dB

File name SF-3100I_XEU.GB032.E.12.pdf

Electrical Parts List 6. Electrical Parts Lists 6-1. Main Engine PBA(SF-3100) SEC CODE 0401-000116 0401-000116 0401-000116 0402-000132 0403-000286 0403-000525 0404-000109 0407-000116 0407-000116 0501-000457 0501-000457 0503-000135 0506-000182 0506-001019 0604-001033 1001-000170 1001-000171 1003-001252 1107-001121 1109-001035 1201-000114 1201-000178 1201-000423 1201-000423 1203-000495 1203-001334 1205-001134 2001-000202 2001-000202 2007-000023 2007-000026 2007-000026 2007-000026 2007-000027 2007-000028 2007-000028 2007-000028 2007-000028 2007-000028 2007-000028 2007-000028 2007-000028 2007-000028 2007-000028 2007-000028 2007-000028 2007-000028 2007-000029 2007-000221 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 2007-000300 LOCATION NO. Q'ty D10 D5 D6 D9 ZD3 ZD1 D8 D3 D4 Q1 Q5 Q4 U10 U12 U13 U14 U7 U2 U3 U4 U9 U16 U6 U8 U11 U15 U5 R5 R6 R114 R153 R156 R157 R8 R106 R116 R148 R150 R151 R158 R159 R160 R182 R183 R184 R187 R188 R192 R39 R137 R138 R172 R178 R179 R195 R204 R207 R21 R22 R45 R47 R68 R77 R86 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 DESCRIPTION DIODE-SWITCHING "MMSD914T1,100V,200mA,225mW,4nS" DIODE-SWITCHING "MMSD914T1,100V,200mA,225mW,4nS" DIODE-SWITCHING "MMSD914T1,100V,200mA,225mW,4nS" DIODE-RECTIFIER "1N4004,400V,1A,DO-41,TP" DIODE-ZENER "MMBZ5249BL,19V,5%,225mW,SOT-23" DIODE-ZENER "1N4733A,5.1V,5%,1W,DO-41,TP" DIODE-SCHOTTKY "BAT47,20V,350mA,DO-35,TP" DIODE-ARRAY "DAP202K,80V,100mA,CK2-3,SOT-23" DIODE-ARRAY "DAP202K,80V,100mA,CK2-3,SOT-23" TR-SMALL SIGNAL "MMBT2222A,NPN,225mW,SOT-23,TP," TR-SMALL SIGNAL "MMBT2222A,NPN,225mW,SOT-23,TP," TR-DARLINGTON "TIP127,PNP,2W,TO-220AB,ST,1000" TR-ARRAY "ULN2003L,NPN,7,1W,SOP-16,ST,10" TR-ARRAY "STA471A,NPN,4,4W,SIP-10,ST,200" PHOTO-INTERRUPTER"TR,-,150mW,DIP-4,ST" IC-ANALOG SWITCH "MC14051BD,SPDT CMOS,SOP,16P,15" IC-ANALOG SWITCH "MC14053BD,SPDT CMOS,SOP,16P,15" IC-MOTOR DRIVER "LB1945H,HSOP,28P,400MIL,DOUBLE,1A,TP,30V,-" IC-FLASH MEMORY "29F800,512Kx16BIT,TSOP,48P,720" IC-AUDIO RAM "6161,1Mx16BIT,SOP,42P,400MIL,6" IC-AUDIO AMP "386,SOP,8P,150MIL,SINGLE,26V/m" IC-OP AMP "82,SOP,8P,150MIL,DUAL,150V/mV," IC-OP AMP "4558,SOP,8P,150MIL,DUAL,20V/mV" IC-OP AMP "4558,SOP,8P,150MIL,DUAL,20V/mV" IC-RESET "7045,T0-92,3P,-,PLASTIC,4.3/4." IC-POSI.FIXED REG. "033,TO-252,3P,6.5MIL,PLASTIC,3" IC-MODEM "KS16117Q,QFP,100P,-,PLASTIC,5V" R-CARBON "0.5OHM,5%,1/2W,AA,TP,3.3X9MM" R-CARBON "0.5OHM,5%,1/2W,AA,TP,3.3X9MM" R-CHIP "120OHM,5%,1/10W,DA,TP,2012" R-CHIP "200OHM,5%,1/10W,DA,TP,2012" R-CHIP "200OHM,5%,1/10W,DA,TP,2012" R-CHIP "200OHM,5%,1/10W,DA,TP,2012" R-CHIP "300KOHM,5%,1/10W,DA,TP,2012" R-CHIP "39OHM,5%,1/10W,DA,TP,2012" R-CHIP "39OHM,5%,1/10W,DA,TP,2012" R-CHIP "39OHM,5%,1/10W,DA,TP,2012" R-CHIP "39OHM,5%,1/10W,DA,TP,2012" R-CHIP "39OHM,5%,1/10W,DA,TP,2012" R-CHIP "39OHM,5%,1/10W,DA,TP,2012" R-CHIP "

File name SF3100_APPENDIX.pdf

Exploded Views 5. Exploded Views 5-1. Main Assembly 5-2. OPE Unit Assembly 5-3. Handset Unit Assembly 5-4. Engine Unit Assembly 5-5. Base Unit Assembly Samsung Electronics 5-1 Exploded Views 5-1. Main Assembly 8 16 9 10 7-2 7 7-1 6-1 6 6-2 6-4 6-3 1 12 13 11 5 15 3-1 4 14 3-2 2 5-2 Samsung Electronics Exploded Views Main Assembly Parts Lists Location No. 1 2 3-1 3-2 4 5 6 6-1 6-2 6-3 6-4 7 7-1 7-2 8 9 10 11 12 13 14 15 16 Description ELA UNIT-COVER TOP SCREW-TAPTITE SPEAKER 8ohm IPR-UNIT FIXING BRACKET HOOK KNOB PMO-COVER TOP DOC COVER ASS'Y PMO COVER DOC PMO-GUIDE DOC L PMO-GUIDE DOC R GEAR-PINION MEC-CHUTE PMO-CHUTE(1) PMO-CHUTE(2) PMO-COVER REAR PRINT HEAD INK-MONO ELA UNIT-ENGINE ELA UNIT-OPE(TAD) ELA UNIT-OPE MEA ETC-ROLLER WHITE ELA UNIT-BASE EMC-STACKER TX ELA HOU-HANDSET PMO-COVER ROM SEC. Code JB96-01042A * * * JB72-00121A * * * * * * JB75-00068A * * JB72-00138A JB47-30506B JB96-01033A JB96-01052A JB96-01036A JB97-01207A * JB70-00043A JB96-01043A JB72-00139A Q'ty A/S 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Y N N N Y N N N N N N Y N N Y Y Y Y Y Y N Y Y Y SF-3100T SF-3100I Remark Samsung Electronics 5-3 Exploded Views 5-2. OPE Unit Assembly 0 5 4 7 10 9 12 11 15 17 18-2 18-3 18-1 6 11 14 8 16 18 13 3 1 1 1 23 24 19 2 2 21 20 22 2 2 27 25 5-4 Samsung Electronics Exploded Views OPE Unit Assembly Parts Lists Location No. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 18-1 18-2 18-3 19 20 21 22 23 24 25 26 27 Description ELA UNIT-OPE(TAD) ELA UNIT-OPE SCREW-TAPTITE SCREW-TAPTITE PMO-MIC ADAPTER PMO-KEY TEL PMO-KEY FUNCTION PMO-KEY COPY PMO-KEY START PMO-KEY STOP PMO-COVER OPE A PMO-KEY ONETOUCH PMO-KEY RESOLUTION PMO-KEY TAD PMO-COVER OPEB TAD PMO-COVER OPEB PMO-KEY ANSWER RMO-CONTACT RUBBER MAIN RMO-CONTACT RUBBER SUB RMO-CONTACT RUBBER TAD ELA UNIT-OPE BASIC(HW) ELA UNIT-OPE BASIC(HW) PBA MAIN-OPE(TAD) PBA MAIN-OPE DISPLAY LCD CBF HARNESS-LCD PMO-LEVER SENSOR DOC PMO-FRAME SCAN UPPER PMO-LEVER SENSOR SCAN MEC-ANTISTATIC BRUSH ICT-SPRING COIL PMO-SUPPORT ADF PMO-HOLDER RUBBER PMO-TIE STOPPER RPR-RUBBER ADF SEC. Code JB96-01053A JB96-01036A 6003-000193 6003-000259 GB72-40770A JB72-00100A JB72-00101A JB72-00102A JB72-00107A JB72-00108A * JB72-00111A JB72-00112A JB72-00113A JB72-00117A JB72-00110A JB72-41275A JB73-00005A JB73-00006A JB73-00007A JB96-01070A JB96-01069A * * * * * JB72-00115A * * * * * * * Q'ty A/S 1 1 3 4 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Y Y Y Y Y Y Y Y Y Y N Y Y Y Y Y Y Y Y Y Y Y N N N N N Y N N N N N N N SF-3100T SF-3100I SF-3100T SF-3100I SF-3100T SF-3100T SF-3100 SF-3100T SF-3100T Remark SF-3100T SF-3100I Samsung Electronics 5-5 Exploded Views and 5-3. Handset Unit Assembly 1 4 8 2 3 10 7 6 5 9 5-6 Samsung Electronics Exploded Views Handset Unit Assembly Parts Lists Location No. 1 2 3 4 5 6 7 8 9 10 RING-OPE IPR-WEIGHT BALANCE PMO-HANDSET UPPER PMO-HANDSET LOWER RMO-RUBBER MIC PBA SUB ETC-MIC AUDIO-RECEIVER CBF HARNESS-JACK IPR-WEIGHT BALANCE Desc

File name SPECIFICATIONS.pdf

Specification 2. Specification GENERAL Type of Unit Power Source Power Consumption Emvironment Deskop 220~240V ,50~60Hz 10.1W, Sleep mode 6.9W, Max 20W Temperature 10~35°C Humidity 8~80% RH Unit Capacity Application Circuit Standard Recomendation Communication Mode Effective Scanning Width Scanning Method Recording Paper Size Effective Recording Width Recording Method ADF Paper Capacity Resolution Gray Scale Contrast Memory Modem Speed Transmission Speed Back Up Battery Power Supply Insulation Resistance Dimension (W x D x H mm) 6,120 Pages(170 page/month) PSTN or behind PABX ITU Group 3 Half-Duplex A4 (210 mm) CIS A4, Letter, Legal 8 inch (203.2 mm) Thermal Ink-Jet 15 sheets (based on A4 /16~24 lbs) 100 sheets (based on A4, 20 lbs) Standard/Fine/Super Fine(200 X 400 dpi) 64 levels Normal/Lighten/Darken/Photo 1Mbyte for Flash Memory, 2Mbyte for DRAM Max. 14,400 bps 6 seconds (Phase C by ITU 4% Chart/ECM) 3 V Lithum / non-rechargeable Check power label attached near the power cord connection. 50 Mohm or more (typ. 3 G at 500 V) 382 x 310 x 210 mm (including ASF) Samsung Electronics 2-1 Specification Fax Image Transmission Time Data Compress Modem speed Receive Level Output Level 10sec (ITU 4% chart/Memory TX) MH,MR,MMR 14,400bps(Max.) -5~43 dBm Adjustable :0~-15 dBm Initial Setting :-12 dBm Scanner Resolution Depth Mode 200 X200 dpi 8 bits/1bit Mono B/W Text Mono B/W Halftone Scan Line Time 5ms Phone One touch Dial Speed Dial Ringer Volume TAD Others 5 EA 50 EA 4 Step(Usinf S/W control High/Mid/Low/Off Digital TAD(12minute) : Only 3100T Pause Using Redial Key, Time Break Recall, On-hook Dial Last Number Redial Auto Busy Redial LIU Out Band Signal Level : 0 - 4 kHz 4 - 12 kHz 2 kHz or more Input Level Range : Coding Format L 697 770 852 941 -5 ~ -48 dBm H Hz Hz Hz Hz 1209 Hz 1 4 7 * 1336 Hz 2 5 8 0 1477 Hz 3 6 9 # P-20 dBm or less P-40 dBm or less P-60 dBm or less Frequency Tolerance : ± 1.5% 2-2 Samsung Electronics

File name TROUBLESHOOTING.pdf

4-2. Troubleshooting 4-2-1. Overall Troubleshooting Flow START Plug the power cord Power Supply OK? N Y System initialized? N Y RTC OK N Y See 4-2-2 See 4-2-3 See 4-2-12 Load document in Feeder Document fed? N Y Press START Key CIS on? N Y See 4-2-4 See 4-2-5 Y Copy OK? N Call machine from another phone Auto Answer OK ? N Y Y RX OK? N See 4-2-6 See 4-2-7 See 4-2-8 RX OK ? N Y Lift Handset off hook Y Y Dial tone OK ? N TX OK ? N See 4-2-9 See 4-2-10 See 4-2-11 END 4-8 Samsung Electronics Troubleshooting 4-2-2. Check Power Supply START Power cord connected? Y Check AC socketvoltage 220 ~ 240 VAC? Y N Connect as required END N Notify customer Check Power Cord Continuity Y Fuse OK? Y Q1 OK ? Y R4 Short ? Y N N N N END Replace Cord Replace Fuse Replace Q1 Remove short Samsung Electronics 4-9 Troubleshooting . No +5 V START Output Shorted ? N D6 Open or Shorted ? N Check U2 Input voltage Y Remove short Y Replace D6 DC 6 V Y Check U2 ? Y Check CON1-1 END N N Check PCB Pattern Replace U2 . No -5 V START output shorted ? N D7 Open or Shorted ? N Check U3 Input voltage Y Remove short Y Replace D7 -6 VDC Y U3 Output ? Y Check CON1-5 END N N Check PCB Pattern Replace U3 4-10 Samsung Electronics Troubleshooting . No +24 V START output shorted ? N D5 Open or Shorted ? N Check D5 Output voltage Y Remove short Y Replace D5 DC 24V Y Check ZD4 ? Y Check CON1-3 END N N Check PCB Pattern Replace ZD4 Samsung Electronics 4-11 Troubleshooting 4-2-3. System Not Initialized START Check Vcc 4.75V P1-1 (+5) P1-2 (GND5) Y Check U11Pin 3 = "High" N Replace U11 Voltage detector IC N Y See Section 7-2-2 Step motor driving Y Check P2 Harness or OPE PBA OK NG Replace P2 Harness or OPE PBA N NG OK Replace U1 KS32C65100 IC Check 38.00053 MHz Clock U5 Pin68 NG Check 20 MHz Clock U1-188 NG Replace X3 XTAL NG Check 9.5 MHz Clock U14 Pin184 Y Replace U3 Flash Memory OK OK ? Y END N Replace U1 KS32C65100 IC OK ? Y END N A 4-12 Samsung Electronics Troubleshooting A Replace MAIN PBA END Samsung Electronics 4-13 Troubleshooting 4-2-4. Document Not Loading START Insert Document OPE "H" ? U4-3 Y Check 24V P4-5,6 ? Y N Replace D-DET SENSOR N See Section 4-2-2 P4-1,2,3,4 Motor Strobe OK Replace Motor N NG U10-4,5,6,7 Motor Strobe OK Replace U10 NG Replace U1 END 4-14 Samsung Electronics Troubleshooting 4-2-5. CIS LED Not Lit START Load document in feeder Document fed ? Y Press the copy button N See 4-2-4 CIS LED lights Works properly ? N Check +5V,24V from LIU P3-3,P3-7 Y N Normal? Check +5V,+24V from MAIN P2-5 P2-1 Y N Replace the power supply Check CIS CLK from LIU P3-5 Replace CIS Y 500KHz ? N Replace the main b'd END Samsung Electronics 4-15 Troubleshooting 4-2-6. Malfunction on Copy START Load document in feeder Document fed ? N See chart 4-2-4 Y Press the COPY button