Samsung LXB530T Service Manual
Samsung LXB530T Service Manual

Samsung LXB530T Service Manual

Service manual

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SERVICE

COLOR MONITOR

COLOR MONITOR
SyncMaster 330TFT
SyncMaster 530TFT
SyncMaster 331TFT
SyncMaster 531TFT
-
+
Manual
CONTENTS
5. Disassembly & Reassembly
6. Troubleshooting
7. Exploded View & Parts List
8. Block Diagram

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Table of Contents
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Summary of Contents for Samsung LXB530T

  • Page 1: Table Of Contents

    2. Reference Information 3. Product Specifications 4. Operating Instructions 5. Disassembly & Reassembly 6. Troubleshooting 7. Exploded View & Parts List 8. Block Diagram SAMSUNG EXIT MENU 9. Electrical Parts List 10. PCB Diagrams 11. Wiring Diagram 12. Schematic Diagrams...
  • Page 2 Samsung Electronics Co., Ltd. July 1998 Printed in Korea Code No.: BN68-60017A...
  • Page 3: Precautions

    1 Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 1-1-1 Warnings For continued safety, do not attempt to modify the (READING SHOULD circuit board. NOT BE ABOVE 0.5mA) Disconnect the AC power and DC Power Jack before servicing.
  • Page 4: Servicing Precautions

    1 Precautions 1-2 Servicing Precautions WARNING: An electrolytic capacitor installed with the wrong polarity might explode. Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.
  • Page 5: Reference Information

    2 Reference Information 2-1 List of Abbreviations, Symbols and Acronyms 2-1-1 Abbreviations Abbreviation Definition Abbreviation Definition AUTO_MENB AUTO ENABLE (NEG.) OSCOUT1 24MHz CLOCK AUTO_SOG SINK ON GREEN ENABLE PANEL_EN +12V_PANEL/+5V_PANEL ENABLE BL_EN LCD PANEL BACK LIGHT ENABLE PC_BLUE_IN BLUE COLOR SIGNAL FROM PC BRIGHT BRIGHTNESS CONTROL PC_GREEN_IN...
  • Page 6 2 Reference Information 2-1-2 Symbols Hot Ground Cold Ground Provides special safety considerations 2-1-2 Acronyms Acronym Definition Acronym Definition Automatic Brightness Limits Horizontal/Vertical High Voltage Alternating Current Automatic Contrast Limit Input/Output Automatic Frequency Control Integrated Circuit ANSI American National Standards Institute Light Emitting Diode CMOS Complementary Metal Oxide...
  • Page 7: Product Specifications

    3 Product Specifications 3-1 Specifications Item Description LCD Panel TFT-LCD panel, RGB vertical stripe, normaly white, 15-Inch viewable, 0.297 (H) x 0.297 (V) pixel pitch, 13.3-Inch viewable, 0.264 (H) x 0.264 (V) pixel pitch Scanning Frequency Horizontal : 30 kHz to 61 kHz (Automatic) Vertical : 50 Hz to 75 Hz (Automatic) Display Colors...
  • Page 8: Pin Assignments

    3 Product Specifications 3-2 Pin Assignments Sync 15-Pin Signal Cable Connector Type Separate Composite Sync-on-green Pin No. Green Green Green + H/V Sync Blue Blue Blue GND (DDC Return) GND (DDC Return) GND (DDC Return) GND-R GND-R GND-R GND-G GND-G GND-G GND-B GND-B...
  • Page 9: Timing Chart

    3 Product Specifications 3-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. Table 3-1. Timing Chart Mode VESA VGA1/70 Hz VGA2/70 Hz VGA3/60 Hz 640/72 Hz 640/75 Hz 800/56 Hz 800/60 Hz...
  • Page 10 3 Product Specifications Table 3-1. Timing Chart Continued Mode VESA MAC. 800/72 Hz 800/75 Hz 1024/60 Hz 1024/70 Hz 1024/75 Hz 640/67 Hz 832/75 Hz 800 x 600 800 x 600 1024 x 768 1024 x 768 1024 x 768 60 x 480 832 x 624 Timing...
  • Page 11: Operating Instructions

    4 Operating Instructions 4-1 Control and Connectors 4-1-1 SyncMaster 331TFT/531TFT SAMSUNG EXIT MENU Power Port DC 12V Signal Cable Figure 4-2. Rear View EXIT MENU Table 4-1. Front Panel Controls Location Symbol Description Power Button Power Indicator Figure 4-1. Front View and Control...
  • Page 12: Samsung

    4 Operating Instructions 4-1-2 SyncMaster 330TFT/530TFT SAMSUNG EXIT MENU Audio in port AUDIO AUDIO Headphone jack External microphone jack Microphone out port Power port Figure 4-4. Rear View SAMSUNG EXIT MENU Table 4-2. Front Panel Controls Location Symbol Description ON/OFF...
  • Page 13: Microprocessor Controls And Functions

    4 Operating Instructions 4-2 Microprocessor Controls and Functions This monitor has no Òservice onlyÓ micom 4-2-1 OSD Window controls. Should there be a problem with the The adjustable features described below all use microprocessor, replace the entire circuit board. the on-screen menu system. There are, however, user accessible adjustment features that are described below.
  • Page 14: Audio Controls

    Table 4-4. Display Power Management Signaling (DPMS); 13.3” purchase an optional DPMS software program to enable the power saving Power saving function EPA/NUTEK State Normal function. Please contact Samsung or your Operation Stand-By Suspend Mode Power Off Mode dealer for more information.
  • Page 15: Electrical Parts List

    9 Electrical Parts List 9-1 Main PCB Parts Loc. No. Code No. Description Specification Remarks BD101 2703-001334 INDUCTOR-SMD 1.5uH,10%,2x1.25x0.85mm BD102 2703-001334 INDUCTOR-SMD 1.5uH,10%,2x1.25x0.85mm BD103 2703-001334 INDUCTOR-SMD 1.5uH,10%,2x1.25x0.85mm BD104 2703-001334 INDUCTOR-SMD 1.5uH,10%,2x1.25x0.85mm BD105 2703-001334 INDUCTOR-SMD 1.5uH,10%,2x1.25x0.85mm C100 2203-000260 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,2012 C101 2402-000168 C-AL,SMD 100uF,20%,16V,TP,8x6.3...
  • Page 16 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks C140 2203-000260 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,2012 C141 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C142 2203-000844 C-CERAMIC,CHIP 39nF,10%,50V,X7R,TP,2012 C143 2203-000953 C-CERAMIC,CHIP 470pF,5%,50V,NPO,TP,2012 C144 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C145 2203-000260 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,2012 C146 2203-000260 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,2012 C147 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012...
  • Page 17 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks C196 2203-000260 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,2012 C201 2203-000455 C-CERAMIC,CHIP 1nF,5%,50V,NPO,TP,2012 C202 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C203 2203-000455 C-CERAMIC,CHIP 1nF,5%,50V,NPO,TP,2012 C204 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C301 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C302 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C303 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012...
  • Page 18 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks C343 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C344 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C345 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C346 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C347 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C348 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C349 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C350 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012...
  • Page 19 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks C392 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C393 2203-000455 C-CERAMIC,CHIP 1nF,5%,50V,NPO,TP,2012 C394 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C395 2203-000455 C-CERAMIC,CHIP 1nF,5%,50V,NPO,TP,2012 C396 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C397 2203-000455 C-CERAMIC,CHIP 1nF,5%,50V,NPO,TP,2012 C398 2203-000203 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,2012 C401 2203-000260 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,2012...
  • Page 20 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks D105 0401-000191 DIODE-SWITCHING MMBD4148,50V,DL-35,TP D106 0401-000191 DIODE-SWITCHING MMBD4148,50V,DL-35,TP D109 0401-000191 DIODE-SWITCHING MMBD4148,50V,DL-35,TP D110 0401-000191 DIODE-SWITCHING MMBD4148,50V,DL-35,TP D113 0402-000016 DIODE-RECTIFIER UF5404,400V,3A,DO-201AD D114 0402-000016 DIODE-RECTIFIER UF5404,400V,3A,DO-201AD D401 0401-000191 DIODE-SWITCHING MMBD4148,50V,DL-35,TP D402 0401-000191 DIODE-SWITCHING MMBD4148,50V,DL-35,TP...
  • Page 21 IC-TTL 74F125,BUFFER,SOP,14P,150MIL,Q IC107 1203-001448 IC-POSI.FIXED REG. 2596,TO-263,5P,PLAS IC108 1203-001447 IC-POSI.FIXED REG. 2596,TO-263,5P,PLAS IC109 1203-000001 IC-POSI.FIXED REG. 7805,TO-220,3P,PLAS IC110 BN13-10001B IC-ASIC LXB530T,DLY-D1,SOP,16P,H/V POS IC115 1203-001538 IC-POSI.ADJUST REG. 431,SOT-89,3P,PLAS IC301 1205-001407 IC-BUFFER GMFC1,QFP,208P,PLASTIC,3.6V IC302 1105-001165 IC-DRAM 416S1020B,2x512Kx16BIT,SOP,50P IC303 1105-001165 IC-DRAM 416S1020B,2x512Kx16BIT,SOP,50P IC304...
  • Page 22 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks Q401 0501-000342 TR-SMALL SIGNAL KSC1623-Y,NPN,200mW,SOT- R101 2007-001166 R-CHIP 75ohm,5%,1/10W,DA,TP,2012 R102 2007-001166 R-CHIP 75ohm,5%,1/10W,DA,TP,2012 R103 2007-001166 R-CHIP 75ohm,5%,1/10W,DA,TP,2012 R104 2007-000781 R-CHIP 33ohm,5%,1/10W,DA,TP,2012 R105 2007-000781 R-CHIP 33ohm,5%,1/10W,DA,TP,2012 R106 2007-000781 R-CHIP 33ohm,5%,1/10W,DA,TP,2012 R107 2007-000493 R-CHIP...
  • Page 23 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks R404 2007-000941 R-CHIP 47Kohm,5%,1/10W,DA,TP,2012 R405 2007-000941 R-CHIP 47Kohm,5%,1/10W,DA,TP,2012 R406 2007-000941 R-CHIP 47Kohm,5%,1/10W,DA,TP,2012 R407 2007-000941 R-CHIP 47Kohm,5%,1/10W,DA,TP,2012 R408 2007-000941 R-CHIP 47Kohm,5%,1/10W,DA,TP,2012 R409 2007-000941 R-CHIP 47Kohm,5%,1/10W,DA,TP,2012 R410 2007-000872 R-CHIP 4.7Kohm,5%,1/10W,DA,TP,2012 R411 2007-000872 R-CHIP 4.7Kohm,5%,1/10W,DA,TP,2012...
  • Page 24 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks R459 2007-000409 R-CHIP 15Kohm,5%,1/10W,DA,TP,2012 R460 2007-000409 R-CHIP 15Kohm,5%,1/10W,DA,TP,2012 R461 2007-000290 R-CHIP 100ohm,5%,1/10W,DA,TP,2012 R462 2007-000290 R-CHIP 100ohm,5%,1/10W,DA,TP,2012 R463 2007-000290 R-CHIP 100ohm,5%,1/10W,DA,TP,2012 R464 2007-000300 R-CHIP 10Kohm,5%,1/10W,DA,TP,2012 R465 2007-000941 R-CHIP 47Kohm,5%,1/10W,DA,TP,2012 RA101 2011-000002 R-NETWORK 22ohm,5%,1/16W,L,CHIP,8P,TP...
  • Page 25 9 Electrical Parts List 9-2 Sub PCB Parts Loc. No. Code No. Description Specification Remarks BD801 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500,2375G BD802 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500,2375G BD803 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500,2375G C801 2401-000164 C-AL 1000uF,20%,25V,WT,12.5x20mm,5m C802 2201-000177 C-CERAMIC,DISC 10nF,10%,50V,Y5P,12.5X4.0,5,TP C803 2301-000016 C-FILM,PEF 22nF,5%,100V,7.2x4.5x9.0mm,5mm C804...
  • Page 26 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks D802 0401-000005 DIODE-SWITCHING 1N4148,75V,150mA,500mW,4nS,DO- IC803 1201-001269 IC-AUDIO AMP 4863,DIP,16P,300MIL,DUAL,PLA IC804 1203-001161 IC-POSI.FIXED REG. 2576,TO-220,5P,PLASTIC,4.9/5 L801 BH27-20344D COIL-CHOKE 50UH,10%,DR8*8,TAPING OP881 0601-001036 ROUND,GRN/YEL,4.75mm,565/585nm Q802 0501-000586 TR-NPN,KSC945,TO-92,EBC 0.25W,60V,50V,5V,0.15A R809 2001-000464 R-CARBON 2.4Kohm,5%,1/6W,AA,TP,1.8x3.2m R810 2001-000043 REF-CF,1K,5%,1/6W...
  • Page 27 9 Electrical Parts List Loc. No. Code No. Description Specification Remarks VR843 2101-001041 VR-ROTARY 50Kohm,20%,1/20W,TOP ZD801 0403-000003 DIODE-ZENER UZ8.2BL,8.2V,7.7-8.2V,500mW,DO ZD802 0403-000003 DIODE-ZENER UZ8.2BL,8.2V,7.7-8.2V,500mW,DO ZD803 0403-000003 DIODE-ZENER UZ8.2BL,8.2V,7.7-8.2V,500mW,DO ZD861 0403-000003 DIODE-ZENER UZ8.2BL,8.2V,7.7-8.2V,500mW,DO ZD862 0403-000003 DIODE-ZENER UZ8.2BL,8.2V,7.7-8.2V,500mW,DO SyncMaster 3*TFT/53*TFT 9-13...
  • Page 28 CBF POWER CORD VCTF,IVY,1830MM,N,LP-54 S/CABLE BH39-20001A CBF-SIGNAL DET,2100MM,15P/26P,IVORY,UL299 SPEAKER BN30-10001A SPEAKER-UNIT 1.5W,4ohm,84+-2db,500Hz,500 ADAPTOR BN94-80001B ASS’Y,ADAPTOR 13.3”,15” PROCESS-PBA UNIT BN94-30001D ASS’Y,PCB 13.3”,SAMSUNG BN94-30001E ASS’Y,PCB 15”,SAMSUNG BN94-30001H ASS’Y,PCB MCF3811TA,SIEMENS B/D ASS’Y CODE BN98-10001E ASS’Y,PCB/MAIN 13.3”,SAMSUNG BN98-10001F ASS’Y,PCB/MAIN 15”,SAMSUNG BN98-10001J ASS’Y,PCB/MAIN MCF3811TA,SIEMENS BN98-90001D ASS’Y,PCB/MISC...
  • Page 29 8 Block Diagram SyncMaster 33*TFT/53*TFT...
  • Page 30 8 Block Diagrams Memo SyncMaster 33*TFT/53*TFT...
  • Page 31: Pcb Diagrams

    10 PCB Diagrams 10-2 Semiconductor Lead Identification PARTS TYPE NO. REF. NO. PARTS TYPE NO. REF. NO. D115 BZX84C5V1 ZD101, ZD102, ZD103, ZD104, ZD105, ZD401 MMBD4148 D101, D102, D103, D104, KSC1623 Q301, Q302, Q401 D105, D106, D109, D110, D401, D402, D403, D404 KSC945 Q801, Q802 24LC08B...
  • Page 32 10 PCB Diagrams PARTS TYPE NO. REF. NO. PARTS TYPE NO. REF. NO. DS90CF561 IC310, IC311 TDA8752 IC101 GMFC1 IC301 416S1020B IC302, IC303, IC304 GMZ1 IC305 10-4 SyncMaster 33*TFT/53*TFT...
  • Page 33: Wiring Diagram

    11 Wiring Diagram LEFT_AMP LEFT_AMP RIGHT – CN806 CN841 RIGHT_AMP RIGHT_AMP CN814 RIGHT + MIC_EN MIC_EN LEFT – CN815 LEFT + LEFT_IN LEFT_IN RIGHT_IN RIGHT_IN AUDIO FUNC PCB CN801 MIC_GND CN805 MIC_SIG C-MIC CN808 CN809 CN812 CN813 CN804 CN816 MIC_OUT PC_AUDIO EXT_MIC HEADPHONE SMPS...
  • Page 34: Schematic Diagrams

    12 Schematic Diagrams 12-1 DAC & IO Part Schematic Diagram Power Line Signal Line 12-1 SyncMaster 33*TFT/53*TFT...
  • Page 35 12 Schematic Diagrams Table 12-1. IC102 Table 12-2. IC103 Table 12-3. IC107 MODES MODES MODES 1024 x 768 / 85 Hz 1024 x 768 / 85 Hz 1024 x 768 / 85 Hz Unit: Vrms Unit: Vrms Unit: Vrms Table 12-4. IC108 Table 12-5.
  • Page 36 12 Schematic Diagrams 12-2 ZOOM & FRC Part Schematic Diagram 12 13 14 Power Line Signal Line 12-3 SyncMaster 33*TFT/53*TFT...
  • Page 37 12 Schematic Diagrams Table 12-6. IC309 IC310 #22 IC310 #23 MODES 1024 x 768 / 85 Hz 11.96 5.90 4.99 CH1 RMS = 3.1 V CH1 RMS = 2.3 V 5.8 mV 4.99 4.99 11.95 11.95 Unit: Vrms IC310 #25 IC310 #26 CN301 #5~20 CH1 RMS = 2.8 V...
  • Page 38 12 Schematic Diagrams 12-3 Micom Part Schematic Diagram Table 12-7. IC401 MODES MODES 1024 x 768 / 85 Hz 1024 x 768 / 85 Hz 59.8 mV 3.44 4.16 5.01 4.62 4.97 0.457 4.46 4.91 4.43 4.78 4.77 5.03 14.07 5.02 2.226 5.02...
  • Page 39 12 Schematic Diagrams 12-4 Sub Part Schematic Diagram Table 12-10. IC803 MODES 1024 x 768 / 85 Hz Signal (+2.5 V Bias) Signal (+2.5 V Bias) Input Signal (+2.5 V Bias) Input Signal (+2.5 V Bias) Signal (+2.5 V Bias) Signal (+2.5 V Bias) 2.5 V (Headphone : 5 V) Unit: Vrms...
  • Page 40 12 Schematic Diagrams Memo 12-7 SyncMaster 33*TFT/53*TFT...

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