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Samsung SyncMaster 330TFT Service Manual

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SERVICE

COLOR MONITOR

SAMSUNG
EXIT
COLOR MONITOR
SyncMaster 330TFT
SyncMaster 530TFT
SyncMaster 331TFT
SyncMaster 531TFT
MENU
-
+
Manual
CONTENTS
7. Exploded View & Parts List
8. Block Diagram

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Summary of Contents for Samsung SyncMaster 330TFT

  • Page 1: Table Of Contents

    SERVICE COLOR MONITOR SAMSUNG EXIT MENU COLOR MONITOR SyncMaster 330TFT SyncMaster 530TFT SyncMaster 331TFT SyncMaster 531TFT Manual CONTENTS 1. Precautions 2. Reference Information 3. Product Specifications 4. Operating Instructions 5. Disassembly & Reassembly 6. Troubleshooting 7. Exploded View & Parts List 8.
  • 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 circuit board. 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 AUTO_MENB AUTO ENABLE (NEG.) AUTO_SOG SINK ON GREEN ENABLE BL_EN LCD PANEL BACK LIGHT ENABLE BRIGHT BRIGHTNESS CONTROL DAB(7:0) BLUE COLOR DATA (ODD) FROM IC305 DAG(7:0) GREEN COLOR DATA (ODD) FROM IC305 DAR(7:0) RED COLOR DATA (ODD) FROM IC305 DBB(7:0)
  • Page 6 2 Reference Information 2-1-2 Symbols Hot Ground Cold Ground Provides special safety considerations 2-1-2 Acronyms Acronym Automatic Brightness Limits Alternating Current Automatic Contrast Limit Automatic Frequency Control ANSI American National Standards Institute CMOS Complementary Metal Oxide Semiconductor Cathode Ray Tube Direct Current Data Display Channel Dynamic Focus...

  • Page 7: Product Specifications

    3 Product Specifications 3-1 Specifications Item 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 Display Colors 16.7 Million colors...

  • Page 8: Pin Assignments

    3 Product Specifications 3-2 Pin Assignments Sync Type Separate Pin No. Green Blue GND (DDC Return) GND-R GND-G GND-B No Connection GND-Sync/Self Test DDC Data H-Sync V-Sync DDC Clock Sync Type Separate Pin No. Green Blue GND (DDC Return) GND-R GND-G GND-B No Connection...

  • Page 9: Timing Chart

    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. Mode VGA1/70 Hz VGA2/70 Hz 640 x 350 Timing fH (kHz) 31.469 A µsec 31.778 B µsec 3.813 C µsec 1.589...
  • Page 10 3 Product Specifications Mode 800/72 Hz 800 x 600 Timing fH (kHz) 48.077 A µsec 20.800 B µsec 2.400 C µsec 1.280 D µsec 16.000 E µsec 1.120 fV (Hz) 72.188 O msec 13.853 P msec 0.125 Q msec 0.478 R msec 12.480 S msec...

  • Page 11: Operating Instructions

    4 Operating Instructions 4-1 Control and Connectors 4-1-1 SyncMaster 331TFT/531TFT SAMSUNG EXIT EXIT Figure 4-1. Front View and Control SyncMaster 33*TFT/53*TFT MENU MENU Location DC 12V Signal Cable Figure 4-2. Rear View Table 4-1. Front Panel Controls Symbol Description Power Button...
  • Page 12 4 Operating Instructions 4-1-2 SyncMaster 330TFT/530TFT SAMSUNG EXIT MENU SAMSUNG EXIT ON/OFF VOLUME BASS TREBLE MAX MIN Figure 4-3. Front View and Control MENU Location AUDIO AUDIO Microphone out port Power port Figure 4-4. Rear View Table 4-2. Front Panel Controls...

  • Page 13: Microprocessor Controls And Functions

    4-2 Microprocessor Controls and Functions This monitor has no Òservice onlyÓ micom controls. Should there be a problem with the microprocessor, replace the entire circuit board. There are, however, user accessible adjustment features that are described below. This monitor has factory preset display settings for each of the signals listed in the standard display modes Timing Chart (see pages 3-3 and 3-4).

  • Page 14: Audio Controls

    DPMS software program to enable the power saving function. Please contact Samsung or your dealer for more information. monitor OFF when it is not needed, or when leaving it unattended for long periods.

  • Page 15: Disassembly & Reassembly

    5 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the SyncMaster 33*TFT/53*TFT monitors. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 5-1 Disassembly Cautions:1. Disconnect the monitor from the power source before disassembly. 2.
  • Page 16 5 Disassembly and Reassembly 6. Remove 4 screws on the Rear Panel Bracket. (15Ó : 6 screws) Figure 5-5 7. Remove the Bracket Assembly from the Front Cover. 8. Remove 1 screw on the Power PCB. 9. Remove Function PCB from locking area of Function Knob.
  • Page 17 2. Make a little gap between stand assembly and Rear Cover with a ÔÐÕ screw driver. And pry Rear Cover off stand assembly with the finger. Figure 5-9 3. Remove the 10 screws from the stand assembly. Figure 5-10 4. Remvoe the hinge, neck front, PCB, signal cable.
  • Page 18 5 Disassembly and Reassembly 5-2 Replacement Order of Lamp Assemblies (13.3”) 1. Disconnect lamp lead- connector from the inverter. * Replacement of lamp assemblies should be done at the power off state and recommended clean bench condition. 2. Remove a screw which is used to hold a lamp assembly on.
  • Page 19 5-3 Replacement Order of Lamp Assemblies (15”) SyncMaster 33*TFT/53*TFT 5 Disassembly and Reassembly 1. Disconnect lamp lead- connectors from the inverter. (2EA) * Replacement of lamp assemblies should be done at the power off state and recommended clean bench condition. 2.
  • Page 20 5 Disassembly and Reassembly 5-4 Reassembly Reassembly procedures are in the reverse order of Disassembly procedures. SyncMaster 33*TFT/53*TFT...

  • Page 21: Troubleshooting

    2. If no picture appears, make sure the power cord is correctly connected. 3. Check the following circuits. • No raster appears: Audio PCB, SMPS PCB, Main PCB (SyncMaster 330TFT/550TFT) Stand PCB, Main PCB (SyncMaster 331TFT/531TFT) • 12V develop but no screen: Main PCB •...

  • Page 22: No Video

    6 Troubleshooting 6-2 No Video Power indicator is green Does the clock pulse appear at output of FT110, FT111, FT112? 18 19 Does the sync pulses appear at Pins 13 and 14 of IC110? Do the sync pulses appear at Pins 22, 23, 25 and 26 of IC310? Do the waveforms appear at Pins 5 and 20 of CN301?
  • Page 23 WAVEFORMS IC110 #3 IC310 #22 CH1 RMS = 3.6 V CH1 RMS = 3.1 V IC310 #26 CN301 #5~20 CH1 RMS = 2.12 V CH1 RMS = 1.18 V IC104, #1 IC301 #2 CH1 RMS = 4.56 V CH1 RMS = 2.3 V IC301, #55 IC301 #56 CH1 RMS = 200 mV...
  • Page 24 6 Troubleshooting 6-3 No Video of Alternate Vertical Line One or more even or odd vertical lines do not display. Does the waveform appear at Pin 20 of CN301? Replace LCD panel. 6-4 No OSD There is video but no OSD. While pushing a front control button does any pulse appear at Pin 12 of IC307?
  • Page 25 6-6 No Sound (SyncMaster 330TFT/530TFT) Does the DC 5 V appear at Pin 5 of CN806, Pin 4 of IC803? Does the sound input signal appear at Pins 6 and 11 of IC803? Do the sound signals appear at Pins 3 and 14 of IC803? Does the DC 2.5 V bias appear at...
  • Page 26 6 Troubleshooting 6-7 Microphones Don’t Work (SyncMaster 330TFT/530TFT) Does the PC’s sound program operate well? Is the connection between the PC and monitor secure? Is the Internal Microphone connector attached? Does the Internal Microphone work? Does the External Microphone work? 6-8 Headphones Don’t Work (SyncMaster 330TFT/530TFT)

  • Page 27: Electrical Parts List

    9 Electrical Parts List 9-1 Main PCB Parts Loc. No. Code No. BD101 2703-001334 BD102 2703-001334 BD103 2703-001334 BD104 2703-001334 BD105 2703-001334 C100 2203-000260 C101 2402-000168 C102 2203-000260 C103 2402-000168 C104 2203-000260 C105 2402-000168 C106 2402-000168 C107 2203-000239 C108 2203-000239 C109 2203-000260 C110...
  • Page 28 9 Electrical Parts List Loc. No. Code No. C140 2203-000260 C141 2203-000203 C142 2203-000844 C143 2203-000953 C144 2203-000203 C145 2203-000260 C146 2203-000260 C147 2203-000203 C148 2203-000260 C149 2203-000203 C150 2203-000260 C151 2203-000203 C152 2203-000595 C153 2203-000595 C154 2203-000595 C155 2203-000595 C156 2203-001002 C157...
  • Page 29 Loc. No. Code No. C196 2203-000260 C201 2203-000455 C202 2203-000203 C203 2203-000455 C204 2203-000203 C301 2203-000203 C302 2203-000203 C303 2203-000203 C304 2203-000203 C305 2203-000203 C306 2203-000203 C307 2203-000203 C308 2203-000203 C309 2203-000203 C310 2203-000203 C311 2203-000203 C312 2203-000203 C313 2203-000203 C314 2203-000203 C315...
  • Page 30 9 Electrical Parts List Loc. No. Code No. C343 2203-000203 C344 2203-000203 C345 2203-000203 C346 2203-000203 C347 2203-000203 C348 2203-000203 C349 2203-000203 C350 2203-000203 C351 2203-000203 C352 2203-000203 C353 2203-000203 C354 2203-000203 C355 2203-000203 C356 2203-000203 C357 2203-000203 C358 2203-000203 C359 2203-000203 C360...
  • Page 31 Loc. No. Code No. C392 2203-000203 C393 2203-000455 C394 2203-000203 C395 2203-000455 C396 2203-000203 C397 2203-000455 C398 2203-000203 C401 2203-000260 C402 2404-000123 C403 2203-000260 C404 2404-000123 C405 2203-000455 C406 2404-000123 C407 2203-000203 C408 2402-000168 C409 2404-000123 C410 2203-000260 C411 2203-000203 C412 2404-000123 C413...
  • Page 32 9 Electrical Parts List Loc. No. Code No. D105 0401-000191 D106 0401-000191 D109 0401-000191 D110 0401-000191 D113 0402-000016 D114 0402-000016 D401 0401-000191 D402 0401-000191 D403 0401-000191 D404 0401-000191 F101 3601-001061 FT101 2901-001114 FT102 2901-001114 FT103 2901-001114 FT120 2901-001114 FT122 2901-000172 FT301 2901-001114 FT306...
  • Page 33 Loc. No. Code No. IC102 1203-000001 IC103 1203-000001 IC104 1204-000292 IC105 0803-000117 IC106 0803-000122 IC107 1203-001448 IC108 1203-001447 IC109 1203-000001 IC110 BN13-10001B IC115 1203-001538 IC301 1205-001407 IC302 1105-001165 IC303 1105-001165 IC304 1105-001165 IC305 0904-001222 IC306 0801-000757 IC307 1204-001251 IC308 0802-001038 IC309 0505-001170 IC310...
  • Page 34 9 Electrical Parts List Loc. No. Code No. Q401 0501-000342 R101 2007-001166 R102 2007-001166 R103 2007-001166 R104 2007-000781 R105 2007-000781 R106 2007-000781 R107 2007-000493 R110 2007-000290 R115 2007-000593 R116 2007-000593 R117 2007-001118 R118 2007-000593 R124 2007-000593 R125 2007-000593 R127 2007-000300 R128 2007-000290 R129...
  • Page 35 Loc. No. Code No. R404 2007-000941 R405 2007-000941 R406 2007-000941 R407 2007-000941 R408 2007-000941 R409 2007-000941 R410 2007-000872 R411 2007-000872 R412 2007-000941 R413 2007-000941 R415 2007-000941 R416 2007-000941 R417 2007-000290 R418 2007-000290 R419 2007-000290 R420 2007-000290 R421 2007-000290 R422 2007-000290 R423 2007-000290 R424...
  • Page 36 9 Electrical Parts List Loc. No. Code No. R459 2007-000409 R460 2007-000409 R461 2007-000290 R462 2007-000290 R463 2007-000290 R464 2007-000300 R465 2007-000941 RA101 2011-000002 RA102 2011-000002 RA103 2011-000002 RA104 2011-000002 RA105 2011-000002 RA106 2011-000002 RA107 2011-001015 RA108 2011-001015 RA109 2011-001015 RA110 2011-001015 RA111...
  • Page 37 9-2 Sub PCB Parts Loc. No. Code No. BD801 3301-000011 BD802 3301-000011 BD803 3301-000011 C801 2401-000164 C802 2201-000177 C803 2301-000016 C804 2401-000613 C810 2305-000624 C811 2305-000624 C812 2305-000624 C813 2301-000184 C814 2401-000613 C815 2401-001334 C816 2401-000310 C820 2401-000042 C841 2301-000012 C842 2301-000012 C843...
  • Page 38 9 Electrical Parts List Loc. No. Code No. D802 0401-000005 IC803 1201-001269 IC804 1203-001161 L801 BH27-20344D OP881 0601-001036 Q802 0501-000586 R809 2001-000464 R810 2001-000043 R811 2001-000029 R812 2001-000029 R813 2001-000067 R814 2001-000059 R815 2001-000496 R816 2001-000484 R817 2001-000029 R818 2001-000496 R819 2001-000484 R820...
  • Page 39 Loc. No. Code No. VR843 2101-001041 ZD801 0403-000003 ZD802 0403-000003 ZD803 0403-000003 ZD861 0403-000003 ZD862 0403-000003 SyncMaster 3*TFT/53*TFT Description VR-ROTARY DIODE-ZENER DIODE-ZENER DIODE-ZENER DIODE-ZENER DIODE-ZENER 9 Electrical Parts List Specification 50Kohm,20%,1/20W,TOP UZ8.2BL,8.2V,7.7-8.2V,500mW,DO UZ8.2BL,8.2V,7.7-8.2V,500mW,DO UZ8.2BL,8.2V,7.7-8.2V,500mW,DO UZ8.2BL,8.2V,7.7-8.2V,500mW,DO UZ8.2BL,8.2V,7.7-8.2V,500mW,DO Remarks 9-13...
  • Page 40 9-14 Description LT133XM-101,303*223*13,TFT,STR LT150X1-102,368*275*20 CBF POWER CORD DET,250V/6A,H05VV-F,LP-34 CBF POWER CORD DET,H05VV-F,250V/10A,IV27,1830MM CBF POWER CORD VCTF,IVY,1830MM,N,LP-54 CBF-SIGNAL DET,2100MM,15P/26P,IVORY,UL299 SPEAKER-UNIT 1.5W,4ohm,84+-2db,500Hz,500 ASS’Y,ADAPTOR 13.3”,15” ASS’Y,PCB 13.3”,SAMSUNG ASS’Y,PCB 15”,SAMSUNG ASS’Y,PCB MCF3811TA,SIEMENS ASS’Y,PCB/MAIN 13.3”,SAMSUNG ASS’Y,PCB/MAIN 15”,SAMSUNG ASS’Y,PCB/MAIN MCF3811TA,SIEMENS ASS’Y,PCB/MISC 13.3”,15”,SAMSUNG Specification Remarks SyncMaster 33*TFT/53*TFT...
  • Page 41 8 Block Diagram SyncMaster 33*TFT/53*TFT...
  • Page 42 8 Block Diagrams Memo SyncMaster 33*TFT/53*TFT...

  • Page 43: Pcb Diagrams

    10-2 Semiconductor Lead Identification PARTS TYPE NO. D115 KSC1623 Q301, Q302, Q401 KSC945 Q801, Q802 KSR2101 Q101 OP881 KA7805 IC102, IC103, IC109 LM2576 IC805 7045 IC402 SyncMaster 33*TFT/53*TFT REF. NO. PARTS 10 PCB Diagrams TYPE NO. REF. NO. BZX84C5V1 ZD101, ZD102, ZD103, ZD104, ZD105, ZD401 MMBD4148 D101, D102, D103, D104,...
  • Page 44 10 PCB Diagrams PARTS TYPE NO. DS90CF561 IC310, IC311 416S1020B IC302, IC303, IC304 10-4 REF. NO. PARTS TYPE NO. REF. NO. TDA8752 IC101 GMFC1 IC301 GMZ1 IC305 SyncMaster 33*TFT/53*TFT...

  • Page 45: Wiring Diagram

    11 Wiring Diagram BRIGHT BL_EN LCD PANEL SyncMaster 33*TFT/53*TFT RIGHT – CN806 CN814 RIGHT + LEFT – CN815 LEFT + CN801 CN805 CN808 CN809 CN812 CN804 CN816 MIC_OUT PC_AUDIO EXT_MIC HEADPHONE SMPS CN101 CN102 CN103 MAIN PCB LEFT_AMP LEFT_AMP CN841 RIGHT_AMP RIGHT_AMP MIC_EN...

  • Page 46: Schematic Diagrams

    12 Schematic Diagrams 12-1 DAC & IO Part Schematic Diagram Power Line Signal Line 12-1 SyncMaster 33*TFT/53*TFT...
  • Page 47 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. IC109 IC110 #3 MODES MODES...
  • Page 48 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 49 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 CH1 RMS = 2.12 V CH1 RMS = 1.18 V...
  • Page 50 12 Schematic Diagrams 12-3 Micom Part Schematic Diagram 12-5 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...
  • Page 51 12-4 Sub Part Schematic Diagram SyncMaster 33*TFT/53*TFT 12 Schematic Diagrams 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 52 12 Schematic Diagrams Memo 12-7 SyncMaster 33*TFT/53*TFT...

This manual is also suitable for:

Syncmaster 331tftSyncmaster 530tftSyncmaster 531tftSyncmaster 330Syncmaster 530Syncmaster 331 ... Show all

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