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Samsung 530 TFT, 531 TFT, 531TFT, 331 TFT specifications No Sound SyncMaster 330TFT/530TFT

Models: 330TFT 531 TFT 331 TFT 530TFT 530 TFT 531TFT

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6 Troubleshooting

6-6 No Sound (SyncMaster 330TFT/530TFT)

Does the DC 5 V appear at Pin 5 of CN806, Pin 4 of IC803?

Yes

Does the sound input signal

appear at Pins 6 and 11 of IC803?

Yes

Do the sound signals appear at

Pins 3 and 14 of IC803?

Yes

Does the DC 2.5 V bias appear at

Pin 16 of IC503?

Check IC804, IC803, VR841 and

related circuit.

Check Pins 1 and 2 of CN806 and

related circuits.

Check IC803 and related circuits.

Check CN813, ZD803, R821, R822,

C815 on the Audio PCB.

Yes

Check CN814, CN815 outputs.

SyncMaster 33*TFT/53*TFT

6-5

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Samsung 530 TFT, 531 TFT No Sound SyncMaster 330TFT/530TFT, Does the DC 5 V appear at Pin 5 of CN806, Pin 4 of IC803?

Contents

SyncMaster 531TFT SyncMaster 330TFT SyncMaster 530TFT SyncMaster 331TFTSERVICE Manual CONTENTSPrinted in Korea Code No. BN68-60017A 1-1 Safety Precautions 1 Precautions1-1-4 Product Safety Notices 1-1-1 Warnings1-3 Electrostatically Sensitive Devices ESD Precautions 1-2 Servicing Precautions1-2-1 General Servicing Precautions 2 Reference Information 2-1 List of Abbreviations, Symbols and Acronyms2-1-1 Abbreviations 2-1-2 Acronyms 2-1-2 SymbolsProgrammable Read only Memory 3-1 Specifications 3 Product SpecificationsPin No 3-2 Pin AssignmentsMode 3-3 Timing ChartTiming Timing Mode60 x 640/67 Hz4 Operating Instructions 4-1 Control and ConnectorsLocation MENU4-1-2 SyncMaster 330TFT/530TFT 4 Operating InstructionsFigure 4-3. Front View and Control Figure 4-4. Rear View Table 4-2. Front Panel Controls4-2-1 OSD Window 4-2 Microprocessor Controls and Functions4-3-1 Audio Adjustments 4-4 Power Management System4-3 Audio Controls 5-1 Disassembly 5 Disassembly and Reassembly5-1-2 Main Body Disassembly 5-1-1 Removing the Stand5-1-3 Stand Disassembly 4. Remvoe the hinge, neck front, PCB, signal cable 3. Remove the 10 screws from the stand assembly5 Disassembly and Reassembly 5. Remove the screw and washer on the base of the stand5-2 Replacement Order of Lamp Assemblies 13.3” 5-3 Replacement Order of Lamp Assemblies 15” 5 Disassembly and Reassembly 5-4 Reassembly6-1 No Power 6 TroubleshootingDoes the sync pulses appear at 6-2 No VideoWAVEFORMS 6-4 No OSD 6-3 No Video of Alternate Vertical Line6-5 User Controls Don’t Work WAVEFORMSDoes the DC 5 V appear at Pin 5 of CN806, Pin 4 of IC803? 6-6 No Sound SyncMaster 330TFT/530TFT6-7 Microphones Don’t Work SyncMaster 330TFT/530TFT 6-8 Headphones Don’t Work SyncMaster 330TFT/530TFT9-1 Main PCB Parts 9 Electrical Parts ListSpecification Loc. NoSpecification 9 Electrical Parts ListLoc. No DescriptionSpecification 9 Electrical Parts ListSyncMaster 3*TFT/53*TFT Loc. NoSpecification 9 Electrical Parts ListLoc. No DescriptionLoc. No SpecificationCode No DescriptionLoc. No SpecificationDescription RemarksLoc. No SpecificationCode No DescriptionLoc. No SpecificationDescription RemarksSpecification 9 Electrical Parts ListSyncMaster 3*TFT/53*TFT Loc. NoR-CHIP R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK RELAY-POWER SWITCH-SLIDE VR-ROTARY OSCILLATOR-CLOCK OSCILLATOR-CLOCK CRYSTAL-UNIT DIODE-ZENER DIODE-ZENER DIODE-ZENER DIODE-ZENER DIODE-ZENER DIODE-ZENER SpecificationLoc. No DescriptionSpecification 9-2 Sub PCB PartsLoc. No Code NoSpecification 9 Electrical Parts ListLoc. No DescriptionSpecification 9 Electrical Parts ListSyncMaster 3*TFT/53*TFT 9-13Specification OthersLoc. No Code NoLVDS x 8 Block DiagramLCD PANEL Audio8 Block Diagrams Memo10-2 Semiconductor Lead Identification REF. NO TYPE NOTYPE NO REF. NOAUDIO FUNC PCB 11 Wiring DiagramLCD PANEL SMPS12-1 DAC & IO Part Schematic Diagram 12 Schematic DiagramsPower Line Signal LineSyncMaster 33*TFT/53*TFT 12 Schematic Diagrams12-2 Table 12-1. IC102Power Line 12-2 ZOOM & FRC Part Schematic DiagramSignal Line SyncMaster 33*TFT/53*TFT 12 Schematic Diagrams12-4 Table 12-6. IC309Power Line 12-3 Micom Part Schematic Diagram1024 x 768 / 85 Hz 1024 x 768 / 85 Hz12 Schematic Diagrams 12-4 Sub Part Schematic DiagramSyncMaster 33*TFT/53*TFT 12-6Memo 12 Schematic Diagrams