Manuals / Samsung / Computer Equipment / Computer Monitor

Samsung 531 TFT, 530 TFT, 531TFT, 331 TFT Microphones Don’t Work SyncMaster 330TFT/530TFT

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

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6 Troubleshooting

6-7 Microphones Don’t Work (SyncMaster 330TFT/530TFT)

Does the PC’s sound		No
program operate well?
	Yes
	Yes
		No
Is the connection between the PC
Is the connection between the PC
and monitor secure?
	Yes
	Yes

Is the Internal Microphone		No
connector attached?
	Yes
	Yes
		No
Does the Internal Microphone
Does the Internal Microphone
work?
	Yes
	Yes
		No
Does the External Microphone
Does the External Microphone
work?

Check the PC’s sound program

and compatibility.

Connect the cable between the PC

and monitor.

Check the connection between CN805 on the Audio PCB and the Internal Microphone.

Check Q802 and related circuits.

Check the CN182 jack.

Yes

6-8 Headphones Don’t Work (SyncMaster 330TFT/530TFT)

Can you hear any sound from		No
the Headphones?
	Yes
	Yes

Do you hear sound from the		No
Internal Speaker?

Check CN813 on the Audio PCB and related circuit R817, R820, ZD801, ZD802.

Check the Headphone Plug in the Headphone Jack and R821, R822, C815 on the Audio PCB.

Yes

6-6	SyncMaster 33TFT/53TFT

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Samsung 531 TFT, 530 TFT Microphones Don’t Work SyncMaster 330TFT/530TFT, Headphones Don’t Work SyncMaster 330TFT/530TFT

Contents

SERVICE Manual SyncMaster 330TFT SyncMaster 530TFT SyncMaster 331TFTSyncMaster 531TFT CONTENTSPrinted in Korea Code No. BN68-60017A 1-1-4 Product Safety Notices 1 Precautions1-1 Safety Precautions 1-1-1 Warnings1-2-1 General Servicing Precautions 1-2 Servicing Precautions1-3 Electrostatically Sensitive Devices ESD Precautions 2-1-1 Abbreviations 2-1 List of Abbreviations, Symbols and Acronyms2 Reference Information Programmable Read only Memory 2-1-2 Symbols2-1-2 Acronyms 3 Product Specifications 3-1 Specifications3-2 Pin Assignments Pin NoTiming 3-3 Timing ChartMode 60 x ModeTiming 640/67 HzLocation 4-1 Control and Connectors4 Operating Instructions MENUFigure 4-3. Front View and Control 4 Operating Instructions4-1-2 SyncMaster 330TFT/530TFT Figure 4-4. Rear View Table 4-2. Front Panel Controls4-2 Microprocessor Controls and Functions 4-2-1 OSD Window4-3 Audio Controls 4-4 Power Management System4-3-1 Audio Adjustments 5-1-2 Main Body Disassembly 5 Disassembly and Reassembly5-1 Disassembly 5-1-1 Removing the Stand5-1-3 Stand Disassembly 5 Disassembly and Reassembly 3. Remove the 10 screws from the stand assembly4. Remvoe the hinge, neck front, PCB, signal cable 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” 5-4 Reassembly 5 Disassembly and Reassembly6 Troubleshooting 6-1 No Power6-2 No Video Does the sync pulses appear atWAVEFORMS 6-5 User Controls Don’t Work 6-3 No Video of Alternate Vertical Line6-4 No OSD WAVEFORMS6-6 No Sound SyncMaster 330TFT/530TFT Does the DC 5 V appear at Pin 5 of CN806, Pin 4 of IC803?6-8 Headphones Don’t Work SyncMaster 330TFT/530TFT 6-7 Microphones Don’t Work SyncMaster 330TFT/530TFTSpecification 9 Electrical Parts List9-1 Main PCB Parts Loc. NoLoc. No 9 Electrical Parts ListSpecification DescriptionSyncMaster 3*TFT/53*TFT 9 Electrical Parts ListSpecification Loc. NoLoc. No 9 Electrical Parts ListSpecification DescriptionCode No SpecificationLoc. No DescriptionDescription SpecificationLoc. No RemarksCode No SpecificationLoc. No DescriptionDescription SpecificationLoc. No RemarksSyncMaster 3*TFT/53*TFT 9 Electrical Parts ListSpecification Loc. NoLoc. No SpecificationR-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 DescriptionLoc. No 9-2 Sub PCB PartsSpecification Code NoLoc. No 9 Electrical Parts ListSpecification DescriptionSyncMaster 3*TFT/53*TFT 9 Electrical Parts ListSpecification 9-13Loc. No OthersSpecification Code NoLCD PANEL 8 Block DiagramLVDS x AudioMemo 8 Block Diagrams10-2 Semiconductor Lead Identification TYPE NO TYPE NOREF. NO REF. NOLCD PANEL 11 Wiring DiagramAUDIO FUNC PCB SMPSPower Line 12 Schematic Diagrams12-1 DAC & IO Part Schematic Diagram Signal Line12-2 12 Schematic DiagramsSyncMaster 33*TFT/53*TFT Table 12-1. IC102Signal Line 12-2 ZOOM & FRC Part Schematic DiagramPower Line 12-4 12 Schematic DiagramsSyncMaster 33*TFT/53*TFT Table 12-6. IC3091024 x 768 / 85 Hz 12-3 Micom Part Schematic DiagramPower Line 1024 x 768 / 85 HzSyncMaster 33*TFT/53*TFT 12-4 Sub Part Schematic Diagram12 Schematic Diagrams 12-612 Schematic Diagrams Memo