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Samsung DSR9500 CI No Spdif Output, R430 is 5V?, Data waveform, occur at R431, Check J801

Models: DSR9500 FTA DSR9500 CI DSR9500VIACI

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Troubleshooting

NO SPDIF OUTPUT

R430 is 5V?		No

	Yes

		No
Data waveform
occur at R431.

Yes

Check J801.

Check R430, SMPS.

U750 Data, CLK

:5, 6, 7, 8.

Yes

Check 750.

4-4	Samsung Electronics

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Samsung DSR9500 CI, DSR9500 FTA No Spdif Output, R430 is 5V?, Data waveform, occur at R431, Check J801, Troubleshooting

Contents

3. Software Upgrade and Installation 4. Troubleshooting SERVICE ManualCONTENTS 1. Precautions 2. Operating InstructionsFront 7. PCB DiagramsMain COMPONENT SIDE 7-1 MainSamsung Electronics CONDUCTOR SIDECOMPONENT SIDE CONDUCTOR SIDE 7-2 FrontLoc.No 6. Electrical Parts ListDescription Specification Description SpecificationLoc.No Electrical Parts ListDescription Specification Description SpecificationLoc.No Electrical Parts ListDescription Specification Description SpecificationLoc.No Electrical Parts ListDescription Specification Description SpecificationSamsung Electronics Description SpecificationDescription Specification CONNECTOR-HEADERNOWALL,31P,1R,2.5mm,ANGLoc.No Electrical Parts ListDescription Specification Description SpecificationLoc.No Description SpecificationDescription Specification Samsung ElectronicsLoc.No Electrical Parts ListDescription Specification Description SpecificationLoc.No Description SpecificationSamsung Electronics Loc.NoLoc.No Electrical Parts ListDescription Specification Description SpecificationLoc.No Description SpecificationDescription Specification Loc.NoLoc.No Electrical Parts ListDescription Specification Description Specification6-13 Description SpecificationDescription Specification Samsung ElectronicsLoc.No Electrical Parts ListDescription Specification Description SpecificationLoc.No Description SpecificationSamsung Electronics 6-15Loc.No Electrical Parts ListDescription Specification Description SpecificationMF95-10004G Description SpecificationLoc.No Loc.NoLoc.No Electrical Parts ListDescription Specification Description Specification6-19 Description SpecificationDescription Specification Samsung ElectronicsLoc.No Electrical Parts ListDescription Specification Description SpecificationLoc.No Electrical Parts ListDescription Specification Description SpecificationLoc.No Electrical Parts ListDescription Specification Description SpecificationSMPSSRV22901EA,P151,AC/DC,-,AC85 Description SpecificationLoc.No Loc.NoLoc.No Electrical Parts ListDescription Specification Description SpecificationParts No 5. Exploded View and Parts ListDescription Specification Loc. NoSamsung Electronics MEMOExploded View and Parts List No No No No No No 4. TroubleshootingNO POWER LED OFF Check U1004 Check U72, U71 Check T1001 Check U500 NO LOCKINGData control signal TroubleshootingVideo signal occur NO RF-MOD OUTPUTData waveform NO SPDIF OUTPUTTroubleshooting R430 is 5V?Q400, Q403 base video signal? NO S-VIDEO OUTPUTVideo signal occur at R405, R417 TroubleshootingR258, R259 voltage is 8~10V? NO S/W DOWNLOADNo No TroubleshootingCheck Q826 Q826 Base signal?Q825 Base signal? NO VIDEO TV SCART, RCATroubleshooting NO VIDEO OUT VCRQ821 base signal Check CP825 Q821 collector, signalNO AUDIO OUT Samsung Electronics TroubleshootingMEMO 4-10

NO SPDIF OUTPUT

R430 is 5V?

Data waveform

occur at R431.

Check J801.

Check R430, SMPS.

Check 750.