Manuals / Samsung / TV and Video / Satellite TV System

Samsung DSR9500VIACI, DSR9500 FTA, DSR9500EMVIA, DSR9500 CI No Rf-Mod Output, Video signal occur

Models: DSR9500 FTA DSR9500 CI DSR9500VIACI

1 41

Download 41 pages 2.36 Kb

Page 34

Image 34

NO RF-MOD OUTPUT

Troubleshooting

Q823 Base is High?

Yes

Check U106.

Q824 Collecter is 5V?

Yes

Check L801.

Check Q824.

Video signal occur	No
Q807 Emittter?

Yes

When RF channel tunning, I2C CLK, data are OK?

: R166, R168.

Yes

BD75 is 30 3V?

Yes

Check MOD801.

U801 (12, 14)	No	Check U801.
video signal is OK?

Yes

Check Q807.

Samsung Electronics

4-3

Page 34

Image 34

Samsung DSR9500VIACI, DSR9500 FTA, DSR9500EMVIA, DSR9500 CI operating instructions No Rf-Mod Output, Video signal occur

Contents

1. Precautions 2. Operating Instructions SERVICE ManualCONTENTS 3. Software Upgrade and Installation 4. TroubleshootingMain 7. PCB DiagramsFront 7-1 Main COMPONENT SIDECONDUCTOR SIDE Samsung Electronics7-2 Front COMPONENT SIDE CONDUCTOR SIDEDescription Specification 6. Electrical Parts ListDescription Specification Loc.NoDescription Specification Electrical Parts ListDescription Specification Loc.NoDescription Specification Electrical Parts ListDescription Specification Loc.NoDescription Specification Electrical Parts ListDescription Specification Loc.NoCONNECTOR-HEADERNOWALL,31P,1R,2.5mm,ANG Description SpecificationDescription Specification Samsung ElectronicsDescription Specification Electrical Parts ListDescription Specification Loc.NoSamsung Electronics Description SpecificationDescription Specification Loc.NoDescription Specification Electrical Parts ListDescription Specification Loc.NoLoc.No Description SpecificationSamsung Electronics Loc.NoDescription Specification Electrical Parts ListDescription Specification Loc.NoLoc.No Description SpecificationDescription Specification Loc.NoDescription Specification Electrical Parts ListDescription Specification Loc.NoSamsung Electronics Description SpecificationDescription Specification 6-13Description Specification Electrical Parts ListDescription Specification Loc.No6-15 Description SpecificationSamsung Electronics Loc.NoDescription Specification Electrical Parts ListDescription Specification Loc.NoLoc.No Description SpecificationLoc.No MF95-10004GDescription Specification Electrical Parts ListDescription Specification Loc.NoSamsung Electronics Description SpecificationDescription Specification 6-19Description Specification Electrical Parts ListDescription Specification Loc.NoDescription Specification Electrical Parts ListDescription Specification Loc.NoDescription Specification Electrical Parts ListDescription Specification Loc.NoLoc.No Description SpecificationLoc.No SMPSSRV22901EA,P151,AC/DC,-,AC85Description Specification Electrical Parts ListDescription Specification Loc.NoLoc. No 5. Exploded View and Parts ListDescription Specification Parts NoExploded View and Parts List MEMOSamsung Electronics NO POWER LED OFF 4. TroubleshootingNo No No No No No Troubleshooting NO LOCKINGData control signal Check U1004 Check U72, U71 Check T1001 Check U500NO RF-MOD OUTPUT Video signal occurR430 is 5V? NO SPDIF OUTPUTTroubleshooting Data waveformTroubleshooting NO S-VIDEO OUTPUTVideo signal occur at R405, R417 Q400, Q403 base video signal?Troubleshooting NO S/W DOWNLOADNo No R258, R259 voltage is 8~10V?NO VIDEO TV SCART, RCA Q826 Base signal?Q825 Base signal? Check Q826Q821 collector, signal NO VIDEO OUT VCRQ821 base signal Check CP825 TroubleshootingNO AUDIO OUT 4-10 TroubleshootingMEMO Samsung Electronics