Samsung LTM1555(B), ES15U specifications No Video PC Signal

Page 14

5 Troubleshooting

5-2 No Video (PC Signal)

Power indicator is green.

Yes

Does the signal appear at IC134, IC135, IC136 of R, G, B input?

Yes

Does the clock pulse

appear at X21?

Yes

Does the clock pulse appear at

output of <RA35~RA39, RA310>15” <RA35~RA39, RA310, RA313~318>17”.

Yes

Does the clock pulse appear at

output of <R611~R620>15”

<R611~R620, R61~R69, R610>17”.

Yes

Replace LCD Panel.

CONFIDENTIAL

No

Check CN11.

No

Check X21 and related circuit of X21.

No

Check related circuit of IC32.

No	Replace <R611~R620>15”

<R611~R620, R61~R69, R610>17”.

5-2	LTM1555(B)/LTM1755(B)

Image 14

Contents

TFT-LCD Monitor BN82-00071A-00 Precautions Safety PrecautionsServicing Precautions Electrostatically Sensitive Devices ESD PrecautionsProduct Specifications SpecificationsPin Assignments Sync Type Pin No Separate H/VTiming Chart IBM VesaMemo Disassembly and Reassembly DisassemblyReassembly Alignments and Adjustments General Alignment InstructionAdjustment Instruction Service functionTroubleshooting No PowerNo Video PC Signal No Picture TV, Video, S-Video No Sound Exploded View and Parts List 1 LTM1555B 2 LTM1555B Front 3 LTM1555B Rear 3 LTM1555B Stand 1 LTM1755B 2 LTM1755B Front 3 LTM1755B Rear 3 LTM1755B Stand Electrical Parts List PCB INDUCTOR-AXIAL SCREW-TAPTITER27 ES15UO ES15UO SNALoc. No Code No AL,SMD CERAMIC,CHIPCERAMIC,CHIP AL,SMD Organic CERAMIC,CHIP AL,SMD C43 C533 C619 INDUCTOR-SMD 74F14,INVERTER,SOP,14P,150MILINDUCTOR-SMD Coil CHOKE-SMD PCB Main TR-SMALL Signal Chip R128 R240 R330 R383 R461 R549 Assy Cover Rear Assy REAR-COVER Bracket Vesa COVER-REAR STD+C/R+C/R Assy LCD Assy ChassisES15UO SNA LXA410TLMU,PE,-,WHITE CBF SignalLever Bottom Label BAR Code BOX 15P,3R,FEMALE,ANGLE,AUF GasketES17UO 2P,-,AU,WHT/REDCORE-FERRITE Bead AL,SMD CERAMIC,CHIP C153 AL,SMD CERAMIC,CHIP CERAMIC,CHIP AL,SMD C510 C610 CN62 IC-CMOS Logic 2007-000132 R15 R2554 R349 R436 R610 R621 EOS/NIKE,EGI,T1.2 Assy LCD Assy Chassis Assy P/MATERIALGH17LS VIRTUAL,HDTV,ABS V0,GR806PM170MP,PE-LD,PE-HD,-,WHITE M170MP,PE-HD,-,BLUEBlock Diagram Block Diagrams Wiring Diagram CN12 CN11 CN51 CN24 CN25Schematic Diagrams Schematic Diagrams Power Eosventsc Part Schematic Diagram10-2 Micom / Jack Part Schematic Diagram Hpdr10-4 Scalar Eosventsc Part Schematic Diagram JAG10-6 Video Eosventsc Part Schematic Diagram FBL1 FBL2 RIN1 GIN110-8 Audio Part Schematic Diagram OUT GND10-10 Lvds & RAM Eosventsc Part Schematic Diagram VDD4 VSS110-12 Panel Description SECMemo Copyright