Samsung GH17LS specifications No Video

Page 16

5-2 No Video

Check signal cable connection and power.

Does the X101 and X201 oscillate properly?

12

Yes

There R, G, B input are at R103, R107 and R108?

Yes

There sync. and data output are

R260, R261, R211, R213, and RA201 ~ RA212?

3

 

4

 

5

 

6

Yes

There proper signal input are

Pin 66, 65, 64, and 11 of IC102?

5

 

3

 

4

 

6

Yes

Does the output signal appear at

R121 ~ R130 R132, R135, R136, and R138 ~ R144?

7

Yes

There are DC 5V at Pin 1, 2 and 3 of CN102?

Yes

There are DC 12V, DC5V and DC 3.3V at

Pin 10, 11, 12 ; Pin 7 and Pin 4 of CN104?

No

No

No

No

No

No

No

5 Troubleshooting

Replace that or

check related circuit.

Check input part.

Please check the power related

IC202 and output part.

Check IC102 and related circuit.

Check the LVDS_EN at

R118 is high or not.

Normal state is high.

Check the Power

and related circuit.

Please check the Inverter

and related circuit.

GH17LS/GH17ES

5-3

Image 16
Contents TFT-LCD Monitor BN68-00225C-00 Copyright Precautions Safety PrecautionsServicing Precautions Electrostatically Sensitive Devices ESD PrecautionsProduct Specifications SpecificationsPin Assignments Type Pin No Separate CompositeTiming Chart IBM VesaMemo Disassembly and Reassembly DisassemblyReassembly Alignments and Adjustments RS232 Jig SetupRequired Equipment Changing BoardAlignments and Adjustments Troubleshooting No PowerTroubleshooting No Video Waveforms Exploded View and Parts List GH17LS GH17ES Electrical Parts List Main PCB PartsElectrical Parts List Code No IC-TTL TR-SMALL Signal Chip R149 GH17LS/GH17ES R278 Others Memo Block Diagram Block Diagrams Wiring Diagram Memo Schematic Diagrams Schematic Diagrams 10-3 10-4 Panel Description SECPanel Description