SAMSUNG GS17CSSS_EDC Service Manual Troubleshooting

5 Troubleshooting

Notes: 1. Before troubleshooting, setup the PC’s display as below.

• Resolution: 1280 x 1024

• H-frequency: 64 kHz

• V-frequency: 60 Hz

2. If no picture appears, make sure the power cord is correctly connected.

3. Check the following circuits.

• No raster appears: Function PBA, Main PBA, I/P PBA

• 5V develop but no screen: Main PBA

• 5V does not develop: I/P PBA

4. If you push and hold the “ (Enter/Auto)” button for more than 5 seconds, the monitor automatically returns to the factory preset.

5-1 No Power

When Pin 4 of CN600 is 0V

does proper DC 13V, 5V

appear at Pin 1, 2 and 6, 7 of

CN600 separately?

Yes

When Pin 4 of IC600 is DC 0.5V

does proper DC 0.5V appear at

Pin 5 and 6 of IC600?

Yes

When Pin 2, 3 of IC601 is

DC 3.3V does proper DC 4.3V

appear at Pin 1 of IC601?

Yes

When Pin 2, 3 of IC601 is

DC 4.3V does proper DC 2.5V

appear at Pin 4 of IC601?

❇

Yes

Check Function Ass’y.

Change IP Board.

Check IC600 and related circuit.

Check IC601 and related circuit.

* 0V means power on state.

When the monitor work well except DPMS and power switch off, 0V should be applied to number 4 of CN600.

GS17CS 5-1

5 Troubleshooting

5-2 No Audio

Check Stereo Cable.

When Pin 2 of IC600 is DC 5V does proper DC 13V appear at

Pin 7, 8 of IC600?

Yes

When Pin 1 of IC502 is DC 13V

does proper DC 6V appear at

Pin 3 of IC502?

Yes

Does the signal appear at

Pin 4, 6 of IC500?

Yes

Does the signal appear at

Pin 9, 12, 13, and 16 of IC500?

Yes

Check IC600 and related circuit.

Check IC502 and related circuit.

Check Audio PBA and Sound Source.

Check IC500 and related circuit.

Check Specker and Audio Ass’y.

5-2 GS17CS

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