Samsung SyncMaster 320TSn-2, Service Manual

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4. Troubleshooting
DDC Input Process
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Connecting D-sub cable between the parallel port(printer port) of computer and Monitor
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The DDC input is available after entering the Service Mode. : Cancel the DDC Protection.
1: Open the file.
2: Select Port 1 (D-SUB) / Select Port 2(DVI) / Select Port 3(HDMI)
3: Select the DDC file.
4: Click the Next(OK) button.
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PC
Connecting to the parallel port of computer Connecting to Monitor