4-144. Troubleshooting4-7-3. DDC EntryConnect the parallel port (printer port) of the PC with the D-SUB cable of the monitor to be upgradedDDC file name932MW: SM932MWA/SM932MWD/SM932MWH2032MW: SM2032MWA/SM2032MWD/SM2032MWHYou must enter service mode to enter DDC : Release DDC ProtectionOpen fileSelect port 1(D-SUB) / Select port 2(DVI) / Select port 3(HDMI)(Use DVI-to-HDMI cable)Select DDC fileClick Next(OK) button1.2.3.4.PCPCConnect to computer printer port Connect to monitor to be upgraded1234