Samsung P2270HD Service Manual

Also see for P2370HD - Full 1080p HDTV LCD Monitor: Manual User manual Quick start guide Quick setup guide Specifications

4-104. Troubleshooting4-5. HDMI No ScreenSymptom The LED power turns on but the screen is blank when the HDMI cable is connected.-MajorcheckpointsCheck the HDMI cable connections.Check whether the LVDS cable is connected correctly to the panel.Check whether the lamp connector of the panel is connected correctly to the IP board.Check the circuit related HDMI input and scaler operation.----DiagnosticsMain Board FrontCN1005CN6009YesNoDoes led persists green light afterpower on? Check IP boardYesNoDose proper 5V appear at pin No.18 of CN6009? Check HDMI cable connectionYesNoDoes proper signals appear at pinNo.15(SCL) ⑧and No.16(SDA) ⑨ of CN6009?Change IC6002NoDoes proper clock signals appearat pin NO.9 and NO.10 of D6005? Change D6005YesNoDoes proper clock signals appearat pin NO.11,12,23,24 of CN1005?Change main boardbecause of scaler problemYesCheck connection between mainboard and panel.Change Panel.Caution Make sure to disconnect the power before working on the IP board.