Sony GDM-5402 Operation Guide - Page 15

Troubleshooting Before contacting technical support, refer to this section. If thin lines appear on your screen (damper wires) The lines you are experiencing on your screen are normal for the Trinitron monitor and are not a malfunction. These are shadows from the damper wires used to stabilize the aperture grille and are most noticeable when the screen's background is light (usually white). The aperture grille is the essential element that makes a Trinitron picture tube unique by allowing more light to reach the screen, resulting in a brighter, more detailed picture. Damper wires On-screen messages If there is something wrong with the input signal, one of the following messages appears on the screen. If NO INPUT SIGNAL appears on the screen I NFORMA T I ON MON I TOR I S WORK I NG I NPUT 1 : NO I NPUT S I GNA L ACT I VA T E US I NG PC CHECK I NPUT SE L ECTOR CHECK WH I T E RED GR E E N B L UE S I GNA L CAB L E 1 The selected connector This message shows the currently selected connector (INPUT 1 or INPUT 2). 2 The input signal condition NO INPUT SINGAL This indicates that no signal is input, or that no signal is input from the selected connector. 3 The remedies One or more of the following messages may appear on the screen. • If ACTIVATE USING PC appears on the screen, try pressing any key on the computer, and confirm that your computer's graphic board is completely seated in the correct bus slot. • If CHECK INPUT SELECTOR appears on the screen, try changing the input signal (page 7). • If CHECK SIGNAL CABLE appears on the screen, check that the monitor is correctly connected to the computer (page 6). If OUT OF SCAN RANGE appears on the screen I NFORMA T I ON MON I TOR I S WORK I NG I NPUT 1 : 1 3 0 . 0 kHz / 7 5H z OUT OF SCAN RANGE CHANGE S I GNA L T I M I NG WH I T E RED GR E E N B L UE 1 The selected connector and the frequencies of the current input signal This message shows the currently selected connector (INPUT 1 or INPUT 2). If the monitor recognizes the frequencies of the current input signal, the horizontal and vertical frequencies are also displayed. 2 The input signal condition OUT OF SCAN RANGE This indicates that the input signal is not supported by the monitor's specifications. 3 The remedies CHANGE SIGNAL TIMING appears on the screen. If you are replacing an old monitor with this monitor, reconnect the old monitor. Then adjust the computer's graphic board to that the horizontal frequency is between 30 - 121 kHz, and the US vertical frequency is between 48 - 160 Hz. For more information, see "Trouble symptoms and remedies" on page 16. 15