Philips BDL4620QL user manual Troubleshooting, Symptom Possible Cause Remedy

BDL4620QL

8.2.	Troubleshooting
Symptom		Possible Cause		Remedy
No picture is displayed		1.	The power cord is disconnected.	1.	Plug in the power cord.
		2.	The main power switch on the back of the	2.	Make sure the power switch is switched on.
			display is not switched on.	3.	Connect a signal connection to the display.
		3.	The selected input has no connection.
		4.	The display is in standby mode.
Interference displayed on the display or audible		Caused by surrounding electrical appliances or		Move the display to another location to see is the
noise is heard		fluorescent lights.		interference is reduced.
Color is abnormal		The signal cable is not connected properly.		Make sure that the signal cable is attached firmly
				to the back of the display.
Picture is distorted with abnormal patterns		1.	The signal cable is not connected properly.	1.	Make sure that the signal cable is attached
		2.	The input signal is beyond the capabilities of		firmly.
			the display.	2.	Check the video signal source to see if it
					is beyond the range of the display. Please
					verify its specifications with this display’s
					specification section.
Display image doesn’t fill up the full size of the		The zoom mode is not correctly set.		Use the Zoom mode or Custom zoom function
screen				in the Screen menu to fine tune display geometry
				and time frequency parameter.
Can hear sound, but no picture		Improperly connected source signal cable.		Make sure that both video inputs and sound
				inputs are correctly connected.
Can see picture but no sound is heard		1.	Improperly connected source signal cable.	1.	Make sure that both video inputs and sound
		2.	Volume is turned all the way down.		inputs are correctly connected.
		3.	[MUTE] is turned on.	2.	Press [ ] or [ ] button to hear sound.
		4.	No external speaker connected.	3.	Switch MUTE off by using the	[	]
					button.
				4.	Connect external speakers and adjust the
					volume to a suitable level.
Some picture elements do not light up		Some pixels of the display may not turn on.		This display is manufactured using an extremely
				high level of precision technology: however,
				sometimes some pixels of the display may not
				display.This is not a malfunction.
After-Images can still be seen on the display		A still picture is displayed for an over extended		Do not allow a still image to be displayed for
after the display is powered off. (Examples		period of time		an extended period of time as this can cause a
of still pictures include logos, video games,				permanent after-image to remain on the display.
computer images, and images displayed in 4:3
normal mode)

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