Hitachi L42X01AU, L37X01AU manual Troubleshooting, When Following Messages Appear on the Screen

TROUBLESHOOTING

Before calling service technician, check the following tables first. If the problem is not be solved with the suggested procedures, contact your local dealer. For your safety, NEVER try to repair the product by yourself.

When Following Messages Appear on the Screen

Message	Condition / Action	Page
Power Save	This indicates it is in Power Save mode. (in RGB mode)	50
	The indicating lamp lights in orange.
	The unit cannot detect any signals from any input terminals.
No Sync. Signal	Ɣ Check if the cable is connected correctly and firmly.	16 ~	22
	Ɣ Check if the power of the external equipment is ON.
	Ɣ Check if the input selection matches the connection terminal.
	Ɣ Check if the PC is in Power Save mode or not.
Auto Adjust	This indicates that it is in the process of auto adjusting.	35
	(in PC input mode)
Invalid Mode	The unit receives unsupported signals.	55 ,	57
	Ɣ Check if the cable is connected correctly and firmly.	58
	Ɣ Check if the input signal is compatible with the specification of the television.
Not Available	This shows when the selected operation is not available.
Weak signal
	Ɣ Check aerial lead if it is disconnected/damaged/misaligned. (in DTT mode)
Bad or No signal
	Ɣ Check with your dealer if it is out of signal area or not. (in DTT mode)
Database is Empty

Symptom and Check List

Symptoms		Check list		Page
	Ɣ Check the Indicating lamp status (Off, Red, Green, or Orange).
	Ɣ Check the connection of the Power Cord and/or other cables.
No picture – no sound	Ɣ Check if the Main Power of the unit or external equipment is		16	~	23
	ON.
				50
	Ɣ Check if the TV mode is selected.
	Ɣ Check if the TV is in “Standby mode” or “Power Save mode”.
	Ɣ Adjust the values in “Picture menu” and “Audio menu”.
Snowy picture-poor sound	Ɣ Check the aerial connection and direction.
	Ɣ The TV station may have broadcast difficulties.			16
	Ɣ Try another channel.
	Ɣ Check the aerial connection and direction.
Multiple images-normal	Ɣ Fine tuning the TV.		16 ,		28
	Ɣ Check the connection of the external equipment.
sound
	Ɣ The TV station may have broadcast difficulties. Try another
	channel.
Intermittent interference	Ɣ Check if the source of interference is shielded well.
	Ɣ Remove those kinds of electrical devices away from the TV.
	Ɣ Check the volume level.		16 ~		20
Normal picture, but no	Ɣ Check if the	button has been press or not.
sound	Ɣ Make sure that the headphone is NOT connected.			23
	Ɣ Check the connection of the external equipment.

52