Sherwood ST-670 Troubleshooting Guide, Remote Control Unit, MAIN UNITVR-670 AMPLIFIER SECTION

Troubleshooting Guide

If a fault occurs, run through the table below before taking your system for repair.

If the fault persists, attempt to solve it by switching the unit off and on again. If this fails to resolve the situation, consult your dealer. Under no circumstances should you attempt to repair the unit yourself. This could void the warranty.

REMOTE CONTROL UNIT

PROBLEM	POSSIBLE CAUSE	REMEDY
No operation	• Batteries are not loaded or exhausted.	• Replace the batteries.
	• The remote sensor is obstructed.	• Remove the obstacle.

MAIN UNIT(VR-670)

[AMPLIFIER SECTION]

PROBLEM	POSSIBLE CAUSE	REMEDY
No power	• The AC input cord is disconnected.	• Connect the cord securely.
	• Poor connection at AC wall outlet or the outlet is	• Check the outlet using a lamp or another
	inactive.	appliance.
No sound	• The speaker cords are disconnected.	• Check the speaker connections.
	• The volume is adjusted too low.	• Adjust the volume.
	• The MUTING button on the remote control is	• Press the MUTING button to cancel the muting
	pressed to ON.	effect.
	• Incorrect selection of the input source.	• Select the desired input source correctly.
	• Incorrect connections between the components.	• Make connections correctly.
Noise or distorted sound	• Poor connections.	• Check the connections and connect all cords
		securely.

[DVD PLAYER SECTION]

PROBLEM	POSSIBLE CAUSE	REMEDY
No playback	• The disc is loaded upside down.	• Reload the disc with the printed side up.
	• The disc is not playable.	• Use a playable disc.
	• The disc is dirty.	• Clean the disc.
	• The rating level is not set correctly.	• Set the rating level setting correctly.(Refer to
		“When selecting the Parental Control” on page 39.)
	• The symbol about invalid operation is displayed.	• Adjust the setting correctly.(Refer to “SYMBOL
		ABOUT INVALID OPERATION” on page 18.)
Malfunction	• The disc is scratched or dirty badly.	• Unplug the AC input cord, then plug it again.
No picture	• The video cords are disconnected.	• Connect the cords correctly.
	• The incorrect selection of input source on the TV.	• Select the input source correctly.
	• The disc is not playable.	• Use a playable disc.
Noisy or distorted picture	• The unit is connected to a VCR directly and the	• Connect the unit so that the picture signal is
	copyguard function is activated.	transferred directly to the TV.
	• The disc is dirty.	• Clean the disc.
	• It is in rapid advance or reverse playback, or in	• Sometimes a small amount of picture distortion
	frame advance playback.	may appear. This is not malfunction.
Abnormal or no picture	• The component video output signal is not	• Select the component video output signal correctly.
	selected correctly.	(Refer to “CHANGING THE COMPONENT
		VIDEO OUTPUT SIGNAL” on page 32.)
Slight pause of picture	• The layer transition occurs during playback of	• Sometimes slight pause may occur.
	DVD Videos recorded in dual-layer format.	This is not malfunction.
Noise or distorted sound	• The disc is dirty.	• Clean the disc

ENGLISH

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