Sharp CD-DD4500 Troubleshooting Chart, Symptom, Possible cause, Playback does not start

Troubleshooting Chart

Many potential “problems” can be resolved by the owner without calling a service tech- nician. If something is wrong with this product, check the following before calling your authorized SHARP dealer or service center.

■ General

	Symptom	Possible cause
	● The clock is not on time.	● Did a power failure occur?
		Reset the clock. (Refer to page 17.)
	● When a button is pressed, the unit	● Set this unit to the power stand-by mode
	does not respond.	and then turn it back on.
		● If the unit still malfunctions, reset it.
–		(Refer to page 42.)
	● No sound is heard.	● Is the volume level set to “0”?
References TroubleshootingChart
		● Are the headphones connected?
		● Does the speaker cord run past other
		● Are the speaker wires disconnected?
	● The balance between the left and	● Are the front and surround speakers
	right channels is bad.	connected to the correct left and right
		channels?
		● If an external unit is connected, are the
		left and right channels connected prop-
		erly?
	● Hum or excessive noise.	● Is the speaker cord plugged in correctly?
–		electronic equipment?
		● Are the plugs or terminals dirty?
	● No sound is heard, or the sound	● Is the “SP SIZE” item set to “NO” in the
	is too low, from the center or sur-	“SET UP” operation (page 31)?
	round speakers.	● Is the volume too low?
	● The TIMER indicator is flashing.	● Is the speaker wire shorted?
		● Was the unit used at high volume for
		many hours?

■ CD player

Symptom	Possible cause
● Playback does not start.	● Is the disc loaded upside down?

●Playback stops in the middle or is ● Does the disc satisfy the standards?

not performed properly.● Is the disc distorted or scratched?

●Playback sounds are skipped, or ● Is the unit located near excessive vibra-

stopped in the middle of a track.	tions?
	● Is the disc very dirty?
	● Has condensation formed inside the
	unit?

■Tuner

Symptom Possible cause

●Radio makes unusual noise con- ● Is the unit placed near the TV or com-

secutively.	puter?
	● Is the FM/AM loop antenna placed prop-
	erly?
	Move the AC power cord away from the
	antenna if located near.

■ Cassette deck

Symptom	Possible cause
● Cannot record.	● Is the erase-protection tab removed?
● Cannot record tracks with proper	● Is it a normal tape?
sound quality.	● (You cannot record on a metal or CrO2
● Cannot erase completely.	tape.)
● Sound skipping.	● Is there any slack?
	● Is the tape stretched?
● Cannot hear treble.	● Are the capstans, pinch rollers, or heads
● Sound fluctuation.	dirty?
● Cannot remove the tape.	● If a power failure occurs during playback,
	the heads remain engaged with the tape.
	Do not open the compartment forcibly.
	Wait until electricity resumes.

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