JVC XM-R70 manual Troubleshooting Guide, Specifications, Problem, Check this

Troubleshooting Guide

Before requesting service for this unit, check the chart below for a possible cause of the problem you are experiencing. Some simple checks or a minor adjustment on your part may eliminate the problem and restore proper operation.

If you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve the problem, refer to the directory of Authorized Service Centers (enclosed with this unit) to locate a convenient service center, or consult your dealer for instructions.

Problem	Check this
Cannot operate.	Is the MD loaded? If not loaded, “NO DISC” will appear.
Cannot play the MD.	• Is the HOLD switch released?
	• Is the battery low?
	• Is the MD faulty? (Play other MD.)
	• Is there moisture condensation on the lens?
	(Wait for about an hour and then try again.)
Tracks on MD do not play in order.	Is the Repeat Play or Random Play selected?
Recording cannot be made on MD.	Is the accidental erasure prevention knob of the MD set to the open position?
	(Set it to the close position.)
Cannot hear music—too noisy.	• Is the headphones plug inserted all the way?
	• Is the plug dirty? (Wipe away dirt on the plug.)
	• Is music recorded on the MD? If not, “BLANK DISC” will appear.
TV picture is distorted.	Is the unit too near a TV or tuner? (If the TV or tuner is connected to a simple
	indoor antenna, connect it to an outdoor antenna.)
Power is not turned on.	Was the power source removed from the unit with the HOLD switches activated?
	(Release both HOLD switches and try to operate again.)

Specifications

Portable minidisc recorder

Type	:	Minidisc digital audio system
Sampling frequency	:	44.1 kHz
Compression /	: ATRAC method
expansion method
Number of channels: :		2 channels (stereo) / 1 channel (mono)
Frequency response	:	20 Hz to 20,000 Hz
Wow & flutter	: Unmeasurable
Input	: LINE IN: 100 mV / 47 kohms,
		OPTICAL: -23 to -14 dBm,

Power requirements	: DC 3.6 V (rechargeable battery), DC
	4.5 V (R6 size battery ⋅ 3), DC IN 6 V
Dimensions	: 81.7 ⋅ 19.5 ⋅ 88.9 mm
(W ⋅ H ⋅ D)	(excluding buttons and controls)
Mass	: Approx. 155 g (without battery)
AC adaptor (AA-R554)
Input power source	: AC 230 V, 50 Hz
Output voltage	: DC 6 V, 0.6 A

(*Same jack is used for LINE IN and OPTICAL)

MIC: 1.3 mV / 200 ohms to 2 kohms

Output: Headphones (3.5 mm dia. stereo ⋅ 1) 5 mW / ch at 10% THD / 16 ohms to 47 kohms

Design and specifications are subject to change without notice. US and foreign patents licensed from Dolby Laboratories Licensing Corporation.

Duration of battery :

	When Playing back	When recording
Rechargeable battery	10 hours	5 hours
(BN-R3610)
Alkaline batteries	25 hours	12 hours
(LR6-Panasonic)
Rechargeable battery
+	38 hours	18 hours
Alkaline batteries

*Above duration may differ depending on the ambi- ent temperature and conditions.

*A rechargeable battery (BN-R3610) is charged for 2 hours.

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