Troubleshooting Guide; Specifications - JVC XM-R70 Instructions Manual

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
Cannot operate.
Cannot play the MD.
Tracks on MD do not play in order.
Recording cannot be made on MD.
Cannot hear music—too noisy.
TV picture is distorted.
Power is not turned on.

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,
(*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
Duration of battery :
Rechargeable battery
(BN-R3610)
Alkaline batteries
(LR6-Panasonic)
Rechargeable battery
+
Alkaline batteries
* Above duration may differ depending on the ambi-
ent temperature and conditions.
* A rechargeable battery (BN-R3610) is charged for 2
hours.
Is the MD loaded? If not loaded, "NO DISC" will appear.
• 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.)
Is the Repeat Play or Random Play selected?
Is the accidental erasure prevention knob of the MD set to the open position?
(Set it to the close position.)
• 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.
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.)
Was the power source removed from the unit with the HOLD switches activated?
(Release both HOLD switches and try to operate again.)
When Playing back
10 hours
25 hours
38 hours
Check this
Power requirements : DC 3.6 V (rechargeable battery), DC
4.5 V (R6 size battery
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
Design and specifications are subject to change without notice.
US and foreign patents licensed from Dolby Laboratories
Licensing Corporation.
When recording
5 hours
12 hours
18 hours
), DC IN 6 V
16