JVC Headphones HA W500RF EK User Manual

CORDLESS FM STEREO HEADPHONES  
HA-W500RF (EK)  
INSTRUCTIONS  
Printed in China  
J5500-115A  
J5500-115A  
© 2002 VICTOR COMPANY OF JAPAN, LIMITED  
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Thank you for purchasing this JVC product.  
Before you begin operating this unit, please read the instructions carefully to be  
sure you get the best possible performance.  
NAMES OF PARTS AND THEIR FUNCTIONS  
Transmitter  
If you have any questions, consult your JVC dealer.  
CAUTION  
6
To reduce the risk of electrical shocks, fire, etc.:  
3
1. Do not remove screws, cover or cabinet.  
2. Do not expose this appliance to rain or moisture.  
8
2
7
IMPORTANT  
FEATURES  
1. Installation  
Frequency modulation system which  
allows headphones to be used even  
in areas where the transmitter cannot  
be seen  
Reception range (up to 100 m (328 ft):  
using JVC measurement system)  
Rechargeable system with built-in  
Ni-Cd batteries provided  
Select a place which is level, dry  
and neither too hot nor too cold  
(between 0˚C and 35˚C /32˚F and  
95˚F).  
1
2
3
5
1
4
Keep away from direct sunlight.  
Do not put it too close to a heater.  
2. Power cord  
Large 40 mm dia. drivers for high-  
quality sound  
1 Power Indicator  
6 AC adaptor (J47127-001)  
Connects to a household AC outlet  
(AC 230 V, 50 Hz).  
Do not handle the power cord with  
wet hands!  
When an audio signal is input: The  
power automatically turns on and the  
indicator lights in green.  
Automatic Power On/Off transmitter  
Auto-level control circuit that auto-  
matically adjusts signals to the  
appropriate modulation level  
Single volume control adjusts the  
volume level of the left and right  
channels simultaneously  
Do not bend the power cord  
sharply.  
Note:  
The provided AC adaptor is exclusively  
for use with this unit.  
Do not connect to any other equipment.  
3. Malfunctions, etc.  
2 CHANNEL  
There are no serviceable parts  
inside. If anything goes wrong,  
unplug the power cord and consult  
your dealer.  
Adjusts the transmission frequency.  
7 DC Out (for Transmitter)  
3 Antenna  
Adaptable to any audio/visual equip-  
ment  
For use, pull out and stand it  
8 DC Out (for Receiver Charging)  
Do not insert any metallic object.  
Do not allow water to get inside.  
vertically.  
4 Audio input cord and plug  
1.5 m cord and 3.5 mm dia. stereo  
miniplug.  
5 DC IN (DC 9V Jack)  
Connect plug 7 (DC Out for  
Transmitter) on the AC adaptor.  
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5
NAMES OF PARTS AND THEIR FUNCTIONS  
CONNECTION  
How to connect to AV equipment  
Connection to HEADPHONES jack  
Receiver (Cordless Headphones)  
6
R
When connecting to a standard stereo phone jack  
(6.3 mm dia.)  
— Use the provided plug adaptor  
(Converts a stereo miniplug to a standard stereo  
phone plug)  
To HEADPHONES jack  
When  
1
2
3
connecting to a  
TV, audio amplifier,  
stereo minijack  
VCR, tape deck,  
video disc player,  
etc.  
L
5
3
When connecting to a monaural minijack  
— Use an optional plug adaptor  
4
2
(Converts a stereo miniplug to a monaural miniplug)  
1
1 POWER (Power switch)  
2 Power Indicator  
5 TUNING (Tuning control)  
Adjusts the reception frequency.  
The indicator lights in red when the  
power is turned on.  
6 Soft Comfort-Fit Headband  
Connection to LINE OUT or REC OUT terminals  
Also, the indicator lights in green  
during recharge.  
3 CHARGE (Charging input terminal)  
4 VOL. (Volume control)  
Adjusts the volume level of the left  
and right channels simultaneously.  
To LINE OUT or REC  
OUT terminals  
• For replacement ear pads, please consult with the dealer where  
you purchased the headphones.  
1
2
3
R-channel  
(red plug)  
Provided  
TV, audio amplifier,  
VCR, tape deck,  
video disc player,  
etc.  
connection cord  
L-channel  
(white plug)  
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7
CONNECTION  
POWER REQUIREMENTS OF HEADPHONES  
Connection to power supply  
Charging rechargeable Ni-Cd batteries  
To AC outlet  
(AC 230 V, 50 Hz)  
Plug polarities  
Provided exclusive  
AC adaptor  
Provided exclusive  
AC adaptor  
1
2
3
(J47127-001)  
(J47127-001)  
ø3.5 mm plug  
To DC 9 V jack  
To AC outlet  
1
2
3
ø2.5 mm plug To receiver CHARGE jack  
ø2.5 mm plug  
Note:  
Be sure to use the provided exclusive AC adaptor (J47127-001) for connection.  
Use of any other AC adaptor may cause a malfunction.  
To receiver CHARGE jack  
Ø 3,5 mm plug  
To DC 9 V jack  
1
2
3
1 Set the POWER switch on the headphones to OFF.  
RANGE OF USE  
The batteries cannot be charged when the switch is set to ON.  
2 Connect the DC out (for Receiver Charging) from the AC adaptor to the headphones.  
The usable area between the transmitter and the  
headphones is within a radius of max 100 m (based  
on measurements taken when placed in direct view  
in a straight line and no interference situation).  
3 Plug the AC adaptor into an AC outlet. The charger starts charging the batteries  
automatically.  
Charging time  
Max: 100 m (Under controlled ambient conditions)  
The battery can be fully charged in approx. 24 hours.  
Note:  
During recharge the indicator lights in green, which will start to blink rapidly near  
completion. Blinking will gradually slow down or turn off at completion.  
When done, unplug the DC plug from the battery.  
The usable area may differ depending on building structure, etc.  
The range becomes shorter in the following cases:  
Be sure to keep this unit  
Battery running time  
more than 0.5 m/1.64 ft  
away from concrete  
walls, metal furniture,  
etc.  
After charging is complete, you can use them continuously for approx. 20 hours.  
Tips for better use  
Be sure to charge the batteries within the temperature range of 10˚C ~ 35˚C  
In places such as inside an apartment  
with reinforced concrete walls, or when  
the transmitter and headphones are  
separated by obstacles such as steel-  
reinforced doors.  
When items such as  
metal furniture are  
situated nearby.  
(50˚F ~ 95˚F).  
Charging batteries that are not completely exhausted will cause efficiency to decline.  
Be sure to charge them after they have been completely exhausted.  
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CAUTIONS ABOUT THE  
CAUTIONS ABOUT CHARGING  
RECHARGEABLE BATTERY  
1. Be sure to use only this unit for charging.  
2. You can charge the rechargeable Ni-Cd batteries approx. 300 times.  
ATTENTION:  
3. Charging times differ depending on the temperature range or the amount of  
charge already in the batteries.  
The product that you have purchased contains a rechargeable battery. The  
battery is recyclable. At the end of its useful life, under various state and local  
laws, it may be illegal to dispose of this battery into the municipal waste  
stream. Check with your local solid waste officials for details in your area for  
recycling options or proper disposal.  
4. Excessive charging doesn’t result in malfunction.  
5. Battery life will decrease in cold places.  
6. If the usable time of fully-charged batteries decreasses by about half, replace  
them with new ones. When purchasing rechargeable Ni-Cd batteries, consult the  
dealer from whom you bought this product.  
Note:  
Be sure to consult your local dealer or JVC service counter for replacement  
of the rechargeable battery.  
If you attempt to disassemble this unit for purposes other than disposal, it may  
damage the unit.  
Exclusive Rechargeable Ni-Cd Batteries:  
J46514 (1.2 V, 600 mAh, 2 pcs/pack)  
7. Due to characteristics of the batteries, they expend their charge a little even  
when the power is turned off.  
Warning:  
8. Be sure to use the provided AC adaptor (model J47127-001)  
Do not open, the rechargeable battery may produce an electrical shock.  
If the batteries are used incorrectly, they may leak, heat or explode, and may cause  
fire, injury or soiling. Make note of the following:  
OTHER CAUTIONS  
1. Be sure to use the provided exclusive Ni-Cd battery. Do not use any other  
rechargeable Ni-Cd battery or dry cell battery.  
1. Caution! To avoid risk of fire or injury, do not attempt to charge non-rechargeable  
batteries.  
2. Do not throw the battery in a fire or heat it.  
2. Replace only with the same type recommended by the manufacturer.  
3. Do not deform, take apart, modify or directly solder the battery.  
4. Do not remove or damage the covering tube.  
3. Please dispose of old, defective batteries in an environmentally friendly manner  
in accordance with the relevant legislation.  
5. If any liquid from the battery gets into your eyes, it may cause blindness.  
If battery liquid does get into your eyes, do not rub them, but instead  
4. No naked flame sources, such as lighted candles, should be placed on the  
apparatus.  
immediately wash them thoroughly with clean water, then consult a doctor at  
once. Also, should any liquid from the rechargeable battery get onto your skin or  
clothes, it may burn your skin. In this case, wash with clean water immediately.  
5. The unit shall not be exposed to dripping or splashing and that no objects filled  
with liquids, such as vases, shall be placed on or by the unit.  
6. For indoors use only. Do not expose to rain.  
7. Don’t open, no user serviceable parts inside.  
6. Do not immerse or wet the battery in water.  
7. Do not use or leave the battery in an area where the temperature becomes  
significantly higher, such as in direct sunlight, inside a car on hot day or near  
heat-generating equipment.  
8. Do not subject the battery to strong shocks or throw it.  
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HOW TO USE  
HOW TO USE  
1. Connect the transmitter and AV equipment. (Refer to page 7)  
2. Connect the AC adaptor to the transmitter, then plug the AC adaptor into an  
AC outlet. (Refer to page 8)  
5. Adjust the volume control of the connected AV equipment and the  
headphones, and set them to the desired listening level.  
6. Turn the TUNING control to get the best reception in the headphones.  
3. Turn on the power on the transmitter and the connected AV equipment.  
In cases of interference or too much noise, select the CHANNEL switch on  
the transmitter to another position, then repeat step 6.  
To set optimum signal reception, adjustments  
should be done within a range of approx. 7 m  
between the transmitter and the headphones.  
Transmitter power  
When an audio signal is input, the transmitter’s power is turned on automatically, and the  
indicator lights in green. Also, when no audio signal is input for about a minute, the  
indicator goes out automatically and the power turns off. (Automatic Power On/Off function)  
The Automatic Power On/Off function is activated from audio on the left channel. The  
function may not activate properly in situations when the audio signal is detected only from  
the right channel.  
Within approx. 7 m  
VOL.  
MAX. MIN.  
In some situations, the power may not be turned on automatically by the input sound  
(e.g. a song with a quiet opening or gradual fade-in). This is not a malfunction.  
4. Turn on the headphones’ power. To avoid excessive volume, first set the  
headphones’ volume to a low level.  
Tips for better use  
For improved sound quality, set the volume level of the connected equipment as high as  
possible without causing distortion, while setting the volume level of the headphones to a  
slightly lower level.  
After use  
Keep the headphones’ power off.  
Notes:  
1. When using the headphones, don’t raise the volume excessively. Continuous listening  
for a long time at high volumes may damage your hearing.  
2. For safety reasons, do not use the headphones while riding a bicycle or driving a  
motorcycle, car, etc.  
Before using the headphones for the first time, charge the rechargeable Ni-Cd battery.  
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13  
TROUBLESHOOTING  
SPECIFICATIONS  
What appears to be a malfunction may not always be serious. First make  
sure...  
General Specifications  
Modulation system  
Carrier frequency  
: Stereo frequency modulation system  
: 863 – 865 MHz  
Symptoms  
Cause  
Remedy  
Usable area  
(distance to reach)  
No sound.  
Is the transmitter’s power OFF?  
Check the connection of the  
transmitter.  
: Max. 100 m (328 ft)  
(using JVC measurement systems, under controlled  
ambient conditions)  
Turn the power on the connected  
AV equipment ON and start  
playing.  
Frequency response  
Distortion  
: 30 – 15,000 Hz  
Is the headphones’ power OFF?  
Turn on the headphones’ power.  
(The indicator lights.)  
: Less than 4% (at 1 kHz)  
Transmitter (J22121-001)  
Power requirements  
Audio input terminal  
Input impedance  
Is the battery in the headphones  
exhausted?  
Fully charge the headphones.  
: DC 9 V (with the exclusive AC adaptor)  
Is the volume of the headphones Adjust the volume of the head-  
set to the minimum level? phones to the appropriate level.  
: 3.5 mm dia. stereo miniplug  
: 25k  
Is the volume of the connected AV Raise the volume level of the  
equipment set to the minimum  
level?  
connected AV equipment as high  
as possible without causing  
distortion.  
Reference input level  
Dimensions  
: 300 mV  
: 100 (W) x 100 (D) x 106 (H) mm  
(3-15/16” x 3-15/16” x 4-3/16”) (including antenna)  
Connect them with an optional plug  
adaptor. (Converts monaural audio  
output to stereo audio output.)  
No sound from  
the R-channel.  
Is the transmitter connected to  
equipment with monaural audio  
output?  
Mass  
: 115 g (4.1 oz) (without connection cord and AC adaptor)  
Headphones (HA-W500RF)  
Distorted sound.  
Is the battery in the headphones  
exhausted?  
Fully charge the headphones.  
Power requirements  
Battery running time  
Mass  
: Rechargeable Ni-Cd battery (1.2 V) x 2  
Is the volume of the connected AV Adjust the volume level of the  
equipment set too high?  
: 20 hours (when charged for 24 hours)  
connected AV equipment as high  
as possible without causing  
distortion.  
: 280 g (9.9 oz)  
(with installed rechargeable Ni-Cd battery x 2)  
Noisy sound.  
Is the battery in the headphones  
exhausted?  
Fully charge the headphones.  
Provided Accessories  
Instructions  
AC adaptor  
x 1  
x 1  
Turn the TUNING controls on the  
headphones or select the  
CHANNEL on the transmitter to  
adjust them.  
Are the frequency modulation  
signals being received correctly?  
Connection cord x 1 (3.5 mm dia. stereo minijack — RCA pin plug x 2: 0.1 m (0.3 ft))  
Plug adaptor  
x 1 (converts 3.5 mm dia. stereo miniplug to a 6.3 mm dia.  
standard stereo phone plug)  
Is the volume of the connected AV Adjust the volume level of the  
equipment set too low?  
connected AV equipment as high  
as possible without causing  
distortion.  
Use them within the range the  
frequency modulation signal can  
reach. (Refer to page 8.)  
Are the headphones too far away  
from the transmitter?  
Replace it with a new Ni-Cd  
battery. Please consult your dealer  
for replacement.  
Battery charging  
is impossible.  
Has the rechargeable Ni-Cd  
battery expired?  
* Design and specifications subject to change without notice.  
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