JVC HA-SU700 Service Manual
HA-SU700 (E)
SERVICE MANUAL
SURROUND SOUND STEREO HEADPHONES
HA-SU700 (E)
Specifications
1. Instructions
2. Disassembly
3. Servicing Guidelines
4. Block View Inside IC
5. Block Diagram
6. Wiring Diagram
7. Print Circuit Board
8. Schematic Diagram
9. Electric Parts List
10. Exploded View
11. Mechanical Parts List
12. Packing Method
13. Packing Materials Parts List
14. Accessories List
Specifications
General Specifications
Frequency response : 18 Hz 22,000 Hz
Power supply : AA (R6P) battery x 2 (DC 3 V)
Cord : 7 m (22.97 ft)
Mass : 280 g (9.88 oz)
(including AA (R6P) battery x 2, without cord)
When SRS is on
Input impedance : 500 Ω
Distortion : Less than 0.3 (at 1 kHz)
Battery running time : Approx, 70 hours (when manganese battry is used)
Approx, 140 hours (when alkaline battry is used)
(running time varies depending on the conditions of use.)
When SRS is off
Sensitivity : 94 dB/1 mW
Contents
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Front cover
2
6
7
8
8
9
10
11
12
13
13
14
14
14
Provided Accessories
Instructions x 2
24K gold-plated plug adaptor x 1 (converts 3.5 mm Stereo mini plug to
6.3 mm Standard stereo plug)
AA (R6P) battery x 2
*Design and specifications subjsct to change without notice.
COPYRIGHTC2002 VICTOR COMPANY OF JAPAN,LIMITED.
No.70266
Apr.2002
HA-SU700 (E)
©2002 VICTOR COMPANY OF JAPAN, LIMITED.
VICTOR COMPANY OF JAPAN, LIMITED
J5500-112A
SURROUND SOUND STEREO HEADPHONES
SURROUND SOUND-STEREO-KOPFHÖRER
CASQUE STÉRÉO SURROUND
CUFFIE STEREO AD EFFETTO SURROUND
HA-SU700 (E)
ENGLISH
DEUTSCH
FRANÇAIS
ITALIANO
INSTRUCTIONS
BEDIENUNGSANLEITUNG
MANUEL D’INSTRUCTIONS
ISTRUZIONI
SPECIFICATIONS
General Specifications
Frequency response : 18 Hz — 22,000 Hz
Power requirements : AA (R6P) battery x 2 (DC 3V)
Cord length : 7 m (22.97 ft)
Mass : 280 g (9.88 oz) (including AA
(R6P) battery x 2, without cord)
When SRS is on
Input impedance : 500 Ω
Distortion : Less than 0.3% (at 1 kHz)
Battery running time : Approx. 70 hours (when
manganese battery is used)
Approx. 140 hours (when alkaline
battery is used) (running time
varies depending on the conditions
of use.)
When SRS is off
Sensitivity : 94 dB/1 mW
Provided Accessories
Instructions x 2
24K gold-plated plug adapter x 1 (converts ø3.5 mm stereo
miniplug to ø6.3 mm standard stereo plug)
AA (R6P) battery x 2
*
Design and specifications subject to change without
notice.
ENGLISH
FRANÇAIS
DEUTSCH
ITALIANO
CARACTERISTIQUES
Caractéristiques générales
Réponse en fréquence : 18 Hz — 22.000 Hz
Alimentation : 2 piles AA (R6P) (3 Vcc)
Longueur du cordon : 7 m
Poids : 280 g (avec deux piles AA (R6P),
sans cordon)
Interrupteur SRS enclenché
Impédance d’entrée : 500 Ω
Distorsion : Inférieure à 0,3% (à 1 kHz)
Autonomie des piles : Environ 70 heures (avec piles au
manganèse)
Environ 140 heures (avec piles
alcalines) (l’autonomie dépend des
conditions d’utilisation.)
Interrupteur SRS coupé
Sensibilité : 94 dB/1 mW
Accessoires fournis d’origine
2 Modes d’emploi
1 Adaptateur de fiche plaqué or 24 carat (conversion de la
minifiche stéréo ø3,5 mm en fiche stéréo standard ø6,3 mm)
2 piles AA (R6P)
*
Modèle et caractéristiques sous réserve de modification
sans avis préalable.
TECHNISCHE DATEN
Allgemeine Angaben
Frequenzgang : 18 Hz — 22.000 Hz
Stromversorgung :
2 Mignonbatterien (AA/R6P), (3V DC)
Kabellänge : 7 m
Gewicht : 280 g (inkl. 2 Mignonbatterien
(AA/R6P), ohne Kabel)
Bei eingeschalteter SRS-Funktion
Eingangsimpedanz : 500 Ω
Klirrfaktor : < 0,3% (bei 1 kHz)
Batteriebetriebsdauer : ca. 70 Std. bei Verwendung von
Manganbatterien
ca. 140 Std. bei Verwendung von
Alkalinebatterien (Die
Betriebsdauer hängt von den
Einsatzbedingungen ab.)
Bei ausgeschalteter SRS-Funktion
Kennschalldruck : 94 dB / 1 mW
Mitgeliefertes Zubehör
2 Bedienungsanleitungen
Vergoldeter Adapter (24 K) zur Umsetzung von ø3,5 mm
Stereo-Miniklinke auf ø6,3 mm Stereo-Standardklinke
2 Mignonbatterien (AA/R6P)
*
Änderung der Ausstattungsmerkmale und der technischen
Daten ohne vorherige Ankündigung vorbehalten.
CARATTERISTICHE TECNICHE
Caratteristiche generali
Risposta in frequenza : 18 Hz — 22.000 Hz
Alimentazione : Batteria AA (R6P) x 2 (DC 3V)
Lunghezza del cavo : 7 m
Massa : 280 g [incluse due batterie AA
(R6P), senza cavo]
Con SRS in posizione ON
Impedenza in ingresso : 500 Ω
Distorsione : Inferiore a 0,3% (a 1 kHz)
Autonomia delle batterie : Circa 70 ore (con batterie al
manganese)
Circa 140 ore (con batterie
alcaline) (l’autonomia delle batterie
dipende dalle condizioni d’uso)
Con SRS in posizione OFF
Sensibilità : 94 dB/1 mW
Accessori forniti in dotazione
Istruzioni x 2
Adattatore per spinotto placcato in oro a 24K (converte
miniplug stereo ø3,5 mm in spinotto stereo standard ø6,3 mm)
2 pile AA (R6P)
*
Il design e le caratteristiche tecniche sono soggetti a
modifiche senza preavviso.
1.Instructions
2(No.70266)
“SOME DO’S AND DON’TS ON THE SAFE USE OF EQUIPMENT
”
This equipment has been designed and manufactured to meet international safety standards
but, like any electrical apparatus, care must be taken if you are to obtain the best results and
safety is to be assured.
Do
read the operating instructions before you attempt to use the equipment.
Do
ensure that all electrical connections (including the plug, extension cord and inter-
connections between pieces of equipment) are properly made and in accordance
with the manufacturer
’s instructions. Switch off and withdraw the plug when making
or changing connections.
Do
consult your dealer if you are ever in doubt about the installation or operation or
safety of your equipment.
Do
be careful with glass panels or doors on equipment.
DON’T
continue to operate the equipment if you are in any doubt about it working normally,
or if it is damaged in any way
– switch off – withdraw the plug and consult your
dealer.
DON’T
remove any fixed cover as this may expose dangerous voltages.
DON’T
leave equipment switched on when it is unattended unless it is specifically stated that
it is designed for unattended operation or has a standby mode. Switch off using the
switch on the equipment and make sure that your family know how to do this.
Special arrangements may need to be made for infirm or handicapped people.
DON’T
use equipment such as personal stereos or radios so that you are distracted from the
requirements of road safety. It is illegal to watch television when driving.
DON’T
listen to headphones at high volume as such use can permanently damage your
hearing.
DON’T
obstruct the ventilation of the equipment, for example with curtains or on soft
furnishings.
Overheating will cause damage and shorten the life of the equipment.
DON’T
use makeshift stands and NEVER fix legs with wood screws. To ensure complete
safety always fit the manufacturer
’s approved stand or legs with the fixing screws
supplied according to the instructions.
DON’T
allow electrical equipment to be exposed to rain or moisture.
ABOVE ALL
NEVER let anyone especially children push anything into holes, slots or any other opening in
the case. This could result in a fatal electrical shock.
NEVER guess or make changes with electrical equipment of any kind.
It is better to be safe than sorry!
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO
RAIN OR MOISTURE.
AVERTISSEMENT:
POUR RÉDUIRE LES RISQUES D
’INCENDIE OU
DE CHOC ÉLECTRIQUE, NE PAS EXPOSER CET
APPAREIL À LA PLUIE NI À L’HUMIDITÉ.
Gebruikte batterijen
Niet weggooien,
maar inleveren als KCA.
HA-SU700 (E)
(No.70266)3
HA-SU700 (E)
ENGLISH
FEATURES
● Built-in surround sound circuit, exclusively designed for headphones.
● Surround sound control allows surround effects to be switched and adjusted
according to listener preference.
● Soft comfort-fit headband automatically adjusts to fit the listener
’s head.
● Usable as headphones with volume control.
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.
If you have any questions, consult your JVC dealer.
1
2
3
4
5
6
7
8
and
symbol are trademarks of SRS Labs, Inc.
2
ON/OFF (Power/Surround Switch)
Switches Power and Surround ON or OFF
simultaneously.
When the SRS switch is turned to ON, the
HA-SU700’s power turns on, and the Surround
circuit operates.
To save battery power, be sure to turn the SRS
switch OFF when not in use.
3
SURROUND (Surround level control)
Allows surround effect level to be adjusted
(when Surround is ON).
4
VOL (Volume control)
Enables headphone volume adjustment.
5
Soft comfort-fit headband
Automatically adjusts head band to fit when you
put the headphones on your head.
6
Battery Cover
Open this cover and insert two AA (R6P)
batteries in the battery compartment to use
these headphones as surround sound
headphones.
7
Audio input cord and plug
7 m cord and 3.5 mm dia. stereo miniplug.
8
Plug adapter
Converts a stereo miniplug to a standard stereo
plug.
1
SRS (Power/Surround Indicator)
Indicates Power/Surround ON and OFF.
Lit : Power and Surround are ON.
Unlit :Power and Surround are OFF.
NAMES OF PARTS AND THEIR FUNCTIONS
technology is incorporated under license from SRS Labs, Inc.
How to insert batteries
TROUBLE SHOOTING
What appears to be a malfunction may not always be serious. First, make sure
to check the following.
1
Remove the
battery cover on
the right side of
the headphones.
2
Insert two AA
(R6P) batteries
as shown, and
then close the
cover.
When to replace the batteries
You will need to replace the batteries when the indicator becomes dim and/or sound is
distorted when the SRS switch is ON.
Note:
Turn down the volume of connected audio source equipment to minimum when inserting or removing
the headphone plug. Otherwise the HA-SU700 and/or the connected device may be damaged.
Do not connect headphones to the line output terminals. You will be unable to obtain
sufficient volume.
When the SRS switch is turned ON or OFF, you may hear a clicking noise.
Turn the volume of the HA-SU700 down to minimum when turning the SRS switch ON or OFF.
Even at the same volume position, the headphone volume may vary depending on the SRS switch
position. Volume is also affected by the connected device and the HA-SU700
’s surround level.
Depending on the connected device, noise may be produced by interference with the headphone
terminal. In this case, turn up the volume of the connected device as high as it will go without
distorting the sound, and turn down the volume of HA-SU700. This might help reduce the noise.
Problems
No sound/
low sound
Sound
distortion
No surround
effect
Measures (Remedy)
䡲
Check the volume of connected device.
䡲
Adjust the headphone sound volume.
䡲
Replace the batteries.
䡲
Adjust the headphone sound volume, after turning down the volume of
connected device to a level where the sound is not distorted.
䡲
Replace the batteries.
䡲
Surround effects cannot be obtained if the input sound is monaural.
Serious malfunction
If a serious malfunction occurs, stop using the unit immediately and consult your local JVC dealer.
4(No.70266)
HA-SU700 (E)
ENGLISH
CAUTIONS
Headphones
1
For your safety
…
• Never use the headphones when driving a car, motorcycle, or bicycle. This could result in an accident.
• Pay close attention to traffic around you when using the headphones while walking. Not doing so could
result in an accident.
• Be careful not to turn the sound volume up too high when using the headphones. Your hearing can be
damaged by listening to sounds at excessive volume for long periods.
• Do not disassemble or modify the headphones.
• Do not allow inflammables, water or metallic objects to enter the headphones.
2
Avoid using the headphones
…
• in places subject to excessive humidity or dust.
• in places subject to extremely high (over 40
°C or 104°F) or extremely low (under 0
°C or 32°F)
temperatures.
3
DO NOT leave the headphones
…
• in direct sunlight.
• near a heater.
4
To protect the headphones, DO NOT
…
• allow them to get wet.
• drop them or strike them against hard objects.
䡲 Be careful not to add power that exceeds the headphones
’ input capacity. This may result in distorted sound and
could damage the oscillation board.
䡲 When disconnecting the headphones, grasp the headphone plug. Do not pull on the cord.
Battery
If the batteries are used incorrectly, they may leak, heat or explode, and may cause fire, injury or soiling.
Make note of the following:
1
Use only AA (R6P) batteries.
2
Use only the batteries specified for use with these headphones.
3
Insert batteries with the (+) and (
–) polarities correctly positioned, following the indications on the
equipment.
4
Do not use a new battery with an old one, and do not use batteries holding different amounts of charge
together.
5
Do not throw batteries in a fire or heat them.
6
Do not short-circuit the positive (+) and negative (
–) terminals. Also, do not carry or store them with small
metallic objects such as necklaces or coins.
7
Do not deform, take apart, modify or directly solder the batteries.
8
Do not remove or damage the covering tube.
9
If you notice phenomena that has never happened before, such as leakage, colour change or deformity,
stop using the batteries.
10
If any liquid from the batteries gets into your eyes, it may cause blindness. If battery liquid does get into
your eyes, do not rub them , but instead immediately wash them thoroughly with clean water, then
consult a doctor at once. Also, should any liquid from the rechargeable batteries get onto your skin or
clothes, it may burn your skin. In this case, wash with clean water immediately.
11
Do not immerse or wet the batteries in water.
12
Do not use or leave the batteries in an area where the temperature becomes significantly higher, such as
in direct sunlight, inside a car on a hot day or near heat-generating equipment.
13
Do not subject the batteries to strong shocks or throw them.
14
When discarding the batteries, cover the positive (+) and negative (
–) terminals with adhesive tapes.
15
Be sure to read the cautions on the batteries.
(No.70266)5
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