JVC HA RF100SJ Service Manual

SERVICE MANUAL

WIRELESS ENTERTAINMENT SYSTEM

HA-RF100S (J)

Specifications

General Specifications

Modulation system : Stereo frequency modulation system Carrier frequency : 911 MHz --- 914 MHz Usable area (distance to reach) : Approx. 150 ft (46 m) (using JVC

measurements systems)

Distortion : Less than 4 % (at 1 kHz)

Transmitter (J21738-002)

Power requirements : DC 12 V (with the exclusive AC adaptor

J46598-001)

Audio input terminal : RCA pin jack x 2

3.5 mm dia. stereo minijack Input impedance : 20 kOhms Reference input level : 350 mV Dimensions : 140(W) x 128(D) x 230(H) mm

(5-9/16" x 5-1/16" x 9-1/16")

Weight : 315 g (11.1 oz) (Without connection

cord and AC adaptor)

Headphones (HA-W100RF)

Power requirements : Rechargeable Ni-Cd battery (1.2 V) x 2 Battery running time : 13 hours (When charged for 19 hours) Frequency response : 50 Hz --- 12,000 Hz Weight : 300 g (10.6 oz) (With provided

rechargeable Ni-Cd battery x 2)

HA-RF100S (J)HA-RF100S (J)

Contents

Specifications ............................... Front cover

Safety precautions ..................................... 2

1. Operation manual ................................ 2

2. Disassembly ........................................ 15

3. Schematic diagrams ............................ 17

4. Measurement condition ....................... 19

5. Wiring diagrams .................................. 19

6. Block diagrams ................................... 21

7. Electrical parts list................................ 22

8. Explode view ....................................... 23

9. Mechanical parts list ........................... 25

10. Packing method ................................ 26

11. Packing materials parts list ............... 28

12. Accessoriers list ................................ 29

Speakers (SP-A100RF)

Power requirements : DC 9 V (with the exclusive AC adaptor

J46906-001) or D size battery (1.5 V)

x 6 (each channel) Battery running time : 24 hours (when use Alkaline batteries) Frequency response : 65 Hz --- 16,000 Hz Dimensions : 150(W) x 175(D) x 280(H) mm

(5-15/16" x 6-15/16" x 11-1/16") Weight : 3.0 kg (6.7 lbs) (without batteries and

AC adaptor) (each channel)

Provided Accessories

Instructions x 1 AC adaptor x 3 Connection cord x 1 (3.5 mm dia. stereo miniplug --- RCA pin

plug x 2 : 1.8 m (5.9 ft))

Charging cable x 1 (2.5 mm dia. mono plug --- 2.5 mm dia.

mono plug)

Plug adaptor x 1 (converts 3.5 mm dia. stereo miniplug to a

6.3 mm dia. standard stereo phone plug) Exclusive rechargeable Ni-Cd battery x 2 (for headphones)

* Design and specifications subject to change without notice.

No.70248 Oct. 2000

HA-RF100S(J)

Safety precautions

1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.

3. Many electrical and mechanical parts in the products have special safety-related characteristics.

These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.

4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling.

5. Leakage currnet check (Electrical shock hazard testing) After re-assembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock. Do not use a line isolation transformer during this check.

Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet , particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.)

Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to eachexposed metal part, particularly any exposed metal part having a return path to the chassis, and meausre the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. voltage measured Any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).

0.15 F AC TYPE

1500 10W

Good earth ground

AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)

Place this probe on each exposed metal part.

Warning

1. This equipment has been designed and manufactured to meet international safety standards.

2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

3. Repairs must be made in accordance with the relevant safety standards.

4. It is essential that safety critical components are replaced by approved parts.

5. If mains voltage selector is provided, check setting for local voltage.

CAUTION

Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.

VICTOR COMPANY OF JAPAN, LIMITED

1. Operation manual

HA-RF100S (J)

WIRELESS ENTERTAINMENT SYSTEM

HA-RF1 00S (J)

Printed in China J5500-103B

INSTRUCTIONS

For Customer Use:

Enter below the Model No. and Serial No. which is located on the rear of the cabinet. Retain this information for future reference.

Model No.

Serial No.

J5500-103B

HA-RF100S(J)

Hearing Comfort and Well-Being

● Do not play your headphones at a high volume. Hearing experts advise against

continuous extended play.

● If you experience a ringing in your ears, reduce volume or discontinue use.

Traffic Safety

● Do not use while operating a motorized vehicle. It may create a traffic hazard and is

illegal in many areas.

● You should use extreme caution or temporarily discontinue use in potentially hazardous

situations.

● Even though your headphones are of the open-air type designed to let you hear outside

sounds, don't turn up the volume so high that you can't hear what's around you.

FCC INFORMATION

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference. (2) This device must accept any interference received, including interference that may

cause undesired operation.

CAUTION Changes or modifications not approved by JVC could void user's authority

Contact

Address: JVC AMERICAS CORP.

Telephone: (973) 315-5000

Note: This equipment has been tested and found to comply with the limits for a Class B

● Reorient or relocate the receiving antenna.

● Increase the separation between the equipment and receiver.

● Connect the equipment into an outlet on a circuit different from that to which the receiver

is connected.

● Consult the dealer or an experienced radio/TV technician for help.

to operate the equipment.

JVC COMPANY OF AMERICA 1700 Valley Road, Wayne, NJ 07470

digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

CAUTION:

CHARGE ONLY WITH PROVIDED NICKEL-CADMIUM TYPE BATTERIES. OTHER TYPES OF BATTERIES MAY BURST CAUSING PERSONAL INJURY AND DAMAGE.

AVERTISSEMENT:

POUR RÉDUIRE LES RISQUES D’INCENDIE OU DE CHOC ÉLECTRIQUE, NE PAS EXPOSER CET APPAREIL À LA PLUIE NI À L’HUMIDITÉ.

ATTENTION:

NE RECHARGER QU’AVEC DES BATTERIES DE TYPE CADMIUMNICKEL FOURNI. D’AUTRES TYPES DE BATTERIES POURRAIENT ÉCLATER CAUSANT DES BLESSURES ET DES DOMMAGES.

IMPORTANT

CAUTION:

TO PREVENT ELECTRIC SHOCK DO NOT USE THIS PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.

ATTENTION:

POUR PREVENIR LES CHOCS ELECTRIQUES NE PAS UTILISER CETTE FICHE AVEC UN PROLONGATEUR, UNE PRISE DE COURANT OU UNE AUTRE SORTIE DE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT.

(1) This device may not cause interference. (2) This device must accept any interference, including interference that may

cause undesired operation of the device.

(1) Ce produit ne cause pas d'interférence. (2) Ce produit doit accepte toute interférence, incluant interférence qui peut

causé opération non désiré.

“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.

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Do read the operating instructions before you attempt to use the equipment.

Do ensure that all electrical connections (including the mains plug, extension leads

and inter-connections between pieces of equipment) are properly made and in accordance with the manufacturer's instructions. Switch off and withdraw the main 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 main 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

our 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.

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.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

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

HA-RF100S(J)

better to be safe than sorry!

HA-RF100S(J)

CAUTION

To reduce the risk of electrical shocks, fire, etc.:

1. Do not remove screws, cover or cabinet.

2. Do not expose this appliance to rain or moisture.

IMPORTANT

1. Installation

● 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).

● Keep away from direct sunlight.

● Do not put it too close to a heater.

2. Power cord

● Do not handle the power cord with wet hands!

● Do not bend the power cord sharply.

3. Malfunctions, etc.

● There are no serviceable parts inside. If anything goes wrong, unplug the power

cord and consult your dealer.

● Do not insert any metallic object.

● Do not allow water to get inside.

4. Handling

● Be sure to use headphones and/or speakers together with the transmitter.

FEATURES

● Frequency modulation system which allows headphones/speakers to be used even

in areas where the transmitter cannot be seen

● Extended Reception Range (up to 150 ft (46 m): using JVC measurements system)

● All-in-One package (transmitter, headphones and two speakers included)

● Volume controllable speaker with auto tuning function/bass boost control

● Auto-level control that automatically adjusts signals to the appropriate modulation

level (for transmitter)

● Compact speaker design for indoor/outdoor use (not water resistant)

● Rechargeable System with Ni-Cd Batteries Provided (for headphones)

● Soft Comfort-Fit Headband that adjusts easily when put on

● Automatic Power On/Off transmitter

● Large 100 mm dia. woofer drivers and 50 mm dia. tweeter drivers for high quality

sound (for speakers)

● Large 40 mm dia. drivers for high quality sound (for headphones)

● Single Volume Control adjusts the volume level of the left and right channels

simultaneously (for headphones)

● Adaptable to Any Audio/Visual Equipment

NAMES OF PARTS AND THEIR FUNCTIONS

Transmitter

[A][B]

TUNING (Tuning control)

Adjusts the transmission frequency.

CHG. (Charging output terminal)

AUDIO (Audio input terminals)

[A] RCA pin jack (L/R) [B] 3.5 mm dia. stereo minijack

DC IN (DC 12 V jack)

AC adaptor (J46598-001)

Connects to a household AC outlet (AC 120 V, 60 Hz).

Indicator

When an audio signal is input : lights in green When charging : lights in red

Notes:

● When an audio signal is input while

charging, the indicator may light in orange.

● The provided AC adaptor is

exclusively for use with this unit. Do not connect to any other equipment.

NAMES OF PARTS AND THEIR FUNCTIONS

Headphones

6 5

1 2 3

ST. (Stereo signal indicator)

Lights in red when a signal is received from the transmitter.

TUNING (Tuning control)

Adjusts the reception frequency.

Volume control

Adjusts the volume level of the left and right channels simultaneously.

CHARGE (Charging input terminal)

ON/OFF (Power switch)

Power indicator

Lights in red when the power is turned on.

Soft Comfort-Fit Headband

Battery compartment cover

Speakers

2 3

SPEAKER COVER

Can also be detached.

POWER (Power indicator)

Lights in red when the power is turned on.

STEREO (Stereo signal indicator)

Lights in green when receiving the signal from the transmitter.

Note:

The indicator also lights in green with signals not originating from the transmitter.

VOLUME (Volume and power ON/OFF)

Turn the knob clockwise to turn the power on and to turn up the volume.

AUTO TUNING

Adjusts the reception frequency. When the button is pressed, frequency tuning starts automatically and it stops when a signal is detected.

Note:

Signals not originating from the transmitter or unexpected signals can also cause the frequency tuning to stop. If this happens, press the button again to resume tuning.

BASS BOOST CONTROL

Press this button to emphasize the bass.

DC IN (DC 9 V jack)

Battery compartment cover

L/R (Channel marking)

Refer to this mark to set the speaker.

AC adaptor (J46906-001)

Connects to a household AC outlet. (AC 120 V, 60 Hz)

HA-RF100S(J)

CONNECTION

䡵

How to connect to AV equipment

Connection to HEADPHONES jack

When connecting to a standard stereo phone jack (6.3 mm dia.) — Use the provided plug adaptor

(Converts a stereo minijack to a standard stereo phone jack)

TV, audio amplifier, VCR, tape deck, video disc player, etc.

To HEADPHONES jack

When connecting to a monaural minijack — Use an optional plug adaptor

(Converts a stereo minijack to a monaural minijack)

Connection to LINE OUT or REC OUT terminals

Provided connection cord

When connecting to a stereo minijack

R-channel (red plug)

L-channel (white plug)

To the audio input terminal [A]

CONNECTION

Connection to power supply

Caution:

The AC adaptors for the speakers are also provided in this unit. Be careful not to use them as the power supply for the transmitter. Misuse of the adaptor may result in fire, malfunction, etc., as the voltage and current value differ depending on the adaptor type.

To AC outlet (AC 120 V, 60 Hz)

Note:

Be sure to use the provided exclusive AC adaptor (J46598-001) for connection. Use of any other AC adaptor may cause a malfunction.

Provided exclusive AC adaptor (J46598-001)

Plug polarities

RANGE OF USE

150 ft

The usable area between the transmitter and the headphones is within a radius of approx. 150 ft (based on measurements taken when placed in direct view in a straight line).

To DC IN 12 V jack

TV, audio amplifier, VCR, tape deck, video disc player, etc.

To LINE OUT or REC OUT terminals

R-channel (red plug)

L-channel (white plug)

Provided connection cord

To the audio input terminal [B]

Note:

The usable area may differ depending on building structure, etc. The range becomes shorter in the following cases:

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.

● Be sure to keep

this unit more than 50 cm away from concrete walls, metal furniture, etc.

POWER REQUIREMENTS OF HEADPHONES

Use two exclusive rechargeable Ni-Cd batteries to power the headphones. When you purchase this unit, be sure to charge the provided rechargeable Ni-Cd batteries according to the following procedures before use.

Insert the rechargeable Ni-Cd batteries

Remove the battery compartment cover on the right side of headphones.

Insert the two rechargeable Ni-Cd batteries with the polarities correctly positioned.

Cautions about the batteries

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. Be sure to use the provided exclusive Ni-Cd batteries. Do not use any other rechargeable Ni-Cd battery or dry cell battery.

2. Insert batteries with the (+) and (–) polarities correctly positioned, following the indications on the equipment.

3. Do not use a new battery with an old one, and do not use batteries holding different amounts of charge together.

4. Do not throw batteries in a fire or heat them.

5. 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.

6. Do not deform, take apart, modify or directly solder the batteries.

7. Do not remove or damage the covering tube.

8. If you notice phenomena that has never happened before, such as leakage, color change or deformity, stop using the batteries.

9. 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.

10. Do not immerse or wet the batteries in water.

11. 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.

12. Do not subject the batteries to strong shocks or throw them.

13. Be sure to read the cautions on the batteries.

Charging rechargeable Ni-Cd batteries

To charging input terminal

To CHG. (charging output terminal)

Set the ON/OFF (power) switch on the headphones to OFF.

The batteries cannot be charged when the switch is set to ON.

Connect the transmitter and the headphones with the provided cord for charging.

Connect the AC adaptor to the transmitter.

Plug the AC adaptor into an AC outlet. The charger starts charging the batteries automatically and the transmitter’s indicator lights in red.

Charging time

Quick charging

Charging starts

The transmitter's indicator lights in light red.

(2 ~ 4 hours)

Battery running time

After charging is complete, you can use them continuously for the following amounts of time: Quick charging (2 ~ 4 hours) : 4 ~ 9 hours Full charging (19 hours) : 13 hours

Tips for better use

● Be sure to charge the batteries within the temperature range of 10° C ~ 35° C

(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.

To DC IN 12V jack

Quick charging ends

The transmitter's indicator changes to dark red.

Normal charging (Approx. 15 hours)

To AC outlet

Full charging

After full charging is complete, the transmitter's indicator continues to light in dark red.

HA-RF100S(J)

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