Philips SBC HC520 User Manual

English

SBC HC520

Explanation of Controls

SBC HC520

Instruction for use IR sound system

1. Introduction

CONGRATULATION! You have just bought a most
sophisticated stereo Infra Red (IR) sound system.This system
gives you complete freedom to enjoy your music, without
the inconvenience and limitations of headphone cables.To
ensure the best performance of your stereo IR system,
please read this document carefully.

2. Features

• Transmits the stereo audio signal from your audio or video
source to your IR headphone without wires.

• Uses high-frequency IR rays to carry audio signal, ensuring
clear, sharp reception.

• Automatic Level Control (ALC) prevents overloading of
the transmitter over a wide level of input signal.

• Mute function to suppress excessive noise when there is
no input signal.

• Rechargeable batteries for powering the headphones.

3. What is included In this set the following components are included

1. IR stereo transmitter

2. IR stereo headphone

3. AC/DC adaptor

4. HiFi audio cable

5. Recharge cable

6. Rechargeable batteries

7.3.5-6.3 mm stereo adaptor

8. Instructions for use

A. Explanation of controls

On the IR stereo transmitter (see figure 1)

1. IR transmitting LEDs, to transmit audio signal to IR
headphone.

2. DC input connector, to power the IR transmitter.

3. Recharge power output, to charge the batteries of IR
headphone

4. Input 'B' 3.5 mm jack connector, for input of audio signal.

5. Input ‘A’ cinch connector, for input of audio signal.

On the IR stereo headphone receiver (see figure I)

6. Power on/off switch.

7. Power on/off LED indicator.

8. Volume control.

9. Recharge cable input, to recharge the batteries of the IR
headphone.

10. Charge on/off indicator

5. Installation

1. Connect the stereo audio signal to the IR transmitter with
the HiFi cable, as shown in Figure 2.

2. Insert the DC connector of the AC/DC adaptor into the
12V DC input connector on the rear of the IR transmitter,

as shown in figure 2.

3. Ensure that the rated voltage of the AC/DC adaptor is the

same as the mains voltage before plugging it into the mains
power wall outlet.

4. Insert two rechargeable batteries (R6. AA ) into the

battery compartments as shown in figure 3. ensuring that
the polarity is correct.

5. Note : Before using the IR headphone for the first time,

please ensure that batteries are fully charged (for 16
hours).This will guarantee a longer operating lifetime of
the batteries.

6. Operation

1. Switch on the IR transmitter and place it at the same
height or slightly higher than the reception height of the IR
headphone.

2. Position the LEDs towards the listening area, ensuring that
there are no obstacles in between.

3. Switch the IR headphone on.

4. Set the volume control to maximum on the IR headphone.

5. While listening to your IR headhone. adjust the volume of
the signal source to the headphone’s maximum acceptable
sound level.

6. Adjust volume control of the IR stereo headphone to a
comfortable listening level.

7. Recharging

1. Switch off the power of the headphone before charging.

2. Note : Before using the IR headphone for the first time,
please ensure that the batteries are fully charged (for 16
hours).This will guarantee a longer operating lifetime of
the batteries.

3. Connect the recharge input on the headphone with the
charge output on the transmitter via the recharge cable,
see figure 4.

4. The charge indication LED on the headphone will start
blinking to indicate that the batteries are charging (slow
blinking _ almost fully charged).

5. When the batteries are fully charged, the charge indication
LED will light continuously.

8. Positioning of IR transmitter

1. Place the IR transmitter unit so that the IR window
approximately foces the centre of your listening area, see
figure 5.

2. Because IR light travels in a straight line, place the IR
transmitter at the same height, or slightly higher than the
reception height of the IR headphone.

3. High IR light content such as sunlight and bright
incandescent indoor lighting may degrade the audio signal
and cause interference. If you experience such problems,
simply move the system to a darker area.

9. Specifications

System
Carrier frequency

Modulation
Input level
Power supply transmitter
Power supply headphone
Frequency range
S/N ratio
Distortion
Channel separation

Infra Red (IR)
Left channel 2.3 MHz
Right channel 2.8 MHz
FM

ISO mV
200 mA, 12V DC
2 X R6 (AA) batteries
12 - 24.000 Hz
>60dB

<0.5%THD
>50 dB

Figure 3

Figure 5

PHILIPS

Instructions for use
Mode d'emploi
Gebrauchsanleitung
Gebruiksaanwijzing
Instruzioni d'uso
Instrucciones
Modo de emprego
Bruksanvisning

horizontal forward neutral background

Figure 6

8 m

PHILIPS

SBC HC520

Figure 4