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7 Frequently asked questions (FAQ)
Problem
Possible cause
Solution
1. Headphone fails
1.1 No battery installed
Refer to picture C to install or
to charge
replace batteries.
1.2 Wrong battery orientation
Reposition the batteries according to
the polarity symbol.
1.3 No power supply
Refer to picture D to make sure the
to transmitter
docking station is connected to the local
mains power.
1.4 Alkaline battery or
Only use Philips’ rechargeable shortened
non-short sleeve
sleeve NiMH batteries for charging.
battery is used
1.5 Charging pin of the docking Refer to picture E to dock the
station not in contact
headphone in place, and make
with the metal plate of
sure the CHARGE INDICATOR light
the headphone
on.
1.6 Wrong headphone
Reposition the headphone with correct
orientation when placed orientation.
onto the charging dock
2. No sound/
2.1 Set up not yet completed
Refer to possible causes from FAQ
distorted sound
1.1, 1.2 & 1.3.
2.2 Not set up properly
Refer to picture F to ensure audio
cable is connected to the AUDIO OUT
of the device.
2.3 Battery power running low
Refer to picture E to recharge the
headphone.
2.4 Audio source not
Refer to picture F to connect the audio
connected
source.
2.5 Audio source is off
Turn on your audio source.
2.6 Audio source level too low
Adjust the volume level of audio device
to higher and non-distorted level. If MP3
player or 3.5mm triport socket output is
used, switch ATT to 0dB.
2.7 Audio source level too high Adjust the output level to lower and
non-distorted level. If HiFi, DVD or RCA
output is used, switch ATT to -8dB.
2.8 Volume level set too low
Adjust the volume level of your audio
source or headphone.
Note: the volume is not adjustable for
some of the audio source.
2.9 Receiver too far away
Move closer for reception.
from transmitter
For further product support, please refer to
www.philips.com/welcome
4 LED lamp indications
Situation
Transmitter
Headphones
LED
Blue
Green
Blue
Connection established
On
Off
On
Charging
0-50% full
Off
Blinking, fast motion Off
> 50% full
Off
Blinking, slow motion Off
100% full
Off
On
Off
Low battery indicator
On
Off
Blinking, fast motion
Searching
Blinking, slow motion Off
Blinking, slow motion
5 Sound indications
Situation
Sound signal
When battery level is low
One “Beep” per minute (around 5 beeps)
Before battery totally goes out
“Beep Beep”
Turn the volume to Max/
Alert tone “Beep”
Min level
6 Technical data
Transmitter
System:
Radio Frequency (RF)
Modulation:
DMQ PSK
Carrier Frequency:
2400M - 2483.5MHz
Channels:
3 (auto-switching)
Radiated Output Power:
30mW
Effective Transmission Range:
Approx. 30 meters
(depending on ambient conditions)
Input Level:
800mV (0 dB)
2V (-8 dB)
Power requirements:
DC 6V
(from the supplied AC power adaptor)
Headphone
Playback frequency range:
20 - 20,000 Hz
S/N Ratio:
88dB Nominal
Distortion:
0.5% THD
Channel Separation:
≥60dB
Power Requirements:
Rechargeable Ni-MH batteries (supplied)
or commercially available (size AAA) dry batteries
Operating time:
~ up to 10 hours (actual result may vary)
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