T+A Elektroakustik 1235 R - Manual (Page 50)

50
Trouble-shooting
Many problems have a simple cause and a corres-
pondingly simple solution. The following section des-
cribes a few difficulties you may encounter, and the
measures you need to take to cure them.
If you find it impossible to solve a problem with the help
of these notes, please disconnect the unit from the mains
and ask your authorised
    specialist dealer for advice.
Problem: Machine does not switch on (green
LED stays dark).
Cause: Mains lead not connected correctly.
Remedy: Check connection, push in firmly.
Problem: Machine does not respond when
buttons are pressed.
Cause: Static discharge or powerful interference
(e. g.
lightning) have affected the
processor’s memory.
Remedy: Reset machine: disconnect the mains
plug, wait about 10 seconds, then plug in
again. Switch the machine on.
Problem: Machine responds correctly when front
panel buttons are pressed, but cannot
be remote-controlled via an 'R' series
pre-amplifier, integrated amplifier or
receiver.
Cause 1: Batteries in remote control handset
exhausted or fitted incorrectly.
Remedy: Fit new batteries, or re-fit batteries with
correct polarity.
Cause 2: R LINK or RC plug not connected correctly
to machine’s R LINK or RC socket.
Remedy: Complete connections as shown in wiring
diagram; push connector in firmly.
Cause 3: No visual contact between remote control
transmitter and remote control receiver of
the 'R' series pre-amplifier, integrated
amplifier or receiver.
Remedy: Ensure direct visual contact between
remote control transmitter and receiver
(glass doors may prevent contact).
The maximum range of the remote control
system is about 8 metres.
Position the remote control receiver so
that it is not subjected to direct sunlight or
excessively bright lighting. Fluorescent
lamps and energy-saving bulbs are
powerful sources of interference.
Cause 4: The DVD player is not selected as current
listening source on the pre-amplifier,
integrated amplifier or receiver, i. e. the
control commands from the handset are
being passed to another 'R' system
device.
Remedy: Press the     (or    - see next
point) on the remote control handset, and
try again.
Cause:5: The remote control address of the DVD
player (AUX or CD) does not correspond
to the selected audio input sockets on the
pre-amplifier,
integrated amplifier or
receiver.
Remedy: The 'R LINK 2
nd
ADDR.' switch on the back
panel can be used to configure the DVD
player either as AUX or CD. You must
then select the appropriate input sockets
(see 'Back panel connections').
Problem: Loud hum from the loudspeakers.
Cause: Cinch plugs making poor contact, or faulty
Cinch lead.
Remedy: Check all connections and connecting
leads carefully.
Problem: No sound, or distorted sound.
Cause: Audio connection to amplifier or TV set not
correct.
Remedy: Complete the connections as shown in the
wiring diagram; push connectors in firmly.
Select a different listening source to check
the amplifier.
Problem: No sound signal via the digital output.
Cause 1: Digital plug not connected correctly to the
digital output socket on the machine.
Remedy: Complete connections as per wiring
diagram; push connectors in firmly.
Cause 2: Digital output switched off.
Remedy: Switch the digital output on using the
SETUP menu.
Cause 3: The data format of the selected audio
channel (e. g. Dolby Digital or DTS) is not
recognised by the decoder connected to
the system.
Remedy: Use a decoder which supports the data
formats.