NAD 118 Manuel D'installation page 19

In the unlikely event you should encounter problems with the opertion of the NAD Model 118 preamplifier, the trouble
shooting guide can help find the cause and rectify it before consulting your dealer.
SYMPTOM
Unit doesn't work;
power LED (1) doesn't light up
Power LED (1) is lit but no sound.
Despite Volume control turned
way up only a little bit of sound
No sound in one channel
(with analogue sources only)
(All digital and analogue sources)
No sound with digital source;
LED in input button blinks
Remote control, Buttons and
controls have stopped working
Remote control does not work
or intermittently.
All input selector LEDs are flashing The pre-amp has inadvertent- DO NOT press any of the input selector buttons,
TROUBLE SHOOTING
CAUSE REMEDY
Mains plug not connected Check if mains plug is inserted in live wall socket.
to live wall socket
Wrong input selected Select input to which source is connected
Source not connected to input Check connection from source to appropriate input
Tape Check 1 or 2 (8 or 13) Press the Tape Check button in which the LED is lit
selected (amber LED in button to dis-engage
is lit) without signal present.
Volume control (22) turned Turn Volume control up to appropriate level
down
Power amp not turned on Turn on power amplifier
Power amp not connected Connect power amp.
Input sensitivity for analogue Adjust input sensitivity for appropriate analogue
source has been set too low source
High Gain (21) hasn't been Switch High Gain on
engaged
Power amp and speaker Set Sensitivity switch to "Normal" position
combination too insensitive;
Sensitivity switch (16 on back
panel) set to "High" position
Faulty connection from source Check connection between source and pre-amp
to input
Faulty connection from Check connection between pre-amp and power amp
analogue pre-amp output to
power amplifier input
Faulty connection between Check connection between power amp and
power amp and loudspeaker loudspeaker
Balance set to one channel Check setting of balance control
only
Faulty connection from Check connection between source and pre-amp.
source to input
Wrong type of cable Use cable with 75 ohm impedance
The pre-amp has "locked Switch off pre-amp completely; switch on again after
up" due to static electricity. several seconds.
Distance from remote control Operate remote control from closer distance (within
to pre-amp is too large 8mtr/ 25ft.)
Angle of operation to pre-amp Operate remote control within a narrower angle
is too large to the pre-amp (within 90 from front panel)
Batteries flat Replace batteries
Batteries have been inserted Insert batteries correctly
the wrong way
Line-of-sight from remote Ensure that the IR. emitter at the front of the remote
control IR. emitter to pre-amp's control has a clear line-of-sight to the IR. receiver
built-in IR. receiver is blocked (located in the display panel; 26) of the pre-amp
ly been set in configuration as this may change the configuration. Press any of
mode. the other buttons on the front panel (apart from High
Gain) to resume normal operation.
GB
NAD
19