Rear Panel Connections - Nad 1130 Bedienungsanleitung

ENGLISH
REAR PANEL CONNECTIONS
1. AC LINE CORD
Plugthe AC line cord into a "live" wall socket.
2. AC OUTLETS (not in U.K. model)
The AC power line cords of other stereo components
may be plugged into these accessory outlets. The
SWITCHED outlets are intended for all-electronic
(power amp, tuner, equalizer, or other signal processor), and
will beswitched on and off by the main POWER button. The
UNSWITCHED outlets should be used to power products
involving mechanical operations (e.g. a turntable, CD player,
or tape deck); such products should be switched on and off
with their own power switches.
The UNSWITCHED outlets can also be used to power
any device containing a clock timer, or a digitat tuner that
requires uninterrupted AC power to maintain station tuning
information stored in its memory.
The SWITCHED outlets can be used with a power
amplifier that has a rated output of 150watts/channel or less.
A larger power amplifier, or one with a three-wire power cord,
should be plugged directly into a wall outlet and should be
turned on and off via its own Power
3. PHONO GROUND
If your turntable is equipped with a grounding wire
(usually a green wire terminating in a IJ-shapedspade lug),
connect it to this terminal. Turn the thumb-nut
clockwise, place the spade tug underthe nut, and tighten
the thumb-nut clockwise to secure the lug. If the grounding
wire has no spade lug, strip off 1 cm of insulation to expose
the bare wire, twist the wire strands tightly together, insert
the wire though the small hole in the shaft of the Ground
terminal, and tighten the thumb-nut to fasten the wire
in place.
If you encounter a persistent low-level hum or buzz in
the sound, connect a wire from the Ground terminal to a true
earth-ground, i.e. a copper-plated rod driven several feet into
the earth. A substitute electrical ground may also prove
effective: a cold water pipe, a steam radiator, or the third
hole of a modern electrical wall socket.
4. PHONO INPUT
Plug the signal cables from your turntable into these
jacks. If the cables or plugs are color-coded, refer to your
turntable's instruction manual to learn which cable or plug
is for the Left channel (upper jack) and which for the Right
(lower jack). Be careful to insert each plug fully into the
socket so that the plug's metal skirt fits tightly over the
exterior of the socket. If necessary, crimp the plug's metal
skirt slightly so as to obtain a tight fit with the socket.
5. CAPACITANCE SELECTOR
This switch selects the input capacitance of the phono
preamplifier. It enables you to optimise the load capacitance
for those cartridges whose frequency response is affected by
this parameter.
If you are using a low-inductance pickup (such as a
Grado or Micro-Acoustics), or a moving-coil cartridge, then
The lightning flash with arrowhead, within an equilateral
triangle, is intended to alert the user of the presence of
uninsulated "dangerous voltage" within the product's encio-
sure; that may be of suffictent magnitude to constitute a
risk of electric shock to persons.
products
switch.
counter-
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the setting of the CAPACITANCEselector is unimportant. But
with many high-inductancemagnetic pickups the capaci-
tance setting will audibly alter the sound of the pickup.
In order to select the best value of preamp input capaci-
tance you must first determine the total capacitance recom-
mended for the cartridge. This usually will be included in the
maker's specifications, and it may also be mentioned in
magazine reviews of the cartridge.
Next, subtract the capacitance of your turntable's tone-
arm wiring and signal cables. (Check the specifications
supplied with the tonearm, or write to the manufacturer of the
tonearm, or as a last resort assume a typical value of 150
pF.)After this subtraction,what remains is the desired value
of preamp input capacitance. Set the CAPACITANCEselec-
tor to the nearest value. It is not necessary to match the
computed value exactly; with most phono pickups a variation
of 50 pF one way or the other will produce only a very slight
change in frequency response.
Example: suppose you are using a Stanton 881S pickup
cartridge in a Pioneer turntable. Stanton specifies a recom-
mended load capacitance of 275 pF for the cartridge, and
the Pioneer turntable has a cable capacitance of about 100
PF.Subtracting:275 minus 100 equals 175 pF, so you should
set the CAPACITANCE selector to the nearest value, 200 PF.
If you prefer, you may simply set the CAPACITANCE
selector by ear while listening to recordings that are strong
in high-frequencyovertones. Typically,when the capacitance
is too low the upper-midrange (the soprano voice range) will
be softened and the responseat the highest frequencies will
be peaky,leading to edgy violin tone and increased surface
noise. Too high a value of capacitance will bring the upper-
midrange forward while rolling off the extreme highs.
6. MM/MC SELECTOR
This switch sets the input sensitivity and gain of the
phonopreamplifier c ircuit.Set it accordingto the outputlevel
of your phono cartridge. Set the switch at MM for cartridges
of the moving magnet, induced magnet, moving flux, and
movingiron(variablereluctance) t ypes,and for "high-output"
moving-coilpickups, i.e., those with a rated output of 1.0 mV
or greater.If yourcartridgeis a low-outputmoving-coil pickup
(witha ratedoutputof lessthan1.0mV), set the switchat MC.
Here is another way to determine the preferred setting of
the MM/MC switch. Begin by setting it to MM. After you have
completedthe installation and wiring of the system, play a
record. With the front-panel LOW LEVEL button OUT you
should obtain a satisfyingly loud volume level with a VOL-
UMEcontrol setting between9 0'clock and 3 0'clock. If you
have to turn up the VOLUME control beyond 3 0'clock to get
adequately loud sound, turn the VOLUME back down and
re-set the MM/MC switch to MC.
7. TUNER INPUT
Connect the audio signal cable from an AM/FM
(or video) tuner to this pair of jacks.
8. CD INPUT
Connect the audio signal cables from a digital Compact
Disc playerto these jacks. The input signal will be fed to the
Volumecontrol before reachingany active circuitry, so the
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to alert the user of the presence of important operating and
mantenance (servicing) instructions n the literature
accompanying the appliance.