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31

Obtaining Service

We take great pride in our dealers. Experience, dedication, and integrity make
these professionals ideally suited to assist with our customers’ service needs.

If your Mark Levinson component must be serviced, please contact your dealer.
Your dealer will then decide whether the problem can be remedied locally, or
whether to contact Madrigal for further service information or parts, or to obtain
a Return Authorization. The Madrigal Technical Services Department works
closely with your dealer to solve your service needs expediently.

Important!

Return authorization must be obtained from Madrigal’s
Technical Services Department BEFORE a unit is shipped for
service.

It is extremely important that information about a problem be explicit and com-
plete. A specific, comprehensive description of the problem helps your dealer and
the Madrigal Technical Services Department locate and repair the difficulty as
quickly as possible.

A copy of the original bill of sale will serve to verify warranty status. Please in-
clude it with the unit when it is brought in for warranty service.

Warning!

All returned units must be properly packaged (preferably in
their original packing material), and the proper return
authorization numbers must be marked on the outer carton
for identification. If the packaging to protect the unit is, in our
opinion or that of our dealer, inadequate to protect the unit,
we reserve the right to repackage it for return shipment at the
owner’s expense. Neither Madrigal nor your dealer can be
responsible for shipping damage due to improper (that is,
non-original) packaging.

Your dealer can order a new set of shipping materials for you if you need to ship
your component and no longer have the original materials. There will be a
charge for this service. We 

strongly 

recommend saving all packing materials in

case you need to ship your unit some day.

Содержание N 331

Страница 1: ...Madrigal Audio Laboratories Inc Operating Manual Mark Levinson N 333 N 332 N 33 1 Dual Monaural Power Amplifiers...

Страница 2: ...en closure that may be of sufficient magnitude to constitute a risk of electric shock to per sons The exclamation point within an equilateral triangle is intended to alert the user to the presence of...

Страница 3: ...use flammable or combustible chemicals for cleaning audio components 5 NEVER operate this product with any covers removed 6 NEVER wet the inside of this product with any liquid 7 NEVER pour or spill l...

Страница 4: ...4...

Страница 5: ...er Supply 12 Balanced design 12 True Voltage Source 12 Adaptive Biasing of the Output Stage 13 Extensive Protection 13 Front Panel 15 Rear Panel 16 Remote turn on tip polarity 18 Bridged Operation 22...

Страница 6: ...power amplifier keep all packing materials for future transport In the event that you need to ship your amplifier only the original purpose designed shipping carton is acceptable Any other method of...

Страница 7: ...AC mains Note that under these conditions the amplifier cannot respond to remote turn on commands etc Ventilation As a freestanding unit your power amplifier normally has no problem with venti lation...

Страница 8: ...even from one municipality to the next For this reason it is impossible for us to anticipate the requirements of your area with regard to high current AC hookups If you plan to install a dedicated hi...

Страница 9: ...extremely difficult loads we recommend installing a dedicated AC line for the amplifier with 30 ampere capability The operating voltage of the N 333 cannot be changed by the user and any at tempt to...

Страница 10: ...your home entertainment sys tem For compatibility with existing household outlets a standard three conductor 15 ampere IEC standard detachable AC mains cable is provided for use with your amplifier M...

Страница 11: ...mely unlikely to be encountered in normal use The power demands that a single amplifier might conceivably make when being used to reproduce music with actual loudspeakers are substantially lower Still...

Страница 12: ...ting uniformly low power supply impedance seen by the various circuits within the amplifier lays the foundation for both the massive power and the extraordinary finesse that characterizes the 300 seri...

Страница 13: ...al of poorly informed discussion of class A operation over the years Unfortunately the ther mal management problems of true class A operation in a high current output stage are severe and introduce se...

Страница 14: ...aging of power supply components during power up and switches off line once the power supply has been charged Finally your amplifier incorporates a controlled clipping circuit that prevents the output...

Страница 15: ...all times To turn the amplifier off as opposed to standby press and hold the standby button for approximately one second until the front panel indica tor light turns off To turn off even the superviso...

Страница 16: ...of the XLR inputs which were placed there prior to shipment from the factory Save them for possible use at a later date should you want to listen to a friend s single ended cable for example The pin a...

Страница 17: ...to their slave in port up to a maximum of six amplifiers total to support multi amped systems for example communication ports remote tur n on jacks slave out slave in A straight through six conductor...

Страница 18: ...e Mark Levinson Communications Link described above These 1 8 3 5 mm mini jacks allow other components to bring the power amplifier in and out of standby Two such mini jacks are provided to allow dais...

Страница 19: ...positive or red input terminal of the appropriate loudspeaker If biwiring repeat using the other positive or red output post of the amplifier and the positive or red input terminal of the loudspeaker...

Страница 20: ...s switch is lo cated adjacent to the power cord on the rear panel of the amplifier This switch may be used to disconnect the supervisory power supply from the AC mains without having to actually unplu...

Страница 21: ...our AC fuses have blown disconnect your amplifier from the AC mains and contact your Mark Levinson dealer for as sistance Do not attempt to replace these fuses yourself Danger Potentially dangerous vo...

Страница 22: ...or higher that have a greater need for voltage than for current It is not recommended for loudspeakers that have an impedance significantly be low 4 as the speaker s impedance is split by the two halv...

Страница 23: ...eference between the two channels can damage your amplifier by forcing significant currents to flow where they do not belong To bridge your Mark Levinson amplifier using a balanced input signal follow...

Страница 24: ...n practice the most important thing is to be con sistent throughout the system as inconsistency will result in out of phase loudspeakers In turn this results in unstable imaging and poor bass repro du...

Страница 25: ...cuit that includes the loud speakers Important Do not attempt to operate your amplifier in a bridged mode without first strapping the black output terminals together Failure to establish a common grou...

Страница 26: ...26 Single Ended Bridged Input Connection...

Страница 27: ...ic to the loudspeaker in question In general however biamping is done in one of two ways active biamplification or passive biamplification Active biamping refers to the presence of an active electroni...

Страница 28: ...28 Passive biamping wiring diagram...

Страница 29: ...a soft cloth Dampen the cloth with alcohol first and then lightly clean the surface of the amplifier with the cloth Do not use excessive amounts of alcohol that might drip off the cloth and into the...

Страница 30: ...luation Return authorization must first be obtained by either calling or writing the factory prior to shipping the component The factory will pay for return shipping charges only in the event that the...

Страница 31: ...and the Madrigal Technical Services Department locate and repair the difficulty as quickly as possible A copy of the original bill of sale will serve to verify warranty status Please in clude it with...

Страница 32: ...tput 130 mV all models Input sensitivity full output 2 25V for N 333 1 80V for N 332 1 30V for N 331 Power consumption N 333 350W 5 at idle 200W 5 in standby Power consumption N 332 325W 5 at idle 200...

Страница 33: ...33 DUAL MONAURAL POWER AMPLIFIER 3 86 9 8 cm 9 85 25 cm 3 86 9 8 cm 0 425 1 1 cm 9 0 22 9 cm 0 425 1 1 cm 0 45 1 14 17 56 44 6 cm 18 85 47 88 cm 0 257 6 53mm 3 825 9 72cm 9 91 25 17cm 1 22 3 1cm 3 825...

Страница 34: ..._________________________________ _________________________________________________________________ _________________________________________________________________ __________________________________...

Страница 35: ...IES R N 331 DUAL MONAURAL POWER AMPLIFIER 3 86 9 8 cm 9 85 25 cm 3 86 9 8 cm 9 0 22 9 cm 0 31 78 cm 17 56 44 6 cm 14 36 36 47 cm 18 85 47 88 cm 0 257 6 53mm 3 825 9 72cm 9 91 25 17cm 1 22 3 1cm 3 825...

Страница 36: ..._____________________________________________________________ _________________________________________________________________ _________________________________________________________________ ______...

Страница 37: ...37...

Страница 38: ...is a registered trademark of Madrigal Audio Laboratories Inc a Harman International company MADRIGAL AUDIO LABORATORIES R Madrigal Audio Laboratories Inc 2081 South Main Street P O Box 781 Middletown...

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