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Owner’s Manual

Nº436

Nº434

1. Read these instructions

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or another apparatus

that produces heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has

two blades with one wider than the other. A grounding-type plug has two blades and a third

grounding prong. The wide blade or third prong is provided for safety. If the provided plug

does not fit into the outlet, consult an electrician for replacement of the obsolete outlet.

10. The MAINS cord is intended to be the safety disconnect device for this apparatus. Ready access

to the MAINS cord shall be maintained at all times.

11. Protect the power cord from being walked on or pinched, particularly at plugs, convenience

receptacles, or the point where it exits from the apparatus.

12. Only use attachments and accessories specified by the manufacturer.

13. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer

or sold with the apparatus. When a cart is used, use caution when moving the

cart/apparatus combination to avoid injury or tip over.

14. Unplug this apparatus during lightning storms or when unused for long periods of time.

15. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has

been damaged in any way, such as when the power cord or plug has been damaged; liquid has

been spilled or objects have fallen into the apparatus; or the apparatus has been exposed to

rain or moisture, does not operate normally, or has been dropped.

16. Ventilation should not be impeded by covering the ventilation openings with items such as

newspapers, table cloths, curtains, etc.

17. No naked flame sources, such as candles, should be placed on the apparatus.

18. Terminals marked with this symbol may be considered HAZARDOUS LIVE and the

external wiring connected to these terminals requires installation by an INSTRUCTED

PERSON or the use of ready-made leads or cords.

Warning!

To reduce the risk of fire or electric shock, do not expose the apparatus to rain or moisture. Do

not place objects containing liquid, such as vases, on this apparatus.

Important Safety Instructions

FCC Notice

This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference in a residential installation. This equipment generates, uses, and can

radiate radio frequency energy and, if not installed and used in accordance with the instructions,

may cause harmful interference to radio communications. However, there is no guarantee that

interference will not occur in a particular installation. If this equipment does cause harmful

interference to radio or television reception, which can be determined by turning the equipment

off and on, the user is encouraged to try to correct the interference by one or more of the following

measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

• Consult an authorized Mark Levinson dealer or an experienced radio/TV technician for help.

Caution!

Changes or modifications not expressly approved by the party responsible for compliance could

void the user’s authority to operate the equipment.

Canada

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

3 Oak Park

Bedford, MA 01730-1413 USA

Telephone: 781-280-0300

Fax: 781-280-0490

www.marklevinson.com

Customer Service

Telephone: 781-280-0300

Sales Fax: 781-280-0495

Service Fax: 781-280-0499

Product Shipments

16 Progress Road

Billerica, MA 01821-5730 USA

Part No. 070-630430 | Rev 6 | 07/04

“Mark Levinson” and the Mark Levinson logo are registered trademarks

of Harman International Industries. U.S. patent numbers and other

worldwide patents issued and pending.

“Madrigal Audio Laboratories” and the Madrigal Audio Laboratories

logo are registered trademarks of Harman International Industries.

U.S. patent numbers and other worldwide patents issued and pending.

This document should not be construed as a commitment on the

part of Harman Specialty Group. The information it contains is

subject to change without notice. Harman Specialty Group assumes

no responsibility for errors that may appear within this document.

Introduction Mark Levinson

Table of Contents

Introduction

Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . .ii

FCC Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii

Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . .vi

Section 1: Getting Started

Special Design Features . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

Massive Power Supply • Balanced Design • True Voltage Source •

Adaptive Bias • Extensive Protection

Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Product Registration

Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Placement • Rack-Mounting • Ventilation

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

Warm-up & Break-in Period • Operating States • Continuous

Operation

Section 2: Basic Operation

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Linking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

Link Connections • Constructing Link Communication Cables •

Creating a Slave Chain • Link Controls

Section 3: Troubleshooting & Maintenance

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Care & Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Nº436/434 Introduction

Appendix

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . .A-3

Dimensions, Nº436 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4

Dimensions, Nº434 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-6

Introduction Mark Levinson

Documentation

Conventions

This document contains general safety, installation, and operation

instructions for the Nº436/434 Power Amplifiers. It is important

to read this document before attempting to use these components.

Pay particular attention to safety instructions.

Appears on the component to indicate the

presence of uninsulated, dangerous voltages

inside the enclosure – voltages that may be

sufficient to constitute a risk of shock.

Appears on the component to indicate important

operation and maintenance instructions

included in the accompanying documentation.

Appears on the component to indicate

compliance with the EMC (Electromagnetic

Compatibility) and LVD (Low-voltage Directive)

standards of the European Community.

Warning! Calls attention to a procedure, practice,

condition, or the like that, if not correctly

performed or adhered to, could result in

personal injuries or death.

Caution! Calls attention to a procedure, practice,

condition, or the like that, if not correctly

performed or adhered to, could result in

damage or destruction to part or all of the

component.

Note Calls attention to information that is essential to

highlight.

1-1

Special Design Features

Thank you for purchasing the Nº436/434 Monaural Power

Amplifier, combining the massive power and strength of a large

power amplifier with the elegance and finesse of a small power

amplifier. This section describes some of the design features that

make this unique combination possible.

Massive Power Supply The Nº436/434 uses a large, robust power supply with a high-

capacity, low-noise toroidal transformer and four large, low ESR

(Equivalent Series Resistance) capacitors. Specifically, the Nº436

uses a 2372 VA transformer with 80,000µF total capacitance, while

the Nº434 uses an 801 VA transformer with 72,000µF total

capacitance.

Heavy, oxygen-free copper bus bars enhance the efficiency of

power distribution with the power amplifier, eliminating variances

caused by wiring harnesses, which are commonly found even in

high-performance power amplifiers. High-frequency power supply

bypass is accomplished on individual PC boards by five types of

components. As a result, a uniformly low power supply imped-

ance is seen by various circuits within the power amplifier provid-

ing the foundation for a rare combination of massive power and

extraordinary finesse.

Balanced Design A truly balanced input topology eliminates the need for an input

buffer amplification stage, allowing the source to directly drive

the first stage differential amplifier. Matched impedances are pre-

sented to the source as both signals travel identical circuit paths.

Meticulous attention to detail, including careful mirror-imaging of

circuits, minimizes magnetic field distortions that can be caused

by such a massive power delivery system. Balanced input signals

remain balanced throughout voltage gain stages, achieving rejec-

tion of common mode noise and distortion in the final, current

gain stage.

Getting Started

1-3

Nº436/434 Getting Started

In addition, the Nº436/434 uses state-of-the-art protections to

guard against the following fault conditions:

•Signal-related faults, including the presence of DC (direct

current) signals at the output and demands for excessive

current at the output (indicating a short-circuit). If a signal-

related fault is detected, the front panel indicator LED blinks

rapidly, remaining lit and unlit for equal intervals. The

Nº436/434 shuts itself down to protect itself and associated

loudspeakers. To restore normal operation, remove the source

of the fault. Then, power cycle the Nº436/434 using the

power button.

•Power-related faults, including over or under-voltage (±10%)

conditions at the ~ac mains connector. If AC mains voltage is

too high or too low for safe operation, the front panel indicator

LED blinks rapidly, remaining lit for longer intervals. Normal

operation will not be restored until AC mains voltage falls

back into a safe operating range.

For example, a 120V model of the Nº436/434 will operate

from approximately 108-132V, while a 240V model of the

Nº436/434 will operate from approximately 216-264V. Outside

of these limits, the Nº436/434 will activate sleep mode. When

AC mains voltage returns to the safe operating range, the

Nº436/434 can be taken out of using the sleep mode standby

button.

•Thermal-related faults, such as if the Nº436/434 becomes over-

heated. The front panel indicator LED blinks rapidly, remain-

ing unlit for longer intervals. The Nº436/434

automatically activates sleep mode and remains in sleep

mode until output heat sink temperatures drop below 85˚C

(185˚F or 358K). When temperatures return to a safe operating

range, the Nº436/434 can be taken out of sleep mode using

the standby button.

1-4

Getting Started Mark Levinson

Unpacking

Warning! DO NOT attempt to lift or move the Nº436/434 without

adequate assistance. Failure to follow the procedures included

in this section may result in personal injuries and/or product

damage.

The Nº436 and Nº434 are massive power amplifiers. The Nº436

ships at 95 pounds (43.2kg) and the Nº434 ships at 65 pounds

(29.5kg). Rear panel handles are provided for safe, convenient

lifting and moving. Proper lifting requires at least two people.

Caution! DO NOT attempt to lift the Nº436/434 from its packing carton

alone.

DO NOT attempt to lift the Nº436/434 while bending at the

waist. When lifting, stand as straight as possible using the leg

muscles to lift.

When unpacking the Nº436/434:

•DO save all packing materials for possible future shipping

needs.

•DO inspect the Nº436/434 for signs of damage during

shipment. If damage is discovered, contact an authorized

Mark Levinson dealer for assistance making appropriate

claims.

Product Registration Please register the Nº436/434 within 15 days of purchase. To do

so, register online at www.marklevinson.com or complete and

return the included product registration card. Product registration

serves no warranty purposes. Retain the original, dated sales

receipt as proof of warranty coverage.

Installation Considerations

The Nº436/434 requires special care during installation to ensure

optimal performance. Pay particular attention to the precautions

included in this section and to other precautions included

throughout this owner’s manual.

1-5

Nº436/434 Getting Started

Placement •DO review and “Important Safety Instructions” “Power

Requirements” before installing the Nº436/434.

•DO place the Nº436/434 on a solid, flat, level surface such as

a table, shelf, or floor OR bolt the Nº436/434 into a rack-

mounting system. Use a purpose-built rack-mounting system

to accommodate the weight of the power amplifier. Refer to

“Rack-Mounting” for additional information.

•DO position the Nº436/434 close to associated loudspeakers

to keep loudspeaker wires as short as possible. Use longer

interconnecting cables between the preamplifier and the

power amplifier. This is preferable because interconnecting

cables pass low-voltage signals, which transmit over distances

with greater accuracy than the high-voltage signals required

by loudspeakers.

•DO allow at least a 6-inch (15cm) clearance behind the

Nº436/434 for the power cord and signal cables to bend

without crimping or straining.

•DO see “Dimensions” for assistance with custom installations.

•DO NOT position the Nº436/434 near low-level components.

These power amplifiers are capable of producing massive

output currents, which could generate significant magnetic

fields that induce noise in some sensitive components.

•DO NOT place the Nº436/434 on a windowsill or in another

location in which it will be exposed to direct sunlight.

Caution! BEFORE moving the Nº436/434, make sure it is powered off

using the power button. Then, make sure the power cord is

disconnected from the ~ac mains connector and the electrical

outlet.

DO NOT attempt to move the Nº436/434 without adequate

assistance. Proper lifting requires at least two people.

Rack-Mounting The Nº436/434 can be rack-mounted using the optional rack-

mount kit available at authorized Mark Levinson dealers. This

purpose-designed kit provides adequate support for the power

amplifier as well as proper ventilation for the heat sinks. When

rack-mounted, the Nº436 occupies four standard rack units and

the Nº434 occupies three standard rack units.

1-6

Getting Started Mark Levinson

Ventilation The Nº436/434 uses a sophisticated ventilation system that

combines passive convection and active, fan-driven cooling to

maintain normal operating temperatures under a wide range of

conditions. Heat sinks are crosscut to allow for both horizontal

and vertical airflow, ensuring that the Nº436/434 delivers

maximum performance and reliability at all times.

When the Nº436/434 is installed in a location with reasonable

temperatures and ventilation, convection cooling alone provides

adequate heat dissipation at low and moderate listening levels.

When operating temperatures exceed a certain level, two

temperature-controlled, variable-speed fans automatically activate

to provide additional cooling.

Note The Nº436/434 fans are extremely quiet, even when running

relatively hard. In some cases, the fans may be heard when lowering

master volume after an extended period of high-volume listening.

When the Nº436/434 is taken out of standby, the fans will activate

momentarily to remove excess dust that may have accumulated in

the heat sinks.

•DO select a dry, well-ventilated location out of direct sunlight.

•DO NOT obstruct the ventilation holes on the top and bottom

of the Nº436/434 or reduce airflow through the Nº436/434.

•DO NOT place the Nº436/434 on a thick rug or carpet or

cover the Nº436/434 with a cloth, as this might prevent proper

cooling. If the Nº436/434 is placed on the floor, use a thick

piece of tempered glass to provide firm support and proper

ventilation.

•DO NOT expose the Nº436/434 to high temperatures,

humidity, steam, smoke, dampness, or excessive dust. Avoid

installing the Nº436/434 near radiators and other heat-

producing appliances.

1-7

Nº436/434 Getting Started

Power Requirements

When shipped, the Nº436/434 is configured for 100V, 120V, 220V,

230V or 240V AC power operation at 50 or 60Hz based on the

country for which it is manufactured. Before operating the

Nº436/434, make sure the ~ac mains connector label indicates the

correct operating voltage for the current location.

Caution! DO NOT attempt to adjust the operating voltage. Consult an

authorized Mark Levinson dealer if the operating voltage is

incorrect or if the operating voltage must be changed for

relocation purposes.

BE ADVISED that different operating voltages may require the

use of different power cords and/or attachment plugs. Contact

an authorized Mark Levinson dealer for assistance.

The Nº436/434 is capable of passing remarkable musical signals

regardless of signal and loudspeaker demands. On either an

instantaneous or continuous basis, these power amplifiers can

drive exceptional power levels into most all loudspeaker loads.

Depending on listening habits, loudspeaker demands, and the

number of power amplifiers present in the system – it is possible

for the electrical service to become the limiting performance

factor.

In this case, consider installing a dedicated AC circuit for the

home entertainment system. Contact a licensed electrician for

assistance. If more than one AC circuit is providing power to the

system, contact a licensed electrician to ensure that all components

are operating with the same solid, low-impedance ground reference.

Note Building regulations and electrical codes differ from location to

location, making it impossible to anticipate the requirements of high-

current AC circuits such as the Nº436/434 is capable of using.

Contact a local, licensed electrician for information.

Warm-up & Break-in Although the Nº436/434 delivers superior performance from the

Period first time it is powered on, this performance will continue to

improve as the power amplifier reaches its normal operating

temperature and various components “break in.” The greatest

performance improvements will occur within the first 25 to 50

hours of use. Sound quality will continue to improve for about

300 hours.

2-2

Basic Operation Mark Levinson

Front Panel (continued)

2. standby button

Places the Nº436/434 into standby or sleep mode and takes

the Nº436/434 out of standby or sleep mode.

• When the Nº436/434 is powered on, pressing the standby but-

ton places the Nº436/434 into standby or takes the Nº436/434

out of , allowing it to remain warmed-up to deliver anstandby

optimal performance at all times.

• Pressing the placesand holding standby button for four seconds

the Nº436/434 into . When the Nº436/434 is insleep mode

sleep mode, pressing the standby button takes the Nº436/434

out of sleep mode. When taken out of sleep mode, the

Nº436/434 automatically enters standby.

3. indicator LED

Indicates the operating state of the Nº436/434 and provides

diagnostic information if a fault condition occurs. The table

below describes all indicator LED behaviors.

See “Extensive Protection” for additional information about

fault conditions. If the Nº436/434 will not power on at all

(even to sleep mode), examine ~ac mains connections or

have an authorized Mark Levinson dealer inspect the internal

fuses (which are not user-serviceable).

LED Behavior Description

Fully lit Indicates that power is connected to

the Nº436/434 (on).

Slowly blinking Indicates that the Nº436/434 is in

standby.

Dimly lit Indicates that the Nº436/434 is in

sleep mode.

Unlit Indicates that power is disconnected

from the Nº436/434 (off).

Rapidly blinking Indicates that a power-related fault

(lit for longer intervals) has occurred.

Rapidly blinking Indicates that a signal-related fault*

(lit/unlit for equal intervals) has occurred.

Rapidly blinking Indicates that a thermal-related fault

(unlit for longer intervals) has occurred.

*Signal-related faults include significant DC offsets at the output due to either

DC in the input signal or a failed component within the amplifier OR excessive

current demands due to a short-circuited loudspeaker wire.

2-3

Nº436/434 Basic Operation

Rear Panel

The numbers in the rear panel illustration shown above correspond

with the numbered items in this section.

Caution! Never make or break connections to the Nº436/434 unless it

and all associated components are powered off and disconnected

from electrical outlets. Before making connections to the Nº436/

434, make sure the associated preamplifier master volume is set

to a reasonable level.

1. rear panel handles

Allow for safe, convenient lifting and moving of the Nº436/

434. Refer to “Unpacking” for additional information.

Caution! DO NOT attempt to lift the Nº436/434 from its packing carton

alone.

DO NOT attempt to lift the Nº436/434 while bending at the

waist. When lifting, stand as straight as possible using the leg

muscles to lift.

1 2 1

~ ac mains

1slave in slave out RS-232

trigger

out

MA R K

E V

436

inputs communication

4 5 7

2-4

Basic Operation Mark Levinson

Rear Panel (continued)

2. fan outlet

Provides an outlet for active, fan-driven cooling. A 1/4-inch

(6.4mm) inlet between the front panel and the chassis provides

air intake for the forced-air cooling system. See “Ventilation”

for additional information.

3. loudspeaker binding posts (main outputs)

Provide audio output. Two custom-made, gold-plated, high-

current labeled and binding posts + (positive) – (negative) are

available. In general, positive binding posts are red and

negative binding posts are black.

Caution! NEVER connect power amplifier outputs to any component

other than a loudspeaker.

NEVER short-circuit power amplifier outputs.

NEVER connect power amplifier outputs to another power

amplifier’s outputs.

For best performance, use high-quality loudspeaker cables. To

connect these cables, use a high-quality spade or hook lug

soldered to the cable or crimped to the cable with extremely

high pressure.

• Connect the on the Nº436/434+ (positive) binding post

to positive input on the associated loudspeaker.

• Connect the on the Nº436/434– (negative) binding post

to negative input on the associated loudspeaker.

Spade Lug Hook Lug

2-5

Nº436/434 Basic Operation

Caution! DO NOT OVER-TIGHTEN the Nº436/434 binding posts. The

innovative design of these binding posts provides more leverage

than more traditional designs. Tight, high-contact pressure

connections can be achieved with finger-tightening. Special

tools are not needed.

DO NOT FORCE the Nº436/434 binding post “wings” up and

over a bent or oversized connector. Doing so may result in

binding post damage. If the connector obstructs “wing”-turning,

slide it into place when the binding post opening provides a

snug fit. Then, use quarter-turns to tighten the connection as

needed.

4. balanced input connector

Provides balanced audio input. One female XLR connector is

available to accept signals from an associatedbalanced input

preamplifier.

For best performance, use balanced connections whenever

possible. Refer to the illustration shown to the left and to the

associated preamplifier documentation to ensure that

Nº436/434 XLR input pin assignments correspond to the asso-

ciated preamplifier XLR output pin assignments. If not, wire

the cable so that the appropriate input pin connects to the

appropriate output pin.

Note When the Nº436/434 is shipped, shorting-straps are installed

between pins 1 and 3 of the connector. Thesebalanced input

shorting-straps REMOVED must be when balanced connections

are made. These must be shorting-straps INSTALLED when

unbalanced connections are made. Installing the shorting-straps

reduces the chance of noise at the (otherwise un-terminated) inverting

balanced input connector.

5. unbalanced input connector

Provides unbalanced audio input. One RCA connector is

available to accept signals from an associatedunbalanced input

preamplifier. These signals are converted to balanced signals

upon receipt, and processed as balanced signals thereafter. If

the associated preamplifier does not support balanced

connections, connect the RCA output on the preamplifier to

the RCA connector on the Nº436/434.

Pin 1

Pin 3 signal – (inverting)

signal + (non-inverting)

signal ground

connector ground lug: chassis ground

PUSH

Pin 2

Balanced Input Connector

2-6

Basic Operation Mark Levinson

Rear Panel (continued)

6. Link communication ports

Provide “links” to compatible Mark Levinson preamplifiers

and power amplifiers, allowing the Nº436/434 to share Link

controls with these components. Two 6-pin modular RJ-11

jacks labeled slave in and slave out are available.

The slave in communication port can be connected to a

compatible Mark Levinson preamplifier or power amplifier,

and the slave out communication port can be connected to a

compatible Mark Levinson power amplifier.

Note Refer to “Linking” linking the Nº436/434 to other MarkBEFORE

Levinson components.

7. RS-232 port

Provides serial control. One connector labeled RS-232 is avail-

able.

8. trigger input & output connectors

Provide DC trigger control. One 1/8-inch mini-jack labeled

trigger in is available to receive 12 or 5V DC signals from a

connected component, and one 1/8-inch mini-jack labeled

trigger out is available to pass these signals along to a

connected power amplifier. The illustration to the left shows

tip polarity requirements.

Connect the trigger input connector on the Nº436/434 to the

trigger output connector on a compatible component.

Toggling the connected component between on and standby

will toggle the Nº436/434 between on and standby.

Connect the connector on the Nº436/434 totrigger output

the trigger input connector on a compatible power amplifier.

The Nº436/434 will pass incoming trigger signals along to the

connected power amplifier, creating a “daisy-chain” of trigger

control.

5 to 12V, positive tip polarity

Mini-plug Tip Polarity

2-7

Nº436/434 Basic Operation

9. ~ac mains connector

Provides power to the Nº436/434 through the supplied power

cord when the supplied power cord is connected to the ~ac

mains connector and an electrical outlet. One IEC-standard

AC mains receptacle labeled ~ac mains is available.

Note Before operating the Nº436/434, make sure the ~ac mains connector

label indicates the correct for the current location.operating voltage

Warning! The Nº436/434 has been safety-tested and designed for operation

with a three-conductor power cord. Do not defeat the “third

pin” or “earth ground” of the power cord.

The Nº436/434 includes internal fuses as a final stage of

protection. The protection circuitry is designed so that only a

catastrophic failure will cause these fuses to blow. If this

occurs, disconnect the power cord from the Nº436/434 ~ac

mains connector and the electrical outlet. Then, contact an

authorized Mark Levinson dealer for assistance. DO NOT

attempt to replace the fuse. There are no user-serviceable

parts within the Nº436/434.

Warning! Potentially dangerous voltages and current capabilities exist

within the Nº436/434, even when power is disconnected. DO

NOT attempt to open the power amplifier’s chassis. There are

no user-serviceable parts inside the power amplifier. Refer all

servicing to an authorized Mark Levinson dealer.

2-8

Basic Operation Mark Levinson

Linking

Linking is available for all Mark Levinson components with Link

or , communication ports, including master slave in, and

slave out communication ports. These communication ports

“link” compatible Mark Levinson components in a slave chain,

allowing them to share Link controls.

The Nº436/434 offers two Link communication ports labeled slave

in and slave out slave in. The communication port can be

connected to a compatible Mark Levinson preamplifier or power

amplifier, and the communication port can be connectedslave out

to a compatible Mark Levinson power amplifier.

The Nº436/434 can be connected to:

• Nº30 Series preamplifiers, including the Nº32, Nº38, and

Nº38S.

• Nº300 Series preamplifiers, including the Nº320S, Nº326S,

Nº380, and Nº380S.

• Nº400 Series power amplifiers, including the Nº431 and

Nº432.

• Nº39 and Nº390S CD Processors.

• Refer to the appropriate owner’s manual for Link compatibility

information about other Mark Levinson components.

Link Connections •DO use Link or communication ports, such as master,

slave in, and slave out communication ports. DO NOT use

RS-232 ports or other rear panel connectors.

•DO use Link communication cables, which are available at

authorized Mark Levinson dealers.

•DO use constructed Link communication cables. See

“Constructing Link Communication Cables” for additional infor-

mation.

Caution! Link connections must be made using Link communication ports

and Link communication cables. Connections made using other

connectors or cables may damage the Nº436/434 and other

linked components, possibly voiding the manufacturer’s warranty

and/or standard repair policies.

2-9

Nº436/434 Basic Operation

Constructing Link Link communication cables can be constructed using an

Communication Cables 8-conductor modular telephone cable with the appropriate plug

crimped on each end.

• Use an 8-pin RJ-45 plug when connecting to a preamplifier.

RJ-45 plugs provide an 8-pin connection.

• Use a 6-pin RJ-11 plug when connecting to the Nº436/434 or

another power amplifier. RJ-11 plugs provide a 6-pin connection

in which connector pins 7 and 8 are not used.

Note BEFORE making Link connections, refer to the appropriate

owner’s manual for Link or communication port specifications

for other Mark Levinson components.

When linking components with constructed Link communication

cables, twist the cable 180˚ as shown in the illustration below for

a straight-through (pin 1-to-pin 1) connection.

Mark Levinson

Preamplifier

Nº436/434

Power Amplifier

180˚ Twist

8-Pin RJ-45 Plug (Pin 1)

6-Pin RJ-11 Plug (Pin 1)*

Locking Tab Locking Tab

Nº436/434

Power Amplifier

Mark Levinson

Power Amplifier

180˚ Twist

6-Pin RJ-11 Plug (Pin 1)*

Locking Tab Locking Tab

*Pins 7 and 8 are not used

Creating a Slave Chain Making Link connections creates a that facilitatesslave chain

communication among linked components, allowing them to

share Link controls.

Slave chains that include the Nº436/434 must include:

•Compatible Mark Levinson components. The Nº436/434 is

compatible with the components listed on the previous page.

Refer to the appropriate documentation for Link compatibility

information about other Mark Levinson components.

• Components connected in a certain order to prevent

communication from terminating. Power amplifiers such as

the Nº436/434 must be the last component in a slave chain.

Constructed Link Cables

2-10

Basic Operation Mark Levinson

Creating a Slave Chain (continued)

Note The slave chains in this section include preamplifiers and power

amplifiers. However, slave chains can also include digital audio

processors and digital transports. Refer to the appropriate owner’s

manual for information about including these Mark Levinson

components in a slave chain.

The table below indicates requirements for preamplifiersslave chain

and power amplifiers.

Note The Nº39 and Nº390S CD Processors can serve as either a digital

audio processor or a digital transport in a slave chain.

Note Link and communication port names differ among Mark

Levinson components. On some Mark Levinson power amplifiers, the

slave in communication port is labeled input and the slave

out controlcommunication port is labeled . Refer to the

appropriate owner’s manual for Link and communication

port names for specific Mark Levinson components.

To create a slave chain that includes the Nº436/434:

1. Make sure the Nº436/434 and all associated components are

powered off.

2. Connect the slave in communication port on the first power

amplifier to the slave out communication port on the

preamplifier.

Component Slave Chain Requirements

Preamplifier

(e.g., Nº320S)

Power Amplifier

(e.g., Nº436/434)

• No maximum number per slave chain.

• Connect the slave out communication port on the

preamplifier to the communication port onslave in

the first power amplifier.

• Maximum of six per slave chain.

• Connect the slave in communication port on the first

power amplifier to the slave out communication port

on the preamplifier.

• Connect up to six power amplifiers in a “daisy chain”

using slave in-to-slave out communication port

connections. The slave out communication port on

the last power amplifier is not connected.

2-11

Nº436/434 Basic Operation

If desired, connect the slave out communication port on the

first power amplifier to the slave in communication port on

another power amplifier. Up to six power amplifiers can be

included in a slave chain using “daisy chain” slave in-to-slave

out communication port connections. The slave out

communication port on the last power amplifier is not

connected.

Refer to the table on the previous page and to the illustration

to the left for additional assistance.

3. When Link connections have been made, power on linked

components ONE AT A TIME in the order specified below.

Allow each component to complete its initialization sequence

before proceeding to the next component.

A. Digital Audio Processor

B. Digital Transports

C. Preamplifier

D. Power Amplifiers (begin with the first power amplifier in

the slave chain)

At this point, the front panel standby LEDs on all linked

components should be blinking in unison.

Note To ensure proper functioning of Link controls, linked components

must be powered on ONE AT A TIME in the following order: digital

transport(s), then digital audio processor, then preamplifier, then

power amplifier(s). DO NOT use a power strip switch to power on

several components at once. When power is supplied to a power

strip, power is automatically supplied to connected components

without a power button.

4. Take the linked preamplifier out of standby.

• All linked power amplifiers should come out of standby as

well. If this does not occur, repeat steps 3 and 4. If problems

persist, contact your authorized Mark Levinson dealer.

slave out

Nº320S

Preamplifier

Step A:

Connect the (slave out)

communication port on the preamplifier

to the communication portslave in

on the first power amplifier.

Nº436

Power Amplifier

Step B:

Connect the communicationslave out

port on the first power amplifier to the

slave in communication port on the

second power amplifier.

Nº434

Power Amplifier

Step C:

Connect the communicationslave out

port on the second power amplifier to the

slave in communication port on a third

power amplifier. This step can be repeated

to include up to six power amplifiers in the

slave chain.

If no additional power amplifiers are included

in the , the last power amplifierslave chain

slave out communication port is not

connected.

slave in

slave inslave out

Sample Slave Chain

Preamplifier Power Amplifier(s)

• Placing the linked

preamplifier into standby

places all linked power

amplifiers into standby.

• Taking the linked

preamplifier out of

standby takes all linked

power amplifiers out of

standby.

• ,If a linked power amplifier experiences a fault condition

it reports the fault condition to the linked preamplifier.

The power amplifier’s number and fault condition

code appear on the preamplifier’s front panel display.

• The power amplifier number refers to its position in

the slave chain. For example, AMP1 refers to the first

power amplifier in the slave chain.

• Power amplifier codes are listed below.fault condition

See “Extensive Protection” for additional information.

–HOT! indicates a thermal-related fault condition.

–DCO! indicates a signal-related fault such as an

uncorrectable DC offset.

• Placing a linked power

amplifier into standby

places all other linked

power amplifiers into

standby.

• Taking a linked power

amplifier out of standby

takes all other linked

power amplifiers out of

standby.

2-12

Basic Operation Mark Levinson

Link Controls Linking Mark Levinson components allows them to share Link

controls. The table below provides a general description of

controls the Nº436/434 shares with linked preamplifiers and

power amplifiers. Some controls may not be available for certain

component combinations. Other Mark Levinson components may

share additional controls. Refer to the appropriate Mark Levinson

owner’s manual for additional information.

Note the following:

• To ensure proper functioning of Link controls, linked

components must be powered on ONE AT A TIME in the

following order: digital audio processor, then digital transport(s),

then preamplifier, then power amplifier(s).

•Link controls must be enabled on each linked digital transport’s

linking menu, which allows activation and deactivation of

individual Link controls. Refer to the appropriate Mark

Levinson owner’s manual for additional information.

• Some Mark Levinson digital transports accommodate a maximum

of four front panel display characters. In these cases, certain

input names appear abbreviated on the front panel display.

For example, an input named No320S will appear as No32 on

the digital transport front panel display even though the

input is associated with the Nº320S.

• The linked preamplifier and power amplifier(s) must be in the

same standby-state to allow linked power amplifier(s) to enter

standby after a power failure.

Standby

Link

Fault Condition

Link

Component

Link Control

3-1

Troubleshooting

Incorrect operation is sometimes mistaken for malfunction. If

problems occur, refer to this section for troubleshooting information.

If problems persist, contact your authorized Mark Levinson dealer.

1. No audio and the indicator LED is not lit.

• Examine ~ac mains connections to ensure the power cord

is connected to the ~ac mains connector and an electrical

outlet.

• Make sure the Nº436/434 is powered on using the power

button.

• Examine the electrical circuit breaker to ensure that power

is supplied to the electrical outlet to which the Nº436/434

is connected.

• A power loss or power outage may have occurred. In this

case, power cycle the Nº436/434 using the power button,

waiting at least 10 seconds between powering the

Nº436/434 off and on.

• A fuse may be blown inside the Nº436/434. In this case,

disconnect the power cord from the ~ac mains connector

and the electrical outlet. Then, contact an authorized

Mark Levinson dealer. DO NOT attempt to replace the

fuse. There are no user-serviceable parts within the

Nº436/434.

Warning! Potentially dangerous voltages and current capabilities exist

within the Nº436/434, even when power is disconnected. DO

NOT attempt to open the power amplifier’s chassis. There are

no user-serviceable parts inside the power amplifier. Refer all

servicing to an authorized Mark Levinson dealer.

Troubleshooting & Maintenance

3-2

Troubleshooting & Maintenance Mark Levinson

Troubleshooting (continued)

2. No audio and the indicator LED is dimly lit.

• The Nº436/434 is in sleep mode. To take it out of sleep

mode, press the standby button. The Nº436/434 will enter

standby.

• A power loss or power outage may have occurred. In this

case, power cycle the Nº436/434 using the power button,

waiting at least 10 seconds between powering the

Nº436/434 off and on.

3. No audio and the indicator LED is slowly blinking.

• The Nº436/434 is in standby. To take it out of standby,

press the . The Nº436/434 will power on.standby button

4. No audio and the indicator LED is rapidly blinking, remaining

lit for longer intervals.

• Examine ~ac mains connections to ensure the power cord

is connected to the ~ac mains connector and an electrical

outlet.

• Power cycle the Nº436/434 using the power button, waiting

at least 10 seconds between powering the Nº436/434 off

and on.

• Contact an authorized Mark Levinson dealer.

5. No audio and the indicator LED is rapidly blinking, remaining

lit and unlit for equal intervals.

• A signal-related fault is present, probably either a DC

offset or an over-current condition. If this occurs:

a. Power the Nº436/434 off using the power button.

b. Disconnect the input signal and loudspeaker wires.

c. Wait 10 seconds.

d. Power the Nº436/434 on using the power button.

If the Nº436/434 powers on, repeat these steps, reconnecting

input signal and loudspeaker wires one at a time to

determine what is causing the fault. Remember to power

the Nº436/434 off using the power button before making

or breaking connections. If the Nº436/434 does not power

on, there is an internal failure. Contact an authorized

Mark Levinson dealer.

Produktspecifikationer

Varumärke:	Mark Levinson
Kategori:	mottagare
Modell:	No436
Färg på produkten:	Zwart
Bredd:	52 mm
Djup:	83.2 mm
Höjd:	15 mm
Ljudformat som stöds:	AAC, AC3, HE-AAC, MP1, MP2, MP3
Videoformat som stöds:	AVS, H.264, MPEG2, MPEG4, VC-1
Ethernet LAN:	Nee
Medföljande kablar:	USB
Integrerad minneskortläsare:	Nee
Antal USB-anslutningar:	1
Grafikupplösningar som stöds:	1920 x 1080 (HD 1080)
Kompatibla operativsystem:	• Android 4.1.2 and later\r\n• Windows 8.1\r\n• Windows 7\r\n*Windows 7 and 8.1 compatibility requires support for Intel WiDi.
Ljudutgångskanaler:	- kanalen
Antal HDMI-utgångar:	1
Fjärrkontroll ingår:	Nee
Wifi:	Ja
Uteffekt per kanal (20-20KHz@8 Ohm):	- W
Inkluderar optisk enhet:	Nee