Trouble-shooting

Many problems have a simple cause and a corres pondinglysimplesolution.Thefollowingtabledesc ribes afewdifficultiesyoumayencounter,andthemeasu res youneedtotaketoeliminatethem.

Ifyoufinditimpossibletosolveaproblemwitht hehelp ofthesenotes,pleasedisconnecttheunitfromthe mains and ask your authorised specialist dealer for ad vice.

Protection

The Protection circuit provides outstandingly effective protectionagainstvirtuallyallformsofoverloadi ng.This itdoesbycomparingtheinputsignalbeforetheou tput stage with the output signal; if there is the sligh test discrepancy,theProtectioncircuitswitchesoffth eequip mentimmediately.

This system protects the loudspeakers very effectiv

ely

against serious damage caused by clipping or other

signaldistortingerrors.

 

Thesystemalsoincludesprotectivecircuitswhich

guard

against shortcircuit and overheating. If a problem

occurs, the output signal is switched off and the l

oud

speakercodeletters( 'A'und 'B')ontheintegralscreen starttoflash.

Ifthisshouldhappen,reducetheamplifier’svolum elevel immediately!

Afterabout20secondstheamplifierwillnormally switch itselfonagain,andthecodeletterswillceasefl ashing.

Iftheamplifierdoesnotcomeonagainafterthis

period,

theremaybeashortcircuitintheloudspeakercab

les,or

the amplifier may have become too hot; in this case

it

should be left switched off for a longer period to

cool

down.

 

Problem Table

Problem:

Machine does not switch on (green LED

 

stays dark).

 

 

 

 

 

 

 

Cause:

Mainsleadnotconnectedcorrectly.

 

 

 

 

 

 

Remedy:

Checkconnection,pushinfirmly.

 

 

 

 

 

 

Problem:

Machine does not respond to controls.

 

 

 

Cause:

M LINKcablenotconnectedcorrectly.

 

 

 

 

 

Remedy:

Checkconnection,pushinfirmly.

 

 

 

 

 

 

Problem:

System responds correctly to the front

 

panel buttons, but does not react to

 

remote control commands.

 

 

 

 

 

Cause 1:

Batteries in remote control handset ex

 

 

hausted,orfittedincorrectly.

 

 

 

 

 

Remedy:

Fit new batteries, or refit batteries with

 

 

correctpolarity.

 

 

 

 

 

 

Cause 2:

No visual contact between system and

 

 

remotecontroltransmitter(handset).

 

 

 

Remedy:

Ensure direct visual contact between

 

remotecontrolhandsetandreceiver(glass

 

 

doors may prevent contact). Maximum

 

range between transmitter and system

 

approx.6metres.

 

 

 

 

Position the system so that the sensor in

 

 

theintegralscreenisnotsubjecttodirect

 

 

sunlightorexcessivelybrightlighting.

 

 

Fluorescent lamps and

energysaving

 

 

bulbsarepowerfulsourcesofinterference.

 

 

 

 

Cause 3:

M LINK leadnotconnectedcorrectly.

 

 

 

 

 

Remedy:

Checkconnection,pushinfirmly.

 

 

 

 

 

Cause 4:

The RC address of the remote control

 

handset or the Msystem is not set

 

 

 

 

correctly.

 

 

 

 

 

 

Remedy:

Settheremotecontrolhandsetandthe

M

 

system to the same RC address (see

 

 

section 'F6 remote control handset -

 

switching the remote control address').

 

 

 

 

Note:

The

F6 remote control

handset must

 

alwaysbesettothesameRCaddressas

 

 

the Msystem.

 

 

 

 

 

 

 

Problem:

Other items of equipment (Hi-Fi, TV,

 

VCR etc.) respond to the RC commands

 

from the F6 remote control handset;

 

alternatively the M-system responds to

 

the RC signals intended for other equip-

 

ment.

 

 

 

 

 

 

Cause:

Overlapwithremotecontrolcodesusedby

 

 

othermanufacturers.

 

 

 

 

 

 

 

Remedy:

The

F6 RC handset and the

Msystem

 

mustbeswitchedtoadifferentremotecon

 

 

trol address (see section

'F6 - switching

 

the remote control address').

 

 

52

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T+A Elektroakustik PT 820 M, PA 820 M user manual Trouble-shooting, Problem Table
Page 51 Page 53

PA 820 M, PT 820 M specifications

T+A Elektroakustik has long been known for its commitment to delivering high-quality audio products that seamlessly combine advanced technology with exceptional performance. A prime example of this dedication is the T+A PT 820 M and PA 820 M, two flagship components that cater to discerning audiophiles.

The PT 820 M is a network player that offers an impressive array of features for music playback. One of its standout characteristics is its ability to support high-resolution audio formats, making it compatible with various lossless audio streaming services. With a powerful ARM Cortex-A9 processor, the PT 820 M ensures smooth and efficient operation, providing lightning-fast access to your music library. It can handle audio files up to 24-bit/192 kHz, enabling users to experience their music in the highest fidelity.

Integrating seamlessly with contemporary home networks, the PT 820 M supports streaming protocols such as UPnP, DLNA, and AirPlay. This versatility allows users to access music stored on various devices, including smartphones, tablets, and NAS systems. Additionally, the player features a built-in web interface, providing easy control and navigation through its comprehensive menu system.

On the other hand, the PA 820 M is a powerhouse amplifier designed to bring out the best in your audio setup. Featuring a robust Class A/B amplification architecture, it offers both strength and detail in sound reproduction. The integrated MOSFET output stage ensures that the amplifier can drive even the most demanding speakers effortlessly, while providing a warm and rich listening experience.

The PA 820 M also includes advanced digital signal processing capabilities, allowing users to customize their listening experience. With its carefully considered power supply design, the amplifier guarantees low distortion and high dynamic range, making it ideal for various genres of music.

Together, the PT 820 M and PA 820 M represent the pinnacle of T+A electroacoustic engineering. Their thoughtful design and cutting-edge features ensure that audiophiles can enjoy music as it was intended, delivering an unparalleled listening experience. Whether you are streaming high-definition audio or powering a premium speaker setup, these components set a new benchmark for performance and quality in the world of high-end audio.
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