NAD Electronics L75 User's Manual
Contents
1. 12 AUTO TUNING 1 Select the Tuner by turning the Source selector 2 Select the AM or FM by pressing the AM FM selector button 3 Press the Tune Preset MODE button to change to TUNING mode The PRESET CH indicator disappears rom the display This button is used to select Tuning or Preset scan mode 4 Press the UP or DOWN TUNING button within 0 5 to 2 seconds The next station broadcasting at a requency higher or lower than that of the current station is automatically detected and tuned in By pressing and holding the TUNING button for longer than 2 seconds it will continue to scan three times aster than normal speed MANUAL TUNING Manual Tuning is generally used to tune to stations broadcasting a signal that is too weak to be received by Auto Tuning 1 Select the Tuner by turning the Source selector 2 Select the AM or FM by pressing the AM FM selector button 3 Press the Tune Preset MODE button to change to TUNING mode The PRESET CH indicator disappears from the display 4 When the Tune Preset Mode button is pressed momentarily 0 5 second or less the frequency changes by a fixed step EUROPE FM 50 kHz steps AM 9 kHz steps AMERICA FM 100 kHz steps AM 10 kHz steps e Press the AM FM button for more than 4 seconds then steps changes PRESET TUNING This facility is used to store AM and FM stations in presets from 1 to 30 AUTOMATIC MEMORY PRESETTING 1 Select the Tuner by turning the Sou2. NAD Surround Sound Receiver G 3 Owner s Manual GG Manuel d installation _ EH vedienungsanleitung E Manual del Usuario GEE Manuale delle Istruzioni _ GEM Bruksanvisning o IMPORTANT SAFETY INSTRUCTIONS CAUTION e Read all of these instructions e Save these instructions for later use e Follow all warnings and instructions marked on the audio equipment 1 Read instructions All the safety and operating instructions should be read before the product is operated 2 Retain instructions The safety and operating instructions should be retained for future reference 3 Heed Warnings All warnings on the product and in the operating instructions should be adhered to Follow Instructions All operating and use instructions should be followed 5 Cleaning Unplug this product from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning 6 Attachments Do not use attachments not recommended by the product manufacturer as they may cause hazards 7 Water and Moisture Do not use this product near water for example near a bath tub wash bowl kitchen sink or laundry tub in a wet basement or near a swimming pool and the like 8 Accessories Do not place this product on an unstable cart stand tripod bracket or table The product may fall causing serious injury to a child or adult and serious damage to the product Use only with a
3. both channels driven into 8 ohms from 20 Hz to 20kHz with no more than 0 09 total harmonic distortion Improvements may result in specifications and features changing without notice Illustrations may differ from production models 25 WWW NADELECTRONICS COM 2001 NAD ELECTRONICS INTERNATIONAL All rights reserved No part of this publication may be reproduced stored or transmitted in any form without the written permission of NAD Electronics International L75 Manual 02 01 Printed in Korea
4. 23 Battery Installationi i scortare area ela Atlas aged Aigo acy a deed aan Glande wag ays 23 Troubleshooting 2 ccs cceecsc even vcs vee eee e eve ee eee a 24 SPECIFICATIONS 55 2 syed lar Re a aaa 25 CONNECTING ANTENNAS Lead type FM Antenna 75Q provided SO ANTENNA Outdoor FM Antenna 750 Matching Transformer optional FM INDOOR ANTENNA In an area with strong FM signals the T type FM antenna provided is sufficient Extend this into a T shape and connect the two wires at the base of the T to the provided matching transformer as shown After completing connection plug the transformer into the FM 75Q socket Extend the top of the T and fix with thumb tacks or the like to a wall or window frame for the best possible reception FM OUTDOOR ANTENNA In an area where FM signals are weak it will be necessary to use a 75 ohm unbalanced type outdoor FM antenna Generally a 3 element antenna will be sufficient if you live in an area where the FM signals are particularly weak it may be necessary to use one with 5 or more elements Connect the coaxial cable of the antenna to the matching transformer as shown After completing connection plug the transformer into the FM 75Q socket HOW TO CONNECT A COAXIAL CABLE TO THE MATCHING TRANSFORMER 1 Strip the cable and dress it as shown 4mm 3mm 3 Wrap the core conductor around the central metal
5. FM band RDS DISPLAY 1 Select the tuner with the Source selector 2 Press the AM FM button to select FM 3 Press the DISPLAY button Each time you press the button briefly 1 5 sec or less the modes will change as follows regardless of the current mode Essa RT RDS OFF CLOCK ON TIME OFF TIME ADJUST 3 5 7 2 4 6 8 1 2 9 11 13 10 12 o of f Dodd Dr ae 200 000 tozzo Te 3 4 oon an 10 11 12 13 Adjus Press Adjus Press and is Adjus Press Adjus Press and is Adjus Press Adjus Press the hour by pressing TIME DOWN UP button bypass current time setting and move to O will bypass On Time setting and move to Off Time setting he MEMORY button briefly The minutes will b he minute by pressing TI then replaced by the previo he hour by pressing TIME he MEMORY button briefly he minute by pressing T then replaced by the previo he hour by pressing TIME he MEMORY button briefly he minute by pressing T E USI E USI E DOWN UP butto EMORY button briefly to change to On Time y set On Time wi DOWN UP button The minute will blink at an interval of 1 second DOWN UP butto EMORY button briefly to change to Off Time y set Off Time with the hour blinking at an interval of 1 second DOWN UP button The minute will blink at an interval of 1 second DOWN UP button Press
6. SURROUND MODE choices see page 12 DTS DOLBY DIGITAL PRO LOGIC 3 STEREO HALL STEREO NOTE You must have digital audio connections and a Dolby Digital or DTS source to playback in Dolby Digital or DTS When you are monitoring ANALOG input use the left right buttons to select one of these SURROUND MODE choices see page 12 PRO LOGIC 3 STEREO HALL STEREO MAIN MENU INPUT SELECTOR DIGITAL INPUT SURROUND MODE SPEAKER CONFIGURATION LANGUAGE MAIN MENU OFF DIGITAL INPUT INPUT DVD VIDEO 4 ANALOG OPTICAL COAXIAL GO TO MAIN MENU MAIN MENU INPUT SELECTOR DIGITAL DEYI SURROUND MODE SPEAKER CONFIGURATION LANGUAGE MAIN MENU OFF SURROUND MODE SURROUND DOLBY DIGITAL DELAY TIME CENTER 5 mS REAR 15 mS NIGHT M OFF GO TO MAIN MENU WY WY RETURN STOP O CA fai TS 21 OSD ON SCREEN DISPLAY MAIN MENU INPUT SELECTOR DIGITAL INPUT SURROUND MODE SPEAKER CONFIGURATION LANGUAGE MAIN MENU OFF MAIN MENU INPUT SELECTOR DIGITAL INPUT SURROUND MODE SPEAKER CONFIGURATION LANGUAGE MAIN MENU OFF LANGUAGE ENGLISH FRENCH GERMAN 22 When you have selected DOLBY DIGITAL as your SURROUND MODE the menu will include options for adjusting the DELAY TIME see page 13 for each speaker channel Using the right left buttons the delay for the CENTER speaker can be set from 0 to 5ms and the RE
7. and hold the TIMER ON OFF button for more than 4 seconds TIME scrolls on the display and hen replaced by the current time with the hour blinking at an intervals of 1 second Otherwise press TIMER ON OFF button briefly to n Time Adjust mode Another press of TIMER ON OFF button ink at an interval of 1 second n Adjust Mode ON TIME scrolls on the display th the hour blinking at an interval of 1 second n Adjust Mode OFF TIME scrolls on the display EMORY button briefly to change to Normal Mode AVAILABLE SURROUND MODES When you use the surround function the sound creates a live atmosphere such as that experienced in movie theaters discos stadiums and concert halls This unit is provided with the following surround modes which can be selected using the SURROUND MODE switches Select the appropriate surround mode according to the program source e Note that surround speakers are needed for the Dolby Pro Logic Surround mode to function and a center speaker is needed for the 3 Stereo mode to function DTS DIGITAL THEATER SYSTEM Allows you to enjoy 5 1 or 6 discrete channels of high quality digital audio from DTS program sources bearing the B eJ or HIGH DEFINITION SURROUND trademark such as discs DVD and compact discs etc DTS DigitalSurround delivers up to 6 channels of transparent audio which means identical to the original masters and results in exceptional clarity throughout a true
8. cart stand tripod bracket or table recommended by the manufacturer or sold with the product Any mounting of the product should follow the manufacturer s instructions and should use a mounting accessory recommended by the manufacturer 9 A product and cart combination should be moved with care Quick stops excessive force and uneven surfaces may cause the product and cart combination to overturn 10 Ventilation Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating and these openings must not be blocked or covered The openings should never be blocked by placing the product on a bed sofa rug or other similar surface This product should not be placed in a built in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer s instructions have been adhered to 11 Power Sources This product should be operated only from the type of power source indicated on the marking label If you are not sure of the type of power supply to your home consult your product dealer or local power company For products intended to operate from battery power or other sources refer to the operating instructions 12 Grounding or Polarization This product may be equipped with a polarized alternating current line plug a plug having one blade wider than the other This plug will fit into the power outlet only one way This is a safety
9. feature If you are unable to insert the plug fully into the outlet try reversing the plug If the plug should still fail to fit contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the polarized plug 13 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point where they exit from the product 14 Outdoor Antenna Grounding If an outside antenna or cable system is connected to the product be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built up static charges Article 810 of the National Electrical Code ANSI NFPA 70 provides information with regard to proper grounding of the mast and supporting structure grounding of the lead in wire to an antenna discharge unit size of grounding conductors location of antenna discharge unit connection to grounding electrodes and requirements for the grounding electrode IMPORTANT SAFETY INSTRUCTIONS NOTE TO CATV SYSTEM INSTALLER This reminder is provided to call the CATV system installer s attention to Section 820 40 of the NEC which provides guidelines for proper grounding and in particular specifies that the cable ground shall be connected to the grounding system of the building as close to the point of cable entry as pract
10. fixture as shown Crimp the jagged metal fixtures so they hold the braided portion using pliers etc Put the cover back in place jagged metal Insert into slit CONNECTING ANTENNAS AM INDOOR LOOP ANTENNA AM Loop Antenna provided The high performance AM loop antenna provided with the receiver is sufficient for good reception in most areas Connect the loop antenna s wires to the AM antenna terminals as shown Place the antenna on a shelf for example or hang it on a window frame etc in the direction which gives the best reception as far away as possible from the entire system speaker cords and the power cord to prevent unwanted noise AM OUTDOOR ANTENNA If the AM loop antenna provided does not deliver sufficient reception because you are too far from the transmitter or in a concrete building etc it may be necessary to use an outdoor AM antenna E i Use an insulated wire more than 15 ft 5 m long strip one end and connect this to the terminal as shown E E 3 lt The antenna wire should be strung outdoors or indoors near a window For better reception connect the GND terminal to a reliable ground NOTE Even when using an outdoor AM antenna do not disconnect the AM loop antenna CONNECTING SPEAKER SYSTEMS CAUTION To avoid damage the speakers by inputting a sudden high level signal be sure to switch the power off before connecting the speakers Connect the cabl
11. front center sub woofer and rear speakers with this control FM MUTE MONO This button combines two functions it switches the tuner from stereo to mono and disengages the mute circuitry at the same time The muting circuit will mute the Tuner in between radio stations when searching or tuning If FM broadcasts with weak signal strength are received the FM muting function works automatically to cut the signals eliminating loud noise SURROUND MODE Button Surround mode changes follows whenever you press this button e Refer to available surround modes page 12 e Refer to OSD surround mode page 16 17 NOTE 7 You can not select DTS DOLBY DIGITAL mode in Analog mode or except DVD AUX Function To select DTSIDOLBY DIGITAL mode you should select optical or coaxial mode by DISPLAY button DISPLAY Button Press this button to switch the digital signal when DVD AUX selected Refer to OSD digital input page 16 When DVD selected Optical Coaxial Analog When AUX selected Optical Analog CAUTION In tuner function this button toggles the display to show the PS RT Fk Tp 400 e 200 200 oA ODO e lt 2 4 3 RADIO RECEPTION o lt gt 000 000 000 o CO O Q TI TI 1 2 3 4 o gt 000 270 900 o LEO O Q _
12. 360 soundfield The term DTS is a trademark of DTS Technology LLC Manufactured under license from DTS Technology LLC NOTE The DTS program sources should be played back in the DTS mode If not it will sound like continuous noise DOLBY DIGITAL SURROUND The Dolby Digital surround format lets you enjoy up to 5 1 channels of digital surround sound from a Dolby Digital program source If you connect a DVD player equipped with an DOLBY DIGITAL output to the DODIGITAL Dolby Digital DTS PCM DIGITAL IN jack on a surround receiver amplifier or surround processor and play DVD with the par mark you can enjoy even better sound quality greater spatial accuracy and improved dynamic range This is because Dolby Digital delivers up to 5 totally discrete full frequency audio channels front left and right center and surround left and right plus 0 1 channel called LFE bass only effects channel Dolby Digital is a system developed by Dolby Laboratories that transmits 5 1 channels of digital signals The surround system developed for movie theaters using this system is called Dolby SR D Surround Digital Because each channel is completely independent a realistic sound field with a three dimensional feel is achieved which gives the sound a sense of distance movement and relative position creating a surprisingly real and powerful sense of presence Some Dolby Digital programs carry information that allow you to compress th
13. AR speakers can be set from 0 to 15 ms In the DOLBY PRO LOGIC mode the REAR speakers can be set for 15 to 30 ms of delay NIGHT MODE which is only available in Dolby Digital surround mode Because of the possible wide dynamic range of Dolby Digital material it may sometimes be desirable to reduce the extreme between soft and loud passages when playing at low volume setting to retain intelligibility To get back to the MAIN MENU move the arrow to GO TO MAIN MENU and press ENTER 6 Entering SPEAKER CONFIGURATION see page 13 from the MAIN MENU brings up a menu that allows you to select the speaker configuration in use Your choices will vary according to the SURROUND MODE see page 12 you are using Use the up down buttons to move the arrow and the right left buttons to make your selections NOTE Regardless of the available front speakers select large for front when there is no subwoofer connected to redirect bass frequencies to the front speakers e In the case of DTS or DOLBY DIGITAL your choices are FRONT SMALL or LARGE CENTER NONE or SMALL or LARGE REAR NONE or SMALL or LARGE SUB ON or OFF e In the case of DOLBY PRO LOGIC your choices are FRONT SMALL or LARGE CENTER NONE or SMALL or LARGE REAR NONE or SMALL or LARGE SUB ON or OFF e In the case of 3 STEREO your choices are FRONT SMALL or LARGE CENTER NONE or SMALL or LARGE REAR NONE or SMALL or LARGE SUB ON or OFF 7 Entering LANGUAGE from the MAIN MENU bring
14. N jacks e Connect the cassette deck output LINE IN jacks to the OUT jacks White White y 4 L Oecd I gt rea L RO Dum agi gt t t Red Red AUDIO CONNECTION CORDS To make these connections use interconnect cords with RCA plugs Make sure that you connect the white pin plug to the white jacks left and the red pin plug to the red jacks right CONNECTING THE PRE OUT JACKS Since subwoofer signals are not amplified use a subwoofer with a built in amplifier or connect it to the amplifier connected to this unit NOTE e Ifa speaker is connected directly to the PRE OUT jack without an amplifier connected no sound comes from the speaker CONNECTING THE AC POWER Be sure to connect the power cord to an AC outlet which supplies the correct voltage e Hold the power plug when plugging or unplugging the power cord AC OUTLETS AH VERSION CAUTION Make sure that the total power consumption of all equipment connected to the outlets on the receiver does not exceed 100 watts CONNECTING VIDEO EQUIPMENT AUDIO SIGNAL JACKS e Connect the video deck VCR LINE output AUDIO OUT jacks to the IN VIDEO 1 jacks and the video deck VCR LINE input AUDIO IN jacks to the OUT VIDEO 1 jacks e Connect the LD player AUDIO OUTPUT jacks to the VIDEO 2 jacks e Connect the DVD player s analogue Left and Right AUDIO OUTPUT jacks to t
15. OLBY DIGITAL Mode 0 15 ms in 1 ms step S Delay 0 5 ms in 1 ms step C Delay DOLBY PRO LOGIC Mode 15 30 ms in 1 ms step S Delay In the surround modes the sound from the rear speakers should be delayed slightly relative to that from the front speakers The optimum delay time will depend on acoustic properties whether the walls and furnishings reflect or absorb sound etc It is recommended that you try different delay times to obtain the best effect The delay is digitally synthesized for the highest sound quality with minimum noise and distortion The delay time can be set independently for each surround mode using the DELAY TIME buttons with the current setting shown in the display OSD ON SCREEN DISPLAY When your NAD Surround sound Receiver is connected to a television you can operate the unit with the remote control by making selections from on screen menus If a menu remains on the screen for a period of time without a selection being made the display will disappear Most menus disappear after 12 seconds Important The on screen display will not operate unless the receiver is connected to the television with a video or s video cable from the monitor out jacks Before using the on screen display the ON SCREEN SELECTOR SWITCH on the rear panel of the receiver must be set to the type of video connection being used to supply video signal from your receiver to your S VIDEO VIDEO TV monitor e VIDEO Set the switch to t
16. ONS BASIC OPERATIONS 1 2 A w au Press the POWER button to ON Adjust the tone as required with the BASS and TREBLE tone controls Adjust the balance between the left and right channels with the BALANCE control Select the desired source with the Source Selector An indicator for the selected source lights up Select the desired surround mode with the SURROUND MODE buttons The SURROUND indicator lights in the display e Refer to available surround modes page 12 e Refer to OSD surround mode page 16 17 Start playing the source component Gradually turn up the volume to the required level with the MASTER VOLUME control O topos e 200 200 o OO ale SS a EI AE AUDIO ADJUSTMENTS POWER STANDBY ON Button Press this button to turn the power on Press it again to turn the system off power standby mode The STANDBY indicator lights up in power standby mode and goes out when this unit is turned on BASS TREBLE Tone Controls These two tone controls BASS and TREBLE can be used to obtain a flat frequency response or a tone which suits your individual listening preference The Bass control adjusts low frequencies and the TREBLE control adjusts the high frequencies BALANCE Control This control is used to adjust the balance between the left and right channels Normally set to the center position MASTER VOLUME Control Adjust the overall sound volume from the
17. OUBT CONSULT A COMPETENT ELECTRICIAN BEFORE USE READ THIS BEFORE OPERATION e Choose the installation location of your unit carefully Avoid placing it in direct sunlight or close to a ABOUT THE POWER SWITCH source of heat Also avoid locations subject to vibrations and excessive dust heat cold or moisture This unit is not equipped with a e The ventilation holes should not be covered Make sure there is at least 50 cm of space above and at primary power switch Even when least 10 cm of space beside the amplifier receiver Do not place a CD player or other equipment on top the units STANDBY ON button is of the amplifier receiver set to STANDBY off the power e Donotopen the cabinet as this might result in damage to the circuitry or electrical shock If a foreign supply to this unit is not object should get into the set contact your dealer completely turned off If you wish e When removing the power plug from the wall outlet always pull directly on the plug never yank the to completely turn the power off cord disconnect the power cord from e The ventilation should not be impeded by covering the ventilation openings with items such as the household AC outlet newspapers table cloths curtains etc e No naked flame sources such as lighted candles should be placed on the apparatus e The apparatus should not be exposed to dripping or splashing and no objects filled with liquids such as vases should be placed on the apparatus e This
18. S jack NOTE When playing movie or music with 5 1 channels through Dolby Digital or DTS multi channel signal will be automatically down mixed to 2 channel stereo VFL Display will show Digital stereo icon or DTS stereo icon The output via speakers will be muted MUTING BUTTON ON THE REMOTE CONTROL UNIT Press this to mute the sound from the speakers and headphones when answering the telephone etc To restore the original volume press the MUTING button again While Muting is engaged the Display will say MUTE SLEEP TIMER OPERATION SLEEP Timer Function on the Remote Control Unit This function allows you to preprogram the receiver to switch its own power off automatically You can then enjoy the audio video system for a specified amount of time without having to worry about turning the unit off later Each press of the SLEEP button changes the time indication by 10 minutes SLEEP 90 SLEEP 80 SLEEP 10 Released condition To let the remaining time until power off appear on the display while the sleep timer is engaged press the SLEEP button once WHEN TO USE RESET SWITCH 1 When this system is subjected to an electrical shock 2 When the power is irregular In these cases try the following in power standby mode H Rear Panel Press the RESET switch lightly once or twice with a pencil or ballpoint pen NOTE When the RESET switch is pressed all the memory will be cancelled AUDIO OPERATI
19. apparatus is designed to be used in moderate climates CONTENTS Important Safety Instruction nnana nnaman 2 4 BeforeUse omida t redran ein cid ERE Pn i E oa 5 Connecting AntennaS i iir i ie an il 6 7 Connecting Speaker Systems nnn nna nananana 7 Connecting Audio Equipment eee eee eee 8 Connecting Video Equipment eee 9 Connecting Digital Audio Output Equipment eee 9 Audi Operations irira a ERA ERE RA vl ace a i 10 11 Audio Adjustments c radianti i A e i 11 Radio Reception ien rei ee A ee alae ateue 13 AUTO TUNING tea elio A AT do an 13 ManuakTURINd Ca reno RANA AA TE E eto AI ee NSA 13 Automatic Memory Presetting 0 13 Manuial MemoryPr esetting esitenu ie ia ui Mahe e LR Lala via 13 Deleting a Stored preset frate an a Aia eee 13 RDS Radio Data System eee eee eee 14 Clock On time Off time adjust i 14 Available Surround Modes iii 15 16 Speaker Positioning iii a 17 Speaker Configuration cece eee ee eens 17 Surround Effects aein aged ali iaia Lio 18 Delay Miner bt ee alae ee eni Mo ty he akg te el ig 18 OSD On Screen Display sinirii ro 19 22 Automatic OSD fUNGHON ss iii io iii DA la Maiani 19 20 OSOON POSION certi io ie hs Ba OA ie bia eee hi 20 22 Remote Control Unit siii aaa Ra amr even 23 Using th Remote Control Unit iii a RT
20. appropriate key in the top section of the remote control This menu will remain on the screen for only 7 seconds without input VIDEO DVD VIDEO 1 VIDEO 2 AUDIO DVD VIDEO 1 VIDEO 2 TUNER TAPE AUX 19 OSD ON SCREEN DISPLAY 20 SURROUND DOLBY DIGITAL DELAY TIME REAR QmS LEVEL_TRIM CENTER QdB SUB 0dB REAR L dB REAR R dB TEST TONE n 8 CENTER QdB IL TRS REAR R 0dB un L 0dB RL SW RR SUB 0dB GO TO MAIN MENU VIDEO INPUT DVD AUDIO INPUT DVD DIGITAL INPUT ANALOG SURROUND STEREO GO TO MAIN MENU MASTER VOLUME HIM M MAIN MENU INPUT SELECTOR DIGITAL INPUT SURROUND MODE SPEAKER CONFIGURATION LANGUAGE MAIN MENU OFF INPUT SELECTOR VIDEO DVD AUDIO DVD GO TO MAIN MENU SYSTEM STATUS When operating the system in DOLBY DIGITAL DOLBY PRO LOGIC OR 3 STEREO you can display the current status of your delay times and volume settings press any buttons on the remote controller related to SURROUND including SURROUND ON OFF This display will remain on screen for 12 seconds TEST TONE In DOLBY DIGITAL DOLBY PRO LOGIC or 3 STEREO MODES press TEST button Test Tone scrolls automatically every 2 sec from left center right rear right rear left to subwoofer in continuous cycle Press the Surround button on the remote control press the Test button within five seconds se
21. d Effects Important The center and rear speakers only operate when Probable Cause Speakers are connected wrong Power line of a fluorescent light is installed near this product One of the input cords is disconnected Connect the input cords securely Speaker impedance is less than prescribed for this unit Speaker polarity is reversed A slight noise may be heard because the method used for modulation of FM stereo broadcasts is different than that used for monaural broadcasts Poor location and or direction of the antenna Transmitting station is too far away Broadcast signals are being disturbed Speaker system connections are not correct Remedy After checking if needed reconnect Place this product as far away as possible from electric devices with interference The BALANCE control is set to one side Adjust the BALANCE control After turning off the power and then turning it on again reduce the volume or change to the correct 8 ohm speakers Check all speakers for correct polarity e Try reducing the treble sound by turning the treble controls e Try changing the location height and or direction of the antenna e Set the FM mode to monaural by pressing the FM MUTE MONO button Note that the broadcast will then be heard as monaural sound e If an indoor antenna is being used change to an outdoor antenna e Try using an antenna with more elements he unit is set on a Surrou
22. e dynamic range of sound track without degrading the sound quality for softer sound effects when you listen late at night LFE LOW FREQUENCY EXTENSION This channel delivers separate non directional bass signals to the subwoofer for more dynamic deep bass sound effects DOLBY PRO LOGIC SURROUND Use this mode when playing movie or music video software which carries the DION DOLBY SURROUND mark This mode provides the effect of being in a movie theater or live concert house an effect with an intensity which can only be obtained through DOLBY PRO LOGIC SURROUND The main feature of DOLBY PRO LOGIC SURROUND is that the separation between the various channels is significantly improved from he 3 dB of previous systems to 26 40 dB As a result the effect of the front back left right movement of the sound image as well as the sense of ixed position in the sound image is much clearer and more dynamic than before n addition movie dialogue and other sounds which should naturally be heard from the center are output hrough an independent center channel providing a high degree of focus for dialogue TAD lt Dooe 000 200 OO db o Seo _ SURROUND MODE 15 AVAILABLE SURROUND MODES 16 3 STEREO Front speakers receive rear surround speaker signals in addition to front speakers signals Center speaker works similarly as that of Dolby Pro Logic mode In this way you can enjoy playback sound
23. e from each speaker to the corresponding terminal on the rear of the receiver e Most speaker cables have different markings textures or colors to help you tell the difference between negative and positive e Be sure to connect the positive terminal on each speaker to the positive terminal on the receiver Similarly connect the negative terminal on the speaker to negative terminal on the receiver NOTES e Use speakers with a nominal impedance of 8 ohms or more HOW TO CONNECT 1 Strip back the cable covering by about 1 cm and twist the wire strands together 2 Turn the terminal cap counterclockwise to loosen it The speaker terminal caps cannot be fully removed from the base 3 Insert the wire into the terminal fully and turn the terminal cap clockwise to securely connect it 4 Make sure it is fastened firm by pulling the cable lightly CONNECTING AUDIO EQUIPMENT CAUTION e Do not plug the power cord of any component into AC outlets and do not turn their POWER switches on until all connections have been performed e The cable connectors should be fully inserted into the jacks Loose connections may cause hum and noise e Read the instructions for each component you intend to use with the receiver AUDIO SIGNAL JACKS AUX IN jacks Connect the Auxiliary output jacks to the AUX IN jacks TAPE IN OUT jacks e Connect the TAPE jacks to the cassette deck e Connect the cassette deck output LINE OUT jacks to the I
24. ecommended by the manufacturer 24 Heat The product should be situated away from heat sources such as radiators heat registers stoves or other products including amplifiers that produce heat 2 IMPORTANT SAFETY INSTRUCTIONS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSULATED DANGEROUS VOLTAGE WITHIN THE PRODUCT S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS i THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL WITHIN AN EQUILATERAL TRIANGLE IS THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE SERVICING INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE APPLIANCE The equipment draws its nominal non operational power from the AC outlet with its POWER switch in the STANDBY position CAUTION Changes or modifications to this equipment not expressly approved by NAD Electronics for compliance could void the user s authority to operate this equipment CAUTION REGARDING PLACEMENT To maintain proper ventilation be sure to leave a space around the unit from the largest outer dim
25. ensions including projections equal to or greater than shown below Left and Right Panels 10 cm Rear Panel 10 cm Top Panel 50 cm IMPORTANT INFORMATION FOR UK CUSTOMERS DO NOT cut off the mains plug from this equipment If the plug fitted is not suitable for the power points in your home or the cable is too short to reach a power point then obtain an appropriate safety approved extension lead or consult your dealer If nonetheless the mains plug is cut off REMOVE THE FUSE and dispose of the PLUG immediately to avoid possible shock hazard by inadvertent connection to the mains supply If this product is not provided with a mains plug or one has to be fitted then follow the instructions given below IMPORTANT DO NOT make any connection to the larger terminal which is marked with the letter E or by the safety earth symbol or coloured GREEN or GREEN AND YELLOW The wires in the mains lead on this product are coloured in accordance with the following code BLUE NEUTRAL BROWN LIVE As these colours may not correspond with the coloured markings identifiying the terminals in your plug proceed as follows The BLUE wire must be connected to the terminal marked with the letter N or coloured BLACK The BROWN wire must be connected to the terminal marked with the letter L or coloured RED When replacing the fuse only a correctly rated and approved type should be used and be sure to re fit the fuse cover IF IN D
26. et by pressing TUNING PRESET UP or DOWN button o Z DOO 5 Press the MEMORY button briefly MEMORY display will blink at an interval of 1 second 222 006 6 While the MEMORY indicator is lit o OO O CO a Press the TUNING PRESET button to be desired selection then press the MEMORY button again or b Press the numeric keys on the remote control unit to input the preset number in which the data for the broadcast is to be stored DELETING A STORED PRESET You can empty a preset by deleting the stored information 1 Select the preset to be emptied 2 Press and hold Tune Preset mode button for more than 4 seconds The preset will then be deleted and __ appears on the preset number and DELETED scrolls on the display NOTE Empty presets will be skipped during preset tuning RECALLING FREQUENCIES Press the numeric key s corresponding to the channel number to tune directly to a broadcast BACK UP MEMORY FUNCTION This function conserves the already preset station memories and Most recent memory function even in the event of a cut off of power supply as when the plug is pulled out of the wall outlet 13 RDS RADIO DATA SYSTEM z o Q gt 20 7970 OOO o 00 OG mn mn 1 RDS is a broadcasting service which allows stations to send additional information along with the regular radio program signal RDS services can be received only in
27. having superior sound positioning HALL SURROUND When playing recordings of live music this mode provides a feeling similar to actually being in a concert hall When this mode is selected the normal program source is directed to the main speakers and a reverberated sound is directed to the surround speakers This mode is suited to program sources which contain a large amount of reverberation STEREO When playing movie or music with 5 1 channels through Dolby Digital or DTS selecting STEREO MODE will down mix the multi channel signal to 2 channel stereo VFL Display will show Dolby stereo icon or DTS stereo icon Manufactured under license from Dolby Laboratories Dolby Pro Logic and the double D Symbol are trademarks of Dolby Laboratories Confidential Unpublished Works 1992 1997 Dolby Laboratories Inc All rights reserved Manufactured under license from Digital Theater System Inc US Pat No 5 451 942 and other world wide patents issued and pending DTS DTS Digital Surround are trademarks of Digital Theater System Inc 1996 Digital Theater System Inc All Rights Reserved SPEAKER POSITIONING The installation positions of speakers differ according to the size and acoustics of the listening room While actually listening to a program source try various speaker positions to determine which layout provides the best surround effect e Front speakers Place to the front left and right of the listening positi
28. he DVD jacks VIDEO SIGNAL JACKS e Connect the TV monitor VIDEO IN jack to the MONITOR OUT jack e Connect the video deck VCR VIDEO OUT VIDEO jack to the IN VIDEO 1 jack Connect the video deck VCR VIDEO IN jacks to the OUT VIDEO 1 jack e Connect the LD player VIDEO OUTPUT jacks to the VIDEO 2 IN jack e Connect the DVD player or Decoder VIDEO OUTPUT jacks to the DVD IN jacks S VIDEO SIGNAL JACKS e Connect the TV monitor S VIDEO IN jack to the MONITOR OUT jack e Connect the video deck VCR S VIDEO OUT jack to the S VIDEO VIDEO1 IN jack Connect the video deck VCR S VIDEO IN jack to the S VIDEO VIDEO1 OUT jack e Connect the LD player S VIDEO OUTPUT jacks to the VIDEO2 IN jack e Connect the DVD or Decoder S VIDEO OUTPUT jacks to the S VIDEO DVD IN jack NOTES e The FUNCTION source selector for the S VIDEO inputs and VIDEO inputs work in conjunction with each other e This unit s S VIDEO IN OUT jacks and VIDEO IN OUT pin jacks have independent circuit structures so that video signals input from the S VIDEO jacks are only output from the S VIDEO jack outputs and video signals input from the VIDEO pin jacks are only output from the VIDEO pin jack outputs DOLBY DIGITAL AC 3 DTS PCM DIGITAL IN JACKS e If the DVD player or Decoder is provided with either a coaxial or optical digital output connect to respectively DVD Coaxial or Digital input e If a Digital music source such as MiniDisc or MP3 player
29. his position when using the yellow VIDEO MONITOR OUT jack e S VIDEO Set the switch to this position when using the 4 pin S VIDEO MONITOR OUT jack The on screen display will only appear when the video signal matches the type of signal selected with the selector switch AUTOMATIC OSD FUNCTIONS If the receiver is connected to a television with a video cable from the monitor out jacks the following functions when used will appear on screen automatically SLEEP Pressing the SLEEP button on the remote control brings up a display that allows you to select the amount of time from 90 to 0 minutes after which the system will shut itself off Once the display appears each time you press the SLEEP button reduces the time in ten minute increments At zero pressing the SLEEP button again starts the sequence over at 90 minutes Without input the display will disappear in 7 seconds VOLUME Pressing the MASTER VOLUME button on the remote control brings up a display that shows the receiver volume selected MASTER VOLUME HALAL HL II INPUT STATUS When you turn your receiver s power on or change its functions a display appears on your television screen showing the current status of the system including the type of video and audio input being monitored i VIDEO DVD the type of audio output AUDIO iDVD SURROUND DOLBY DIGITAL With this display on screen the type of input being monitored can be changed by pressing the
30. ical Example of Antenna Grounding as per National Electrical Code ANSI NFPA 70 a ANTENNA LEAD IN WIRE ANTENNA DISCHARGE UNIT ELECTRIC SERVICE EQUIPMENT GROUNDING CONDUCTORS e GROUND CLAMPS lt POWER SERVICE GROUNDING ELECTRODE SYSTEM 15 Lightning For added protection for this product during a lightning storm or when it is left unattended and unused for long periods of time unplug it from the wall outlet and disconnect the antenna or cable system This will prevent damage to the product due to lightning and power line surges 16 Power Lines An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits or where it can fall into such power lines or circuits When installing an outside antenna system extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal 17 Overloading Do not overload wall outlets extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock 18 Object and Liquid Entry Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock Never spill liquid of any kind on the product 19 Servicing Do not attempt to service this product yourself as opening or removing covers may expose you to da
31. is provided an optical digital output connect to AUX Digital input e When an optical connection is used for connection remove the caps protecting both ends of the optical cable and the connectors Remove the protective cap from the input socket DIGITAL OUT OPTICAL AND COAXIAL e Connect the coaxial or optical digital input on CD or MiniDisk Recorder to the coaxial respectively optical Digital output of the L75 NOTES Do not connect both the coaxial and optical Digital Outputs to the corresponding Digital inputs on the same recording device AUDIO OPERATIONS PI o Ce e 200 200 o 00 oO tT TI PHONES 10 p fe nm a DVD O O O WOOO TITLE O Y PAUSE STEP Oi o TAPE AUX SURR TEST D 00000 V CI0IO OOOO D O S OPEN CLOSE STOP O O ZOOM a 2 m 3 ECG fo a ba a 8 2 3 g O E O SLEEP MUTE PLAY lt lt SKIP SCAN D gt lt stow gt ANGLE O SUBTITLE L 75 System Remote PHONES SLEEP MUTE NOTES The following points apply throughout the Audio Operations sections unless otherwise noted To simplify explanations instructions refer to names of buttons and controls on the front panel making no mention of the use of remote control unit PRIVATE LISTENING For private listening insert the headphones 1 4 inch plug into the PHONE
32. ith the left right buttons located on either side of the ENTER button To get back to the MAIN MENU move the arrow to GO TO MAIN MENU and press ENTER OSD ON SCREEN DISPLAY 4 Entering DIGITAL INPUT see page 9 from the MAIN MENU brings up a menu that allows you to select the audio input you d like to monitor An asterisk appears opposite the input currently selected To change this selection move the arrow with the up down keys to the input you want and press ENTER The asterisk will now appear opposite the input you have selected For VIDEO1 VIDEO2 TAPE TUNER inputs ANALOG is the only selection available For AUX DVD inputs ANALOG or DIGITAL may be selected However you must have DIGITAL audio connections and a DIGITAL or DTS source to playback in DIGITAL i e DVD SATELLITE CD MD Otherwise no sound will be heard To get back to the MAIN MENU move the arrow with the up down keys to GO TO MAIN MENU and press ENTER 5 Entering SURROUND MODE see page 9 12 from the MAIN MENU brings up a menu that allows you to select the acoustical effects you d like to use The choices available to you will vary according to the function and type of input you are monitoring When you are monitoring VIDEO1 VIDEO2 TAPE or TUNER use the left right buttons to select one of these SURROUND MODE choices see page 12 PRO LOGIC 3 STEREO HALL STEREO When you are monitoring AUX or DVD use the left right buttons to select one of these
33. lect the channel you wish to adjust by pressing the volume up down key The volume level for the selected channel can be set by using the preset up down keys If arrow up down is pressed test tone will stop moving to the next channel and will increase or decrease the level of the current channel and the level in dB on the OSD will also change for that channel When no button is pressed for 5 sec test tone will continue to move to other channels To exit and save the settings press test press test button to cancel test mode and memorize all change OSD ON POSITION 1 When the SET UP button on the remote control is pressed a display appears which shows the current status of the input being monitored To change these settings press the ENTER button to bring up the MAIN MENU This is the only operation that can be performed on this menu which will disappear after 12 seconds without input 2 When MAIN MENU appears move the arrow cursor using the up down buttons located above and below the ENTER button to select the function you wish to change then press ENTER This menu will remain on the screen for 20 seconds without input If it disappears before you have made a selection press the SETUP button then the ENTER button to bring it back 3 Entering INPUT SELECTOR from the MAIN MENU brings up a display that allows you to select the video input that you d like to monitor Move the arrow using the up down buttons then change the input source w
34. nd Sound mode and the source material being played is recorded or broadcast in Dolby Digital DTS or Dolby Pro Logic surround sound Stereo broadcasts or recordings will produce some rear channel effects when played in a surround mode However mono sources will not produce any sound from the rear speakers No sound from the rear speakers No sound from the center speaker Remote Control Unit Remote control not working 24 SURROUND MODE button is set to STEREO Source being played is not recorded or broadcast in surround sound or stereo One or more rear speaker wires is not making good contact SURROUND mode button is not set to DTS DOLBY DIGITAL DOLBY PRO LOGIC or 3 STEREO The batteries are exhausted The remote control unit is too far from the receiver or out of the effective range Set the button to the desired surround mode position Use surround or stereo source Check all rear speaker wires for good connection Set the button to DTS DOLBY DIGITAL DOLBY PRO LOGIC or 3 STEREO Replace with new batteries Operate the remote control unit within the effective range SPECIFICATIONS AMPLIFIER SECTION Output Power Front Surround Output Power 0 5 THD 1 kHz 80 Total Harmonic Distortion Front Delay Time DOLBY DIGITAL DOLBY PRO LOGIC Audio Input Sensitivity Impedance LINE Output Level Impedance TAPE REC Frequency Response LINE Signal to Noise Ratio 1 Watt LINE Tone C
35. ngerous voltage or other hazards Refer all servicing to qualified service personnel 20 Damage Requiring Service Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions a When the power supply cord or plug is damaged b If liquid has been spilled or objects have fallen into the product c If the product has been exposed to rain or water d If the product does not operate normally by following the operating instructions Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation e If the product has been dropped or damaged in any way f when the product exhibits a distinct change in performance this indicates a need for service Replacement Parts When replacement parts are required be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards 22 Safety Check Upon completion of any service or repairs to this product ask the service technician to perform safety checks to determine that the product is in proper operating condition 23 Wall or Ceiling Mounting The product should be mounted to a wall or ceiling only as r
36. on Front speakers are required for all surround modes e Center speaker Place front and center This speaker stabilizes the sound image and helps recreate sound motion Be sure to connect a center speaker when using the 3 STEREO mode e Rear speakers Place to the direct left and right These speakers recreate sound motion and atmosphere Required for surround playback For best results do not install the rear speakers too far behind the listening position and install them above the level of the listener s ears It is also effective to direct the rear speakers towards a wall or ceiling to further disperse the sound e Subwoofer Reproduces powerful deep bass sounds Front Speakers Center Speaker Subwoster AE Speaker layout example when using SURROUND MODE Rear Speakers SPEAKER CONFIGURATION e Refer to OSD speaker configuration page 17 It is important to perform speaker configuration prior to using the decoder This allows the unit to sense the available speakers and automatically select decoding modes It is possible to receive multi channel surround sound without a center speaker but for best results with Dolby Pro Logic and Dolby Digital decoding at least 5 speakers Left Center Right Left Rear and Right Rear should be used CENTER SPEAKER MODE e LARGE Use this mode with a large center speaker The center channel s output is full range e SMALL Use this mode with a small center speaker Bass frequencie
37. ontrol DIGITAL AUDIO SECTION Sampling Frequency DIGITAL Input Level Impedance VIDEO SECTION Input Sensitivity Impedance Output Level Impedance FM TUNER SECTION Tuning Range AM Suppression Ratio Total Harmonic Distortion 1 kHz Frequency Responses Stereo Separation 1 kH NU Signal to Noise Ratio AM TUNER SECTION Tuning Range Usable Sensitivity Total Harmonic Distortion Signal to Noise Ratio GENERAL Power Requirements Power Consumption AC Outlets Dimensions W x H x D Weight net LINE means TAPE AUX VIDEO 1 VIDEO 2 DVD 60 watts RMS per channel minimum 40 40 Watt Front 40 Watt Center 40 40 Watt Rear 0 02 at 60 watts 1 kHz REAR 0 15 ms CENTER 0 5 ms REAR 15 30 ms 200 mV 47 k ohms 185 mV 2 2 k ohms 20 Hz 65 kHz 1 3 dB 70 dB IHF A BASS 10 dB at 100 Hz TREBLE 10 dB at 10 kHz 32 kHz 44 1 kHz 48 kHz COAXIAL 0 5 Vp p 75 ohms OPTICAL 15 dBm 21 dBm 1 0 Vp p 75 ohms 1 0 Vp p 75 ohms 87 5 MHz 108 0 MHz C 50 kHz steps AH 100 kHz steps C 45 dB AH 60 dB Mono 0 4 Stereo 0 5 30 Hz 15 kHz 1 1 5 dB C 40 dB AH 35 dB Mono 75 dB Stereo 70 dB C 522 kHz 1 620 kHz 9 kHz steps AH 530 kHz 1 720 kHz 10 kHz steps 55 dB m 0 8 at 85 dB m 45 dB at 85 dB m C 230V AC 50Hz AH 120V AC 60Hz C 1 2A AH 2 3A unswitched x 1 Total 100 W max 1A AH Version only 285 x 133 x 348 8 8kg
38. rce selector 2 Select the AM or FM by pressing the AM FM selector button 3 Press the MEMORY button for a while for more than 1 5 seconds a The start frequency will show in the display EUR87 5 MHz in FM 522 kHz in AM AMERICA 87 5 MHz in FM 530 kHz in AM b The frequency and display will automatically scan c The frequency shown in the display will rapidly change As each station is located a preset number will appear in the display indicating which preset MEMORY button has been assigned to the station located The scanning process will continue to operate in this fashion until 30 stations have been ound and entered into the preset memory or when there are no more stations to be found on the waveband chosen The memory indicator will extinguish and let you hear the last station to be memorized To listen to the memorized station select the band required and press the numeric keys 1 2 3 etc 4 The last memorized preset of each band will be displayed when Auto Memory is completed Check the programmed frequencies with TUNING PRESET UP DOWN button RADIO RECEPTION MANUAL MEMORY PRESETTING 1 Select the Tuner by turning the Source selector 2 3 46 2 Select the AM or FM by pressing the AM FM selector button 5 3 Press the Tune Preset MODE button to change to TUNING mode The PRESET CH indicator disappears from the display po 4 Select the frequency you want to pres
39. s below 90 Hz are output from the speaker selected by LFE Bass Out e NONE Use this mode if there is no center speaker The center channel signal will be divided between he main L and R speakers REAR SURROUND SPEAKER MODE e LARGE The mode to choose if a large speaker is used or if a subwoofer is connected in parallel The rear channels full range is output as is e SMALL The mode to choose if small speakers are used Frequencies of 90Hz and below are output to he speaker selected by LFE Bass Out FRONT SPEAKER MODE e LARGE The mode to choose if a large speaker are installed Front channels full range is output as is e SMALL The mode to choose compact speakers Frequencies of 90Hz and below are output to the speaker selected by LFE Bass Out SUBWOOFER OUTPUT e SUB ON The mode to choose if a subwoofer is used Low frequencies of 90Hz and below in the LFE channel and other selected channels are output to the subwoofer e SUB OFF The mode to choose if no subwoofer is used Low frequencies of 90Hz and below in the LFE channel and other selected channels are distributed between the front L and R speakers 17 SURROUND EFFECTS 18 DELAY TIME e Refer to OSD surround mode page 17 When you adjust the delay time in the DOLBY DIGITAL mode an additional 15 ms is automatically added to the surround channels in the DOLBY PRO LOGIC mode The current setting is shown on the display DELAY TIME SETTING Adjustable Range D
40. s up a menu that allows you to change the language of the on screen menus An asterisk appears opposite the language currently selected To change this selection move the arrow with the up down keys to the language you want and press ENTER The asterisk will now appear opposite the language you have selected REMOTE CONTROL UNIT USING THE REMOTE CONTROL UNIT NOTES e Ensure the slide switch near the bottom of the remote s fascia is in the RCVR position otherwise most buttons on the remote will not operate the receiver e Even if the remote control unit is operated within the effective range remote control operation may be impossible if there are any obstacles between the unit and the remote control e If the remote control unit is operated near other appliances which generate infrared rays or if other remote control devices using infrared rays are used near the unit it may operate incorrectly Conversely the other appliances may also operate incorrectly BATTERY INSTALLATION 1 Remove the battery compartment cover 2 Insert two AAA R03 UM 4 dry batteries Make sure that the batteries are inserted with their positive and negative poles positioned correctly 3 Close the cover until it clicks BATTERY REPLACEMENT If the distance required between the remote control unit and main unit decreases the batteries are exhausted In this case replace the batteries with new ones PRECAUTIONS CONCERNING BATTERIES e Be
41. sure to insert the batteries with correct positive and negative polarities e Use batteries of the same type Never use different types of batteries together e Rechargeable and non rechargeable batteries can be used Refer to the precautions on their labels e When the remote control unit is not to be used for a long time more than a month remove the batteries from the remote control unit to prevent them from leaking If they leak wipe away the liquid inside the battery compartment and replace the batteries with new ones e Do not heat or disassemble batteries and never dispose of old batteries by throwing them in a fire 23 TROUBLESHOOTING To determine any problem with your receiver always check the most obvious possible causes first If any problem still remains after your have checked the items below consult your nearest NAD dealer Problem Amplifier When listening to the music in stereo left right speakers sounds reversed Low hum or buzzer sound Sound is only heard from one channel Sound cuts off during listening to the music or no sound even though power is ON Low bass response Tuner An unusual hissing noise is heard when listening to he broadcast in stereo but not heard when istening monaurally oise is excessive in both stereo and monaural broadcasts Sound is distorted and or the volume level becomes low Excessive distortion in the sound of stereo broadcasts Surroun
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