sci.electronics.misc: Onkyo TX810 problem

Onkyo TX810 problem

Source: http://sci.techarchive.net/Archive/sci.electronics.misc/200502/0290.html
From: Michael Hoffman (mrh_at_panix.com) Date: 02/14/05
Date: Mon, 14 Feb 2005 22:53:08 +0000 (UTC)
Hi, My wife's 15year old ONKYO TX810 has developed what seems to be a power problem. It turns itself on and off every few seconds, eventually leading to a total shutdown. We took it into an electronics shop and they told us that the power supply needed some new solder joints. Not too expensive, so we said "sure". Then they came back and said it didn't fix the problem now we needed a new "Display Circuit Assembly". Onkyo says this part is no longer manufactured. Now the electronics store says there is nothing they can do, and want us to pay for the original repair. even though it didn't fix anything! Can anyone shed some light on this? Is the DCA an actual part? What does it have to do with power issues? And finally, do you think I should take the receiver to a different shop? (This shop is listed on ONKYOs site as an authorized service center, so I assumed they were honest. Were my assumtpions wrong?) Thanks, Michael Hoffman

Contents

Before using

AV Receiver

TX-DS484

Instruction Manual

Important Safeguards. 2 Precautions.. 3 Features.. 4 Supplied accessories.. 4 Before operating this unit.. 5

Preparation

Audio equipment connections.. 6 Video equipment connections.. 7 Connecting other devices.. 8 Connecting speakers.. 10 Positioning speakers.. 11 Connecting the power. 11 Making antenna connections.. 12

Operation

Speaker setup.. 14 Selecting a sound source. 17 To enjoy Surround mode or Stereo mode.. 20 Tuning in a radio station.. 23 Using preset radio stations. 24 Recording a source.. 25
Thank you for purchasing the Onkyo AV Receiver. Please read this manual thoroughly before making connections and turning on the power. Following the instructions in this manual will enable you to obtain optimum performance and listening enjoyment from your new AV Receiver. Please retain this manual for future reference.

Appendix

Troubleshooting guide.. 27 Specifications.. 28

Control guide

Control positions and names.. 29 Remote controller RC-427S. 30 Using the remote controller. 31

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

WARNING

RISK OF ELECTRIC SHOCK DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR

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.
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. 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.

Important Safeguards

1. Read Instructions All the safety and operating instructions should be read before the appliance is operated. 2. Retain Instructions The safety and operating instructions should be retained for future reference. 3. Heed Warnings All warnings on the appliance and in the operating instructions should be adhered to. 4. Follow Instructions All operating and use instructions should be followed. 5. Cleaning Unplug the appliance from the wall outlet before cleaning. The appliance should be cleaned only as recommended by the manufacturer. 6. Attachments Do not use attachments not recommended by the appliance manufacturer as they may cause hazards. 7. Water and Moisture Do not use the appliance 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 the appliance on an unstable cart, stand, tripod, bracket, or table. The appliance may fall, causing serious injury to a child or adult, and serious damage to the appliance. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer, or sold with the appliance. Any mounting of the appliance PORTABLE CART WARNING should follow the manufacturers instructions, and should use a mounting accessory recommended by the manufacturer. 9. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combinaS3125A tion to overturn. 10. Ventilation Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the appliance and to protect it from overheating, and these openings must not be blocked or covered. The openings should never be blocked by placing the appliance on a bed, sofa, rug, or other similar surface. The appliance should not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided. There should be free space of at least 20 cm (8 in.) and an opening behind the appliance. 11. Power Sources The appliance 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 appliance dealer or local power company. 12. Grounding or Polarization The appliance may be equipped with a polarized alternating current line plug (a plug having one blade wider than the other). This plug will t into the power outlet only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to t, 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 appliance. 14. Outdoor Antenna Grounding If an outside antenna or cable system is connected to the appliance, 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. See Figure 1. 15. Lightning For added protection for the appliance 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 appliance 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 re or electric shock. 18. Object and Liquid Entry Never push objects of any kind into the appliance through openings as they may touch dangerous voltage points or short-out parts that could result in a re or electric shock. Never spill liquid of any kind on the appliance. 19. Servicing Do not attempt to service the appliance yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualied service personnel. 20. Damage Requiring Service Unplug the appliance form the wall outlet and refer servicing to qualied 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 appliance, C. If the appliance has been exposed to rain or water, D. If the appliance 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 qualied technician to restore the appliance to its normal operation, E. If the appliance has been dropped or damaged in any way, and F. When the appliance exhibits a distinct change in performance this indicates a need for service.

21. Replacement Parts When replacement parts are required, be sure the service technician has used replacement parts specied by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in re, electric shock, or other hazards. 22. Safety Check Upon completion of any service or repairs to the appliance, ask the service technician to perform safety checks to determine that the appliance is in proper operation condition. 23. Wall or Ceiling Mounting The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer. 24. Heat The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including ampliers) that produce heat.
FIGURE 1: EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE, ANSI/NFPA 70
ANTENNA LEAD IN WIRE GROUND CLAMP ANTENNA DISCHARGE UNIT (NEC SECTION 810-20) ELECTRIC SERVICE EQUIPMENT
GROUNDING CONDUCTORS (NEC SECTION 810-21) GROUND CLAMPS
NEC NATIONAL ELECTRICAL CODE

Precautions

1. Warranty Claim You can nd the serial number on the rear panel of this unit. In case of warranty claim, please report this number. 2. Recording Copyright Recording of copyrighted material for other than personal use is illegal without permission of the copyright holder. 3. AC Fuse The fuse is located inside the chassis and is not user-serviceable. If power does not come on, contact your Onkyo authorized service station. 4. Care From time to time you should wipe the front and rear panels and the cabinet with a soft cloth. For heavier dirt, dampen a soft cloth in a weak solution of mild detergent and water, wring it out dry, and wipe off the dirt. Following this, dry immediately with a clean cloth. Do not use rough material, thinners, alcohol or other chemical solvents or cloths since these could damage the nish or remove the panel lettering. 5. Power

S2898A

POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250, PART H)

For U.S. model

Note to CATV system installer: This reminder is provided to call the CATV system installers attention to Article 820-40 of the NEC, ANSI/NFPA 70, which provides guidelines for proper grounding and, in particular, species that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical. FCC Information for User
The user changes or modications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. NOTE: 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 receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.

Remote control sensor

STANDBY indicator

approx. 5 m (16 feet)

Audio equipment connections
On each pair of input jacks, a red connector (marked R) corresponds to the right
channel, and a white connector (marked L) to the left channel. Please refer to the instruction manual of each component when making any connections. This receiver is designed for use with turntables using moving magnet cartridges. Insert the plugs and connectors securely. Remember that improper connection can result in noise, poor performance, or damage to the equipment.
Audio connection cable L (Left) L

R (Right)

Improper connection
Tape Deck INPUT (REC) OUTPUT (PLAY)

Insert completely

See page 7
AC 230V 50Hz SWITCHED TOTAL 100W MAX.
To wall outlet Ground OUTPUT Turntable OUTPUT (ANALOG) CD Player OUTPUT (COAXIAL) OUTPUT (DIGITAL)
Do not plug in the power cord until all connections have been made.

: signal flow

A DVD or other component equipped with a digital output can be connected to this receiver. The digital connection must be
used in conjunction with an analog connection, because if the analog cable is disconnected, the audio output from TAPE OUT and VIDEO 2 will not work.
Video equipment connections
On each pair of input jacks, a red connector (marked R) corresponds to the right
channel, and a white connector (marked L) to the left channel. A yellow connector (marked V) is used for video connection. Please refer to the instruction manual of each component when making any connections.
R (Right) Video connection cable V (Video)
Digital audio connections
This receiver has a powerful digital signal processor for use with DVD players, DAT decks, MD player, and CD players. The digital inputs, COAXIAL 1, 2 and OPTICAL can be assigned to individual input selector buttons, so when an input selector button is pressed, the assigned digital input is used instead of the corresponding analog input. (See page 19.)

CD Player

Cassette Tape Deck

Connecting speakers

If you want to use the surround effects, connect surround speakers. For the best results, connect a center speaker. Use FRONT SPEAKERS B terminals to connect a second pair of front speakers. This receiver is designed to produce optimum sound quality when speakers with impedances within the specied ranges are connected. Please check the following information and choose speakers with appropriate impedances for the connections. FRONT SPEAKERS: A or B: 6 ohms min./speaker SURROUND SPEAKERS: 6 ohms min./speaker CENTER SPEAKER: 6 ohms min. Connecting the speaker cable 1. Twist wire ends very tight.
NOTE: To prevent damage to circuitry, never short-circuit the positive (+) and negative () speaker wire.

2. Unscrew.

3. Insert the wire.

4. Screw.

Front Speakers A Active subwoofer

R ch. L ch.

Surround Speakers

Center Speaker

Front Speakers B
When you use only one speaker or wish to listen
to monaural (mono) sound, a single speaker should never be connected in parallel to both the right and left channel terminals simultaneously.

+ + R L

Positioning speakers
Speaker placement plays an important role in the reproduction of Surround sound. The placement of the speakers varies depending on the size of the room and the wall coverings used in the room. The illustration shows an example of a layout for standard speaker placement. Refer to this example when you position the speakers in order to experience the best of Surround sound.

Fro spe nt ak Righ er t

TV or Screen

nt Fro er ak spe ft Le

Subwoofer speaker

Center speaker

Standard speaker placement
For ideal Surround effects, all speakers should be installed. If a center speaker or subwoofer is not connected, the sound from the unused channel is properly distributed to the connected speakers in order to produce the best Surround sound possible. Front: The left, right, and center speakers should face the seated listener and be placed at ear level. The center speaker produces a richer sound image by enhancing the perception of the sounds source and movement. Surround: Place the left and right Surround speakers 1 meter (3 feet) above the listeners ear level and facing toward the sides of the room, making sure that the listener is within the speakers dispersion angle. These speakers produce the feel of a moving sound while creating the sensation of being in the middle of the action. Subwoofer: Install a subwoofer with a built-in power amplier for powerful bass sounds. The placement of the subwoofer does not affect the nal quality of the sound image too much, so you can install it with the room layout in mind. Refer to the speakers instruction manual for more details.

Surround speaker Left Listener

Surround speaker Right

Connecting the power
3. STANDBY/ON button 2. POWER switch STANDBY indicator Display

MASTER VOLUME

Before you plug in the receiver, conrm that all connections Turning on this receivers power may cause a momentary power
surge, which might interfere with other electrical equipment, such as computers. If this happens, use a wall outlet on a different circuit.

1. To wall

AV RECEIVER

have been made properly.

STANDBY/ON

PARAMETER SELECTOR

STANDBY
PARAMETER CONTROLLER PRESET TUNING
OFF A SPEAKERS B SURROUND MODE LATE NIGHT DIMMER MEMORY FM MODE

TREBLE

PHONES

MUL CH INPUT TI

VIDEO 1

outlet

3. POWER button

DIMMER

SUR MODE

MULTI-CH INPUT

INPUT SELECTOR TAPE TUNER PHONO
VIDEO-1 VIDEO-2 TUNER CD DVD

PRESET

CH SEL

TEST TONE

MUTING

VOLUME

REMOTE CONTROLLER

RC-427S

1. Plug the power cord into an AC wall outlet. NOTE: When you use the TX-DS484 for the rst time: When the TX-DS484 is shipped from the factory, the POWER switch is set to ON ( ). Therefore, when you plug in the power cord to the AC outlet, the Standby indicator lights up and the unit enters Standby mode as described in Step 2. 2. Press the POWER switch to set it to the ON( ) position to place the receiver in Standby mode. The STANDBY indicator will light up. Press the POWER switch again to set it to the OFF ( ) position to turn off the power to the receiver. 3. Press the STANDBY/ON button or POWER button on the remote controller to turn on the receiver. The display will light up and the STANDBY indicator will be turned off. If you press the STANDBY/ON button or POWER button on the remote controller again, the receiver returns to Standby mode.
You cannot use the remote controller if the POWER switch on
the receiver is set to OFF.
Making antenna connections
Connecting the antenna cable to the 75/300 ohm antenna adapter (Worldwide models)
Outdoor antenna 300 ohms ribbon wire Indoor antenna
Connecting the 300 ohm ribbon wire: Loosen the screws and wrap the wire around these screws. Then tighten the screws with a screwdriver. Connecting the coaxial cable: 1. With your ngernail or a small screwdriver, press the stoppers outward and remove the cover. 2. Remove the transformer wire A from slit B and insert it into slit C. 3. Prepare the coaxial cable as shown in the diagram. Connect the 75/300 ohm antenna adapter to the coaxial cable. 1 Insert the end of the cable. 2 Clamp it in place with pliers. 4. Re-install the cover.

POWER ON VOLUME ON / OFF

Surround Speaker LARGE / SMALL / NONE

Selecting a sound source

Follow the steps below to select a device to play the sound source.
2. Make sure that the SPEAKERS A indicator is lit on the display. If it is not lit, press the SPEAKERS A button. (Refer to the Speakers selector section on the page 19 for more details.)
DIMMER button Use this button to change the brightness of the display (normal or dim).
4. Adjust the volume to an appropriate level. These controls allow you to adjust the volume of the Front, Center, Surround speakers and subwoofer simultaneously. Turning the control clockwise increases the volume level. Turning the control counter-clockwise decreases the volume level.
1. Press the desired input selector button or MULTI CH INPUT button. The selected source name appears on the display. Refer to page 18 for more information on MULTI CH INPUT.
5. Use the bass, treble controls to adjust the tone. 3. Start playing the selected input source. (Refer to page 19 for more Follow the operating instructions for the details.) source device.
SLEEP button This button allows you to set the sleep timer. (Refer to page 19 for more details.)
ER W PO VD D ER O M R ON IM D TO H ET C P ES P LE R PR EE SE E SL T UN PU T IN PE ER TA N VD TU D -2 EO D

IS D C

4. VOLUME button (up/down) Use this button to adjust the volume level.

PE TA H C L SE

MUTING button This button mutes the sound temporarily. (Refer to page 19 for more details.)
Note: If you hear no sound from the speakers, check the following items: Make sure that all devices and speakers are connected correctly and securely. The sound is muted when the MUTING indicator ashes. Press the MUTING button on the remote controller to cancel the mute function. When you select a source that is connected to the DIGITAL INPUT jacks on the rear panel, you must select digital input (refer to page 19.). If you have selected MULTI CH INPUT, you need to adjust the level of each speaker (refer to page 18).

ST E TEON T

1. INPUT SELECTOR button Use this button to select a desired sound source.
POWER SLEEP DIMMER SUR MODE MULTI-CH INPUT DVD INPUT SELECTOR TAPE TUNER PHONO CD VIDEO-1 VIDEO-2 TUNER CD DVD PRESET DISC
When Multi channel input is selected as a source
Follow the steps below to adjust the level of each speaker if you have selected MULTI CH INPUT.

TAPE CH SEL TEST TONE

LEFT SUBWOOFER CENTER L-SUR RIGHT R-SUR
1. Press MULTI CH INPUT button on the remote controller. You cannot select any Surround mode. 2. Press the CH SEL button to select the desired speakers. 3. Use the LEVEL / button to change the volume level of the speakers. You can adjust the volume level of each speaker individually. Adjust the level while listening to the sound in the listening position. You can adjust the level of the front, center, and surround speakers in the range between 12dB and +12dB. You can adjust the subwoofer level in the range between 30dB and +12dB. Note If the speaker level is set to +1dB or higher, the maximum level indicated on the display will change if you raise the volume level.

DO W N

Using the Power On Volume function
This function automatically selects the volume level you set last time. Follow the steps below: 1. Use the VOLUME control to set the desired level. 2. Press the PARAMETER SELECTOR or button repeatedly to display the PWR ON VOL parameter. The current setting (ON or OFF) appears. 3. Press the PARAMETER CONTROLLER or button to select ON. Even if the parameter has already been set to ON, turn it OFF, then turn it ON again to enable the Power On Volume function. The original display appears and the setting is completed. When you turn on the power to the unit next time, it will use the volume level you set in step 1. Note: If the PWR ON VOL parameter is set to OFF, the Power On Volume function is disabled. In this case, when you turn on the power to the unit next time, it will use the volume level that was set when you turned off the power.
Switching between digital and analog inputs

DVD Player TX-DS484

COAXIAL 2 COAXIAL 1 OPTICAL
Either a digital or analog device can be connected to the digital connector. Follow the steps below to select digital or analog according to the type of the connected device. You can assign digital input to DVD, CD, VIDEO1-2, and TAPE. With the default setting, all inputs are assigned analog. Change this assignment, depending on the connected device or sound source. For example, follow the steps below to assign COAX 1 to the digital input jack (COAX 1) that connects a DVD device. 1. Press the DVD Input Selector button. The DVD input is selected and DVD appears on the display. 2. Press and hold the DVD button for about 2.5 seconds. The current DVD setting (ANALOG, OPT, COAX 1, or COAX 2) appears. 3. Press the DVD button again repeatedly to select COAX 1. Pressing the DVD button repeatedly will change the setting as follows:

ANALOG OPT COAX1 COAX2

Hold down more than 2.5 seconds
About ve seconds after COAX 1 is selected, the original display appears and the setting is completed. If you have selected digital input, you can also select the input signal format. Refer to Setting the input signal format on page 22. Warning: Do not play CD-ROM discs that contain computer data as they may damage the speakers when the sound is amplied by the receiver.
Speakers selector (SPEAKERS A, B)
SPEAKERS A: This button turns on or off the speakers connected to the FRONT SPEAKERS A, CENTER SPEAKER, SURROUND SPEAKERS and SUBWOOFER terminals. When the speakers are turned on, the SPEAKERS A indicator lights up. SPEAKERS B: This button turns on or off the speakers connected to the FRONT SPEAKERS B terminals. When the speakers are turned on, the SPEAKERS B indicator lights up. Note: You cannot use the A and B speakers simultaneously. You cannot select Surround sound when you are using SPEAKERS B. If you select SPEAKERS B while Surround sound is selected, Surround mode will be automatically canceled. Be sure to use SPEAKERS A to listen to the sound through MULTI CH INPUT or in any surround mode other than Stereo mode.

1. INPUT SELECTOR buttons Select the desired input source.
Before Using Surround Mode Surround Modes
The TX-DS484s surround sound enables you to enjoy the presence of a movie theater or concert hall in your room. Before using a Surround mode, make sure the Speaker Setup parameters have been set (refer to page 14). Once the parameters have been set, it is not necessary to set them again. The conguration of the speakers are very important for the surround sound. Refer to connecting speakers on page 10.
DOLBY DIGITAL Surround, DTS (Digital Theater System) Surround
This 5.1-channel digital surround format enables you to individually record and play ve full-range (20Hz20kHz) channels (left and right front, center, two surround channels) plus an LFE channel (Low Frequency Effect) for the low-range effect sound. It will create a realistic sound that could be heard in the theaters and concert halls. DOLBY DIGITAL: Select this option when you play a DVD video that has a mark. DTS: Select this option when you play a DVD player, laser disc, or CD that has a mark.

D I G I T A L

DOLBY PRO LOGIC
This surround format consists of four channels (left and right front, center, and monaural surround channels) and emphasizes the center channel. This format is very effective for panning music, conversation, and three-dimensional sound movement output from three front channels. It also simulates the atmosphere and surround effects of the sound reected from the side and rear walls of the theater. Select this option when you play a VHS, VHS Hi-Fi, laser disc, or DVD video that has a mark.

DOLBY SURROUND

P R O L O G I C

Notes on DTS

1. If you play a CD or LD that supports DTS when the ANALOG setting is selected on the TX-DS484, the DTS encoded signal will not be decoded and noise will be output. This noise could damage the amplier and speakers. Therefore, be sure to select DIGITAL and use the digital input jacks (OPTICAL/ COAXIAL) to connect the DTS source. (Refer to Switching between digital and analog inputs on page 19.) 2. If you play a CD or LD that supports DTS when the DIGITAL setting is selected, you may hear a noise for a short while until the DTS decoder recognizes the DTS encoded signal and starts operating. This is not a malfunction. 3. If you press the PAUSE or SKIP button on the player while playing a DTS source, a short noise may be heard. This is not a malfunction. 4. The DTS indicator on the TX-DS484 lights up while it plays the DTS source. When playback concludes and the DTS signal transmission stops, the TX-DS484 remains in DTS mode and the DTS indicator remains lit. This prevents noise when you operate the PAUSE or SKIP button on the player. Therefore, if the source switches from the DTS signal to the PCM signal immediately, the PCM signal may not be played. In this case, stop the playback of the source on the player for about three seconds, then resume playback. 5. Some CD players and LD players may be unable to play DTS sources correctly even if you connect the player to the TX-DS484 digitally. This is because the digital signal has been processed (such as the output level, sampling frequency, frequency response, etc.), and the TX-DS484 cannot recognize the signal as DTS data. Therefore, you may hear noise when you play a DTS source while processing the signal. 6. The Rec Out jacks of the TX-DS484 output analog audio. Do not record CDs or LDs that support DTS using these jacks. Otherwise, you will record a DTS encoded signal as noise.

Onkyos Surround modes The TX-DS484 offers the following special Onkyo Surround modes for the sources other than Dolby Digital and DTS sounds. ORCHESTRA: This mode is suitable for classics and opera music. The center channel is cut and the surround channels are emphasized to widen the stereo image. It will simulate a natural reverberation that can be created in a large hall. UNPLUGGED: This mode is suitable for acoustic instrumental sounds, vocals, and jazz music. By emphasizing the front stereo image, it will simulate the acoustics in front of the stage. 5CH STEREO: This mode is useful for background music. The front and surround channels will create a stereo image.

STEREO

Select this mode when you do not wish to use the surround mode. All input sound is output from the front speakers.
A system with L/R front and center speakers
The following modes are available: DOLBY 3STEREO The surround channel sound is output from the left and right front speakers. STEREO This is a normal stereo mode. Surround mode is cancelled.
A system with L/R front speakers
The following mode is available: STEREO This is a normal stereo mode.
Selecting a Surround mode

Dolby Pro Logic

Orchestra

Stereo

5ch Stereo

Unplugged

Playing the DOLBY DIGITAL source
Dolby Digital Dolby Digital (stereo)

Playing the DTS source

DTS DTS (stereo)
1. Press an Input Selector button to select the desired sound source. 2. Press the SURROUND MODE button repeatedly until the desired Surround mode name appears. The display changes in the order shown on left each time you press the button. If you are using the remote controller, press the SUR MODE button to select the desired Surround mode. If DOLBY PRO LOGIC is selected during playback of a DOLBY DIGITAL or DTS source, the Surround mode automatically changes to DOLBY DIGITAL or DTS and the DOLBY DIGITAL indicator or DTS indicator lights up on the display. If you have set the surround speaker parameter for the speaker setup (see page 14) to NONE, STEREO or 3 STEREO will be selected for Surround mode 3. Play the selected sound source.
You can adjust the level of each speaker if necessary. 1. Use the CH SEL button on the remote controller to select the target speaker. 2. Use the LEVEL or button to adjust the level. When you place the receiver in Standby mode, this level will be reset to the value set for the test tone. Also, if you press the TEST TONE button after adjusting the speaker level, it will use the level value set for the test tone.

Press the DVD button repeatedly to display the desired format. After ve seconds, the original display appears and the setting is completed. Note: You need to assign digital input to DVD to specify the input signal format. (Refer to Switching between digital and analog inputs on page 19 for more information.)
Tuning in a radio station

TUNING

MULTI CH INPUT

Manual tuning

1. Press the FM or AM button. 2. Use the TUNING / buttons to change the frequency. (up). the frequency increases. (down). the frequency decreases.
The frequency changes in 50 kHz steps in FM and 10 kHz (or In FM, if this button is held continuously for more than 0.5 sec9 kHz) in AM each time you press the TUNING / button. onds, the frequencies are scanned automatically (FM auto tuning mode). When a broadcast is received, scanning stops.
Receiving RDS (European model only)
When an RDS (Radio Data System) station broadcasting PS (Program Service Name) information is received, the RDS indicator lights up and the name of the station is displayed.
RDS reception is only available on the European model, and
only in areas where RDS broadcasts are available.
Listening to a stereo radio station (FM mode)

MEMORY FM MODE

When you tune in a stereo FM station, the FM STEREO indicator lights up if the signal is sufciently strong. If the signal is weak, it may be impossible to tune in to the desired station. In this case, tune in as follows. Press the FM MODE button. The FM MUTE indicator turns off. At this time, the station will be in mono and interstation noise will be heard. Select the station to which you want to listen.
Using preset radio stations
POWER SLEEP DIMMER SUR MODE MULTI-CH INPUT DVD

VIDEO-1 VIDEO-2

PRESET TUNER

TUNER PRESET

PRESET

MEMORY FM MODE CLEAR

Programming radio stations
1. Select the frequency that you want to store in the memory. (See Tuning in a radio station on page 23.) 2. Press the MEMORY button. The MEMORY indicator will light up for eight seconds. 3. Select the desired memory number using PRESET / button. 4. Press the MEMORY button.
Total of 30 stations can be stored in the memory.
Selecting a preset station

Remote controller

1. Select the tuner as the source by pressing the AM or FM input selector button on the main unit. 2. Enter the desired preset number using the PRESET and buttons. Remote controller operation 1. Select the tuner as the source by pressing the TUNER input selector button on the remote controller. 2. Press the PRESET ( or ) button.

15 Turntable VDP, VCR, DVD (VIDEO 1) 25 CD player TAPE
Refer to the video disc player, video camcorder, DVD or VCR
instruction manuals for additional information.

TAPE FM AM PHONO CD

Troubleshooting guide
If a problem occurs while you are using the remote controller, rst try to operate the front panel controls on the main unit to make sure that it is not due to a malfunction (or worn out batteries) in the remote controller. Trouble

No power.

Remedy

See page

Power cord is disconnected. There is external noise in the computer circuits of this unit. AC fuse blown. MUTING indicator is lit. Bad connections. Amplier protection circuitry has been activated. (PROTECT will be displayed.) Speaker cable is not corrected. Surround mode is set Unplugged, 5ch Stereo. to Orchestra,

Connect power cord. Turn the power button off and then on again or remove the AC plug from the outlet and then plug it again. Contact your Onkyo Service Center. Press the MUTING button on the remote controller to turn it off. Check connections, speaker leads, etc. Contact your Onkyo Service Center. Check the connection between the amplier and the speaker. If Surround mode is set to Orchestra, Unplugged, or 5ch Stereo, the center speaker outputs only the effect sound. Set the CENTER level to the appropriate volume. Set CENTER SPEAKER to LARGE or SMALL. Check outer conductor of input plugs. Check for proper ground connection. Adjust the placement of the cable to reduce hum. Move them farther apart. Replace. Clean. Turn treble control down. Connect the included AM loop antenna to the AM antenna terminals. Move the AM loop antenna to different position. Set up an outdoor AM antenna. Place the AM loop antenna as far as possible from the TV. Move unit away from TV set. Move antenna as far as possible from the uorescent lamp. Install an FM outdoor antenna as far as possible from the road. Change the position or direction of the outdoor antenna. Change to FM indoor antenna. Use antenna which has better directivity and select a point where the distortion is least. Install an outdoor FM antenna. Change the position or direction of the outdoor antenna. The memory contents are lost. Store all stations again. Insert batteries. Replace batteries. Set it to the playback source.

10 21

Power on but no sound.
No sound from the center speaker, or very minimal sound.
CENTER level is set to minimum. CENTER SPEAKER is set to NONE. Poor or no input ground. Poor or no phono motor ground. The placement of the audio connection cables on the rear panel is incorrect. Turntable together. and speakers are too close
Hum, low-frequency noise.

Howling when the volume is turned up. Rough or scratchy sound. High range is not clear. AM stations received. cannot be
Stylus of turntable pick-up is worn. Turntable stylus tip is dirty. Treble control too high. AM loop antenna is not attached. Noise from electrical apparatus such as uorescent lamp. Noise from TV set.

Buzzing noise on AM (particularly conspicuous at night or with weak stations). High-pitched noise or buzzing noise on AM. Crackling noise on AM, FM.
Noise caused by turning uorescent lamp on and off. Noise from automobile ignition.
TUNED and STEREO indicators light but sound is distorted and stereo separation is bad. TUNED and STEREO indicators icker and hiss is heard on FM. No station is recalled.
Station is too strong. Multiple reection of the radio waves because of tall buildings or mountains. Station is too weak. Stereo FM broadcasts cover only about half the distance of an ordinary broadcast. The power cord has been unplugged or the POWER switch has been turned off for a long time. No batteries in remote controller. Batteries have worn out. The input selector is not set properly.
Front panel controls function but remote controller does not. The sound of the playback source is not heard.
Also refer to the respective instruction manuals of the video disc player, video cassette recorder, TV monitor, etc., that compose your entertainment system.

Specications

AMPLIFIER SECTION
55 watts per channel min. RMS at 8 ohms, 2 channels driven from 20 Hz to 20 kHz with no more than 0.08% total harmonic distortion. 70 watts min. RMS at 6 ohms, 2 channels driven from 1 kHz with no more than 0.1% total harmonic distortion. Continuous Power output (DIN) 75 watts 5 at 6 ohms Maximum Power output (EIAJ) 100 watts 5 at 6 ohms Total Harmonic Distortion: 0.08% at rated power (Front) IM Distortion: 0.08% at rated power (Front) Damping Factor: 60 at 8 ohms (Front) Input Sensitivity and Impedance PHONO: 2.5 mV, 50 kohms LINE (CD, TAPE, DVD, VIDEO 1, 2): 200 mV, 50 kohms MULTICHANNEL INPUT (FRONT L/R, SURROUND L/R, CENTER): 200 mV, 50 kohms (SUBWOOFER): 36 mV, 50 kohms DIGITAL 2 (COAXIAL): 0.5 Vp-p, 75 ohms VIDEO IN (DVD, VIDEO 1, 2): 1 Vp-p, 75 ohms Output Level and Impedance Rec out (TAPE, VIDEO 2): 200 mV, 2.2 kohms Pre out (SUBWOOFER): 1 V, 2.2 kohms VIDEO OUT (VIDEO 2, MONITOR): 1 Vp-p, 75 ohms Phono Overload: 110 mV RMS at 1 kHz, 0.5% T.H.D. Frequency Response: 20 Hz to 100 kHz, +1/3 dB RIAA Deviation: 20 Hz to 20 kHz, 0.8 dB Tone Control Bass: 10 dB at 50 Hz Treble: 10 dB at 10 kHz Signal-to-Noise Ratio Phono: 80 dB (IHF A, 5 mV input) CD/Tape: 100 dB (IHF A) Continuous Average Power output (FTC) All channels: IF Rejection Ratio: Signal-to-Noise Ratio Mono: Stereo: Alternate Channel Attenuation: Selectivity: AM Suppression Ratio: Total Harmonic Distortion Mono: Stereo: Frequency Response: Stereo Separation: 90 dB 76 dB 70 dB 55 dB 50 dB (DIN) 50 dB 0.2% 0.3% 30 Hz 15 kHz, 1.0 dB 45 dB at 1 kHz 30 dB at 100 Hz 10 kHz

If a protective lm on the surface of the screen making it difcult to read the display, remove the lm. a. Speakers A/B indicators b. Sleep indicator c. Surround Mode indicators d. Audio Mute indicator e. FM Stereo indicator f. Tuned indicators g. Memory indicator h. FM Mute On/Off indicator i. RDS station received indicator (European model only) j. Multi function display (Frequency and Preset station/Input selector/Sleep time/ Volume level)
Remote controller RC-427S
POWER SLEEP DIMMER SUR MODE MULTI-CH INPUT
DVD INPUT SELECTOR TAPE TUNER PHONO CD
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
Power button (POWER) [11] Sleep button (SLEEP) [17, 19] Input selector buttons [17] CD operation buttons [31] Tape operation buttons [31] Level up/down button (LEVEL /) [14, 16, 18] DIMMER button (DIMMER) [17] Surround mode button (SUR MODE) [20, 21] Multi channel input button [18] Tuner operation buttons (TUNER) [24, 31] PRESET: Preset memory up/down buttons DVD operation buttons [31] Channel selector button (CH SEL) [14, 16, 18] Test tone button (TEST TONE) [14, 16] Volume buttons (VOLUME /) [17] Volume control for the Front, Center, Surround and Subwoofer speakers. Audio muting button (MUTING) [17, 19]

LEVEL MUTING VOLUME

REMOTE CONTROLLER RC-427S

Listening to the radio

1. Press the TUNER button. 2. Use the PRESET buttons to select the desired station.

Using an Onkyo tape deck

These buttons enable you to control ONKYO cassette tape decks that can be remotely controlled. (Refer to page 9.) 1. Press the TAPE button. 2. Press the transport buttons. Reverse play Forward play Recording/pause Stop Fast Rewind Fast Forward

Using an Onkyo CD player

POWER SLEEP DIMMER SUR MODE MULTI-CH INPUT DVD INPUT SELECTOR TAPE TUNER PHONO CD
These buttons enables you to control ONKYO CD players that can be remotely controlled. (Refer to page 9.) 1. Press the CD button. 2. Press the transport buttons. Play Pause Stop Down Up DISC Select a CD changer tray.
Using an Onkyo DVD player
These buttons enable you to control ONKYO DVD players that can be remotely controlled. (Refer to page 9.) 1. Press the DVD button. 2. Press the transport buttons. Play Stop Down Up Fast Rewind Fast Forward
TAPE CH SEL TEST TONE LEVEL MUTING VOLUME
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8111 Fax: 072-833-5222 http://www.onkyo-intl.com ONKYO U.S.A. CORPORATION 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. Tel: 201-785-2600 Fax: 201-785-2650 http://www.onkyousa.com ONKYO EUROPE ELECTRONICS GmbH Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.onkyo.net ONKYO CHINA LIMITED Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung, N.T., HONG KONG Tel: 852-2429-3118 Fax: 852-2428-9039 http://www.onkyochina.com