Techwood DDR94 User Manual

DDR 9

AV Digital Surround Receiver

OWNER’S MANUAL

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

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 product’s 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.

WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE

THIS APPLIANCE TO RAIN OR MOISTURE.

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.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION:

< Read all of these Instructions. < Save these Instructions for later use. < 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.

4) 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 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 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.

"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 practical."

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 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 dangerous 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.

21) 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 recommended 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.

Contents

TO THE USER

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 interference in a residential area. This device generates and uses radio frequency energy and if not installed and used in accordance with the instructions, it may cause interference to radio or TV reception. If this unit does cause interference with TV or radio reception you can try to correct the interference by one or more of the following measures:

a) Reorient or relocate the receiving antenna.

b) Increase the separation between the equipment and the receiver.

c) Plug the equipment into a different outlet so that it is not on the same circuit as the receiver. If necessary, consult the dealer or an experienced radio/TV technician for additional suggestions.

Before Use......................................................................................................................4

Connection .....................................................................................................................5

Remote Control Unit....................................................................................................10

Basic Operations.........................................................................................................11

Radio Reception ..........................................................................................................13

Video Operations.........................................................................................................16

Playing Video Sources.........................................................................................16

Tape Dubbing.........................................................................................................16

S.A.V.E System Function......................................................................................16

Available Surround Modes........................................................................................17

Speaker Configuration................................................................................................20

Delay Time....................................................................................................................21

Test Tone......................................................................................................................22

Troubleshooting...........................................................................................................23

Specifications..............................................................................................................24

CAUTION

Changes or modifications to this equipment not expressly approved by WELTON U.S.A for compliance could void the user's authority to operate this equipment.

The equipment draws nominal nonoperating power from the AC outlet with its POWER switch in the STANDBY position.

For CANADA

AC POWER CORD CONNECTION CAUTION:

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.

Before Use

Read this before operation Before Connection

Read this before operation

< Choose the installation location of your unit carefully.

Avoid placing it in direct sunlight or close to a source of heat. Also avoid locations subject to vibrations and excessive dust, heat, cold or moisture.

< The ventilation holes should not be covered. Make sure

there is enough space above and beside the amplifier/receiver (about 4 inches). Do not place a CD player or other equipment on top of the amplifier/receiver.

< Donot open the cabinet as this might result in damage to

the circuitry or electrical shock. If a foreign object should get into the set, contact your dealer.

< When removing the power plug from the wall outlet,

always pull directly on the plug, never yank the cord.

< Do not attempt to clean the unit with chemical solvents

as this might damage the finish. Use a clean, dry cloth.

< Keep this manual in a safe place for future reference.

Back-up Memory Function

This is the function which preserves the preset memory and most-recent memory functions. In the event of a power failure, or if the power cord of this unit is disconnected from the electric outlet, the back-up memory will preserve the preset memory and most-recent memory functions for as long as approximately 3 days.

If the power supply is interrupted for 3 days or longer, the memory settings will be erased.

When to Use RESET Switch

< When this system is subjected to an electrical shock. < When the power is irregular.

In these cases, try the following (in power on VCR/VIDEO 1 function.):

CAUTION

Turn off the power of all the equipment before making connections. Read instructions of each component you intend to use with this unit.

< Be sure to insert each plug securely. To prevent hum

and noise, do not bundle the connection cords with the power cord or speaker cord.

Speaker Connections

Caution:

To avoid damaging the speakers with a sudden high-level signal, be sure to switch the power off before connecting the speakers.

< Check the impedance of your speakers.

Connect speaker with an impedance of 8 ohms or more. The amplifier's red speaker terminals are the + (positive) terminals and the black terminals are the _ (negative) terminals.

< The + side of the speaker cable is marked to make it

distinguishable from the _ side of the cable. Connect this marked side to the red + terminal and the unmarked side to the black terminal.

< Prepare the speaker cords for connection by stripping

off approximately 10 mm or less (no more as this could cause a short-circuit) of the outer insulation. Twist the wires tightly together so that they are not straggly :

Press the TUNING MODE button for more than 3 seconds. Note:

If the TUNING MODE button is pressed for more than 3 seconds in VCR/VIDEO 1 function or Standby mode, all the memory will be erased.

How to connect

Press the lever, insert the stripped and twisted end (approx. 3/8") of the cord, then release the lever : Make sure it is fastened securely by pulling the cord lightly.

Connection

SPEAKERS, PRE OUT, AC OUTLETS

Power cord (AC)

Be sure to connect the power cord to an AC outlet which supplies the correct voltage.

Hold the power plug when plugging or unplugging the power cord.

PRE OUT ( SUB WOOFER ) jack

Use this jack to connect a powered sub-woofer or passive sub-woofer with a power amplifier (OPTIONAL) .

AC OUTLETS (SWITCHED)

These outlets are only active when the receiver is turned on.

Caution:

Make sure that the total power consumption of all equipment connected to the outlets on the receiver does not exceed 100 watts.

Connection

Speaker layout example when using SURROUND MODE or 3 STEREO

SURROUND

Positioning of the Speakers

The positioning of speakers differs 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.

Place the speakers connected to "L" to your left, and "R" to your right.

Front speakers

Use magnetic shielded speakers, if you are using it near your TV. Place the front speakers in front of the listening position, to the left and right of a TV. Front speakers are required for all surround modes.

(OPTIONAL)

VCR

3 STEREO

Center speaker

Use magnetic shielded speaker, if you are using it near your TV. Place a center speaker between the front speakers, on or below the TV. This speaker improves sonic imaging and depth of field. Be sure to connect a center speaker when using the 3 STEREO mode.

Rear speakers

Install these speakers above the level of the listener's ears, to the left and right.

Do not install the rear speakers too far behind the listening position. It might be effective to direct the rear speakers towards a wall or ceiling to further disperse the sound.

Subwoofer (Optional)

Reproduces powerful and deep bass sounds. Use a subwoofer with built-in amplifier. A Subwoofer is not required but may be added as an option

(OPTIONAL)

Connect the component with RCA to RCA cords. Make sure to connect :

white plug to white jack(L:left) red plug to red jack(R:right) yellow plug to yellow jack(VIDEO)

Connection

DVD PLAYER, CABLE BOX, SATELLITE RECEIVER (DSS), TELEVISION (MONITOR)

If you use both S-Video and RCA composite cables to connect different video components to the DDR94, you must also use both S-Video and RCA composite cables to connect the TV monitor to the DDR94.

For example, if you connect a DVD player to the DDR94 using S-Video cable and a VCR using an RCA to RCA composite cable, you must also connect the TV to the DDR94 using both types of cables. This requires an S-Video cable from the S-Video monitor out jack on the DDR94 to an S-Video input on the TV (ie. Video 1). In addition, you must use an RCA composite cable from the composite video monitor out jack on the DDR94 to an RCA composite video input on the TV but not the same input used for the S-Video cable(ie: Video 2). Using this type of dual cable video connection. you will need to switch the TV video input source from TV to Video 1 to Video 2 depending on the video source being played-TV, DVD or VCR.

Audio connections:

Some video components are equipped with special digital audio outputs (ie: DVD players). If your video component is equipped with a digital audio output, it is recommended that you connect to the DDR94 using a digital cable. Digital audio cables are required to use the DTS and Dolby Digital surround sound modes. If you do not use digital connections, the DDR94 will only operate in Dolby Pro Logic, Dolby 3 Stereo, Theater, Hall, Stadium

When connecting video components such as DVD players, cable boxes, satellite receivers and televisions, you can use different types of cables depending on how the video component is equipped.

Video connections:

If the video component is equipped with S-VIDEO jacks, it is recommended that it be connected to the DDR94 or directly to the television monitor using an S-VIDEO cable. S-Video cables provide better picture clarity and resolution. If the video component is not equipped with an S-VIDEO jack, use a conventional RCA to RCA composite cable to connect to the DDR94 or directly to the television.

and Disco surround modes. There are two types of digital cables - coaxial (75 ohm) and

optical. The DDR94 is equipped with both types of digital inputs. These inputs are labeled DIGITAL/DTS/PCM on the rearof the unit. Connect the video component outputs toany one of the three digital inputs on the DDR94.

If the video component isnot equipped with a digital output, use a dual RCA to RCA composite audio cable to connect to the DDR94. Make sure to connect:

White plug to white jack ( L : left ) Red plug to red jack ( R : right )

The above illustration shows how to connect video components to the DDR94.

Note:

When connection more than one video component to the DDR94 (ie: VCR and DVD player) it is easier to use either all S-Video cables or all RCA to RCA composite cables. This allows both video signals (DVD and VCR) to be sent through the DDR94 to the TV monitor using just one video input on the TV (S-Video or RCA). Regardless of the video component being played DVD or VCR, the picture will always appear on the same video input of the monitor.

Note:

When an optical cable is used, remove the protection caps from the component and DDR94 before attempting to insert the optical cable. If not using an optical cable or if the cable is removed, always re-install the protection caps to prevent dirt and dust from entering the inputs. If using a coaxial digital cable, leave the protection caps in both the video component and DDR94.

Connection

CD, TAPE Jacks

Connect the component with RCA to RCA cords. Make sure to connect :

white plug to white jack(L:left) red plug to red jack(R:right)

DIGITAL IN/OUT terminalsCD, TAPE jacks

If the CD player or tape player has digital outputs, connect the component with coaxial cables or optical cables.

DIGITAL IN to DIGITAL OUT(CD, etc.) DIGITAL OUT to DIGITAL IN( MD, etc.)

< Connect to any one of the DIGITAL IN terminals. < When using DIGITAL OPTICAL IN terminals, remove the

caps from the terminals. When you do not use them, leave the caps in place.

< To record digitally, connect the source(CD player, etc.)

to DIGITAL IN and the recorder(MD, etc.) to DIGITAL OUT.

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