Techwood STR84 User Manual

STR-8

4

260 WATT STEREO 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 thepresence 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

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.

MOISTURE.

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 -Donot 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 calbe 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 lead­in 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 them building, as close to the
point of cable entry as practical.

Example of Antenna Grounding as per
National Electrical Code, ANSI/NFPA 70

GROUND
CLAMP

ELECTRIC
SERVICE
EQUIPMENT

NEC-NATIONAL ELECTRICAL CODE

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

ANTENNA
LEAD IN
WIRE

ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)

GROUNDING CONDUCTORS
(NEC SECTION 810-21)

GROUND CLAMPS

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 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 indi-

cates 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.

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CONTENTS

IMPORTANT SAFETY INSTRUCTIONS.........................................................................................................................................2

PRECAUTIONS ...............................................................................................................................................................................4

Read This Before Operating........................................................................................................................................................4

CONNECTIONS...............................................................................................................................................................................5

System Connections....................................................................................................................................................................5

Antenna Connections...................................................................................................................................................................6

FM Antenna ............................................................................................................................................................................6

AM (MW) Antenna ..................................................................................................................................................................6

Speaker Connections ..................................................................................................................................................................7

Power Cord .................................................................................................................................................................................7

AC OUTLETS ..............................................................................................................................................................................7

VIDEO 3 INPUT Jacks.................................................................................................................................................................7

CONTROLS AND INDICATORS.....................................................................................................................................................8

Front Panel ..................................................................................................................................................................................8

Display.......................................................................................................................................................................................10

REMOTE CONTROL UNIT............................................................................................................................................................11

Using the Remote Control Unit..................................................................................................................................................11

Battery Installation .....................................................................................................................................................................11

Remote Control Unit ..................................................................................................................................................................12

AUDIO OPERATIONS...................................................................................................................................................................13

Back-up memory function..........................................................................................................................................................13

Sleep Timer Oepration...............................................................................................................................................................13

When to use reset switch...........................................................................................................................................................13

Basic Operations........................................................................................................................................................................14

Audio Adjustments.....................................................................................................................................................................14

Radio Reception ........................................................................................................................................................................15

Auto Tuning...........................................................................................................................................................................15

Manual Tuning.......................................................................................................................................................................15

Direct Tuning with Remote Control .......................................................................................................................................16

Preset Tuning.............................................................................................................................................................................17

Automatic Memory Presetting ...............................................................................................................................................17

Manual Memory Presetting ...................................................................................................................................................17

Listening to Records and Compact Discs..................................................................................................................................18

Playing Tapes............................................................................................................................................................................18

Recording a Source...................................................................................................................................................................18

VIDEO OPERATIONS....................................................................................................................................................................19

Playing Video sources ...............................................................................................................................................................19

Recording with a video deck......................................................................................................................................................19

Tape Dubbing (from VIDEO 2 to VIDEO 1)...........................................................................................................................19

Video Editing Function ..........................................................................................................................................................19

TROUBLESHOOTING...................................................................................................................................................................20

SPECIFICATIONS .........................................................................................................................................................................21

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PRECAUTIONS

Read This Before Operating

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 at least 20 cm (8 inches) of space above and at
least 5 cm (2 inches) of space beside the
amplifier/receiver. Do not place a CD player or other
equipment on top of the amplifier/receiver.
Do not 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 refernce.

For U.S.A

TO THE USER
This equipment has been tested and found to
comply with the limits for a A/V receiver, 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.

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 non-operating power
from the AC outlet with its POWER switch in the
STANDBY position.

For CANADA AND U.S.A.

AC POWER CORD CONNECTION
CAUTION :

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

ATTENTION

Pour éviter les chocs électriques, Introduire la lame la
plus large de la fiche dans la borne correspondante de
la prise et pousser jusqu’au fond.

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CONNECTIONS

System Connections

CAUTION : 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.

Refer to “Antenna Connections” on pages 6~7.

TV Monitor

Turntable

Tape Deck

LINE OUT

LINE IN

: Audio signal

: Video signal

CD Player

AC Outlets:
Two switched, Total 100W.

VIDEO OUT

AUDIO OUT

VIDEO 1

VIDEO IN

AUDIO OUT

VIDEO OUT

DVD/VIDEO 3

AUDIO IN

REAR SURROUND

SPEAKERS

Audio connection cords

MAIN SPEAKERS

5

Antenna Connections

AM (MW) Antenna

FM Antenna

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 antenna termi­nals , as shown. For details of how to connect the antenna
wires to the terminals, see the illustration.
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.

“T”-type FM Antenna
(300 )(provided)

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.
A 75-ohm antenna uses a coaxial cable and should be con­nected as follows: first strip the covering of the cable, then
twist the wire shielding so the inner core and shielding can
be connected as shown.

AM Indoor Loop Antenna

A 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. Use an insulated
wire more than 15 ft (5 m) long, strip one end, and con­nect this to the terminal as shown. The antenna wire
should be strung outdoors or indoors near a window.

For better reception, connect the GND terminal to a reli-

able ground.

Note : Even when using an outdoor AM antenna, do not dis-

connect the AM loop antenna.

AM Loop Antenna
(provided)

U.S.A/Canade/
General Export
Model

Outdoor FM Antenna (75 )

How to connect antenna

Press the lever, insert the
stripped and twisted end of the
wire, then release the lever so
that the wire is held securely.

AM Outdoor
Antenna

6

Speaker Connections

Power Cord

Caution :

To avoid damaging the speakers, be sure the power is off
before connecting the speakers.

Connect each speaker to the corresponding speaker
terminal.

Notes :

When using the rear speakers, be sure to connect them
to both channels (L and R). If a speaker is

connected to only one channel, no sound will be heard.

Use speakers with a nominal impedance of 8 ohms or
more.

How to connect the speaker cords

L

R

Be sure to connect the power cord to an AC outlet which
supplies the correct 120 voltage.

AC OUTLETS

SWITCHED :

These outlets switch on and off when you turn the amplifier
on and off.

Caution :

The total power consumption of the components connected
to the AC OUTLETS must not exceed 100W.

VIDEO 3 INPUT Jacks

Video camera or other video components may be connected
to the video 3 input jacks on the front panel.

Press the lever, insert the stripped and twisted end
(approx. 10 mm) of the cord, then release the lever so
that the cord is held securely.

IMPORTANT : One of the MAIN/SURROUND speaker

selectors on the front panel must be
turned on or no sound will be heard.

AUDIO
OUT

VIDEO OUT

Video Camera Recorder, etc.

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