Teac GF-680 Solid State Amp Receiver User Manual

Teac GF-680 Solid State Amp Receiver

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install by the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers)
   that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades, with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point
    where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when
    unused for long periods.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as the power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
    • Do not expose this apparatus to drips or splashes.
    • Do not place any objects filled with liquids, such as vases, on the apparatus.
    • Do not install this apparatus in a confined space such as a bookcase or similar unit.
    • The apparatus draws nominal non-operating power from the AC outlet with its POWER switch in the off position.

Before Use

Read this before the operation

• As the unit may become warm during operation, always leave sufficient space around the unit for ventilation.
• The voltage supplied to the unit should match the voltage as printed on the rear panel. If you are in any doubt regarding this matter, consult an electrician.
• 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.
• Do not place the unit on an amplifier/receiver or any other electronic device that generates heat.
• Do not open the sealed 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 or service agency.
• When removing the power plug from the wall outlet, always pull directly on the plug, never yank the cord.
• To keep the laser pickup clean, do not touch it, and always close the disc tray.
• 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.

DO NOT MOVE THE UNIT DURING PLAYBACK

During playback, the disc rotates at high speed. Do NOT lift or move the unit during playback. Doing so may damage the disc
or the record.

WHEN MOVING THIS UNIT

When changing places of installation or packing the unit for moving, be sure to remove the disc and the record. Moving this unit with the disc or the record loaded may result in damage to this unit. If the unit is to be packed and moved a large distance, it is also advisable to tighten the turntable transport locking screw. See page 12 for instructions.

Beware of condensation

When the unit (or a disc) is moved from a cold to a warm place, or used after a sudden temperature change, there is a danger of condensation; vapor in the air could condense on the internal mechanism, making correct operation erratic or impossible. To prevent this, or if this occurs, leave the unit for one or two hours with the power turned on. The unit will stabilize at the temperature of its surroundings.

Maintenance

Always keep the turntable clean. If the surface of the unit gets dirty, wipe with a soft cloth or use diluted mild liquid soap. Be sure to remove any excess completely. Do not use thinner, benzine or alcohol as they may damage the surface of the unit. Allow the surface of the unit to dry completely before using.

Discs

Discs that can be played on this unit:

• Conventional audio CDs bearing the CD-DA logo on the label:
• Properly finalized CD-R discs

Note:

• • Depending on the quality of the disc and/or the condition of the recording, some CD-R discs may not be playable.
  • CD-RW discs cannot be played on this unit.
  • Copy-protected discs and other discs that do not conform to the CD standard may not play back correctly in this player. If you use such discs in this unit, TEAC Corporation and its subsidiaries cannot be responsible for any consequences or guarantee the quality of reproduction. If you experience problems with such non-standard discs, you should contact the producers of the disc.
• Always place the disc on the disc tray with the label side uppermost. (Compact discs can be played or recorded only on one side.)
• To remove a disc from its storage case, press down on the center of the case and lift the disc out, holding it carefully by the edges.
• Should the disc become dirty, wipe the surface radially with a soft, dry cloth.
• Never use such chemicals as record sprays, antistatic sprays or fluid, benzine or thinner to clean the discs. Such chemicals will do irreparable damage to the disc’s plastic surface.
• Discs should be returned to their cases after use to avoid dust and scratches that could cause the laser pickup to “skip.”
• Do not expose discs to direct sunlight or high humidity and temperature for extended periods. Long exposure to high temperatures will warp the disc.
• CD-R discs are more sensitive to the effects of heat and ultraviolet rays than ordinary CDs. It is important that they are not stored in a location where direct sunlight will fall on them, and which is away from sources of heat such as radiators or heat-generating electrical devices.
• Printable CD-R discs aren’t recommended, as the label side might be sticky and damage the unit.
• Do not stick papers or protective sheets on the discs and do not use any protective coating spray.
• Use a soft oil-based felt-tipped pen to write the information on the label side. Never use a ball-point or hard-tipped pen, as this may cause damage to the recorded side.
• Never use a stabilizer. Using commercially available CD stabilizers with this unit will damage the mechanisms and cause them to malfunction.
• Do not use irregular shape CDs (octagonal, heart-shaped, etc.). CDs of this sort can damage the unit.
• If you are in any doubt as to the care and handling of a CD-R disc, read the precautions supplied with the disc or contact the disc manufacturer directly.

Cassette Tape

Tape Selection

Metal and chrome (cobalt) tapes have identification holes.

• This unit can play normal (Type 1) tape only.

Tape Handling

Use your finger or a pencil to turn the cassette’s hub and take up any slack tape.

• Avoid touching the tape. Fingerprints attract dust and dirt.

Do not store tapes in the following places:

• On top of heaters, exposed to direct sunlight or in any other places with high temperatures.
• Near speakers, on TV sets or amplifiers or where they would be exposed to strong magnetic fields.
• Where humidity is high and in dirty, dusty places.
• Avoid dropping or subjecting cassettes to excessive shocks.
• As C-120 tapes are physically weak and could become entangled in the transport mechanism, do not use them.

Maintenance

The heads and tape path should be cleaned and demagnetized periodically.

Cleaning Tape Path

• Apply head cleaning fluid to a cotton swab or soft cloth, and lightly rub the heads A, capstan B, and all metal parts in the tape path.
• Also, clean the pinch roller C using rubber cleaning fluid.

Demagnetizing Heads

Be sure that the power is off, then demagnetize the heads using a demagnetizer. For details of its use, read its instructions.

Handling Records

• Do not touch grooves. Handle records by the edges or the label only, with clean hands. Skin oils from even clean hands can leave a residue on the record surface that will gradually deteriorate the quality of your record.
• Keep your records away from dust. Keep them in a cool, dry place.
• To avoid dust and scratches, keep records in their sleeves and jackets when not in use.
• Store records upright on their edges. Records stored horizontally will eventually bend and warp.
• Do not expose records to direct sunlight or high humidity, and temperature. Long exposure to high temperatures will warp the record.
• Do not store your records in the trunk of your car. The temperatures in a closed trunk can ruin your collection.
• Store records in an area with stable temperature and humidity.
• Should the record become dirty, gently wipe the surface in a circular motion, using a soft anti-static cloth. Many commercial record cleaning systems are available from many retailers or online. TEAC does not endorse any specific product, but depending on the condition of your record collection, it may be advisable to look into one of these systems. Clean records protect your stylus from undue wear.

How to Replace the Stylus

The stylus should last about 50 hours under normal use. However, it is recommended to replace the stylus as soon as you notice a change in sound quality. Prolonged use of a worn-out stylus may damage the record. Wear and tear will accelerate when playing 78 RPM records. The higher speed of 78 RPM records wears the stylus more quickly.

Caution:

• Do not remove or bend the stylus.
• To avoid injury, do not touch the needle.
• Turn off the power of the unit before you replace the stylus.
• Keep out of reach of children.
• Handle with care, as the stylus is delicate. Use of a bent or broken stylus may damage the record and cause malfunction.
• Do not expose the stylus to extreme heat.
• Contact a qualified repair company if you experience difficulty in changing the stylus.

Removing the old stylus

1. Set a screwdriver at the tip of the stylus and push down in the direction “A”.
2. Pull out in the direction “B”.

Installing a new stylus

1. Hold the tip of the stylus and insert the other edge in the direction “C”.
2. Push up to the direction “D” until it locks at the tip.

The replacement stylus for this GF-600 is a STL-103. Please contact TEAC Parts at (323) 726-0303, extension 840 to order. Or call our automated Service Agency Locator at: (800) 447-TEAC for the closest authorized repair company that can replace the stylus for you.

Connection

CAUTION
Turn off the power of all the equipment before making connections. Read the 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.
• A. FM antenna
  While in FM mode, tune in an FM station and extend the lead to find the best position for reception. This antenna may need to be repositioned if you move your unit to a new location.
• B. AUX
  You can connect a DVD player, VCR, etc. to this unit. Connect the component with RCA pin cords. Make sure to connect the white plug to the white jacks (Left) and the red plug to the red jacks (Right).
• C. AC Power Cord
  Plug this AC power cord into an AC wall socket.
• D. RESET
  In the following cases, function buttons may not work properly.
  • When the system is damaged by an electrical shock.
  • When the power is irregular or has electrical noise. In these cases, press the RESET switch once or twice with a pencil or a ball-point pen lightly.

Remote Control Unit

The provided Remote Control Unit allows the unit to be operated from a distance. When operating the remote control unit, point it towards the REMOTE SENSOR on the front panel of the unit.

• 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.
• If the remote control unit is operated near other products that generate infrared rays, or if other remote control devices using infrared rays are used near the unit, it may operate incorrectly. Conversely, the other products may 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.

Battery Replacement

If the distance required between the remote control unit and the main unit decreases, the batteries are exhausted. In this case, replace the batteries with new ones.

Precautions concerning batteries

• Be sure to insert the batteries with the correct positive “+“ and negative “_“ polarities.
• Use batteries of the same type. Never use different types of batteries together.
• Rechargeable and non-rechargeable batteries can be used. Refer to the precautions on their labels.
• 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.
• Do not heat or disassemble batteries, and never dispose of old batteries by throwing them in a fire.

Names of Each Control (Front Panel/Remote Control Unit)

• A. STANDBY indicator
  This indicator lights when the unit is in the standby mode. When the units turned on, the light goes off.
• B. POWER
  Press this switch to turn the unit on or off (standby).
• C. TIMER
  Use this button to set the timer.
• D. BBS
  Use this button to boost bass.
• E. DUB SPEED
  Use this button to select the dubbing speed.
• F. REMOTE SENSOR
  When operating the remote control unit, point it towards the REMOTE SENSOR.
• G. PHONES
  For private listening, insert the headphones plug into this jack, and adjust the volume by turning the VOLUME knob.
• H. Disc tray
• I. DISC SKIP
  Use this button to rotate the carousel.
• J. OPEN/CLOSE
  Use this button to open and close the disc tray.
• K. TAPE 1 operation buttons
• L. TAPE 2 operation buttons
  • PLAY:
    Use this button to start playback of the tape.
  • SEARCH:
    Use these buttons to fast-forward or rewind the tape.
  • STOP/EJECT:
    Use this button to stop playback. In the stop mode, use this button to open the cassette holder.
  • PAUSE:
    Use this button to pause playback.
  • RECORD :
    Use this button to start recording.
• M. Cassette holder
• N. SHUFFLE/PRESET
  In CD mode, use this button for shuffle playback. In TUNER mode, use this button to select preset stations.
• O. REPEAT/PRESET
  In CD mode, use this button for repeat playback. In TUNER mode, use this button to select preset stations.
• P. STOP
  Use this button to stop playback of CD.
• Q. PLAY
  Use this button to start or pause playback of CD.
• R. DISC 1, 2, 3
  Use these buttons to select a disc.
• S. CD SEARCH/TUNING/TIME (.m/,/)
  In CD mode, momentarily turn this knob (or press the SKIP button of the remote control unit) to skip tracks. Hold up or down the knob (or press and hold the SKIP button) to search for a part of a track. In TUNER mode, momentarily turn this knob to tune in stations.
• T. PROGRAM/CLOCK ADJ
  In CD mode, use this button to program tracks. In TUNER mode, use this button to store preset channels into memory.
  This button is also used for clock adjustment.
• U. FUNCTION (TAPE, AUX/PHONO, CD, TUNER)
  Use these buttons to select a source. In TUNER mode, press the TUNER (BAND) button to select FM or AM.
• V. Display
• W. INTRO/FM MODE
  In CD mode, use this button to start the intro check. In FM TUNER mode, use this button to select stereo or monaural.
• X. VOLUME
  Turn this knob (or press the VOLUME buttons of the remote control unit) to adjust the volume.
• Y. MUTING
  Use this button to mute the sound.
• Z. DISPLAY
  Use this button to change the display.
• a. EEPS
  Use this button to select a preset equalizer.
• b. Speakers (stereo)

Note:
To simplify explanations, instructions refer to the names of buttons and controls on the front panel, making no mention of the use of the remote control unit.

Troubleshooting

If you have problems with your system, look through this chart and see if you can solve the problem yourself before calling your dealer or TEAC service center.

No power

• Check the connection to the AC power supply. Check and
  make sure the AC source is not a switched outlet and that, if
  it is, the switch is turned on. Make sure there is power to the
  AC outlet by plugging another item such as a lamp or fan.

No sound from the speakers.

• Select the source by pressing the corresponding button or the FUNCTION button.
• Adjust the volume.
• Pull out the headphone’s plug from the phone’s jack.
• If the muting indicator is lit, press the MUTING button. (When “CD” is selected, press the PLAY button to start playback.)

The sound is noisy.

• The unit is too close to a TV or similar appliances. Install the unit apart from them, or turn them off.

The remote control doesn’t work.

• Press the POWER switch to turn the unit on.
• If the batteries are dead, change the batteries.
• Use remote control unit within the range (5m /15ft) and point at the front panel.
• Clear obstacles between the remote control unit and the main unit.
• If a strong light is near the unit, turn it off.

CD Player

Cannot play.

• Load a disc with the playback side facing down.
• If the disc is dirty, clean the surface of the disc.
• A blank disc has been loaded. Load a prerecorded disc.
• This unit cannot play CD-RW discs.
• Depending on the disc, etc. it may not be possible to play back CD-R discs. Try again with another disc.
• You cannot play back unfinalized CD-R discs. Finalize such a disc in a CD recorder and try again.

Sound skips.

• Place the unit on a stable surface to avoid vibration and shock.
• If the disc is dirty, clean the surface of the disc.
• Don’t use scratched, damaged, or warped discs.

The SHUFFLE button doesn’t work.

• Shuffle playback won’t work until you clear the programmed contents. If you want to clear the programmed contents, press the PROGRAM button and the STOP button.

Specifications

AMPLIFIER section

• Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15W+15W
• Input Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220mV
• Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . 50 to 20,000 Hz

TUNER Section (FM)

• Frequency Range . . . . . . . . . . . . . . . . . . . . . . 87.50 to 108.00 MHz
• Sensitivity (S/N30dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20dBμV
• TUNER Section (AM)
• Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . 530 to 1710 kHz
• Sensitivity (S/N20dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . 60dBμV/m

CD PLAYER Section

• Frequency Response. . . . . . . . . . . . . . . . . . 20 to 20,000 Hz (±1dB)
• Signal-to-Noise Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55dB
• Wow and Flutter . . . . . . . . . . . . . . . . . . . . . . . . . . . Unmeasurable

CASSETTE DECK Section

• Track System. . . . . . . . . . . . . . . . . . . . . . 4 track, 2 channel stereo
• Tape Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8cm/sec
• Wow and Flutter . . . . . . . . . . . . . . . . . . . . . . . . . . 0.35% ( WRMS )
• Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . 100 to 8,000 Hz
• Signal-to-Noise Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35dB

RECORD PLAYER Section

• Motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC servo motor
• Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Belt Drive
• Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-1/3 rpm, 45 rpm, 78 rpm
• Wow and Flutter . . . . . . . . . . . . . . . . . . . . less than 2.5%(WRMS)
• S/N ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . More than 50dB
• Cartridge type . . . . . . . . . . . . . . . . . . . . Ceramic Stereo Cartridge
• Stylus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STL-103

SPEAKER SYSTEM Section

• Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-way bass reflex
• Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ohms

GENERAL

• Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 120V, 60Hz
• Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 W
• Dimension ( W x H x D ) . . . . . . . . . . 15-5/16″ x 35-1/8″ x 14-13/16″ (389 x 892.5 x 377 mm)
• Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-1/4 lb (19.6 kg )

Standard Accessories

• Remote Control Unit (RC-905) x 1
• 45 RPM adaptor x 1
• Owner’s Manual x 1
• Warranty Card x 1
• Design and specifications are subject to change without notice.
• Weight and dimensions are approximate.
• Illustrations may differ slightly from production models.

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Teac GF-680 Solid State Amp Receiver-FAQs