Manual for M-76 / M-56

Manual for M-76 / M-56

Brand: KENWOOD

Category: Audio

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 6:41 p.m.

Manual Publish Date: 1992-12-11

Warranty Information

Refer to the warranty card for details regarding product warranty.

System Setup: Connect all components using the provided cables and refer to the "System connections" section. Ensure all connections are firm. Plug in the power cord only after all connections are complete.

Basic Operation:

  • Power On/Off: Press the POWER key on the amplifier or use the remote control.
  • Volume Adjustment: Use the VOLUME CONTROL knob on the amplifier or the remote control. Balance can be adjusted using the BALANCE control.
  • Tone Control: Adjust BASS and TREBLE using the respective knobs.
  • Input Selection: Use the INPUT SELECTOR knob on the amplifier or the corresponding keys on the remote control to choose the source (CD, TUNER, TAPE, etc.).
  • Cassette Deck Operation: Use keys like PLAY, STOP, FAST FORWARD, REWIND, RECORD, and EJECT for tape functions. Refer to "Controls and indicators" for specific keys.
  • CD Player Operation: Use keys like PLAY/PAUSE, STOP, SKIP, SEARCH, and OPEN/CLOSE for CD functions.
  • Tuner Operation: Use tuning and band selection keys to receive radio stations.

Timer Functions: The system supports timer playback and recording for CD and tape, as well as radio broadcasts. Refer to the "Timer operations" section for detailed programming instructions.

Remote Control: Ensure batteries are loaded correctly. Operate the remote control within the specified range and angle.

Troubleshooting and error codes

SymptomCauseRemedy
Remote control unit
Remote control operation is not possible.
  • Batteries are exhausted.
  • The audio cords and the system control cords are not connected properly.
  • The remote control unit is too far away from the main system, controlling angle is too large, or there is an obstacle in between.
  • The source component to be operated does not contain the analog disk, tape(s) or CD.
  • An attempt is made to play a tape which is being recorded in the cassette deck.
  • Replace with new batteries.
  • Connect properly referring to provided Connecting diagram.
  • Operate the remote control unit within the controllable range.
  • Place an analog disk, tape(s) or CD in the source component to be played.
  • Wait until the recording is completed.
Amplifier, speakers
Sound is not output.
  • The speaker cords are disconnected.
  • The VOLUME CONTROL knob is set to the minimum position.
  • The MUTE key is set to ON and the point indicator is blinking.
  • The speakers switch is OFF.
  • Connect properly referring to provided Connecting diagram.
  • Adjust the volume to a proper level.
  • Press the MUTE key to OFF.
  • Adjust the SPEAKERS (A and B) switch properly, Then set the SPEAKERS switch ON.
No sound comes out, and "PROTECT" is shown on the display. Speaker cords are short-circuited. Unplug the power cord, eliminate the short-circuiting, then turn on the power again.
Sound is not output from one of the speakers.
  • The speaker cord is disconnected.
  • The BALANCE control is set to an extreme position.
  • Connect properly referring to provided Connecting diagram.
  • Adjust the Left/Right balance.
Sound becomes distorted. Tone control is set completely to the right. Adjust the tone control to the center.
A hum noise is generated when the PHONO input selector key is pressed.
  • The audio cord from the turntable is not inserted securely into the PHONO jacks.
  • The turntable is not grounded.
  • Insert the audio cord plugs securely into the PHONO jacks.
  • Connect the grounding wire to the GND terminal on the rear panel.
Tuner
The clock display is blinking without changing from a certain time.
  • There was a power failure.
  • The power cord was unplugged.
  • Set the current time again.
  • Set the current time again.
The timer does not work.
  • The current time is not set, or there was a power failure.
  • The timer ON time and OFF time have not been set.
  • The timer execution has not been speci-fied.
  • Set the current time referring to "Time ad-justment".
  • Set the timer ON time and OFF time.
  • Specify execution by pressing the EXE. key.
Radio stations cannot be received.
  • No antenna is connected.
  • The broadcast band is not set properly.
  • The frequency of the desired station is not tuned.
  • Connect an antenna.
  • Set the broadcast band properly.
  • Tune the frequency of the desired station.
A station which was preset cannot be received by pressing the corresponding numeric key.
  • The preset station belongs to a frequency that cannot be received.
  • The preset memory was cleared because the power cord had been unplugged for a long period of time.
  • Preset a station with a receivable frequen-cy.
  • Preset the station again.
Interference.
  • Noise due to ignition noise of an automo-bile.
  • Noise due to an influence from an electric appliance.
  • Noise due to a nearby TV set.
  • Install the outdoor antenna apart from the road.
  • Turn off the power of the appliance.
  • Install the system more apart from the TV set.
CD player
Disc is loaded, player does not play.
  • Disc is loaded upside down.
  • Disc is loose.
  • Disc is dirty.
  • Disc is cracked.
  • Condensation occurred on the optical lens unit.
  • Load the disc again with its label side up.
  • Insert the disc properly.
  • Wipe off the dust on the surface of the disc referring to "Disc handling precau-tions".
  • Replace the disc with a new one.
  • Leave the player for about 1 hour so that the condensation is removed.
No sound.
  • Disc is not loaded.
  • Disc is too dirty.
  • Disc is cracked.
  • The connection cords are inserted loose-ly.
  • Load a disc.
  • Wipe off the dust on the disc surface re-ferring to "Disc handling precautions".
  • Replace the disc with a new one.
  • Connect all connection cords fimly.
Music is interrupted. (Sound is skipped.)
  • Disc is too dirty.
  • Disc is cracked.
  • Oscillation is applied to this unit.
  • Wipe off the dust on the disc surface re-ferring to "Disc handling precautions".
  • Replace the disc with a new one.
  • Try selecting a place where no strong vi-brations occur by changing the installation place, etc.
Cassette decks
Sounds is not produced when the Play key is pressed.
  • The connection cords are connected im-properly.
  • The head is dirty.
  • Tape is irregularly wound and hard to take up.
  • A non-recorded tape is being played.
  • Connect properly referring to provided Connecting diagram.
  • Clean the head referring to "Cleaning the head section".
  • Replace the tape.
  • Play a recorded tape.
The deck does not work when an opera-tion key is pressed.
  • The cassette holder is not closed com-pletely.
  • The operation key was pressed immedi-ately after closing the cassette holder.
  • The operation key was pressed within less than 3 seconds after the power was turned on.
  • Tape is not inserted.
  • Tape is irregularly wound and hard to take up.
  • Tape has been fully wound to reel.
  • Close the cassette holder completely.
  • Press the desired operation key in a few seconds after closing the cassette holder.
  • Press the desired operation key in more than 3 seconds after turning the power on.
  • Insert a tape.
  • Replace the tape.
  • Change the tape transport direction or in-sert the tape inversely.
DPSS malfunctions. The tape is not suitable for DPSS opera-tion, for example the spaces between tunes are too short. Read "DPSS operation".
CCRS does not work.
  • A recordable tape is not inserted in Deck B.
  • A disc is not placed in the CD player.
  • The disc is dirty.
  • Insert a recordable tape in Deck B and press the CCRS key.
  • Place a disc in the CD player and press the CCRS key.
  • Clean the disc, place it in the CD player, and press the CCRS key.
The dubbing on Deck A and Deck B ends at different timing. This is due to the difference in tape length or to the characteristics of the cas-sette deck mechanisms. A small time difference is not regarded as a failure.
The cassette holder does not open when the eject key is pressed. The key is pressed during recording or playback. Press in the Stop mode.
Sound is hoarse, or high frequencies are not audible.
  • The head is dirty.
  • The tape is stretched or wrinkled.
  • The recording level was too high.
  • A tape recorded with distorted sound is being played.
  • Clean the head referring to "Cleaning the head section".
  • Replace the tape.
  • Adjust the recording level referring to "Re-cording operation on cassette deck".
  • Replace the tape.
Sound is distorted. The protection tab on the cassette has been broken. Use a cassette with unbroken tab or close the hole.
Recording is not initiated when the REC key is pressed.
  • The cassette holder is not closed com-pletely.
  • The recording level is set to the minimum position.
  • The TAPE A or B input selector is select-ed on the amplifier.
  • Tape has been fully wound to a reel.
  • Close the cassette holder completely.
  • Adjust the recording level referring to "Re-cording operation on cassette deck".
  • Press the input selector key of the source to be recorded.
  • Change the tape transport direction of Deck B or insert the tape inversely.
Noise level is high.
  • The head is magnetized.
  • External noise is induced.
  • Demagnetize the head referring to "Clean-ing the head section".
  • Install the system apart from other electri-cal appliances and TV set.
Sound is vibrating.
  • The recording level was too low.
  • A tape recorded with Dolby NR ON is be-ing played with Dolby NR OFF.
  • Adjust the recording level referring to "Re-cording operation on cassette deck".
  • Press the DOLBY NR key to B or C.
 
  • The capstans or pinch rollers are dirty.
  • Tape is irregularly wound.
  • Clean the head referring to "Cleaning the head section".
  • Wind the tape regularly by fast forward-ing, rewinding or playing it fully from one reel to another.
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