Kenwood KR-796 - User Manual

This document is an instruction manual for the Kenwood Stereo Receiver models KR-896, KR-796, and KR-596. It provides comprehensive information on the device's functions, usage, and maintenance.

Function Description:

The Kenwood Stereo Receiver is designed to provide high-quality audio reception and playback. It features an AM/FM stereo receiver with an auto-tuning system and 30-station random preset memory, allowing users to easily access and store their favorite radio stations. The receiver also includes various input selectors for connecting external audio and video components such as CD players, turntables, cassette decks, and VCRs.

For models KR-896 and KR-796, advanced surround sound capabilities are integrated. These models support Dolby Surround Pro Logic playback, which allows users to experience a cinematic audio effect similar to movie theaters from video software programs carrying the Dolby Surround mark. This feature extracts surround data from compatible sources, creating an immersive sound environment. Additionally, these models offer Dolby 3 Stereo Mode, which provides an active center channel for a better, more stable center image. This mode is particularly useful for stereo video programs and music, or when a full surround system setup is not feasible.

The receiver also includes an ADAPTOR jack, which allows for the connection of external audio processing equipment like graphic equalizers. This enhances the flexibility of the system, enabling users to customize their audio output.

Usage Features:

The manual details the step-by-step process for setting up and operating the receiver.

Power and Basic Operation:

Users can turn the power on and off using either the main unit's power switch or the remote control. The receiver features a "Standby mode" where a small amount of current is supplied to back up memory contents, allowing for remote power control.

Input Selection:

The input selector knob on the main unit or the INPUT key on the remote control allows users to switch between various audio/video sources (TUNER, PHONO, CD, TAPE, VIDEO). The selected source name is displayed on the unit.

Volume and Tone Control:

Volume can be adjusted using the VOLUME CONTROL knob on the main unit or the VOLUME CONTROL keys on the remote. The volume level is indicated by a 10-point bar display. Bass and treble levels can be fine-tuned using the tone control knobs on the main unit. A BALANCE control knob is also available to adjust the left and right speaker volume balance.

Muting Function:

A MUTE key on the remote control allows for temporary silencing of the audio, with a MUTING indicator blinking on the display. Pressing the key again resumes the previous volume.

Headphone Listening:

The receiver includes a PHONES jack for private listening. When headphones are plugged in, the SPEAKERS switch should be set to OFF to silence the main speakers.

Radio Reception:

The manual provides instructions for receiving broadcast stations and storing them in preset memory.

Antenna Connection: Detailed methods for connecting AM loop, AM outdoor, FM indoor, and FM outdoor antennas are provided, emphasizing optimal placement for best reception.
Tuning Mode: Users can select between AUTO tuning mode for automatic station search or MANUAL tuning mode for precise frequency selection.
Preset Memory: Up to 30 stations can be stored in random preset memory, regardless of their broadcast bands. Stations can be recalled using the P.CALL key or numeric keys on the remote. The P.CALL function also allows for sequential listening to all preset stations.
FM DE-EMPHASIS/CHANNEL SPACE Switch: This switch on the rear panel allows adjustment of FM de-emphasis and channel spacing to match regional broadcast standards. Users are advised to disconnect the power cord before changing this setting.

System Control Operation:

When connected to other Kenwood system components (CD player, turntable) via SYSTEM CONTROL terminals, the receiver enables automatic play operation. For example, selecting a source like CD or turntable will automatically put the connected component into play mode. These connected components can also be controlled via the receiver's remote control.

Dolby Surround Playback (KR-896/KR-796 only):

Dolby PRO LOGIC Field Adjustment: This section guides users through setting up the Dolby PRO LOGIC mode, including selecting the center mode (NORMAL, WIDE BAND, PHANTOM) and adjusting volume balance and delay time. A test tone function assists in balancing speaker levels.
Dolby 3 STEREO Mode Adjustment: Similar to Pro Logic, this section covers setting up Dolby 3 STEREO mode, selecting the center mode, and adjusting center speaker volume using a test tone.
Returning to Normal Stereo Playback: A BYPASS key allows users to easily switch back to normal stereo playback from any surround mode.

Maintenance Features:

The manual includes important information for maintaining the device and troubleshooting common issues.

Unpacking and Shipping:

Users are advised to unpack the unit carefully, check for shipping damage, and retain the original carton and packing materials for future transport or shipping.

AC Voltage Selection:

For models shipped to countries other than the U.S.A. and Canada, an AC voltage selector switch on the rear panel allows users to match the unit's voltage setting to their local line voltage. A small screwdriver is required for this adjustment, and improper setting can void the warranty.

Safety Precautions:

The manual highlights critical safety warnings, including preventing exposure to rain or moisture, and cautions against removing the cover to avoid electric shock. It also explains the meaning of the lightning flash and exclamation point symbols.

System Connections:

Detailed diagrams and instructions are provided for connecting various components, including graphic equalizers, surround speakers, center speakers, VCRs, CD players, cassette decks, and turntables.

Firm Connections: Emphasizes the importance of firmly connecting cords to prevent sound loss or noise.
Power Cord Disconnection: Users are instructed to remove the power cord from the AC outlet before plugging or unplugging connection cords to prevent malfunctions or damage.
ADAPTOR Terminals: Instructions for using shorting pins when ADAPTOR terminals are not in use are provided to ensure sound production.

Troubleshooting Guide:

A comprehensive "In case of difficulty" section helps users diagnose and resolve common problems.

Microprocessor Reset: Instructions are given on how to reset the microprocessor if the display is distorted or the unit malfunctions.
Remote Control Issues: Solutions for non-operational remote controls, such as replacing batteries or checking connections.
Tuner Section Problems: Remedies for issues like no radio reception or interference, including antenna connection and placement advice.
Amplifier Section/Speaker Problems: Solutions for no sound output, sound from only one speaker, or issues with surround/center speaker output, typically involving checking speaker connections and balance/level settings.
Hum Noise: Advice on resolving hum noise when PHONO input is selected, by ensuring secure audio cord insertion and proper grounding.

General Advice:

The manual advises against using contact cleaners, especially those containing oil, as they may deform plastic components. It also notes that Kenwood continuously advances its products, so specifications may change without notice.