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Instructions to prevent electric shock by not removing covers and referring servicing to qualified personnel.
Warning to protect the appliance from rain, moisture, fire, or electric shock.
Instructions for proper insertion of the plug into the electrical outlet to prevent shock.
Guidelines for safely handling the power cord, including disconnection and avoiding damage.
Advice on positioning the unit to ensure proper ventilation and avoid environmental hazards.
Warnings against self-servicing the unit and guidance on handling potential issues.
Instructions for safe and effective cleaning methods for the audio equipment.
An overview of the RDS feature and its benefits for enhancing FM radio listening.
Buttons and knobs for unit power, station tuning, and mode selection.
Controls for storing, recalling, and scanning preset stations, including memory and numeric buttons.
Buttons for managing RDS, AF, PTY, FM modes, RF/IF bands, and display settings.
The main digital display showing frequency, station information, and operating status.
Controls unit power on/off with associated indicator lights.
Button to cycle through and display various station and RDS information.
Buttons for storing and recalling stations into memory and preset locations.
Buttons for RDS activation, alternate frequencies (AF), and program type (PTY) selection.
Button to manually enter or modify names for non-RDS stations.
Primary control for tuning stations manually or using automatic tuning methods.
Cycles through FM, MW, and LW frequency bands.
Switches between stereo and mono reception modes for FM broadcasts.
Adjustments to mitigate RF interference and optimize reception from adjacent stations.
Engages automatic tuning (AUTO) or manual tuning modes for station selection.
Buttons for selecting preset stations manually or scanning through them automatically.
Initiates an automatic scan through preset memory stations, playing each briefly.
Adjusts the intensity of the front panel display indicators.
Used to select or enter stations into memory locations.
Main display panel showing frequency, station information, and operating status.
Diagrams and instructions for connecting FM and AM antennas, including adapters.
Connections for audio output to amplifier and for remote control integration.
Connection point for the AC power cord.
Guidance on selecting and connecting indoor or outdoor FM antennas for optimal reception.
Instructions for connecting the AM antenna and positioning it for best reception.
Instructions for connecting the tuner's output to a preamplifier or integrated amplifier.
Connecting the tuner for remote control operation with other Harman Kardon components.
Instructions for connecting the unit to the AC main outlet or a switched outlet.
How to select desired frequency bands (FM, MW, LW).
Steps for automatically scanning and tuning to FM stations with sufficient signal.
Method for tuning LW or MW bands, or FM stations when automatic tuning is not optimal.
Step-by-step guide to storing up to 30 stations into memory.
Methods for directly recalling or scanning through preset memory locations.
Solutions for issues like the display not illuminating or no sound being heard.
Troubleshooting FM sound interference, stereo display issues, and distorted audio.
Resolving problems with buzzing, intermittent signals, preset station entry, and RDS data.
Addressing poor radio reception and locating few stations by checking antenna and connections.
Detailed technical specifications for FM reception sensitivity, selectivity, and audio output.
Technical specifications for AM reception sensitivity, image rejection, and audio output.
Information on power consumption, dimensions, and weight of the unit.
Statement of compliance with technical standards and EEC directive for interference suppression.
The Harman Kardon TU950 is an AM/FM tuner designed to provide high-quality radio reception and a range of advanced features, including the Radio Data System (RDS). This tuner is engineered for superb performance and user-friendly operation, making it a central component for both information and entertainment in an audio system.
The TU950's primary function is to receive and process AM and FM radio signals. It offers both manual and automatic tuning methods, allowing users to easily find and lock onto desired stations. The tuner supports stereo FM reception, with an option to switch to mono for improved reception of weak or noisy signals.
A key feature of the TU950 is its integration of the Radio Data System (RDS). RDS allows the tuner to display various types of information transmitted by FM stations, such as station call signs, network identification, program types (PTY), and the correct time. This enhances the user experience by providing context and additional data about the broadcast. The tuner can also use RDS information to search for specific program types or automatically tune to the best station carrying a selected network.
The TU950 includes a memory system that allows users to store up to 30 preset stations for quick recall. This is particularly useful for frequently listened-to stations across different bands (FM, MW, LW). The unit also features a preset scan function, which automatically cycles through stored stations, playing each for a short period before moving to the next.
For optimal reception, the tuner offers RF Mode and IF Band adjustments. The RF Mode helps compensate for intermodulation noise in areas with strong signals or improves the reception of weak, distant signals. The IF Band adjustment allows users to change the intermediate frequency pass band to reduce interference from adjacent stations.
The TU950 is designed to integrate seamlessly into an existing audio system. It connects to a preamplifier or integrated amplifier via standard RCA output jacks. For remote control functionality, the tuner includes REMOTE IN/OUT jacks, allowing it to be controlled by a Harman Kardon remote-controlled amplifier.
Power On/Off: The unit is turned on or off by pressing the Power button. When on, the rings above and below the button glow green.
Display Control: The Display button cycles through various information displays, including frequency, signal level, station name, program type, preset number, and clock/time (when RDS is active). The available information varies depending on the band and RDS availability.
IF Band: The IF Band button (FM tuning only) switches between "NARROW" and "WIDE" pass bands. "NARROW" improves reception when interference from adjacent stations is present, while "WIDE" is for normal reception.
Character Button: This button enables users to enter or modify station names for FM, LW, or MW stations that do not broadcast RDS data. The Tuning Knob is used to select letters, numbers, or symbols, and the Character button advances to the next digit.
Display Mode: The Display Mode button dims the intensity of the front panel display indicators and can be pressed again to restore normal brightness.
Power Cord Handling: Always pull the plug itself, not the cord, when disconnecting from the AC outlet. Avoid placing heavy objects on the cord or making knots in it. Disconnect the plug if the unit will be unused for an extended period.
Placement: The unit should be placed on a firm, level surface. Avoid moist or humid places, direct sunlight, close proximity to heating equipment, direct drafts from air conditioners, very cold locations, or areas with excessive vibration or dust. Ensure adequate ventilation.
Moving the Unit: Before moving, unplug the power cord and disconnect all antenna and component wires.
Cleaning: Dust should be removed with a soft, dry cloth. For more thorough cleaning, use a soft cloth lightly dampened with mild soapy water, then wipe with a dry cloth. Never use benzene, thinner, alcohol, or other volatile agents, and avoid spraying insecticides near the unit.
Servicing: Do not attempt to service the unit yourself, as this can cause fire or shock and may void the warranty. Refer all servicing to qualified service personnel. If water or a small object enters the unit, immediately unplug the power cord and consult an authorized Harman Kardon service center.
Preset Memory Backup: The TU950 has a backup system that retains preset memory information for up to four weeks in the event of a power loss. If the unit is unplugged for longer than four weeks, all stations will need to be reprogrammed.
Troubleshooting: The manual provides a comprehensive troubleshooting guide for common issues like no sound, interference, display problems, or poor reception. Users are advised to check this list for solutions before contacting a service center.
FM Section| Usable FM Sensitivity, Mono | 11.2 dBf |
|---|---|
| 50dB Quieting Sensitivity, Stereo | 40.3 dBf |
| Signal-to-Noise Ratio @ 65dBf, Mono | 80 dB |
| Signal-to-Noise Ratio @ 65dBf, Stereo | 73 dB |
| Capture Ratio | 2.0 dB |
AM Section| AM Sensitivity, External Antenna | 400 µV/m |
|---|---|
| AM Image Rejection | 35 dB |
| AM IF Rejection | 50 dB |
| AM Signal-to-Noise | 45 dB |
| Audio Output Voltage @ 400Hz, 80% Mod. | 500 mV |
General Specifications| IF Rejection | 100 dB |
|---|---|
| Image Rejection | 90 dB |
| Spurious Response Rejection | 70 dB |
| Power Consumption | 110 W |
| Audio Output Voltage @ 1kHz, 40kHz Mod | 500 mV |
Dimensions and Weight| Dimensions (W×H×D) | 440 x 95 x 300 mm |
|---|---|
| Weight | 4.3 kg |
| Depth measurement includes knobs, buttons and antennas | Yes |
