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General| Brand | Harman Kardon |
|---|---|
| Model | HK690 |
| Category | Amplifier |
| Language | English |
Advice on safely disconnecting and handling the power cord to prevent damage and hazards.
Warning against opening the unit to prevent electric shock and ensure warranty validity.
Procedure to follow if abnormal smells or smoke are detected: turn off and unplug.
Step-by-step guide to selecting sources, setting speakers, and adjusting volume/tone.
Checks if the unit is plugged into a live outlet when no lights are on.
Troubleshooting steps for no audio output, checking source, volume, and speaker connections.
Diagnosing issues with sound only coming from one speaker, checking wiring.
Steps to resolve issues with the remote control or front panel controls not functioning.
Troubleshooting faint phono sound, hum, ringing, or howl.
Details on continuous and dynamic power output at different impedances for HK650 and HK690.
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