Yamaha CLP-153S Owner's Manual - Page 20

Troubleshooting If you encounter what appears to be a malfunction, please check the following points before assuming that your Clavinova is faulty. 1. No Sound When the Power is Turned ON Is the AC plug properly connected to an AC wall outlet? Check the AC connection carefully. Is the MASTER VOLUME control turned up to a reasonable listening level? 2. The Clavinova Reproduces Radio or TV Sound This can occur if there is a high-power transmitter in your vicinity. Contact your Yamaha dealer. 3. Intermittent Static Noise This is usually due to turning ON or OFF a household appliance or other electronic equipment which is fed by the same AC mains line as your Clavinova. 4. Interference Appears On Radio or TV Sets Located Near the Clavinova The Clavinova contains digital circuitry which can generate radio-frequency noise. The solution is to move the Clavinova further away from the affected equipment, or vice versa. 5. Distorted Sound When the Clavinova is Connected to An External Amplifier/Speaker System If the Clavinova is connected to a stereo system or instrument amplifier and the sound is distorted, reduce the setting of the Clavinova volume control to a level at which the distortion ceases. Options & Expander Modules q Options BC-8 Bench A comfortable bench styled to match your Yamaha Clavinova. HPE-160 Stereo Headphones High-performance lightweight dynamic headphones with extra-soft ear pads. KC-763 (CLP-152S) / KC-883 (CLP-153S) Key Cover A convenient way to keep your keyboard clean and dust-free. q Expander Modules DOU-10 Disk Orchestra Unit A range of MIDI recording and playback functions, plus Yamaha Disk Orchestra Collection, Disklavier PianoSoft™, General MIDI, and Standard MIDI File disk playback capability. 17