Brand: SHARP
Category: Audio
Document Type: Manual
Language: EN
Manual for HT-CN300H
Uploaded: Nov. 21, 2025, 8:18 p.m.
Warranty Information
Guarantees repair or replacement for faulty workmanship or materials within one year of purchase.
Main Unit Operation:
- Turn the unit ON/STAND-BY using the button on the unit or remote.
- Connect speakers by matching colored leads to terminals.
- Connect antennas for FM/AM radio.
- Connect external equipment like TV, DVD player, VCR using supplied cables or purchase commercially available ones.
- Set the clock for accurate timekeeping and timer functions.
- Operate the remote control by pointing it at the remote sensor within range and angle.
Advanced Features:
- Use Radio Data System (RDS) to recall stations and display information.
- Adjust speaker settings (size, delay, level) for optimal sound.
- Set the timer to turn the unit on/off automatically at a specified time.
- Set the sleep timer to turn the unit off after a set duration.
Troubleshooting and error codes
| Symptom | Possible cause | Reference page | |
|---|---|---|---|
| Operation | When a button is pressed, the unit does not respond. | • Set this unit to the power stand-by mode and then turn it back on. If the unit still malfunctions, reset it. P. 41 | |
| Timer playback does not start. | • Is your unit unplugged, or has the power failure occurred? Reset the clock. P. 22 | ||
| The display on the unit is dark. | Press the DIMMER button on the remote control. P. 23 | ||
| The power is not turned on. | • Is the unit unplugged? P. 13 | ||
| TV image | No images are displayed. | • Is TV turned on? P. 18 • Is the input of TV switched? P. 18 • Is TV connected properly? P. 11 |
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| Settings are not displayed on the TV screen. | The settings will not appear when TV is connected with an S-video cable. Verify on the main unit display. P. 23 | ||
| Interference or noise occurs on the TV image. | • Is the unit placed near TV with internal aerial? Use an external aerial. P. 14 | ||
| Colour variation interference shows on the TV image. | • Are the speakers placed in their proper distances? Turn off the TV and turn it back on after 15-30 minutes. If the situation persists, move the speakers further away from the TV. P. 14 | ||
| Sound | No sound is heard. | • Is the volume level set to "0"? P. 23 • Are the speaker wires disconnected? P. 8 • Is the speaker size set to NO (OFF)? P. 35 • Is other equipment connected properly? P. 11 |
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| The sounds from speakers are not well balanced. | • Are the speaker leads connected to the wrong channels? P. 8 • Is each speaker placed at the same distance from the listener? P. 14 • Are speakers adjusted to the same level? P. 37 |
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| Noise is heard during playback. | • Move the unit away from any computers or mobile phones. — | ||
| Tuner | Radio makes unusual noise consecutively. | • Move the unit away from any computers or mobile phones. P. 9 • Is the FM aerial or AM loop aerial placed properly? Move the aerial away from the AC power lead if located near. P. 9 |
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| Remote control | The remote control does not operate properly. | • Is the remote control plugged in? P. 13 • Is the battery polarity respected? P. 16 • Are the batteries dead? P. 16 • Is the distance or angle incorrect? P. 16 • Are there any obstructions in front of the remote control sensor? P. 9 • Is the remote control sensor connected to the main unit? P. 9 • Is the LEARN/TRANSMIT selector switch set to LEARN? P. 20 • Is the remote control sensor exposed to strong light (inverter fluorescent light, direct sunlight, etc.)? P. 16 • Is the remote control for another equipment used simultaneously? P. 16 |
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| The unit cannot be turned on with the remote control. | • Is the AC power lead of the unit plugged in? P. 13 • Is the remote control plugged in? P. 13 • Are the batteries inserted? P. 16 |
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| Signals are not memorised in operation buttons for other equipment. | • Is the remote control plugged in? P. 13 • Is the angle or the distance correct for memorisation? P. 20 |
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