6 Troubleshooting
| Symptom |
| Possible Cause |
| Remedy |
|
|
|
|
| |
3. Batteries will not be charged: | 1. | Charging cable is not or loosely | 1. | Connect charging cable or push | |
|
|
| plugged in. |
| connectors all the way into the |
|
|
|
|
| charging jacks. |
|
| 2. | Batteries are not correctly aligned | 2. | Check orientation of batteries inside |
|
|
| with polarity marks. |
| battery compartment. |
|
| 3. Headphones are ON during | 3. Switch headphones OFF. | ||
|
|
| charging. |
|
|
|
|
|
|
|
|
4. | Mono sound: | 1. | Connected audio source operates in | 1. | Switch audio source to stereo mode. |
|
|
| mono mode. |
|
|
|
| 2. | Transmitter is not correctly con- | 2. | Check cable connection between |
|
|
| nected to audio source. |
| transmitter and audio source. |
|
|
|
|
|
|
5. | Noise: | 1. | Transmitter is set to the wrong | 1. | Use |
|
|
| carrier frequency. |
| carrier frequency. |
|
| 2. | Frequency setting on headphones | 2. | Move about 33 ft. (10 m) away from |
|
|
| does not match transmitter carrier |
| transmitter and readjust TUNING |
|
|
| frequency. |
| control on headphones. |
|
| 3. Audio level at transmitter input is too | 3. Increase audio source volume. | ||
|
|
| low. |
|
|
|
| 4. | Input signal is noisy. | 4. | Check audio source. |
|
| 5. | Batteries are low. | 5. | Charge batteries. |
|
|
|
|
|
|
6. | Distorted sound: | 1. | Audio level at transmitter input is too | 1. | Decrease audio source volume. |
|
|
| high. |
|
|
|
| 2. | Transmitter and headphones carrier | 2. | Readjust TUNING control on head- |
|
|
| frequencies do not match exactly. |
| phones. |
|
| 3. Batteries are low. | 3. Charge batteries. | ||
|
|
|
|
|
|
7. | Intermodulation noise: | 1. | Electrical appliances with poor inter- | 1. | Switch off any “suspicious” applian- |
|
|
| ference protection. |
| ces (if possible). |
|
| 2. | Audio source or sound carrier | 2. | Check audio source or sound |
|
|
| defective. |
| carrier. |
|
|
|
|
|
|
8. | Headphones receive unwanted | 1. | A neighbor uses similar UHF head- | 1. | Use |
| transmitters: |
| phones. |
| carrier frequency and readjust |
|
|
|
|
| TUNING control on headphones. |
|
|
|
|
|
|
9. | Overemphasized bass or treble | 1. | Bass or treble control settings on | 1. | Readjust bass or treble controls. |
| range: |
| audio source. |
|
|
|
|
|
|
|
|
14
