MERLIN 232
6 Troubleshooting
Symptom |
| Possible Cause |
| Remedy |
| 1. | Transmitter is not connected to | 1. | Connect transmitter to audio |
|
| audio source. |
| source. |
| 2. | Connected audio source is | 2. | Switch audio source on to feed sig- |
|
| switched off. |
| nal to transmitter input. |
| 3. | Volume control on audio source is | 3. | Set audio source volume to desired |
No sound. |
| at zero. |
| level. |
4. | Battery inside the transmitter and/or | 4. | Charge batteries. | |
|
| batteries inside the headphones are |
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|
|
| dead. |
|
|
| 5. | Transmitter and or headphones are | 5. | Switch transmitter and/or head- |
|
| switched off. |
| phones on. |
| 6. | VOLUME control on headphones is | 6. | Set VOLUME control to desired |
|
| at zero. |
| level. |
|
|
|
|
|
Status LED on transmitter/ | 1. | Power to transmitter/headphones is | 1. | Switch power to transmitter/head- |
| OFF. |
| phones ON. | |
headphones | 2. | Batteries are not correctly aligned | 2. | Check orientation of batteries in |
is not lit. |
| with polarity marks. |
| battery compartments. |
| 3. | Battery/batteries dead. | 3. | Charge battery/batteries. |
|
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|
Status LED on transmitter is not lit. | • | Audio source is OFF. | • | Switch audio source ON. |
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|
Mono sound on headphones. | 1. | Connected audio source operates in | 1. | Switch audio source to stereo |
| mono mode. |
| mode. | |
| 2. | Transmitter is connected to mono | 2. | Connect transmitter to stereo out- |
|
| output. |
| put (if available). |
|
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|
|
| 1. | Transmitter and receiving frequen- | 1. | Press AUTOTUNING switch on |
|
| cies are not identical. |
| headphones or use OFF/FREQ |
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|
|
| selector to select different carrier |
|
|
|
| frequency and press AUTOTUNING |
Loud noise. |
|
|
| on headphones. |
2. | Audio level at transmitter input is | 2. | Use INPUT LEVEL selector to | |
|
| too low. |
| increase input gain, or turn up audio |
|
|
|
| source volume. |
| 3. | Input signal is noisy. | 3. | Check audio source. |
| 4. | Battery/batteries dead. | 4. | Charge battery/batteries. |
| 5. | Transmitter position. | 5. | Relocate transmitter (if possible). |
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|
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|
|
| 1. | Audio level at transmitter input is | 1. | Use INPUT LEVEL selector to |
|
| too high. |
| reduce transmitter input gain, or |
Distorted sound. |
|
|
| decrease audio source volume. |
2. | Transmitter and headphone carrier | 2. | Use OFF/FREQ selector on trans- | |
|
| frequencies do not match. |
| mitter to select different carrier fre- |
|
|
|
| quency and press AUTOTUNING |
|
|
|
| switch on headphones. |
| 3. | Battery/batteries dead. | 3. | Charge battery/batteries. |
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