English
8. IN CASE OF DIFFICULTY
Problem | Cause | Measure |
Power does not | Fuse is blown. | Replace with a fuse of the same amperage. If the |
turn on. |
| fuse blows again, consult your store of purchase. |
(No sound is |
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produced.) | Incorrect wiring. | Consult your store of purchase. |
| No sound output | Power antenna lead is | 1. | Turning the unit off. |
| when operating | shorted to ground or | 2. | Remove all wires attached to the power antenna |
| the unit with | excessive current is required |
| lead. Check each wire for a possible short to |
| amplifiers or | for |
| ground using an ohm meter. |
| power antenna | or power antenna. | 3. | Turning the unit back on. |
| attached. |
| 4. | Reconnect each amplifier remote wire to the |
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| power antenna lead one by one. If the amplifiers |
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| turn off before all wires are attached, use an |
General |
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| external relay to provide |
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| (excessive current required). | |
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| Nothing happens | The microprocessor has | Press the reset button for | |
| when buttons are | malfunctioned due to noise, | about 2 seconds with a thin | |
| pressed. | etc. | rod. | |
| Display is not |
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| accurate. |
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| Reset button |
| No sound heard | The speaker protection | 1. Turn down sound volume. Function can also be | |
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| circuit is operating. | restored by turning the power off and on again. | |
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| (Speaker volume is reduced automatically when | |
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| the speaker protection circuit operates). | |
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| 2. If the sound is muted again, consult our service | |
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| department. | |
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| No sound heard | MP3/WMA files are absent in | Write MP3/WMA files onto the disc properly. | |
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| a disc. |
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| Files are not recognized as | Use MP3/WMA files encoded properly. | |
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| an MP3/WMA file. |
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| File system is not correct. | Use ISO9660 level 1, 2, 3 or JOLIET or Romeo file system. | |
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| Sound skips or is | Compact disc is dirty. | Clean the compact disc with a soft cloth. | |
| noisy. |
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| Compact disc is heavily | Replace with a compact disc with no scratches. | ||
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| scratched or warped. |
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CD/MP3 |
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Sound is cut or | MP3/WMA files are not | Use MP3/WMA files encoded properly. | ||
| skipped. | encoded properly. |
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| Noise is |
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| generated or |
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| noise is mixed |
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| with sound. |
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| Sound is bad | Water droplets may form on | Let dry for about 1 hour with the power on. | |
| directly after | the internal lens when the |
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| power is turned | car is parked in a humid |
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| on. | place. |
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| Wrong filename | File system is not correct. | Use ISO9660 level 1, 2, 3 or JOLIET or Romeo file system. | |
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| Play list play is | File name or extension is not | Use alphanumeric/ASCII characters for MP3/WMA file name. | |
| not performed. | correct. | Use “.M3U” or “.ASX” for the file extension of a play list. | |
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| English |
| Problem | Cause | Measure | |
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| MD cannot be | Another MD is already | Eject the MD before loading the new one. |
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| loaded. | loaded. |
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| MD inserted wrongly. | Insert correctly. |
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MD | Sound skips or is | MD is heavily scratched or | Replace with an MD with no scratches. |
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noisy. | warped. |
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| Sound is bad | Water droplets may form on | Let dry for about 1 hour with the power on. |
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| directly after | the internal lens when the |
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| power is turned | car is parked in a humid |
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| on. | place. |
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26 DMZ637MP | DMZ637MP 27 |
