Identifying & Solving Common False Faults in Car Audio
With technological and industrial advancements, car audio constantly updates with new features, especially high-end models offering comprehensive functions but complex operation, posing installation and usage challenges. Incorrect operation or activating a switch/button can create false faults or abnormalities. A false fault means the audio itself is fine; improper use caused the issue.
Don't panic. Read the manual, compare operation steps to find the cause, or call a service station/expert. This saves trips and unnecessary fees. Below are typical examples based on repair experience.
I. Using the Reset Key
1. Some units like Kenwood KRC970 series change radio systems immediately after power cycle. Press the reset key to restore the original system. If unsuccessful, disconnect the power cable for 3 minutes before reconnecting.
2. SONY XR-C5200, XR6200, etc., sometimes show no response after installation. If wiring is correct, press the reset key at the bottom left of the panel for >2 seconds, then reattach the panel.
3. Kenwood KRC487 tape doesn't play normally when pressed. This is a microprocessor fault. Press the front panel reset key.
4. Kenwood changer displays playback but no sound. Microprocessor not running normally. Press the device's reset key.
5. High-end units with track programming may malfunction or freeze due to incorrect operation. Use the reset key to clear erroneous memory.
6. Old Aiwa/Sony models may fail to play CD. Find the reset key, hold for 2 seconds until internal reset action is heard. If still not working, seek professional repair.
II. Volume Balance Usage
Due to limited panel space, keys serve multiple functions. Incorrect volume balance adjustment or operation often causes one side (left/right or front/rear) or only one speaker to play. Many mistake this for audio/line faults. If encountered, first adjust the volume balance button per the manual to achieve balance.
Don't panic. Read the manual, compare operation steps to find the cause, or call a service station/expert. This saves trips and unnecessary fees. Below are typical examples based on repair experience.
I. Using the Reset Key
1. Some units like Kenwood KRC970 series change radio systems immediately after power cycle. Press the reset key to restore the original system. If unsuccessful, disconnect the power cable for 3 minutes before reconnecting.
2. SONY XR-C5200, XR6200, etc., sometimes show no response after installation. If wiring is correct, press the reset key at the bottom left of the panel for >2 seconds, then reattach the panel.
3. Kenwood KRC487 tape doesn't play normally when pressed. This is a microprocessor fault. Press the front panel reset key.
4. Kenwood changer displays playback but no sound. Microprocessor not running normally. Press the device's reset key.
5. High-end units with track programming may malfunction or freeze due to incorrect operation. Use the reset key to clear erroneous memory.
6. Old Aiwa/Sony models may fail to play CD. Find the reset key, hold for 2 seconds until internal reset action is heard. If still not working, seek professional repair.
II. Volume Balance Usage
Due to limited panel space, keys serve multiple functions. Incorrect volume balance adjustment or operation often causes one side (left/right or front/rear) or only one speaker to play. Many mistake this for audio/line faults. If encountered, first adjust the volume balance button per the manual to achieve balance.