Brand: Panasonic
Category: Automotive Electronics
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for CQ-DRX900U
Uploaded: Nov. 21, 2025, 7:58 p.m.
Warranty Information
Refer to the manual for details on product servicing and warranty information.
Power
Turn the key in the ignition until the accessory indicator lights. On: Press [PWR]. Off: Press again.Volume
[^] Up [V] Down Note: The sound levels are respectively stored in the memory for each source mode.Source
Press [SOURCE] to change the source. Radio CD Player (When a CD is connected) CD Changer (When CD Changer is connected) AUX In (When AUX-IN setting is activated)Clock Set
1. Press and hold [DISP] for more than 2 seconds. 2. Press [<] Hour adjustment [A] Advance [V] Back 3. Press [>] Minute adjustment [^] Advance [V] Back 4. Press [DISP] endTroubleshooting and error codes
| Trouble | Cause | Step |
|---|---|---|
| No power | Car's engine switch is not on | Turn your car's ignition switch to ACC or ON |
| Cables are not correctly connected | Connect cables correctly | |
| Battery cable is not correctly connected | Connect the battery cable to the terminal that is always live | |
| Accessory cable is not correctly connected | Connect the accessory cable to your car's ACC source | |
| Grounding wire is not correctly connected | Connect the grounding wire to a metal part of the car | |
| Fuse is burnt | Call the store where you purchased the unit, or your nearest service station (see the attached sheet) and ask for fuse replacement | |
| No sound | Mute is set to ON | Set it to OFF |
| Cables are not correctly connected | Connect cables correctly | |
| External-mute cable is not correctly connected (The word MUTING is shown) | Connect the Navi-mute cable correctly | |
| Condensation (dew) | Wait for a while before use | |
| Buttons unusable | Spectrum analyzer is in demo mode | Press [DISP] to cancel demo mode |