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EP400
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No Power
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Verify electrical outlet breaker |
| Verify that the power cord is fully inserted in subwoofer receptacle |
| Check the two middle 250mA fuses and the 3.15A fuses in the AC switch. (View Fuses) |
Check that the fuse box is in the correct voltage 110 position (or flip to 220 for Europe and China, Click to see diagram)
World Electric Power - Click here to view a complete list of world Voltages and Frequencies. |
| Humming |
Remove or insert ground screw
( View Chassis Ground Screw ) |
| Put Antenna Ground Isolator in incoming antenna cable |
| Try to plug the subwoofer in the same electrical outlet which is used by the other system components or the same electrical circuit |
| Verify that the electrical wall outlet is properly grounded and that the polarity is respected |
| As a last resort we suggest, is to use a Universal adaptable three-prong electrical plug (View) |
| F.M. Noise |
Use fully shielded coax cable to the antenna - RG6 Quad Shielded recommended |
| Do not use a folded dipole antenna |
| TV Interference |
Use fully shielded coax cable to the antenna - RG6 Quad Shielded recommended |
| Green Light On But No Audio |
1) If using high level in, check that speaker leads are not reversed
2) Check input cable is completely inserted and working
3) Turn amp off and then on again
4) Speaker wire internally may be disconnected
5) Check the top 250mA fuse and the bottom 15A fuse (View Fuses)
6) Check your receiver menu settings to see if sub is turned on
7) Check that the fuse box is in 110 position for 110 use (220 position will have green light with no audio on 110 circuits) |
| Stops working after power interruption |
Turn amp OFF and then ON again |
| Amber Light / No Audio |
Turn trim switch out of "Load" position |
| Makes intermittent noises after power interruption |
Turn amp off and then on again |
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Vibrating / Rattling |
Remove the speaker from the cabinet to verify that all wires are secured and not contacting the speaker during operation. |
