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MPX6411
16
TROUBLESHOOTING SPECIFICATIONS
CEA Power Ratings
Power Output . . . . . . . . . . . . . . . .16 watts RMS X 4 channels into 4-ohms @ < 1% THD+N
Signal to Noise Ratio. . . . . . . . . . . . . . 90dBA below reference. (Reference: 1 watt, 4-ohms)
Dynamic Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Watts @ 4-Ohms all channels driven
Frequency Response . . . . .20Hz to 20kHz (-3dB), Auxiliary input used as source reference
Reference Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14.4VDC
CD Player
Signal to Noise Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>90dBA
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Hz to 20kHz, -3dB
Channel Separation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 55dB @ 1kHz
D/A converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-Bit/Ch
FM Tuner
Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5MHz - 107.9MHz
Mono Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12dBf
50dB Stereo Quieting Sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16dBf
Stereo Separation @ 1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>30dB
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Hz to 14kHz, -3dB
AM Tuner
Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530kHz - 1720kHz
Sensitivity @ 20dB Signal to Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30uV
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Hz - 2kHz, -3dB
Auxiliary Input
Input Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . .400mV RMS for 1 watt RMS into 4-ohms
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Hz to 20kHz, -3dB
Input Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10k-ohms
General
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 to 16VDC, negative ground
Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 amp, ATO type
Wire Harness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-pin quick-disconnect
DIN chassis dimensions . . . . . . . . . . . . . . . . . . . . . 2” X 7" X 7" (51mm x 178mm x 178mm)
Specifications subject to change without notice.
Problem Cause Corrective Action
Does not operate
(display does not
light)
No power to yellow wire;
no power to red wire
Check connection with test light;
check vehicle fuse with test light.
Inline fuse blown Replace fuse.
No power to unit Inline fuse blown Check/replace fuse.
No speakers oper-
ate (display lights
normally)
Speaker harness not con-
nected
Connect speaker harness; check
speaker wires.
Not all speakers
operate
Incorrect splices or con-
nections
Check all splices and connec-
tions.
Speaker wires shorting to
chassis ground or to each
other
Check splices, insulate all bare
wires.
Blows fuses Power wire shorting to
ground
Make sure wire is not pinched.
Speaker wires shorting to
ground
Make sure wire is not pinched.
Incorrect fuse/fuse too
small
Install fuse of correct rating.
CD skips too much Receiver mount is not
solid or backstrap is not
secure
Check mounting and backstrap,
tighten if needed.