MXR42 OPERATION
Troubleshooting
Problem | Cause | Action | |
| Yellow wire not connected or incorrect voltage | Check connections for proper | |
Unit will not turn on | Red wire not connected or incorrect voltage | voltage (11~16VDC) | |
(no power) |
|
| |
Black wire not connected | Check connection to ground | ||
| |||
| Fuse blown | Replace fuse | |
Unit has power | Speaker wires not connected | Check connections at speakers | |
One or more speaker wires touching each | Insulate all bare speaker wires from | ||
(but no sound) | |||
| other or touching chassis ground | each other and chassis ground | |
| Yellow or red wire touching chassis ground | Check for pinched wire | |
Unit blows fuses | Speaker wires touching chassis ground | Check for pinched wire | |
| Incorrect fuse rating | Use fuse with correct rating | |
|
| Device capacity must be less than | |
"ER" appears | USB or SD card compatibility issue | 16GB. | |
on display | File system is incompatible - it must | ||
| |||
|
| be FAT or FAT32. |
FM Tuner
AM Tuner
General
Specifications
Tuning range:
Usable sensitivity: 10dBf
50dB quieting sensitivity: 25dBu
Stereo separation @ 1kHz: 40dB
Frequency response:
Tuning range:
Usable sensitivity: 35dBu
Frequency response:
Speaker output impedance: 4~8 ohms
Line output voltage: 1.5 Volts RMS
Fuse: 5 amp AGC
Dimensions: 7" x 2" x 4.2" (178 x 50 x 107 mm)
Design and specifications subject to change without notice.
CEA-2006 Power Standard Specifications
(reference: 14.4VDC +/- 0.2V, 20Hz~20kHz)
Power Output: 5 Watts RMS x 4 channels at 4 ohms and < 1% THD+N
Signal to noise ratio: 60dBA (reference: 1 watt into 4 ohms)
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