Troubleshooting; G U I D E - MTX Thunder4122 Owner's Manual

Read this if you wanna be a do-it-yourselfer -- or give us a callat I-8WXLLMTX.
No LED indication
LED on, no output
Output distorted
Balance reversed
Some balance reversed
Bass is weak
Blowing fuses
T r o u b l e s h o o t i n g
No t12V at remote connection
No t12V at Power connection
Insufficient ground connection
Blown power fuse
Volume on head unit off
Speaker connections not made
Gain control on amplifier off
Signal processing units off
All speakers blown
Head unit volume set too high
Amplifier gain settoo high
Speakers wired L t
RCA inputs reversed
Some Speakers wired L t R
reversed
Some RCA inputs reversed
Speakers wired out
of phase
Not using MTX woofers
Excessive output levels
Amplifier defective

G u i d e

Supply t12V to terminal
Supply t12V to terminal
Verify ground connection
Replace fuse
Increase volume on head unit
Make speaker connections
Turn up gain
Apply power to signal processor
Replace speakers
Lower head unit volume
Lower amplifier gain
Wire speakers with correct orientation
Reverse RCA inputs
Wire speakers with correct orientation
Reverse appropriate RCA inputs
Wire with correct phase
Buy MTX woofers
Lower volume
Return for service