Amp Not Working

[oren09]

Hello. I am having a problem with my subwoofer amp.

My setup:

JVC KD-HDW10 head unit, sub preamp output

(Getting old but has HD Radio and rear aux in)

SONY Xplod XM-502Z amplifier 2/1 channel 250W max

($20 Craigslist deal. Had a few months)

10" Visonik sub

(Friend gave it to me)

Also 4x 4" Kicker coaxials running off head unit amp.

The other day on a long drive, my sub stopped working. I assumed the amp overheated and shutdown because the temperature was over 100 degrees and my car does not have A/C.

However, the sub has not worked since then.

I tried troubleshooting yesterday and the amp turns on (status light is green and it warms up) but there is no output. I tried wiring the amp using the speaker level inputs but still got nothing.

I am not sure how to test if the radio is outputting, if the amp is amplifying, or if the sub itself is dead.

I have tried different RCA cables, I've cleared all radio settings and re configured, checked and redid all amp wiring.

Today I took the amp apart and went over both sides of the board. I do not see any burned, melted, blackened components nor does it smell.

Are there any other things I should check? I really miss my bass.. 4" speakers have none at all.

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[LosIsATool 5,000+ posts]

Check ALL wiring and fuses.. Cut your losses