Jensen Cochran Posted August 31, 2013 Report Posted August 31, 2013 The other day, my subwoofer suddenly cut out and I traced the issue to my subwoofer pre-outs on my Kenwood DDX-319 head unit. Troubleshooting done so far: No AC voltage comes out of the subwoofer pre-outs on the head unit at all Connecting the sub amp's RCAs to the rear pre-out produces sound from the sub (ruling out that it is my amp or subwoofer) There is no resistance (0 ohms) between my pre-out grounds and the case of the head unit (leading me to believe it is not simply a blown fuse in the head unit) Everything else on the head unit functions as intended My head unit is out of warranty by a couple months. I emailed Kenwood about the problem, but they will most likely give me the run-around and ask a million questions before giving me a repair quote that I expect to be at least $100, something I can't really afford right now with a new semester starting. I have some proficiency in electronics (enough to most likely be able to replace a broken component, if I can tell that it's broken), so I'll probably end up opening the head unit and seeing what I can do. I have never used the amp in the head unit, so it's unlikely that it's a heat-induced malfunction, in my eyes. Any help I can get is appreciated, especially things that would help me repair the head unit, like what components could possibly be broken. Thanks!
n8ball2013 Posted August 31, 2013 Report Posted August 31, 2013 Are they turned on? THERE IS NO BUILD LOG! 1998 Chevy Silverado ext cab Alpine CDA-9887 4 Team Fi 15s 2 Ampere Audio TFE 8.0 2 Ampere Audio 150.4 3 Digital Designs CS6.5 component sets Dual Mechman 370XP Elite alternators inbound! 8 XS Power d3400 6 XS power d680 Second Skin Stinger Tsunami Wiring Sky High A Real Voltmeter not a piece of shit stinger.
Jensen Cochran Posted August 31, 2013 Author Report Posted August 31, 2013 I guess that's the obvious question, but yes, they are turned on. The pre-outs stopped working randomly while I was driving, listening to music. I've reset the head unit to factory settings a few times, which didn't help.
n8ball2013 Posted August 31, 2013 Report Posted August 31, 2013 Double check that they are on. It sounds like the headunit thinks they are off. Try flipping the settings a few times. You didnt touch anything on the deck right? Ive owned a few kenwoods that gettinf the subs on was a pain. THERE IS NO BUILD LOG! 1998 Chevy Silverado ext cab Alpine CDA-9887 4 Team Fi 15s 2 Ampere Audio TFE 8.0 2 Ampere Audio 150.4 3 Digital Designs CS6.5 component sets Dual Mechman 370XP Elite alternators inbound! 8 XS Power d3400 6 XS power d680 Second Skin Stinger Tsunami Wiring Sky High A Real Voltmeter not a piece of shit stinger.
DubNDodge Posted August 31, 2013 Report Posted August 31, 2013 You said you reset the settings on the head unit, have you disconnected your battery to completely reset the HU? I know my X994 was acting up with my USB drive once, it wouldn't read it. So I disconnected the battery and it went back to normal. '01 Dodge Stratass Sealed Trunk Build Log 2008 Honda Fit Sport Build Log On 10/3/2013 at 10:00 AM, ROLEXrifleman said: Anyone who says they knew everything they wanted out of life at 19 can go suck a bag of dicks cause they are lying to themselves or brought up in a cult.
Jensen Cochran Posted August 31, 2013 Author Report Posted August 31, 2013 I didn't disconnect the battery, but I did disconnect the harness from the head unit, which brought it back to the "Initial Startup". Should be the same thing as disconnecting the battery.
DubNDodge Posted August 31, 2013 Report Posted August 31, 2013 Yupp same thing. '01 Dodge Stratass Sealed Trunk Build Log 2008 Honda Fit Sport Build Log On 10/3/2013 at 10:00 AM, ROLEXrifleman said: Anyone who says they knew everything they wanted out of life at 19 can go suck a bag of dicks cause they are lying to themselves or brought up in a cult.
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