HU problem

Cartman · 08-15-2003, 05:30 PM

My HU starts skipping when I turn up the volume when playing a CD but just for CD's, for radio I can turn it up as loud as I want and no problems (for cd's around volume 12 and over it skips, radio I tried it at volume 18 and it was good). I am using a 4 channel amp running off the RCA's so the HU's amp isn't even working.

This problem happens even if I'm sitting in park in my driveway and can't be a power supply problem because the radio doesn't cause it.

Any ideas.

izackary · 08-15-2003, 11:34 PM

possibly vibration feedback? if you have bass going thru the truck, maybe the head unit isn't in tight, and it vibrates with bass notes?

jeff96 · 08-16-2003, 07:39 PM

First off 12 level on a cd player and 18 on the radio will be about the same sound becuase cd is much cleaner. But what is the gain on your amp, possibly its set too high. Try turning it down and then see what happens.

wilson_nick · 08-16-2003, 07:55 PM

what model is the hu? sometimes the laser gets out of alignment and the slightest bumps cause it to read wrong or "skip" do you have some kind of warranty on it?

Cartman · 08-17-2003, 12:15 AM

The HU is a pioneer premier DEH 330, it is almost 3 years old so no warranty. The gains on the 4 channel amp is half way up and the sub amp is maxed out on the amp but I use a EBC to adjust it from the front.

I'll try checking the screw to make sure it is being held firmly in place, if that doesn't work i'll disconnect the subs and see what happens then.

Cartman · 08-17-2003, 06:59 PM

The HU seems to be held down well, all the screw are tight, when driving if I hit a bump it will skip but this sounds different. I've turned the subs off and it still did the same thing.

I've been planning on getting a capacitor so if it is a power problem that might help, I'm also getting a few fans because the amps are getting warm (new box/amp rack doens't allow for much cooling)

08-15-2003, 05:30 PM	#1
Cartman Wannabe Elite Explorer Waterloo, Ontario '96 Sport Join Date: Aug 2001 Posts: 537 Vehicle Specs (Original Poster)	Pioneer HU problem My HU starts skipping when I turn up the volume when playing a CD but just for CD's, for radio I can turn it up as loud as I want and no problems (for cd's around volume 12 and over it skips, radio I tried it at volume 18 and it was good). I am using a 4 channel amp running off the RCA's so the HU's amp isn't even working. This problem happens even if I'm sitting in park in my driveway and can't be a power supply problem because the radio doesn't cause it. Any ideas. __________________ Pioneer Premier DEH P-750MP HU, RF FNX 2514 components, Pioneer 6x8 2 way speakers, MTX 4244 amp, MTX 6500D, MTX 9512-44 Subwoofer, Stinger wiring, Streetglow interior neons. Westin Sportsmen Grille Guard Cartman's Website Last edited by Cartman; 08-15-2003 at 11:14 PM.

08-15-2003, 11:34 PM	#2
izackary Wannabe Elite Explorer AZ '06 Mazdaspeed6 GT Join Date: Dec 2002 Posts: 2,033 Vehicle Specs	possibly vibration feedback? if you have bass going thru the truck, maybe the head unit isn't in tight, and it vibrates with bass notes? __________________ 2006 Mazdaspeed 6 GT AEM cold-air intake, HKS SSQV bypass valve, 2.5" race pipe...246/305 awhp/tq Sparkling white like a toothpaste commercial!

08-16-2003, 07:39 PM	#3
jeff96 Wannabe Elite Explorer Fayetteville, NC 03 Ninja 636, 96 Ex Sport Join Date: Jun 2003 Posts: 838 Vehicle Specs	First off 12 level on a cd player and 18 on the radio will be about the same sound becuase cd is much cleaner. But what is the gain on your amp, possibly its set too high. Try turning it down and then see what happens. __________________ Those are just extra parts honey...don't worry about it.....

08-16-2003, 07:55 PM	#4
wilson_nick Wannabe Elite Explorer Sacramento, CA 1994 Sport Join Date: Mar 2003 Posts: 383 Vehicle Specs	what model is the hu? sometimes the laser gets out of alignment and the slightest bumps cause it to read wrong or "skip" do you have some kind of warranty on it? __________________ FOR SALE: 1994 Explorer Sport 5-spd/war 153-AAL-Poly Coil Spacer K&N open element-BFG AT/TA KO 31X10.50/15 15x8 rock crawlers Pioneer DEH-7600 poineer 6x8 speakers NEW: Warn Manual Hubs-Pro-Comp ES9000-ball joints, tow package, alignment, thermostat, headlight switches, rotors, pads, shoes, drums, e brake cable

08-17-2003, 12:15 AM	#5
Cartman Wannabe Elite Explorer Waterloo, Ontario '96 Sport Join Date: Aug 2001 Posts: 537 Vehicle Specs (Original Poster)	The HU is a pioneer premier DEH 330, it is almost 3 years old so no warranty. The gains on the 4 channel amp is half way up and the sub amp is maxed out on the amp but I use a EBC to adjust it from the front. I'll try checking the screw to make sure it is being held firmly in place, if that doesn't work i'll disconnect the subs and see what happens then. __________________ Pioneer Premier DEH P-750MP HU, RF FNX 2514 components, Pioneer 6x8 2 way speakers, MTX 4244 amp, MTX 6500D, MTX 9512-44 Subwoofer, Stinger wiring, Streetglow interior neons. Westin Sportsmen Grille Guard Cartman's Website

08-17-2003, 06:59 PM	#6
Cartman Wannabe Elite Explorer Waterloo, Ontario '96 Sport Join Date: Aug 2001 Posts: 537 Vehicle Specs (Original Poster)	The HU seems to be held down well, all the screw are tight, when driving if I hit a bump it will skip but this sounds different. I've turned the subs off and it still did the same thing. I've been planning on getting a capacitor so if it is a power problem that might help, I'm also getting a few fans because the amps are getting warm (new box/amp rack doens't allow for much cooling) __________________ Pioneer Premier DEH P-750MP HU, RF FNX 2514 components, Pioneer 6x8 2 way speakers, MTX 4244 amp, MTX 6500D, MTX 9512-44 Subwoofer, Stinger wiring, Streetglow interior neons. Westin Sportsmen Grille Guard Cartman's Website