Question about Panasonic CQ-C3301U CD Player

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Whining noise @ acceleration?

I just intalled a new Blaupunkt CD/receiver head unit to replace my stock Bose cassette/receiver in my 1990 Acura Legend LS. I have everything working, except when I accelerate now I hear a whining noise coming for the speakers -- the faster the acceleration, the higher the pitch. I can drown it out by turning up the volume, but it's there if I turn the volume to 0 (and I can hear it until I make the stereo pretty loud). Anyone know what might cause this? Thx Scott Scott Mandell All Opinions Are My Own! System Administrator, AOL, Inc. # ok, i just installed a head unit - Panasonic c3301u and an audio vox amp and some cheap subs. I ran the power wire down the right and the RCAs and remote turn on wire to the left. ok amp turns on, headunit is on, buit no sound from the subs. yes, they work they went from one car to another.... but when i turn the volume up the "whining sound" start and doiesnt end til either the head unit is off or the car is off. I don't know what it is. i have checked my wires twice.... thanks bob

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  • Bstric06 Jan 30, 2009

    i just redid, my ground for the amp, i sanded the metal with emory cloth and doubled checked the connection on the amp.



    And I still have no sound in the subs......



    this is a brand new 08 corolla.. y would i change the plug wires...

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Changed oil, but still have a compression & whining noise on acceleration.

Posted on Nov 28, 2009

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  • 146 Answers

You have a bad ground somewhere. You also may nneed to replace your spark plug wires. The deck is getting interference from the engine due to a grounding problem.

Best of luck

Posted on Jan 30, 2009

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Posted on Jan 02, 2017

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The Bose system in the Z is wired to control the entire car's speakers. Each speaker has its own amplifier, and the OEM head unit puts out a line-level signal to each amp. Your Clarion unit puts out speaker-level signal (in effect, an amplified signal), into the Bose amps, and it's probably overdriving them and putting them into shutdown.

Your best bet is to replace the Bose speakers with aftermarket speakers meant for a speaker-level drive (which is what I did in my Z, and never once regretted it). If you do so, you'll need to run new wires to the speakers, or if you use the OEM wiring, you'll need to unplug the amps and run the wires from the amp harnesses directly to the new speakers. I think there is an adapter harness you can use that will tap into the line-out jacks on your Clarion, so that a line-level signal can be sent to the Bose speakers - I'd do a google search for "Metra harness 300zx" or something along those lines (Metra makes the lineout harness adapters - I use one in my Audi).

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Hi try unpluging both the cd and the head unit from power for 30 mkins or more. this should reset the system. plug the head unit in 1st then the cd.

regards

Mark
www.blueice-electronics.co.uk

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Dear needhelp5246,
What you need is a screw driver not a sledgehammer. Open the bottom plate of the system and eject the cd magazine manually. Hope this solve your problem.
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2nd question


are you determined to try to fix the CD unit ?
it could be taken apart and the problem found with dificulty unless it is obvious from the outset and thus resolved, ( i suggest you get a new cd 20 or a second hand replacement or remanufactured unit, all available from bose or try ebay etc. they are old now and not very expensive.

PS the reason the unit is sticking is beacuse it is most likely the cassette is damaged ( you can buy a replacement cassette, part number is on the side (llook up on intenet) and identical generic and after-market ones are avaialbe as the cassette is a standard part.)
second most likely cause is something caught in the cassets insertion mechanism which will involve opening cd 20 - not recommended to open this unless you are determined to do so and spend lots of time messing with springs andmotors and belts etc.

my advice..... get a replacement cassette first (borrow a mates one first to check) then replace cd 20 its not going to cost too much.

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Dvd not ejecting


which bise system do you have ?

is it a lifetstyle system with a 6 disk cd changer ?


if so .

the disk being a dvd and being label down is in significant, the real proble is that the cassettte is mechanislly jammed with the disk as a wedge between it and the cd player part.

dissasembly of head unit may be required if you cant jam something into the cassette unit and forceably remove it. okay your disk may be scratched and the cassette may even be damaged, you could even try driving a screw into the cassette on the left hand most side to give you a bit of something to lever with. but that is your only option. a new cassette will probably be required. and dissasembly is likely especially if it feels like forcebaly removing the cassette will leave bits of broken cd player or dvd disk inside the head unit.

i should point out that if it is not a cd 20 model with a 6 disk cd cassette, do not attempt to do as i have mentioned above.

in either event i can't warranty your actions as a result of my suggestion. but i can safely assure you that a bose shop will definately get it fixed for you, and you can probably contact bose direct yourself who will definitley fix it for you. for how much howevr i am not sure.
you could alsway decide to scrpa the head unit and invest in a second hand one sourced on the internet.

sorry for your troubles, but i know how you feel when my kids insert fist fulls of coins into my car cd player. !!!!

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