CD player switching off at hi volume

[AL]

jesus its just not my week, ive just got a new alpine cda 9857r, as you know im also looking for brackets to install it , lol

but have come up with a bigger issue, at more than half volume on bassy songs "Korn" for instance, the unit keeps switching off and turning back on again, it happens a few times and will come back on a lower volume...... this is wrecking my head

the heat sink at rear of unit get extremely hot very quickly, surely this cant be right, i wired it up ok, it seems to be earthed right, is there something im overlooking.

i know that this unit is built with a temperature reset point builtin, but surely theres a problem with the player ?

any help appreciated, i got it in halfords and cant get back there til next saturday at earliest, if its something simple ive overlooked please feel free to call me a dumbass, lol

[Muad_dib77]

Sounds like the amp in your unit is overheating - there is a fair bit of room behind the radio-slot in the fto - but the air isn't really moving back there.. Maybe try sticking a wee fan back there..

But I'd personally take the radio back - I'm sure it's not meant to overheat..and if they give you the aul "It's not designed to play at max volume for an extended period of time" tell them that the product has a design flaw and you want your money back..then proceed to take your business elsewhere...

[mick_dont_surf]

would it have something to do with the music you are listening to.
maybe try something from the Sound of music or dirty dancing

[Muad_dib77]

How about Kenny Loggins Danger zone?? You know the one from Top Gun where yer man Tommie Crusie is Riding his bike...

found the lyrics and all..Get singing you lot..


Revvin' up your engine
Listen to her howlin' roar
Metal under tension
Beggin' you to touch and go

Highway to the Danger Zone
Ride into the Danger Zone

Headin' into twilight
Spreadin' out her wings tonight
She got you jumpin' off the track
And shovin' into overdrive

Highway to the Danger Zone
I'll take you
Right into the Danger Zone

You'll never say hello to you
Until you get it on the red line overload
You'll never know what you can do
Until you get it up as high as you can go

Out along the edges
Always where I burn to be
The further on the edge
The hotter the intensity

Highway to the Danger Zone
Gonna take you
Right into the Danger Zone

Highway to the Danger Zone

http://www.youtube.com/watch?v=9BQGsgAh ... %20loggins

http://tinyurl.com/n8r2d


YEAH!!! 2x 12" in the back - elbow out the window... Cap on back to front.. You're SORTED!

Maybe change your car from an FTO to an old astra 1.0 (get some GSI or Turbo stickers to go with it..)

[AL]

jesus christ, cheers for all the help ,lol, i guess its now down to me only listening to bros and s club 7 from now on,lol

but seriously,i bought it back to halfords today, left work early too get there, young lad was very helpful, said no problem to money back, tried it in store and agreed heat was a little hot, i decided to take a chance on a new one , everything was going well ,i got home and guess what , it started acting up again
was too to late to to get back for refund, so i said f*ck it and went for a long drive, i tried it again and noticed something odd, it only seem to die when i stopped at light, etc.

could this be insufficient power from battery

[Muad_dib77]

What does your volt meter read? Does it drop significantly when you stop the car?
Also I know this mightn't be to your liking but try sticking up a stupid old dance tune..Like Mr. Vain or Pump up the Jam... something that goes..bump bump bump bump...do you have lights dimming in time to the beat?
Also what's the max wattage of the unit? You running a bunch of amps as well? Have you got proper leads in there or are you running of the standard harness?

[AL]

will hake to check volt meter tomorrow, sorry NO pump up the jam or mr vain, lol. GF has plenty of ramsteinn, also my prodigy and linkin park cds should hit those base notes
head unit throws out 60 watts x 4, no amp, its only running 4 pioneer speakers ( 160watt @ 4 ohms), these are within suitable limits for the player, all wiring is standard and ISO connectors are standard mits issue, even got a spare one of them to be sure.

id imagine standard wiring would be up to running this system, head unit sounds great , but rest of system aint exactly pimp my ride spec, lol.
would be surprised if standard wires cuoldnt cope with this

[Muad_dib77]

Voodoo People and Break & Enter should be good tracks for the test Rammstain maybe less so..Although Asche Zu Asche & Wilterwein (spelling??) might be good..

Ps. If you don't have Live aus Berlin you haven't lived the Rammstein experience yet MAN IT'S AWESOME!

Wiring should be happy to cope with 4x160watts max..

Very strange! - did you check reviews of this particular headunit prior to buying?

[kevinod]

head unit throws out 60 watts x 4, no amp, its only running 4 pioneer speakers ( 160watt @ 4 ohms), these are within suitable limits for the player, all wiring is standard and ISO connectors are standard mits issue, even got a spare one of them to be sure.

That was going to be my guess, that your speakers were the wrong impedance for the head. Impedance is a strange thing to work with... For example if I have 2 8 ohm speaker cabs in parallel, they work at 4 ohm. A 4 ohm cab and an 8 ohm cab in parallel work at 2.67 ohm.

Rough guide to calculating it - http://www.electronixwarehouse.com/education/speakers/impcalc.htm

If your impedance is too low, your radio would be getting overloaded trying to put the power down to the speakers. Guitar amps and the like usually have a safety mechanism built in to just cut out below a certain impedance, maybe thats what is happening your Alpine?

[Muad_dib77]

That makes sense cause the loader you play the closer to 0 the impedance gets - and if impedance reaches zero something has got to give..(AFAIK!)...

Should say in the documentaion for your radio if it 8,6 or 4 ohms...

[kevinod]

Try running with only 2 speakers, not in parallel and see if that helps maybe?

[pergau]

It sounds like the units are overheating it may be that there is a little airflow behind it when the car is moving but it overheats when you stop.

Have you anything in the second slot in the dashboard - I'm assuming that it is a single din unit. you could remove the blanking plate and see it this helps the airflow. also you could try a computer fan to move the air away under the dash. If you use one thet is 12v it might work.

[AL]

i reckon a battery ungrade will solve the problem, i went to icetronix, WONT EVER DEAL WITH THIS GUY, WHAT AN IGNORANT ASSHOLE!
he reckoned he could give me an upgrade battery for €170, then when i asked for some advice , his pig ignorant reply was "we dont fix other peoples problems", i calmly bit my lip and walked out.

my current battery is rated at 45AH, ive been offered another upgrade tomorrow at local motor factors of a battery rated at 60AH for €62, not bad hope this sorts problem once and for all, also going to fit the larger battery terminals,

lads it had nothing to do with lack of air to cool heatsink as i ran stereo from passenger seat sometimes and on a box on the floor ac was put on full , NO DIFFERENCE WAS FOUND .

ive contacted a few audio shops and they reckon, my speakers running at 4 ohm impedance should cause no problems.

thank for all your thoughts, fingers crossed for tomoro