Stock Radio = Loud...Stock CD Player = Quiet!! HELP

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Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby awolo » Wed May 02, 2012 5:33 pm

Whats up guys.

So my Alltrac still has the stock radio/cd/tape in it.

Now the Radio works great, is loud, etc, etc.

But when you put a CD in, you can barely hear it, even turned up all the way.

My questions:

1. Is the unit no longer good?
2. Do I have a blown fuse somewhere, thus not allowing the CD portion to be loud? (if thats even possible)

Any help is greatly appreciated.
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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby WarTowels » Wed May 02, 2012 5:59 pm

Have you tried multiple CD's?

-Towels
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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby awolo » Wed May 02, 2012 6:20 pm

That's a damn good point. I was using a burned CD.

BRB.
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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby BoostedBlueToyotas » Wed May 02, 2012 11:48 pm

Good luck, its probably not the CD. The system 10 is notorious for low output on the
CD player (and sometimes the radio). At one time there was a writeup on this on the
old site involving replacing burned capacitors in the radio itself. I think I have the post
saved as a text file somewhere but its definitely your head unit :(. I tried fixing one of
my radios that had the problem and quickly sent the pieces to a repair shop that fixed
the radio for $300 :(
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Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby celigts » Thu May 03, 2012 1:24 am

Was thinking it was an unpowered system but since it's literally all stock my opinions out lol
91 Celica Alltrac - Parts pile pending instal :P
3SGTE project motor very slow
Intake/Heat shield project slowly moving
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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby sMARTINside » Thu May 03, 2012 7:45 am

My stock head unit was defective. It did that. It was almost always quiet on the CD player, but sometimes, it became loud. By replacing the head unit for another stock one, I fixed the problem.
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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby BoostedBlueToyotas » Thu May 03, 2012 11:59 am

What I have in one of saved files :





Posts: 504
wrong wrong wrong...don't toss or replace yet
« Reply #11 on: Jul 21st, 2002, 5:09pm » Quote Modify

--------------------------------------------------------------------------------
Guys:

The system 10 and other Toyota double din head units all suffered from a common
flaw in the past. Toyota cheaped out on the capacitors used in the deck, the caps
went bad slowly, and things like left channel playing softer than right channel
or CD playing softer than tuner started to occur. The fix is not tough, nor does
it have to be expensive. However, if you've never worked with electronics before,
make sure you find an A/V repair place that can do it. The parts cost a matter of
a few bucks, the labor shouldn't be more than $25 or $35. And FWIW, the System 10,
when working right sounds pretty good. It certainly sounds better than spending
$300 on a headunit you don't need. Especially when for $300 you could buy a new
Aussie Dp....but that's another story.

++++++

Perform this at your own risk. You need to get the entire head unit out of
the dash and CAREFULLY open up the CD player. You'll have to take the
entire contents out of the metal shell because the circuit board is on the
bottom. CAREFULLY (there are lots of delicate wires to pop off) remove the
circuit board from the unit - you'll need to unplug several plugs (look at
the way they separate so you'll know how they're supposed to go back on)
and unscrew a heat dissipator at the back right corner (be sure there's
enough thermal compound the back of that dissipator).

The capacitors in question are in a loose group at the back left of the
board. They are red 4.7 mF, 25v capacitors about 3/16 inch in length,
maybe 1/8 in diameter, and there are six of them. It is safe (as I'm sure
the electricity-savvy know - I didn't) to use a larger voltage capacitor (I
used 50v), as long as you can make all six of them fit. I would bother
asking for them at Radio Shack - try a more industrial-type electronics
store, like Shields.

That's about it. Put the thing back together, reinstall it, cross your
fingers, and turn the key. Your CD player should sound like new.


Tim
tim @ gtfour.com
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1993 MR2 turbo - blue/black leather 59K TOTALLED/PARTING OUT
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2006 Mini Cooper S JCW Space blue/Silver roof 39k
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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby awolo » Thu May 03, 2012 2:13 pm

I appreciate the information guys.

But I think it would be easier/cheaper to replace the entire head unit with a new one anyway.
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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby BoostedBlueToyotas » Thu May 03, 2012 2:32 pm

True, but now you have to find the Autoleads adaptor harness to reuse the amp and door
speakers in the alltrac (for 90 and 91 tracs at least). If you dont then you loose the
8" door speakers.
Tim Plessing
Columbia, MD

1990 ST185 - blue/blue cloth 152K-SOLD
1993 MR2 turbo - blue/black leather 59K TOTALLED/PARTING OUT
2006 Acura TSX - black/black 6 spd
2006 Mini Cooper S JCW Space blue/Silver roof 39k
2006 Mini Cooper JCW Silver/black roof 34k
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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby awolo » Thu May 03, 2012 2:39 pm

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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby underscore » Thu May 03, 2012 4:06 pm

^ just be sure your new deck has front & rear pre-outs.
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It's for sale! http://www.alltrac.net/phpBB2/viewtopic.php?f=64&t=52181
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Re: Stock Radio = Loud...Stock CD Player = Quiet!! HELP

Postby awolo » Thu May 03, 2012 5:35 pm

underscore wrote:^ just be sure your new deck has front & rear pre-outs.


Yes. Thank you for that. I'm not to good with all this electronic talk. ha
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