SOURCE: Aiwa NSX-V70 will not recognize
Hi there. Found your post as I was looking for an answer to the same issue with my NSX v70 about an hour ago. I'm pleased to say that I found a solution on the web and mine is now working fine!
Try this address below and follow the instructions. The knob you need is black, with some white numbers on and can be seen from the back of the unit once you have removed the black casing and the silver back. Quite easy when you know how! Good luck.
http://www.kuro5hin.org/story/2004/3/24/45212/6874
SOURCE: Aiwa NSX-SZ10, reacts to all
Manually cleaning the lens
To locate the laser lens, look
around the door or drawer of the DVD player and you will see a small circular
disc, which is often called the turntable or disc platter. Right off the edge
of the platter you should see a small clear lens. There are some manufacturers
that have had problems with the lens, depending on the age of the unit. In
these problem players, moving the unit to a different location, turning the
unit upside down, or sometimes even without moving the unit, the lens can
become detached from the laser assembly and floats around inside the unit. You
can re-glue it back with a little crazy glue, BUT it must be perfectly
centered, and without getting any glue on it. So, if you don’t see the plastic
lens, but instead see the laser pick-up assembly, look around for the lens
inside the unit and glue it back on.
To clean the lens you must use very
little pressure. Take a cotton swab and barely moisten it with plain,
non-scented, or oily type alcohol. In a swirling motion, very gently rub the
lens until you’ve covered it entirely. Then repeat using the dry end.
If the cleaning didn’t help, don’t despair just yet. You can see if there’s
a problem elsewhere in the unit by using a few simple tricks and tips.
First thing you want to see if the unit’s laser is in good working order.
This method isn’t foolproof, but most of the time works admirably. When you
insert a disc, see if you can look up underneath where the disc sits on the
turntable. Observe the laser lens going up and down. If the lens is trying to
focus, that’s good! After a few seconds of the lens trying to focus, the
platter should start to spin. On almost every CD/DVD unit I've encountered, the
unit won't spin unless the laser has properly focused on the surface of the
disc. If the unit spins up and and then shuts down, you should check and make
sure the laser pick-up assembly slider mechanism is working without any
obstructions and that the small chrome rail that it slides on is slightly
greased. Don’t go overboard with the grease though, as too much can cause all
sorts of problems.
The slider mechanism, depending on the age of the unit and the manufacturer,
consists of the small chrome rail, a drive motor, a small gear assembly, and
(in some units) a small belt that drives the slider unit via the motor. This
small belt causes all sorts of problems. If the belt is broken or slipping, it
can cause skipping, dropouts, or simply no start up at all. Also, if the belt
breaks in the middle of the disc, the drive mechanism gets hair or dirt wrapped
up into the gears, or the pick-up assembly doesn’t return to the start position
(called home), the unit will (99% of the time) refuse to release the disc, causing
it to become stuck inside the unit. There’s a little micro or leaf type switch
located at home position that sometimes gets dirty or breaks and, causing this
problem also.
If the disc starts to spin slowly and doesn’t come up to speed, the spindle
motor that’s attached to the turntable platter is a common problem. There could
also be a problem with the spindle motor driver controller IC or the power
supply regulator that supplies voltage to the driver IC. If the disc starts to
spin and then spins really fast, or stops and starts to spin backwards, your
problem is the laser pick-up assembly or the servo control circuit. If you
continue to have problems after cleaning and checking the other things listed
above, you may have a problem with the player's alignment. Of course, one of
the problems you'll face checking alignments on a DVD/CD player is that you’re
going to need to use an oscilloscope on most of them. If you have the proper
tools and equipment, the first thing to look at is the RF pattern of the unit
while its playing. It should be a sharp and clear pattern. If it's dull and
smeared, then the laser could be weak.
Also, in these units are very critical alignments called the focus/tracking
gains and offsets. When these alignments are off, it can often cause
intermittent troubles. As the unit ages and parts change value, so do these
alignments, and will need to be checked. In my time as service technician
repairing DVD/CD players, 65% of the laser pick-up assembles I have tested were
good and only needed a small adjustment. Today's technology makes it unfeasible
for a shop to hook up a DVD/CD player, and even some recorders, to their
equipment and make these adjustments because of the cost involved.
Hope this may help;
Regards,
VOTIT
DON'T TO FORGET TO RATE
SOURCE: CD Player tray will not rotate or open or close - no power
my cd player will open and rotates but will NOT play, can anyone help me?
SOURCE: I have two aiwa nsx-d737 stereos with basically
Hallo! Mayby you can sell my one of your aiwa nsx-d737 stereos? I've been dreaming to get it for a long time, but I can't find it nowere in Russia. I ready to pay all transportation costs and expances. May I also ask you to write me back on e-mail [email protected] even if you can"t or do not want to sell it?
A milliomn thanks))) Olga
SOURCE: aiwa nsx-999 display and cd changer problems
I had a similar problem with my NSX-999. For CD, u need to clean the laser or buy a new cd-laser pickup KSS-210A.
For dim display, replace capacitor C107 and C108 in the mainboard if u know how or take to a repair shop and ask them to replace those two capacitors. It soled my problem
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