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Apex DVD Player model AD-1110W

B

Brad

Jan 1, 1970
0
Hi,

I have an Apex DVD model AD-1110W in my shop for service.
Note: I seldom service DVD players. When I insert a DVD or
CD, the message says, "Loading" and after a small delay,
"No Disc".

I cleaned the optical pickup lens even though it looked clean.

When I insert a DVD or CD, the optical pickup slides in and out, but
the disk doesn't spin. I checked the motor for freedom of rotation.
I checked voltages from the power supply and all were good except
+12V & -12V which measured +11.17 & -11.07. I "scoped" all the
voltages to check for ripple or noise, but all were "clean".

Is it possible for a DVD player to check for the presences of
a disc simply by the reflection without rotating the disc?

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active keystroke logger (spyware) in your PC.
 
M

Meat Plow

Jan 1, 1970
0
Hi,

I have an Apex DVD model AD-1110W in my shop for service.
Note: I seldom service DVD players. When I insert a DVD or
CD, the message says, "Loading" and after a small delay,
"No Disc".

I cleaned the optical pickup lens even though it looked clean.

When I insert a DVD or CD, the optical pickup slides in and out, but
the disk doesn't spin. I checked the motor for freedom of rotation.
I checked voltages from the power supply and all were good except
+12V & -12V which measured +11.17 & -11.07. I "scoped" all the
voltages to check for ripple or noise, but all were "clean".

Is it possible for a DVD player to check for the presences of
a disc simply by the reflection without rotating the disc?

I suppose it could check for a disc first then spin it to check compliance.
 
Yes.... the laser checks for a reflection and tries to focus on the
disc, if successful the motor will spin. Disconnect the wires going
to the spindle motor and use a small 9V transistor battery to power
it .... if it doesn't spin, the motor is bad. You can go to the
website for this newsgroup at
http://www.repairfaq.org/
there with some of your search time you will find a wealth of CD
player repair and troubleshooting information.
electricitym
 
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