Question about Audio Players & Recorders
Optical sensor fine and reads disc okay. Opened up case and found that assembly which stabilizes and centers CD would not overcome spring pressure in order to meet disc. Light pressure on this assembly allows it to meet disc and player plays okay or pressing on swinging doors located in CD drawer itself accomplishes this also. What is problem and remedy ?
This has to do with a mini switch inside the door mechanism that it pushes once but with the bounce phainomenon in electric pulses it thinks that you pushed the cd door inside manualy and it tries to close the door. Try replacing this mini switch. this will solve your problem.
Posted on Aug 10, 2007
Well I fixed the problem myself by taking yhe cover off and cleaning the laser with a cue tip and alchohol very gently of course. I guess it was not reading the disc the first time it closed because some foreign object , works fine now
Posted on Mar 04, 2008
Try taking the unit apart it mostlikly jamed or jumped track try re ajusting it that would prob work, another thing is to try messing with the gears that could aslo work
Posted on Oct 24, 2008
Clean the lens of the laser with a cotton swab. Remove the cover, and locate the glass lens at the top of the laser assembly. Pre-wet a cotton swab with glass cleaner and wipe the lens carefully without applying pressure. Use the other end of the swab to dry off and remove any residual dust or gunk.
Reassemble the unit and load a disc. If the problem was caused by dust or smog film on the lens, it should now play without any problem.
Posted on Mar 02, 2009
SOURCE: NAD 502 CD player problem
You can try to release the drawer and get it all the way out. Then turn of the power and carefully push the drawer back inside. Then turn the power on again. This might help!
Posted on Sep 29, 2009
Tips for a great answer:
OPC: Stands for Optical Processing Calibration.
When you see this message in the Information
Display for the Record DeckK, it means
that the laser transport inside the unit is making
the calibrations and adjustments needed so that
the recording process is optimized for the specific
disc in use.
When an unfinalized CD-R or CD-RW disc is
placed in the Record Deck%, the letters
OPCwill flash once the Table of Contents has
been read. This indicates that the unit is optimizing
its circuits for maximum compatibility with
the specific recordable disc in use. the number
and total running time of any tracks that have
already been recorded will appear in the
Information DisplayK, and the appropriate
indicator SPwill light to tell you if a CD-R or
CD-RW disc is in use.
To Finalize a disc, place it in the Record
Drawer%. Once the disc's Table of Contents
information has been read and the OPC process
has been completed, press the Finalize button
[email protected] note that the Finalize Indicator
Uwill begin to flash. Within three seconds,
press the Select button9*and note that
the Finalize IndicatorUwill stop flashing.
The Finalization process will take up to two
minutes, depending on the length of material
recorded on the disc. During the Finalization
process the Record Deck will not accept any
Usually answered in minutes!