How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Pete Your Own Question
Pete
Pete, Engineer
Category: Electronics
Satisfied Customers: 17404
Experience:  Over 16 years of experience in the Electronics and IT industries.
30970729
Type Your Electronics Question Here...
Pete is online now

Richard, i have a Pioneer dvd/cd receiver c/w surround sound,

Resolved Question:

Hi Richard, i have a Pioneer dvd/cd receiver c/w surround sound, is awesome but stops /freezes after approx 1hour of playback ?? for no reason, any help would be appreciated thanks Jeff
Submitted: 1 year ago.
Category: Electronics
Expert:  Pete replied 1 year ago.
Hi Jeff,The receiver may be overheating if it stops after approx. 1 hour.Try opening it up and use a vacuum cleaner to remove any buildup of dust from inside the receiver.Then try playing it again and let me know if it works for longer?Pete.
Customer: replied 1 year ago.
Hi Richard, i've eliminated the overheating possibility,.. by trying to play the last half of the DVD, from cold.. it will not play the last half of any DVD, just freezes the picture then resorts to stop?? ... if any extra help it is a PIONEER XV-DV303 approx 15yrs old. .. the picture and sound quality is still excellent.
it will not let you select in the menu, or play any chapters .. in the second half of any DVD .. it just freezes, .. you can hear a quiet clicking sound? prior to it resorting to STOP!! .. It doesn't mater if it's a film or music dvd, you cannot play the latter half of the dvd ? .. Cheers Jeff
Expert:  Pete replied 1 year ago.
Hi Jeff, Good work.. this means that the problem is happening when the reading lens tries to move towards the centre of the disc.Try moving the lens by hand to check if it can move freely. You may need to apply a small amount of lithium grease to the mechanism to help it move freely.If the lens is able to move freely by hand without any obstruction, then the motor may be faulty. Pete.
Customer: replied 1 year ago.
Hi Pete, i have only just been able to take the cover off and have a look, the mechanism seems free, and i have added a small amount of lithium grease as well, no change? .. the laser reads from centre, to the actual edge of disc, at approx half way thru dvd ?? .. then freezes and stops? the motor seems to work and spins fine?
Expert:  Pete replied 1 year ago.
Hi Jeff,
Which motor did you check?
The spindle motor that spins the disc should be fine, however there is another motor that moves the lens - does it seem ok?
Customer: replied 1 year ago.
Yes motor seems fine ? Lens moves ok ?
Expert:  Pete replied 1 year ago.
Is this when the tray is in-situ within the receiver, or has it been partially disassembled?
The key is to look for any mechanical obstruction that may be preventing it from moving normally within the receiver.
Customer: replied 1 year ago.
All in- situ Pete, .. Put in a random DVD, and it plays thru?? ...have now noticed, Others/most stop at the outer edge of the disc .. same type of disc same format etc .. laser tracks to the edge of disc, then starts tracking back to centre, on disc that plays thru? ... Discs that just freeze/ stop are when the laser reaches the outer edge of the disc?? ... (freezes then goes to stop)
Expert:  Pete replied 1 year ago.
Is there any pattern with the problem discs -
e.g. are they all discs that you or someone else has burned, or are they professionally made discs?
Customer: replied 1 year ago.
ALL .. Professionally made, shop bought DVD's ??
Expert:  Pete replied 1 year ago.
Hi Jeff,
In that case, it seems the system is not able to read the discs correctly.
Assuming all discs are clean, this indicates that either the reading lens needs cleaning, or the laser emitter is failing and is not emitting a strong enough laser beam.
Have you already tried cleaning the lens thoroughly?
You can wipe it with a lint-free cloth, lightly soaked in alcohol.
If that doesn't help, then the laser is not working correctly. It may be that the laser circuitry is overheating or going out of spec after a period of playback due to a faulty component, however troubleshooting this at component level would be very difficult.
Pete.
Pete and 3 other Electronics Specialists are ready to help you
Customer: replied 1 year ago.
Hi Pete, yes the lens is clean, .. so i think we have gone as far down this route as we can, it's going to have to go in to a repair shop ...:-/
Many thanks for your patience and assistance,
Cheers
Jeff

Related Electronics Questions