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Karavision PRO KP-8800 wont read burned DVD.

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    Karavision PRO KP-8800 wont read burned DVD.

    a friend of mine brought me a Karaoke Machine that was somehow damaged in shipping and will no longer read the Burned DVD that was in it when it was shipped. they swear up and down that it used to read that DVD just fine. The drive was making all kinds of horrible noises and wouldn't read any discs when i started working on it. after cleaning the lens and adjusting the spindle it will read regular CDS now but still wont read any burned CDS or DVDS or even regular DVDs. is this the proper place to ask about this?
    cause its a video karaoke machine... not strictly "audio equipment"
    and the problem is not with the audio or the video, its with the optical drive. ive taken it apart and cleaned the lens, and adjusted the spindle, and played with the pots...still no luck.

    the player is sold in the philipines, allegedly made in korea...
    https://karavision.com.ph/

    im thinking finding a replacement drive might be hard to impossible.
    but what about just replacing the laser?

    its hard to make out in the pictures but i think this is the marking on the laser assembly:
    H6D071F8BRL
    HD-870ALSH

    but of course the D's could be 0's or O's
    the B's could be 8's and vice versa...
    6 could be a G

    first part doesnt bring up anything.
    second part brings up this: https://www.aliexpress.us/item/22518...andl_shipto=US
    the laser assembly looks identical except for the first set of numbers. the other part (sled, motors, gears, board) might all be compatible as well, though the control board for the motor that moves the laser is not the same.
    would it be possible to swap out this laser assembely?
    Attached Files
    Last edited by triplefour; 02-19-2023, 06:43 PM.
    Don't fear the repair...

    #2
    Re: Karavision PRO KP-8800 wont read burned DVD.

    it could be the laser,
    i have seen playstation2's where the laser can read cd's but not dvd's - i think it uses 2 different beams.
    i wouldnt be surprised if the laser is the same in most $20 dvd players

    Comment


      #3
      Re: Karavision PRO KP-8800 wont read burned DVD.

      my friend is going to order the part i linked to and we will all be crossing our fingers that it works


      but maybe i should have a look around my junk pile and see if i can find one laying around first!
      Don't fear the repair...

      Comment


        #4
        Re: Karavision PRO KP-8800 wont read burned DVD.

        Originally posted by triplefour View Post
        but maybe i should have a look around my junk pile and see if i can find one laying around first!
        that is what i was implying

        Comment


          #5
          Re: Karavision PRO KP-8800 wont read burned DVD.

          Had a Sony PlayStation 3 do the exact same thing. It read CD’s but an absolute no go on DVD’s. I replaced the laser twice (first replacement was faulty too), but still works like a champ now and that has been a few years.

          Comment


            #6
            Re: Karavision PRO KP-8800 wont read burned DVD.

            This uses a dual laser for the optical pickup, one for cd and one for dvd
            I believe this is a SF-HD870 pickup on a DVM-34 mechanism

            Comment


              #7
              Re: Karavision PRO KP-8800 wont read burned DVD.

              Boy I've really been dragging my feet on this one. I think I may have found the part tho. https://www.amazon.ca/Portable-Playe.../dp/B08HSWDZ32
              Don't fear the repair...

              Comment


                #8
                Re: Karavision PRO KP-8800 wont read burned DVD.

                https://www.truegether.com/listing.h...5-95663ec4e154
                im having a hard time finding anywhere i can buy this part that will ship to Hawaii.
                i found that here as well as the amazon link they seem to have the part number SF-HD850 listed as well... as if these 2 parts are the same, or compatible? can i widen my search to include items that say SF-HD850 but not SF-HD870 as well?
                Last edited by triplefour; 05-23-2023, 12:48 AM.
                Don't fear the repair...

                Comment


                  #9
                  Re: Karavision PRO KP-8800 wont read burned DVD.

                  ok i think i have found it actually on aliexpress. not sure how i missed it earler.
                  this appears to be SF-HD870 pickup on a DVM-34 mechanism
                  https://www.aliexpress.us/item/3256805163933619.html

                  but now that ive had that thought about the SF-HD850 instead i notice that it is also on aliexpress but about a third of the cost.
                  this appears to be SF-HD850 pickup on a DVM-34 mechanism
                  https://www.aliexpress.us/item/2251832857899140.html

                  can i save some money and get away with the 850??? is it worth it to risk it?

                  i decided to play it safe and not let my dumb idea / cheapness get the better of me. ordered the more expensive part!
                  aliexpress says a month so ill be back then to report
                  Last edited by triplefour; 05-23-2023, 01:52 AM.
                  Don't fear the repair...

                  Comment

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