After placing a new laser unit (KSS-240A) the cd-palyer will not play any cd's. Putting back the old laser units will let the cd player read the cd and play it, although it skips over the disc from time to time.
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Re: New laserunit won't work
You seem confident enought to take it apart, have you tried cleaning the runners that the laser runs backward and forward on. Some times they collect dirt/dust and the laser can't move smoothly so it jerks and skips.
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hi, You have to check the laser pickup unit of you dvd player. In your dvd palyer the laser pickup unit is faulty. There are two lasers in DVD players laser unit. One for reading the DVD and the other for reading the CD. In your player the DVD laser is faulty. As it is one module you have to replace the laser pickup unit as a whole. You will get it from any electronic spare part shope near to you. As a whole i mean Normally laser pickup units come with its mechanism like in the picture . May have slight difference with your one. picture is only for reference. Its part number will be written on the bottom side of the laser unit. you have to take the laser unit as sample when you are going to buy the same. If it is reading cds it is sure that the laser pickup is faulty. Its a regular complaint to dvd palyers. To replace the laser pickup you have to remove the cd loader and have to remove connections to it. ok
Open the unit and look inside at the laser assembly...It should have a number on the assembly near where it plugs in...it may have a "KSS-XXX" number on it( where xxx is numbers). There is an electronics company we deal with that sells all sorts of lasers for cd/dvd unit...find this number and you can go to mcmelectronics.com to see if they carry the laser...it is very easy to install, but you will need to remember that there is an area on the new laser where they short out the laser assembly with a solder bridge( they do this to keep it safe from static discharge). You will need to remove this solder bridge before using. Replacing the laser itself is very simple...usually thewre will be a couple of rails that the laser rides on and one (or both) will come off with a clip. Simply slide the old laser off..plug in the new one...remove the solder bridge(as mentioned above)..and install the new one back on the rails.
you didn't say which "ES" model of player it is but i assume it has the KSS-240A laser pick-up, or something very similar. i've repaired so many sony cd players i've lost count and 90% of them have been down to the same fault you describe.given the age of the player the most common cause of skipping is hardened grease on the laser sled and the drive gears which causes resistance in laser movement hence the skipping. try clean as much of the old grease off the sled & drive gears as possible and relubricate. i've used a drop of light machine oil in the absence of a light grease which has made lasting repairs. but run only a small drop along the sled taking care not to drop any on the laser itself. if of course you have any light grease then i would use this but not too much. hope this helps?
i thing its a laserunit you need open that dvd and try cleen laser,but very very easy,its a little pot on back laserunit its can be set to,but if that not help,find laserunit number and try find new on internet :o(
Try to change the laser unitKSS-240A (opticals). In most cases problem solved. The "zik-zik" sound is made by the motors in the unit as the laser tries to read the CD.
Caution, after installing the new laserunit remove the short circuits on the laserunit itself. This it put there just to protect the laser from static energie faulure during repair.