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KSS-240A replacement/adjustment in the Sony HCD-H1700

Seems the laser finally reached end of life. Cleaning does not help,
increasing laser power is just temporary solution. So decided to replace
the KSS-240A laser head.

I am quite familiar with electronics (over 20 years in R&D) and well equiped (Tektronix 200MHz), but suppose I do need proper documentation and
may be some good advices. Would somebody help?

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The laser assy should come complete if its only the eye itself only loosen one slide rail and slide the old one off and the new one in this keeps the laser alignment intact .coloneus

Posted on Aug 14, 2008

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CD player skips randomly. Not always same CD and not always on same place on CD

IF its an older SONY player, or an player with a KSS type laser in it ? then may be this can help
In the laser unit is a small spring remove this and also the overlying plate, a plastic block is seated at one end of the metal quide shaft move it very carefully in order to push aside the guide shaft as far as possible in order to free the laser in order to remove it, but is not strictly necessary to remove the plate the little spring only can save a lot of trouble with this type of laser.
The cogs are in that early years made to to delicately and get trouble over the time on the white axle excessive wear , the later models laser have it not anymore
If not Sony only to do a cleaning and silicon lubricate the guide shaft(s) of the laser again. can also help
Especially in the case of the mark Technics lasers which has a magnet transport, or Pioneer which often has a worm shaft.

Mar 11, 2016 | Audio Players & Recorders

1 Answer

Sony 5 disc player CDP-CE335 ?

you can still get the lasers for these. If that is what it needs. read the kss # on the side of the laser . Might say something like kss210 or kss213. Andrews electronics has these cheap. Larry

Aug 18, 2015 | Sony Audio Players & Recorders

1 Answer

I have a Sony CD/tape player model # HCD-NE3. When trying to read a CD - it says NO DISC. What should I do?

Typically a no disc display indicated dust on the optical unit ( lens ) or failure due to low laser beam emission. For the first case you have to remove the top cover and clean the lens very gently with a ear bud. The the cleaning does not solve your problem you have to replace the optical unit itself. Unless you have experience doing the above i won't recommend it. Replacement will cost you about 15$ plus labor.

Aug 11, 2011 | Sony Audio Players & Recorders

1 Answer

Hi, I have a NAD C541i cd player when i turn it on i get three blue line on the display, i open the draw and insert a CD disc but the blue lines stay on the display and the disc don't play. can you...

The blue lines you mention should flash when trying to find
the 'Table of Contents' of your CD, even if a CD isn't loaded.
If when a CD is loaded and these lines flash for a while without
any CD info e.g track no. / disc length then it's more likely that a problem has occurred with the laser.
Various NAD CD players use the Sony KSS-213 Laser unit
and for some reason particularly with NAD CD players, they tend
to drift out of calibration over time so what i usually do when i come across this is very finely adjust the pot trim on the laser itself and testing a CD between adjustments.

Jun 22, 2011 | NAD C541 CD Player

1 Answer

My husband had a Sony cd player that he used alot. He passed away 3 yrs. ago and I have not used it till now. I put a cd in and it will play for short while, then stops and the red light in front comes on....

Long duration of unused condition will make its laser head assembly to be infected by fungus. You haven't used this device since 3 years, and so the possibility is of 90%. If you have a lens cleaning disc, put it into it and play for three or four times. Sometimes this may help you. If not replace its Laser Pickup Unit, with same type and number. OK.

Mar 09, 2011 | Sony Audio Players & Recorders

1 Answer

I need to replace the laser assembly on a ADCOM GCD-750

I thought it used a KSS-240 which is a Sony laser.
# will be on the laser and Mcm has it for I think $35

Apr 16, 2010 | Adcom GCD-750 CD Player

1 Answer

Sony es cd player skips

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?

Mar 18, 2009 | Sony Audio Players & Recorders

2 Answers

Sony CDP-XA30ES CD Player

Try opening up the top and cleaning the lens using a cotton swab and alcohol. If that does not resolve the problem, look at the back side of the optics and there should be a marking like KSS-xxx. This is the generic part designation. Any electronics supplier that supports Sony should have these.

Apr 08, 2008 | Sony CDP-XA30ES CD Player

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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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Sony system shows "initialising"

probably your laser is weak,if you're not qualified to open pls, visit nearest sony service center to have the laser replaced.

Jan 27, 2007 | Sony SCD-C333ES 5-Disc CD Changer

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