faulty sony cdp ........

A friend has the following problem.........

It's sounds just like static, or a typical click you'd get from record in need of a clean except the clicking sound is pretty much the same volume and tone every time. Happens every three seconds or so.
No mods to the unit.

cdp is a sony CDP-X339ES

Any ideas

 

Sounds like a possible dry joint, defective component or does he live near radar??

 

that sounds like you need to take out and clean the ribbon cables with a pencil eraser and plug them back in.

I have heard something like this before when playing cdr's too, don't know why though ?

so I would say start with the cables, then mark the laser voltage and focus pots so as you can return them back to where they were (if it has them) and move them a couple of clicks noting how far and in what directon you moved them, hopefully you can adjust them while the player is on.

might work ?
try the cables though, as I have definitely had problems with these before.

 

Cheers........... passed on the info [he's in the states].

 

Zanash, I'm going to make a private bet with myself that what you've described is even more readily apparent (and possibly, limited to ) copy protected cd's.....

 

Could be but it's not my unit nor have I heard it so ....the owners been pointed towards this thread and maybe will comment.

 

Hello
I'm the person who's been pestering Zanash about my problem with the CDP-X339ES.
We can probably rule out radars. If there are any around they don't effect my other four CD players. The static-type sound occurs on all CDs - old and not so old.
I've checked for dry joints and replaced the two clocks with clocks from a couple of other Sonys I have lying around.

I'll try the eraser thing - what would this be doing exactly?

The only place I haven't checked for dry joints is on the board beneath the transport. Tough to get to, but if the eraser doesn't work I'll dig in.

Cheers for your help. Any more suggestions are more than welcome.

 

it will clean up the contacts on the foli strip....certainly worth a go!

 

I've just been told that the connectors are the block type...all pins have been cleaned with contak fluid.

Any more thoughts ?

 

I suppose you have tried tapping bits of the circuit lightly (with a biro) to see if the click occurs ?

this almost definitly won't work, but try using an old playstation 1 disk (it will only play the audio and only on some disks) and play that, the whole surface is black and may help the laser focus easier, see if it still clicks? probably just a silly idea.

is the laser on rails or a swing arm ?
could be getting stuck and may need some lubricant applied?

is the player perfectly level?

did the problem get gradually worse or was it just a case of one day it started?

just some idea's.

 

another solution
well one I usually find useful, just buy another one
then steal all the parts from the other one, you could see if it is the transport etc.


http://cgi.ebay.com/SONY-ES-CD-PLAY...itemZ9728063665QQcategoryZ61329QQcmdZViewItem

*goes to find one for myself*

only just realised, I had that player about 15 years ago, my dads friend found it in a skip at sony where he worked at the time. (working but dented to hell) and gave it to me, from what I can remember it sounded very good, and was very heavy, but this was in the days I didn't really take things apart. ( I remember beefy psu's though and an ally case I believe? ) I think I swapped it for some nintendo games or something silly

 

I had a 339 and never had any problem with it (13 years old when I sold it earlier this year). The problem sounds like a laser misalignment (the static is the error-correction trying to cope). I don't know if the SONY mech has any alignment adjustment; it's just old enough that it might. Finding someone with a scope and the know-how is a differnt matter!

 

By email I suggested the tapping route ! but with a rubber ended pencil !

I've the documentation "cd optical block checking procedures" by sony

the cdp338 esd is a listed unit.

Which may be of some use !