fanzo Professional Electronics Expert Team

Sonijeva CD-komponenta, zamenjen laser kss-240a, cita sve audio diskove i prikaze koliko pesama ima, kada se startuje (play) rade samo originalni diskovi, na rezani proradi po neka pesma, hoce da "secka" i menja dok ne proradi neka pesma! Da li novi laser ne valja ili samo originale trazi?

Mislim da je do lasera ponovo :hmhm:
Kako se ponasao sa starim laserom

Meni se desavalo da ako imam problem kad promenim laser bas ako ne cita pirateriju ili cita pa ne cita, bas kako je i kod tebe problem, da moram da prefokusiram laser.....ako nije obelezen sa bojom pokusaj, ali ga prethodno obelezi....

Ali pre nego sto to uradis nije lose da oglancas osovinicu po kojoj ide laser,podmazes je sa masinkim uljem, onda da podmazes osovinicu spin motora, da proveris filtraciju i onda da probas da fokusiras laser....ovo sam dopisao jer pretpostavljam da si vec to uradio ali da te podsetim :)

Hvala kolegama, RESENO, elektrolit od 10.000mf bio je "iscureo" to sam ocistio i zamenio, medjutim kiselina je "pojela" tacke koje provode na duplu stampu. Okom je nevidljivo jedino merenje instrumentom!

pa to je u napajanju zar ne?

Da, napajanje.

imao sam vise puta da zbog napajanja crkne laser manifestuje se da socivo zavibrira kad se upali na ladno i tako osiluje jedno 2 min sa sve slabijim intenzitetom (vazi samo za napajanje sa trafo 50hz) tu kondenzatori budu jako velikog kapaciteta i obicno crkavaju oni... :lol:

Mali potsetnik u vezi vibriranja sociva kss240a:



Sony had a problem with the KSS-240A optical pick ups having an
> oscillation problem, usually 800 Hz, and it can be so loud that it
> causes the unit to start skipping. Sony had a cure of adding a brass
> weight to the optical pick up, and a felt washer to the clamper. I'm not
> sure it this applies to all application of the KSS-240A or not.
>
> From a Sony Technical News bulletin that I've got a faxed copy of, the
> weight is part number 4-962-979-01, and the screw to attach it is
> 7-685-134-19. The screw replaces the one holding the PC board with the
> pots to the laser. The felt washer is 4-986-769-01, and goes on the
> surface of the clamper that touches the disc.
>
> The machines that show this do not do it on all discs, and it seems to
> be the worse 5-12 minutes into the disc. Please be aware that original
> Sony KSS-240A lasers have 3 pots on the PC board, a cable connector with
> a clamp, and that the chip on the bottom is 14 (or is it 16) pins.
> There are many 'after market' lasers sold as KSS-240A that have a single
> pot, no clamp on the cable connector and an 8 pin chip.