NAD 5255 cd player

[Kiwick]

Hi you all.

I've found a 1985 NAD 5255 CD player in the trash, it spins CDs for a few seconds then it quits without recognizing them, any chance of fixing it? maybe bad capacitors?

[BrassTeacher]

I would say it's a 99% chance the laser is dead. The transports in those were really well built, not much else to go wrong. As far as I know, there is no replacement laser available. I just ditched two of those players for the same reason.

[Kiwick]

Well, the laser doesn't seems to be totally dead, as the player spins the CD and struggles quite a bit to read the TOC but then it ultimately gives up

i also can see the lens moving up and down and a dim red shine in it for a few seconds if i turn on the player without a disc.

would it be ueful to tweak the laser feedback adjustment?

[wsjoe]

that's the exact description of a dead or dying laser. It can't read the TOC so it gives. The initialization code is to start spinning so the laser can read the TOC but it is not reading. Try switching cd's and if not, it's dead. try to read the laser model number. I tried googling which laser pickup unit it has but no luck so far.

[guiller]

According to this list:

http://www.vasiltech.nm.ru/files/cd-players/CD-Player-DAC-Transport.htm

DAC is TD6705AP and laser (transport) is Toshiba OPH-32.

All the best

[BrassTeacher]

I tried adjusting the laser gain, and the focus gain, but to no avail. And yes, the laser head in the two units I had were moving just as they should.

[xserver68]

just take the laser apart, take the len head off the laser carefully there is three small screws on the bottom of the laser clean the other side of the lens it fog up inside over the years that why it won't read disc right, then put it back together, sure work like new did this to a old technics cd player works great now