Video Asylum

Posted by wlee (A) on May 11, 2009 at 17:04:29

In Reply to: RE: DVD pick up head posted by Bob in Alberta on May 11, 2009 at 14:53:17

hi Bob, how things are in Alberta? Tks for your advise and sugestion, we I play electronis since young but never could understand laser head yet as my EE and Physics was from 1981 era, though I went to McGill...when they were still researching fiber optic and we had fund programming PDP11.
I got the service manual of Pioneer DV59 that showed thoese scope view, I was just hoping if some one could tell me what the 2 trimmers on the head are for, is one for focusing and the other one for lesar output?? You know the DVD players are so cheap this day, and I am probably buying a new one every 6 months to play with the electronics inside, mainly tuning for the sound. Lots of cheap players could actually produce nicer sound then those sperate transport/DAC on the early to mid 90s after tweaking....

tks a million

William