I bought that book from Humphrey and also his book on CRT TV's. I will probably never work on a CRT except for maybe my scope, but I wanted it for my library. And also to help out our friend.
Thanks Humphrey,

Robert

Likes(0)Dislikes(0)

Thanks for your reply Humphrey. I understand that the height is important. I have a digital Caliper/slide calliper to measure it exactly but I still wonder how the platter can be adjusted/is mounted on the spindle motor axe?
And I noticed that a defect Bluray player has a special 4 pole Spindle motor which apparently differs from a CD/DVD player.
It is the mechanical construction I am unfamiliar with. I also noticed in a Philips DVD player/recorder that the spindle motor axe with platter itself also can move up a bit without leaving its metal construction. But that also can be a defect why the plateau eject fails so often? Also because the top magnet is very strong and it simply refuses to disconnect mechanically from the spindle motor with the platter inbetween. Hence why the plateau can't be opened.

Likes(1)Dislikes(0)

Hi Albert.
You can use the previous spindle motor to estimate the height-Placing a small precision screw driver between the platter and the motor can give a rough estimate of the height.

It is also possible to remove the platter only and replace with the new spindle motor, this is very true while replacing home theater spindle motor but you should be careful not to bend the platter.
Thanks for buying my eBook Albert
All the best
Regards Humphrey

Likes(0)Dislikes(0)

Dear Zaheedi Farjan
Good Day
About your Sony Bravia, You should check the power supply for stable voltages or the power control board on which the main LCD ribbon cable and inverter board control cables fits, The small spider chip must be damaged and overheating, You can try by changing that power board or just the chip.
Hope this solves your problem

Likes(0)Dislikes(1)

I just bought and read Humphrey's interesting e-book on DVD players repair, but one question came to mind. How exactly can we adjust the Platter's Spindle motor height? I take it that it is just a matter of shifting the platter mechanical up or down on the motor axe? Or can it only be solved by exchanging the platter top from another spindle motor?

Likes(0)Dislikes(0)