Wednesday, March 4, 2015

Cyrus cd8 se2 skipping and disc read problems, DIY laser unit replacement

Ok, so I had some issues with my Cyrus cd8 se2 (factory upgraded by Cyrus from SE to SE2 unit)
The player didnt read all discs properly and it was skipping with some tracks. I've read about similar experiences on the web about Cyrus cd players.

Cyrus repair would have cost 250£, not including the postage overseas.
I ordered a replament Laser unit from Ebay, which cost 20£ and did seem to do the trick. Skipping issues are gone. The do-it-yourself repair took about 5minutes to complete after I found the proper instructions from the laser units distributor.

The exact model of the laser unit for the Cyrus cd8 se and se2 is SF-HD850. Apparently its a dvd-laser unit made by Sanyo.

Cyrus claims on their website that "Cyrus took the unique move of throwing that software out of the window and creating our own disc reading technology. All of our CD players now use our second generation servo software which provides audible improvements to the reading of CDs." Ok, maybe it has something more to do with the software and not so much on the laser unit.

Here is the link to the sd-hd850 product page:
http://cpc.farnell.com/1/1/112725-optical-pick-laser-lens-sf-hd850-sfhd850-sanyo.html

Specifications:
http://www.farnell.com/datasheets/1668704.pdf

This install manual shows the location of the "desolder point"
http://www.farnell.com/datasheets/1668705.pdf


And some images of the laser replacement:

Unit upside down, begin by removing 4 screws, yep, thats a t10 torx head.


Remove the small screw holding the "power" pcb card in place. Above the motor.


You need to carefully remove the small plastic clip holding the large white gear in place. Pull the gear up.



The laser unit is attached to two metal shafts. Unscrew the two small screws holding the shaft in place, you only need to remove the shaft on one side and the laser unit comes off pretty easily.


Remove the cable carefully, it is held in place with the black plastic tab. Note the orientation.

Impotant: The new laser unit will not work unless your remove the solder dot on the new unit. Compare the old unit to the old one. The place is marked on the pdf link.

This should work, atleast did work on my cd player.