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-   -   Replacing Sony KSS-240a laser in Arcam alpha 7 CD (http://www.diyaudio.com/forums/digital-source/58720-replacing-sony-kss-240a-laser-arcam-alpha-7-cd.html)

kora 8th June 2005 06:13 AM

Replacing Sony KSS-240a laser in Arcam alpha 7 CD
 
I'd appreciate directions, however general, from anyone who's done this before, for me it would be trial and more likely error.

Netlist 8th June 2005 08:44 AM

The KSS240 is a fairly easy unit to replace.
Can you post a picture of the transport taken from above and with open tray?

/Hugo :)

tonitze 8th June 2005 11:16 AM

Most likely you need to unsolder link for the static protection on the new len. Check that with your vendor.

kora 8th June 2005 04:51 PM

(Just charging the camera)

kora 8th June 2005 06:06 PM

2 Attachment(s)
Hope you can see something, 102kb is very small

Netlist 8th June 2005 07:35 PM

2 Attachment(s)
OK, I've got an example here of a KSS210. Not exactly the same but you'll get the picture.
Remove the plastic on top of the transport. It could be tightened with two or four screws or clipped in.
Remove the 4 screws that hold the laser unit plateau.
Take care of the springs underneath the platter, they are sometimes different in strength, make sure you put them back in their original location.
Now remove the white plastic wheel that is clipped into the plastic. Do this by pinching the clips underneath with tweezers and pull the wheel.

/Hugo :)

Netlist 8th June 2005 07:46 PM

2 Attachment(s)
Take good care of the white flex cable, pull it gently out of the laser unit. (Not on my picture, the 210 has normal wires.)
With a small tool, clip the little plastic away so the axe can be pulled out a bit. The trick is to take out the axe completely and ones this is done the laser unit is disassembled.
No need to tell you that the procedure for assembling is the same but in reverse order.

/Hugo :)

kora 8th June 2005 09:06 PM

Thanks for that Netlist, much appreciated (= quite a lot of Guinness IOU). No soldering, no adjusting the laser? Probably won't start before the weekend, meantime I'll wonder why the max file size I could attach was 10kb.

sheldonstv 9th June 2005 09:04 PM

optical block replacement
 
:D There is no adjustments necessary,do not forget to desolder the link for static protection of your block or it wont work...
dont forget to clean and lightly oil the runner upon which the optical block sits
regards mike

kora 9th June 2005 09:14 PM

Re: optical block replacement
 
Quote:

Originally posted by tonitze
Most likely you need to unsolder link for the static protection on the new len. Check that with your vendor.
Quote:

Originally posted by sheldonstv
do not forget to desolder the link for static protection of your block or it wont work...

Could you explain about desoldering the link please?


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