Replacing Sony KSS-240a laser in Arcam alpha 7 CD

kora · 8th June 2005, 06:13 AM

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

Hope you can see something, 102kb is very small

Netlist · 8th June 2005, 07:35 PM

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

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

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

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?

8th June 2005, 06:13 AM	#1
kora diyAudio Member Join Date: May 2005 Location: On a hill	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.

9th June 2005, 09:04 PM	#9
sheldonstv diyAudio Member Join Date: May 2005 Location: united kingdom	optical block replacement 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

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8th June 2005, 08:44 AM	#2
Netlist diyAudio Moderator Join Date: Jan 2003	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

8th June 2005, 11:16 AM	#3
tonitze diyAudio Member Join Date: Feb 2003 Location: singapore	Most likely you need to unsolder link for the static protection on the new len. Check that with your vendor.

8th June 2005, 04:51 PM	#4
kora diyAudio Member Join Date: May 2005 Location: On a hill	(Just charging the camera)

8th June 2005, 09:06 PM	#8
kora diyAudio Member Join Date: May 2005 Location: On a hill	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.

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