Sony scd-xb770 read problem.

air · 16th April 2004, 12:08 PM

I got an scd-xb770 sacd/cd player, that does not read almost any cds. I have tried to calibrate it (according to the service manual), but without success. Sometimes, if it succeeds to find a disc, it might play the whole disc without any problem. Some discs never work, and some (mostly cd-rs) work about half the times. Cant seem to find the proble, with this one. Does anyone have any ideas or suggestions?

Thank you!

hjelm · 16th April 2004, 01:52 PM

Somebody suggested that some CD players had a wrongly adjusted inner stop for the laser which caused the failure to read the innermost track information and thereby the whole read would fail. This sounds like a plausible explanation since you are able to read a whole disc once it is found.

Do not know how to adjust it thogh, there was a thread here previously but i cannot remember what to search for to find it.

air · 16th April 2004, 02:10 PM

That might be the problem. Also, as some cds are easier for it to find, especially cd-r´s that got cd-text. Has it been on this forum? I have searched it without luck.

hjelm · 16th April 2004, 03:08 PM

Found it.
It was mentioned in this thread. Do not know if it helps.
Puzzle with warmed up player....

Edit: spelling

air · 16th April 2004, 09:55 PM

Opened it up, and there is a switch wich signals the most inner position. Temporary moved it, so the laser will come closer to the middle of the disc, but no difference.

hjelm · 21st April 2004, 01:23 PM

Is there any progress in debugging your CD player?
Tried cleaning the lens?

The only other thing I can think of is to remove and refasten all cables to see if anything is oxidized or badly connected.

air · 21st April 2004, 02:41 PM

Hi, yes I tried cleaning the lens. I believe that my player will have to RIP. I have checked cables, and solderings, and resoldered suspicous things. I also asked the same questions on techniforum, and spoke to a guy from .cz who had worked 9 years at sony service. He recommended to try to freeze the laser, to see if it is the problem, and when i freezed it, it worked better for a while. Dont know where to go on now, dont think I will change the pickup, as this player isn´t that good in the first place, and the pickup is rather expensive (300e at sony service in finland).

Thank you for your suggestions.

16th April 2004, 12:08 PM	#1
air diyAudio Member Join Date: Mar 2004 Location: Helsinki	Sony scd-xb770 read problem. I got an scd-xb770 sacd/cd player, that does not read almost any cds. I have tried to calibrate it (according to the service manual), but without success. Sometimes, if it succeeds to find a disc, it might play the whole disc without any problem. Some discs never work, and some (mostly cd-rs) work about half the times. Cant seem to find the proble, with this one. Does anyone have any ideas or suggestions? Thank you! __________________ //air

16th April 2004, 01:52 PM	#2
hjelm diyAudio Member Join Date: Nov 2003 Location: Västerås	Somebody suggested that some CD players had a wrongly adjusted inner stop for the laser which caused the failure to read the innermost track information and thereby the whole read would fail. This sounds like a plausible explanation since you are able to read a whole disc once it is found. Do not know how to adjust it thogh, there was a thread here previously but i cannot remember what to search for to find it. __________________ Hjelm

16th April 2004, 02:10 PM	#3
air diyAudio Member Join Date: Mar 2004 Location: Helsinki	That might be the problem. Also, as some cds are easier for it to find, especially cd-r´s that got cd-text. Has it been on this forum? I have searched it without luck. __________________ //air

16th April 2004, 03:08 PM	#4
hjelm diyAudio Member Join Date: Nov 2003 Location: Västerås	Found it. It was mentioned in this thread. Do not know if it helps. Puzzle with warmed up player.... Edit: spelling __________________ Hjelm

16th April 2004, 09:55 PM	#5
air diyAudio Member Join Date: Mar 2004 Location: Helsinki	Opened it up, and there is a switch wich signals the most inner position. Temporary moved it, so the laser will come closer to the middle of the disc, but no difference. __________________ //air


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21st April 2004, 01:23 PM	#6
hjelm diyAudio Member Join Date: Nov 2003 Location: Västerås	Is there any progress in debugging your CD player? Tried cleaning the lens? The only other thing I can think of is to remove and refasten all cables to see if anything is oxidized or badly connected. __________________ Hjelm

21st April 2004, 02:41 PM	#7
air diyAudio Member Join Date: Mar 2004 Location: Helsinki	Hi, yes I tried cleaning the lens. I believe that my player will have to RIP. I have checked cables, and solderings, and resoldered suspicous things. I also asked the same questions on techniforum, and spoke to a guy from .cz who had worked 9 years at sony service. He recommended to try to freeze the laser, to see if it is the problem, and when i freezed it, it worked better for a while. Dont know where to go on now, dont think I will change the pickup, as this player isn´t that good in the first place, and the pickup is rather expensive (300e at sony service in finland). Thank you for your suggestions. __________________ //air

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