Sony ST-5000W not working in stereo

cchean · 18th August 2010, 07:49 AM

I just bought a Sony ST-5000W tuner that is not working in stereo mode. There is sound output but there's no stereo separation. Is this an easy fix? Are parts available for this repair? Please advise. Thanks.

Mooly · 18th August 2010, 08:36 AM

Would have to see a manual but problems can be caused by dirty preset pot (speaking generally) for the MPX decoder. Have had this on odd occasions.

What ever you do, do not alter any tuned coils, caps without equipment and procedure to realign.

If you can locate the stereo decoder (IC surely... it's not that old it's discrete is it) and see if there is a pot in the vicinity. If you adjust it, first measure the DC volts on the wiper so that you can put it back where it was.

18th August 2010, 07:49 AM	#1
cchean diyAudio Member Join Date: Dec 2008	Sony ST-5000W not working in stereo I just bought a Sony ST-5000W tuner that is not working in stereo mode. There is sound output but there's no stereo separation. Is this an easy fix? Are parts available for this repair? Please advise. Thanks.

18th August 2010, 08:36 AM	#2
Mooly diyAudio Member Join Date: Sep 2007	Would have to see a manual but problems can be caused by dirty preset pot (speaking generally) for the MPX decoder. Have had this on odd occasions. What ever you do, do not alter any tuned coils, caps without equipment and procedure to realign. If you can locate the stereo decoder (IC surely... it's not that old it's discrete is it) and see if there is a pot in the vicinity. If you adjust it, first measure the DC volts on the wiper so that you can put it back where it was. __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.*

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