Author Topic: home theater problem no music!  (Read 1228 times)

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Offline christos

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home theater problem no music!
« on: October 13, 2016, 03:55:38 pm »
Hello!!
I have a home theater SONY DAV-SB100
the problem with this is that it plays music like this
https://clyp.it/mzsdzoel

if you cant open it tell me to re-upload

what can cause this problem?
i have the schematics and if someone know how this can be fixed,pls tell me

Thx!!
 

Offline SoundTech-LG

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Re: home theater problem no music!
« Reply #1 on: October 13, 2016, 04:20:16 pm »
Tell us more, please. All sources, or just playing DVDs...  for example,  how does the Radio sound?

Maybe by some RTFM it can help???

 http://pdf.crse.com/manuals/2048709411.pdf

 

Offline christos

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Re: home theater problem no music!
« Reply #2 on: October 13, 2016, 04:28:40 pm »
its the same in every mode
same problem
 

Offline SoundTech-LG

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Re: home theater problem no music!
« Reply #3 on: October 13, 2016, 04:47:04 pm »
OK. That helps some. It sounds common to both L, and R ch. audio signal circuits. I'll assume it (distortion) is on Right, as well as Left channels. Sounds like a possible Power Supply issue, or, if it uses a single Stereo Power Output IC, it could be trashed.

Look for the schematic. Sony service manuals are typically easy to locate.

Happy hunting...


 

Offline christos

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Re: home theater problem no music!
« Reply #4 on: October 13, 2016, 04:54:01 pm »
well thx,,i had some issues with the power supply,,,1 diode was dead and caused no power anywhere

thx alot!!
 

Offline SoundTech-LG

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Re: home theater problem no music!
« Reply #5 on: October 13, 2016, 05:09:04 pm »
Hi,

will be interesting to know what diode that was...

http://archivos.diagramas.mx/audio/HCD-SB100%20200.pdf

 

Offline christos

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Re: home theater problem no music!
« Reply #6 on: October 13, 2016, 11:06:24 pm »
Hi,

will be interesting to know what diode that was...

http://archivos.diagramas.mx/audio/HCD-SB100%20200.pdf

its D901 and a zener at 22v which is not at the schematics
http://prnt.sc/a8jmx7
 

Offline christos

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Re: home theater problem no music!
« Reply #7 on: October 15, 2016, 12:15:48 pm »
And one more thing,,sometimes(every day) it powers on but no music at all..have to switch it on and off several times until i get that sound plus i have to increase the volume to max until the music is clear.
Does this helps anyone to figure out where the problem is coming from ?
 


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