Creative Sbs 2.1 370 Service Manual
Problem: Sound does not come out from one speaker One of my customers sent to me his computer speakers with the complaint of no sound in one side. Free download lagu jamrud selamat ulang tahun stafa band. I tested the computer speaker and indeed the left speaker does not produce any sound.
The troubleshooting begins by comparing (sight) the components between the right and the left channel. All of the components seem to be in good condition. This led me to check the components in the left speaker circuitry. By the way both speakers rated at 4 Ohms checked to be good also.
Note: The above schematic diagram does not reflect the true circuitry found in the computer speakers. It is just for your reference purpose.
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When I placed my meter probe between point A and ground (above schematic) the meter buzzer sound indicated short circuit. It can be shorted components or the IC. I removed all the corresponding components and found that the short circuit was still present. I then removed pin 2 of the IC and the short circuit gone and the buzzer was silent. When I soldered back pin 2 and powered On the IC, it was quite hot. I should have test the IC first with my finger. A replacement of new IC solved the no sound problem in the left speaker.
Creative Sbs 2.1 370 Service Manual
Tip 1- For a working unit, when you touch Vin 1 or Vin 2 with your bare finger you will hear humming sound from the speakers. If you did not hear any sound means that particular channel have problem. Tip 2- Refer to the below schematic. In order to know if the input side or the output side have problem simply disconnect the speaker cable at point B.
Activation code windows xp. Then joint point C and D. If you could hear some sound means the input side is good.
If you did not hear any sound then the output side is the cause of the problem. This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India. Please give a support by clicking on the social buttons below.