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I bought a 2nd hand power supply which works perfectly but this time my output sound from the speakers are very Low please help?what component normally drop the sound down?

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  • Televison & ... Master
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Check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Pull up older posts. Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts. http://electronicshelponline.blogspot.com/

Posted on Dec 14, 2016

5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 520 Answers

SOURCE: Sansui TVS3245A

Use the audio select button on the original remote. Press it repeatedly until "mono" appears on the screen.

Posted on Oct 07, 2008

jerryg50
  • 1667 Answers

SOURCE: Sony 2167 No power on

I have not worked on your particular model. But, I have serviced many TV sets over the years. My answer will ge generic.

Check all the capacitors in the horizontal output stage and power supply areas for high ESR. All the caps that are out of spec must be changed.

The high voltage multiplier & flyback can also cause the fault you are having.

You have to consider that the DC voltages are not the only important spec that has to be met. There are also many power drive signals that work with reactive devices. If there is any defect in the critical areas there will be failures.

Jerry G.


Posted on Nov 26, 2008

  • 700 Answers

SOURCE: Relay clicks, but No sound, No picture.

Hello, just try this first.

Unplugged the unit the power outlet for about 60 sec.Then power it on again. If you have surge strip along the line. You should directly switch in on power outlet only. If this doesn't help.

As the relay is working you have power in standby mode. Check its supply voltages if its ok. Secondly you can check the the B+ supply it is in DC, If this is a crt type tv, check its horizontal output transistor, Check its flyback for short circuit. Capacitor near to it rated almost 800V, and deflection coil.

Just for input, hope it helps



Posted on Apr 20, 2009

stihl_070509
  • 95 Answers

SOURCE: Dear sir I am working with a Sony KVJ21MF model TV

Replace the electrolytic capacitors 220uf and 1000uf/35v on your primary section of the regulator. also check the .01 Mylar cap. in parallel with b+ rectifier diode. also check if the horizontal output is shorted..

Posted on Feb 17, 2011

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Amp Failure:
There are many different ways that an amp can fail but the two most common failures are shorted output transistors and blown power supply transistors (< those are not blown). There are several types of protection circuits in amplifiers. The most common are over-current and thermal. The over-current protection is supposed to protect the output transistors. Sometimes it doesn't work well enough to prevent the failure of the output transistors but it will work well enough to shut the supply down before the power supply FETs are destroyed. If the amp remains in protect mode, goes into protect mode or blows the fuse as soon as the remote voltage is applied, shorted output transistors are almost certainly the cause. If the fuse protecting the amp is too large, if the protection circuit doesn't respond quickly enough or if the power supply is poorly designed, the power supply transistors may fail. If you see a lot of black soot on the power supply transistors (near the power transformer), the power supply transistors have failed. Soot on the board doesn't necessarily mean the transistors have failed. Sometimes, technicians don't clean up the mess from a previous failure. Transistor Failure/Checking Transistors:
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Helle there!

First!
1) check your setting for sound to (2 way speakers)
2) Setting for Volume in control panel.
3) connector may be you need a little expantion from radio shack gold ext.
4) be sure you got sound from headphones !! **
Go it!

Jul 31, 2008 | Philips SBP1100/37 Portable Speaker System...

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Are the Philips speakers powered ????
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1 Answer

No sound


  • check the following
  • check speaker &its wire & connector for loose.
  • check supply to sound output stage.
  • check components related to sound output stage.like low value resistor & coupling capacitor.
  • check for loose print in sound output stage.
  • hope this will help.

 

Oct 12, 2007 | Televison & Video

1 Answer

Sound


  • check the following
  • check speaker &its wire & connector for loose.
  • check supply to sound output stage.
  • check components related to sound output stage.like low value resistor & coupling capacitor.
  • check for loose print in sound output stage.
  • hope this will help.

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JENSEN XA 184 AMPLIFIER


Hi, Jensen is under different ownership from when your amp was made, so it's unlikely that you'll find a replacement plug for the high-level input. A high-low converter is also called a line-out converter. It's a device that connects to the speaker wires and changes the signal to a low-level RCA connection. This allows you to use the amp's RCA plugs with your speaker wiring (through RCA signal cables). A line-out converter should be available any place that sells car audio accessories.

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