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No audio, what can i check - LG 52SX4D 52" HDTV

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Audio not coming in Supra tv model st25ad33s I change audio IC no result am looking for solution

Have you checked the speaker? Have you checked the voltage to audio output IC? Have you checked whether the audio is 'muted' or not? Check these. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.

Jan 18, 2015 | Televison & Video



Check the fuse F01. If the fuse is open change the fuse after confirming there is no other faulty component.
If fuse is OK the check C10 voltage is normal or not. If its not normal then change BD01.
If the voltage on C10 is normal the check the SMPS switching ICs IC01 and IC02. If found faulty change IC01 and IC02.
Check the current digital audio stetting is its in PCM or Bitstream . IF it's in PCM then change it to Bitstream.
If ther is no diagital audio out even after it to bitstream, check the AV receiver settings. If everything is ok there too then check the AUDIO DATA at AIC Pin 4 (for BD)or AIC3pin 13 (forDVD) using CRO. If there is no audio data the change the main PCB.
If the AUDIO DATA id ok then check DIGITAL AUDIO DATA at pin7 of AIC3 if there is no audio data then change AIC3. If its OK, Check 5V at AIC2 pin 14. If the 5V is missing check the power supply. If 5v is ok the change the main PCB.
ANALOG AUDIO MISSING........................

Electronics Equipment Repair Center

on Feb 14, 2015 | Samsung Televison & Video

1 Answer

Emerson HDTV audio problems

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.

Jan 25, 2018 | Emerson LC320EMX 32 in. LCD HDTV

1 Answer

No audio

CHECK the following tips:

1. Take the audio / line output and connect to an amplifier. If there is no sound then the preamp or the SIF sections are suspects. If sound is present these sections are working and so the fault is with the power amplifier.
2. Check with an audio source from a DVD to the audio/line input . If sound is present the amp is working and if not the power amplifier is faulty.
If so check the power to the audio output IC , check the capacitors or else the IC can be a suspect.
Checking the preamp or the SIF might need a audio signal injection with a voltage check.

Aug 24, 2011 | TruTech PLV16190 Television

1 Answer

1996 RCA G32750AT No sound

Pl.check audio click at the grid of audio output IC,locate this by checking speaker connection,if click is received than problem lies in the audio IF stage,check the voltage of this stage and locate the fault accordingly,if no audio click received at the output than check speaker for open or voltages of audio output IC to locate the fault.

Jan 16, 2011 | RCA Televison & Video

1 Answer


  1. right click on the volume icon on the right hand bottom corner of the screen and checked if mute is checked.
  2. go to device manager and check the audio ,if there is any exclamation mark,enable that.
  3. uninstall the audio driver and restart the computer.
  4. try to download the latest audio driver and restart the computer.
  5. check the audio connection with the speaker.
  6. connect any external audio speaker with your laptop.if it works then internal speaker need to replace
  7. no sound with external speaker need to replace audio card

Sep 17, 2010 | Computers & Internet

1 Answer

My audio is not working

You can check your audio by using these steps.

1. If you have speakers, check if it is plugged properly into your audio port which is the port with the "green" color. Check your speakers if it is turned on, put to low volume, or no power or check your audio settings on your computer if it is muted.

2. If step 1 doesnt make your audio work, you should check if your computer has audio driver installed, it depends on the manufacturer which audio driver should you install. if it is built in audio, you could use the mother board driver cd.

3. If still your audio is not working , you may have problems on your device. If you have external audio device, you should try to check if it is plugged properly on your motherboard. If still doesnt work. you should buy a new one..

Hope this will help you out. =)

Jan 02, 2010 | Computers & Internet

1 Answer

No audio from external speakers dell 2400 computer

1)Check audio Enabled in bios

2)Check whether audio drivers are installed in device manager if not install audio driver for DIMENSION 2400 from

3)Check Audio port using Head phones to ensure is audio port is working fine.

4)If Dell speakers, check speakers Manuals from

Dec 04, 2009 | Dell Dimension 2400 PC Desktop

1 Answer

My computer have no sound output

i think the audio driver is not installed ...
try installing the audio driver ...
to hear sound audio codecs are required so just install the audio driver given in the manufacture cd while the purchase of the PC or motherboard ...
if already installed then go to control panel > sound & audio devices there you check the audio is it installed or not if it is installed then it will show the volume panel ... if not it will show you no audio device available ...
then you must install the audio driver ... if installed then also facing this problem then go to control panel >system>device manager>check the sound devices uninstall them & then reinstall the audio driver ...
this must solve your problem ...
if still problem persists then check the speakers & wires correctly ...
& check if it inserted to the audio jack only or not ..
check in audio panel is the volume is muted...
if you still persist the same problem then there may be some problem in the port or loose contact check it ...

any doubts you can reply me
i am always here to assist you
thank you
dnt forget to rate my solution

Jul 02, 2008 | Mercury KVM800M Motherboard

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