Question about Televison & Video

1 Answer

No audio output geepas tv

An 7821a audio output ic

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Televison & ... Master
  • 74,118 Answers

If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magzine" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
Search the site by IC number.

Posted on Apr 17, 2014

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Audio output only out of one output


hello sir,

often this is sound IC fault, if one IC there change it and it will fix the other audio output, as the sound IC have two outputs and one of it doesn't output the audio,

if two sound IC's, it's a must one of it is faulty, you better change both for long run of the audio amplifier

good luck

Oct 18, 2015 | Car Audio & Video

Tip

No sound, video OK in TVs


PICTURE IS OK AND THERE IS NO SOUND IN tvS

There are some occations arise when picture in a TV will be OK while absensce of sound.
Picure is OK, means that, functions from tuner upto video output, including power supply are OK. In most cases absence of sound may be with the fault to its speaker or speakers. In some sets there will be two speakers connected in series connection, and its sound output will be MONO. In these type of sets, if the connction is done as above, even one speaker has gone out [that is its voice coil or its connection gets opened, both speakers will not work]. In this case, you have to check each speakers individually for coil conitnuity, and the faulty one must be replaced. If there is no fault to the audio amplifier section of that TV, the problem will be solved with this.
In stereo sound system TVs, two of its speakers will have individual amplifiers, some may have both amps sections are integrated in one IC or two ICs are used seperately for each channel. In this type of sets, absenece of sound can be either to the fault of the failure audio output IC or its supply line voltage. In most cases, you can make sure the reason with a simple test without opening the set. Place your ear very close to its speaker side, and switch ON the set by its front panel power control switch. if a "Thumb' sound is heard form the speaker, you can confirm that the speaker is OK, and the power supply is comming to the output IC. If so, check the output IC terminal solderings for some loose contact. During long run, this may happen because, the Audio Output IC will heat up during working, and repeated heating and cooling may make loose soldering at its terminals; or a loose fixation of the IC to its metal heatsink, will relult overheating the IC. In most cases this is found a common fault. To rectify this, you have to open your TV, and pull out the audio output card, in some sets, this audio output section swill be built on the main board itself, place it upside down, and resolder all the terminals of the output IC by applying a little more solder, without making any solder bridges in between terminals of the IC. If this also doesn't help you, check the input voltage of the audio output IC. In most sets there will be a fuse resistor used as protection, will be in 0.2Ohms in value, and will get opend thus disconnect the supply; if IC has some fault. This will happen when the output IC itsef get shorted. If you see this resistor opend, check the output ICs positive supply rail terminal to the negative terminals' resistance with the help of an Ohm meter, if foud very low, say between 0 Ohms and 5 Ohms, make sure that the IC has got damaged. Here you have to repalce the IC and this fuse resistor too.
When replacing the audio output IC, make sure to apply thermal conductive paste, in between IC and it heat sink. This conductive paste can be bought from most of the electronic spare part selling shops at your town.
There is an other possibility too, is, the audio filtering stage in the video IF stage get faulty. To detect this, you have to go to the VIF section, and it is a skilled job, and the worker must have sound knoledge in electronics, and service experience.

on Mar 21, 2011 | Televison & Video

1 Answer

Is audio output (from main ic) is imputed in utc2003 audio amplifier ic?


Is the UTC2003 IC your main IC?
You can't find inputs or output of this IC?
This IC is power Operational Amplifier simply. It has TWO inputs noninverted = pin 1 and inverted = pin 2 and ONE output = pin 4. Pin 3 is ground and pin 5 is supply voltage. It's simple as the rake! What is your problem? Sorry for my rusty English...

Feb 03, 2015 | Audio Players & Recorders

2 Answers

Hitachi 32ld8700 ua no sound


Make sure you are not set to SAP mode...use mono or stereo.

Feb 03, 2012 | Hitachi 32LD8700 32 in. LCD 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

No sound/audio while playing tv.


Hello

If there is no audio output from your tv, either your TVs speaker or its audio output IC has damaged. You just check it with an earphone/headphone, if there is an earphone or headphone socket in front panel of your TV. If there is sound from the headphone/earphone, and not from the speaker, means the speaker has damaged. You have to replace it with same type and number. Just check your set's audio out socket, if any provided, connet it to any external audio sourse, like amplifier or so, and check whether there is sound output from it. If not, your Tv/combos' sound processing IC inside has some trouble.
most common fault is related to sound output IC or speaker itself. If speaker is found OK, go to the sound output section. This section can be easly located as speaker wire goes to that section, and follow it. Before replacing the IC, check its leads for any loose or bad soldering. i advice you to resolder all the terminals of that IC, by applying a little more solder, without making any solder bridge loose contacts between them. If this does not helps, replace the IC with an identical type and number. OK.

Dec 24, 2010 | Panasonic PVQ-M2509 Combo

1 Answer

I have an rca ctc186/7 series tv and it has no sound. We tried cleaning it, hooking other speakers to it and hooking up a dvd player and still no sound.


Hello

The audio output Ic inside your tv has damaged, or it doesn't get proper voltage. You just open your TV, and locate the audio output Ic. It can be located by following the speaker wires. Usually it will be screwed onto a heatsink. Check the input voltage with the help of a multi meter, af it is there, the Ic is damaged. Replacing it will solve the problem. If there is no voltage, follow the supply track and find out the opened circuit point. Usually a small value resistor, say 0.01Ohms in value, will be connected in series with the power supply to Ic. If it gets opened, there will be no supply to Ic, resulting no sound. If the audio outpu Ic get short this resistor will open. So keep in mind that, if this resistor is opened, there may be a short inside the output Ic, or come capacitors fitted with this supply line, after the reistor. Check the also for any short. keep a keen look at the solderings fo the leges of this output Ic. Some loose, or bad solderings also may be there. Anyway, your TVs audio output section is faulty. Find the reason and rectify it. If audio Ic is found defective, desolder it out from the board, and replace it with a same type and number. Ok

Gopakumar. India.

Nov 21, 2010 | RCA Televison & Video

1 Answer

Unit has sound, no vertical deflection. caps and output ic ok. have b+ to output. nothing at pin 2 of output ic.


If there's an audio,,it might be the defective Vertical IC...but check first if there's 24v-26vdc supply coming from FBT going to Vcc of Vertical IC.

If there's no Audio,and only white horizontal line in the screen,check the Vertical out of Jungle IC.

Good luck!

Oct 12, 2009 | Toshiba 27D46 27" TV

1 Answer

Sanyo DS35510 35" has picture but no sound. Checked all audio under menu section, turned both tv and cable up really loud, made sure both cable and tv wasb't on mute and still no sound.


Hello,

You may have a malfunctioning audio output IC. I would suggest checking the input to the IC and seeing if you have an audio signal at the input. If so then the output IC is defective, if not continue checking the stages of audio going back from the output IC.

In addition check your speaker connections, and internal cabling.
This can cause this problem also.

Thank you

Shuttle83

http://www.electron-age-technologies-llc.com

Apr 06, 2009 | Sanyo DS35510 35" TV

1 Answer

Set dead


Replace output ICs

Jul 09, 2008 | Audio Players & Recorders

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

22 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74106 Answers

Cindy Wells

Level 3 Expert

5100 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...