Question about Salton Televison & Video

2 Answers

No sound - replaced output ic, voltage rails in output seems ok has audioblob by switchoff thanks frank

Posted by on

  • kemptv Jul 18, 2009

    no sound via AV either-
    i would think, that the ampl pcb is ok- but can not follow into main with no circuit

    any Idea would be appreciated, Frank


×

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 5,807 Answers

Hi,

since supply voltage is OK no problem about that.

the trouble lies before the TV audio out.

after it , goes to your amplifier which you have checked OK.


the main source of sound that is produced on the TV audio out and then goes to audio amps

comes from the Video-Jungle IC.

From the video -Jungle IC , the sound is selected through the inputs selected by another Processor.

This processor is a chip another microprocessor IC which controls the TV , the main brain of the TV.

so if the sound is not coming out from the TV out, here are the possibilities


a) the last preamp or circuit to your TV audio is bad:

b) the switching IC for the sound is bad

c) the signal is blocked by the microprocessor

solution to this might be reset processor to default

d) there are bad tact switches in front of your TV

solution - to disable it or manually extract them,
return if don't work

e) the Video-Chroma-jungle IC is bad

hope my suggestions helps, thanks for using Fixya

Another suggestion would be use a good amplifier and use it as the sound selector, and let it do the job, rest for a while, soon you will see where the fault really are.


Posted on Jul 19, 2009

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Salton Master
  • 19,396 Answers

Troubleshooting is difficult, as the schematics for this set are not available.

Check if there is sound through the cable outputs, for example connecting a DVD recorder or a VCR or an home theater and testing.
if you get sound in there concentrate on the speakers output, otherwise test the audio circuits on mainboard.

Posted on Jul 18, 2009

Ad

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.
New users get to try the service completely Free afterwhich it costs $6 per call 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

Picture, but no sound


Hello
Check the speaker. If it is OK, check the voltage at the audio output section. If there is voltage, and still you do not get sound output, repalce the audio output IC. OK.

Mar 01, 2012 | Sony KDF-E60A20 60 in. LCD HDTV

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

Sound loss


Hello
Check the speakers of the TV. If they are OK, check the voltage that comes to the audio output section from the power regualtor section. If the voltage is also OK or seem shorted, the audio output IC of your TV has damaged and the section should be repalce as card basis.

Feb 27, 2012 | Sony Bravia KDL-46V4100 46 in. LCD HDTV

1 Answer

RCA Tru Flat 20" TV/DVD Combo Remote and manual


Hi
Check its speaker first. If it is Ok, check whether the volume is set to zero, or mute function is ON. If all of the above is OK, the audio output IC of your tV is faulty. You ahve to replace it with same type and number. Audio IC can be located by following the speaker wire. One end of that wire will go to oudio output section. There will be an IC; usually screwed on to a metal heatsink. Check its solder terminals first, for any loose soldernng. It is best to resolder all the solder terminals of that IC, by applying a little more solder, without making any solder bridge in between adjecent solder points. If this resoldering also does not help you, check the voltage at the pins of that IC. The maximum voltage will be between 25 and 24VDC. If the voltage also is there, and still there is no sound, replace the IC with same type and number, provided the speaker is good. OK.

Jul 12, 2011 | RCA 20F610TD TruFlat TV/DVD

1 Answer

TV has no sound


Hello

You haven's specified nothing about the picture. Picture is Ok and there is no sound I thinks and posts this solution

Either your TVs speaker or its sound out put ic has damaged. To check it and conifrm you just do this first. There is a stero headphone socket on the front panel of your TV. Insert a headphone pin inot it and listen whether there is sound output come ffrom it or not. If there is sound output from the headphone socket, and not from the speaker, be sure taht the speaker is out.
If there is no sound output from the headphone socet, wither your TVs sound output ic is damaged or it doesn't get proper voltage to go on. It is very easy to locate this IC, as speaker wire goes directly to this section. Just follow the speaker wire and locate the IC, usually screwed on to a metal heatsink. Check its input voltage. If there is no voltage to that IC, check the track associated with that pin. If there is voltages and still not works. first resolder all the pins of that IC by applying a little more solder, whout shorting the adjecent terminals. If this does not helps, replace that IC with same type and number. OK.

Jan 05, 2011 | RCA F27442 27" TV

1 Answer

My sony KV-G21PD1 sounds are not working


Hello
Either your TVs internal speaker or its sound output Ic has damaged. You can make sure about which part is damaged through the following sugession.
Just place your ear, very close to the TVs speaker side, and switch on your TV with its front panel power switch, not by the remote control. If you can hear a 'thumb' sound or 'HUM' sound, you can make sure that the speaker is ok. If you hear a 'HUM' sound as describe above, make sure that its sound output Ic has damaged. If the sound output Ic has damaged, sometimes you may not hear any sound at all too.
Connect the TVs audio out RCA scoet to an amplifier, if you have, and try to get the sound through it. If there is sound through an external device, make sure once again that the internal sound output Ic has damaged. Speaker can be checked by a torch cell, connecting its terminals to the two leads of the speaker, with two pieces of wire, just intermittent touch, you can make sure that it is ok or not.
To replace the sound output Ic, you must open your TV, and locate the sound output section inside it. It is easy, to do, just follow the speaker wire, and find it from which point from the main board it orginates. Somewhere near to it, you can loact this Ic.
Before replacing the Ic, just measure whethere there is voltage comes to its supply terminal or not. If there is voltage, and no sound at all, replace the Ic with same type and number without any doubt.
If there is no voltage comes to the input pin of that Ic, check the track leading voltage to that point, and find whether there is any resistor has opend or not. Ok
If you need any further assistance, contact me through Fixya.
OK.

Nov 26, 2010 | Sony KV-27S15 27" TV

1 Answer

I have a RCA mod. 20f512t cx51 20" flat screen tv.


Hello
There is some short circuit on the circuitboard of your TV. The smoked transistor like device is a low voltage regualtor integrated circuit [IC]. There is no 5VDC rail on the circuit board. The component you specifies may be a 5VDC regulator. If it is so, there must be a reason for its failure. Without this 5VDC rail, there will be no standby light. Its system control section won't work, as it have 5VDC to be into. You jusct check for some short on the 5VDC rail. There will be markings on the printed circuit board about the pins of that IC. It will have normally 3 legs, out of which one is marked as input, and other one as output and the third will be ground. You just find the output pin of that IC, resolder it out from the board, and measure there is any input voltage coming to its input pin without replacing it with an other. If not, collow the inout track to that IC, and find out the origin of that woltage. Usually it will come from the any one of the secondary windings of the line outout transofrmer {LOT}. If so there will be a series low value resistor will be there, check it for open. If there is input voltage already, check the output side for any short. In some cases, ceramic capacitors, if fitted across the 5VDC rail has a chance to get leakey, which in turn put a heavy load on the above said regulator Ic, and that may be the reason for its burning. Anyway, there is no 5VDC rail inside the circuit board. Check for it. If you wants any more clarification, ask me through Fixya, stating your findings, and your doings. OK

Nov 24, 2010 | RCA 20F512T 20" TV

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

LGRZ17LZ40 television low audio problem. despite increasing volume up to maximum the audio is really quiet I have checked the speakers and they are ok, any ideas welcome, thanks Arthur


check the voltage supply rails to the audio output, usually between 14 and 30 volts. if low replace respective rail capacitor for being open circuit. also check the fusible resistor for high value.
ive also had later model lg sets with a crook audio detector ic crook, the one marked micronas.

Jul 09, 2008 | Televison & Video

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

Related Topics:

39 people viewed this question

Ask a Question

Usually answered in minutes!

Top Salton Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74377 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

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

Level 3 Expert

6694 Answers

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

Answer questions

Manuals & User Guides

Loading...