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Sharp 20v-w70m speaker and IC ok but no sound

My sharp tv model 20v-w70m has no sound, speaker is working and okay and also the IC but no sound is coming out

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  • Sharp Master
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Check the input voltage to IC. If it is absent, the IC won't work. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts.

Posted on Dec 31, 2013

Testimonial: "there is input voltage to IC but still there is no sound."

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6ya6ya
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Posted on Jan 02, 2017

SOURCE: sharp tv 20v-j50m

Good day.

Your problem has something to do with your memory ic, system and the resistors 120k placed in parallel near the flyback.
check on this.

Response is highly appreciated.


chris

Posted on Mar 24, 2008

jingjao
  • 252 Answers

SOURCE: My Sharp Friendly series 20V tv has no sound

change the speaker of your tv,maybe it's defected

Posted on Oct 08, 2008

Rifaa
  • 99 Answers

SOURCE: MY SHARP PRIMO TV MODEL 20V L75M IS ASKING FOR A SECRET NUMBER

It may be a parental lock, so u need the code or u have to reset it, check the manual on how to reset it

Posted on Jan 08, 2009

bhatgiri73
  • 106 Answers

SOURCE: my sharp tv model 20V-J100M,,when i turn on green

ba coil around picture tube called as "yoke" is problem sum in ur tv... when copper coils become rusty or cut such problem will come in sharp tv's...

Posted on Feb 13, 2011

caroldon
  • 17129 Answers

SOURCE: My sharp tv model 20V

If your SMPS IC is getting damaged all the time , you can easily source an universal SMPS unit with the required + B voltages to power your TV and this will be more reliable and will not fail as the circuit is much stable.
The failure of the STR is due to poor feedback, poor components int this section or the SM oscillations, or a faulty SM transformer.

Posted on Mar 28, 2011

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1 Answer

My sharp tv model 21V-W70M has no sound, the speaker is ok but no soumd coming out.


Check whether the audio is muted by accidental press at remote control button. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, 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. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
Check the voltage goes to audio amp circuit section.
Check speaker/s [If there is two speakers, both of it should be checked for coil continuity]
Check whether the audio is muted.
If all these are OK, check and replace the audio output IC.

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I have sharp tv lost password how to unlock ?


If you wish to get some details; check the site linked here. Pull up older posts.Surf the site with patience. Unlock procedure to many popular brand TVs are given.
http://electronicshelponline.blogspot.com/

Aug 10, 2014 | Sharp Televison & Video

1 Answer

I have sharp tv model 20v-r70m not power on the b+ is ok i try test 9v supply go to ic801 drop the 9v,then i try replace ic801 nothing happen, how to fix this


pls. check if there has 5v ic regulator... also check the open non- electrolytic colored yellow or orange tantallum capacitor near the talc switches and memory ic.if i'm not mistaken.... the capacitor value is 2.2uf 50v.

Jul 14, 2014 | Sharp Televison & Video

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SHARP TV 21V-W70M CHILDLOCK RESET


TV sharp premo ret race line model no 20 W 70M

Aug 25, 2012 | Sharp Televison & Video

1 Answer

My tv sharp model no.20v j70m have sound i already replace ic amp.tda-7056 but no sound effect


have an oscilloscope? trace the audio. I'm assuming you have a scope if your replacing I.C.s in TVs. make sure your volume is up a little bit when checking the amp section. make sure all wires are connected (speaker too).

make sure tda is getting voltage (view tda7056 datasheet for pinout data)
make sure it isn't an eprom fault

Apr 15, 2011 | Audio Players & Recorders

1 Answer

My sharp t.v 20v-j70m lost power when turn on from red one standby when remoted the yellow will turn off on the screen whats the matter with this?


yung sharp na tv ko 20v-j70m isa no picture but have sound umiinit nang konti yung ic x2933ce ok posibilidad ba po na sira ito

Jul 04, 2010 | Televison & Video

1 Answer

My Sharp Friendly series 20V tv has no sound


change the speaker of your tv,maybe it's defected

Oct 06, 2008 | Sharp 32C-240 32" TV

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