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Sharp primo 21V-W70M service manual

No sound output

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Service manuals are in PDF and cannot be included here by this window. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/ Pull up older posts.

Posted on Mar 30, 2014

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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.

Oct 02, 2015 | Sharp Televison & Video

1 Answer

Sir do u have an example of sistimatic diagram of sharp primo 21V-W70M ?


http://elektrotanya.com/sharp_20lk31_20lk61_chassis_sn-70a.pdf/download.html

Nov 26, 2014 | Sharp Televison & Video

1 Answer

What problem of sharp crt 21v-w70m dropping voltage in b+ to 80v when i turn on


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Do a search by type in the brand name of your device at its search box.

Jul 24, 2014 | Sharp Televison & Video

1 Answer

No power sharp 21v-w70m


Short circuited component at its main board. Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Give a special attention to its horizontal output transistor. Replace it, and check. Check this device for collector to base, or collector to emitter leak. Even a slightest leak, will cause sivere problem.

Apr 16, 2014 | Televison & Video

1 Answer

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


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.

Dec 31, 2013 | Sharp Televison & Video

1 Answer

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

Primo sharp 21v-L70m model the problem is always on standby and cannot power on the unit.


These sets are quite outdated, there are fewer and fewer repair shops out there for them.
The problem is most likely the power supply (internal), this can be repaired quite simply if you know what to look for. Other problems may or may not include a blown IC, fuse, lamp, or the tube itself.
The cheapest option you've got is to buy a new TV I'm afraid.

May 11, 2011 | Sharp 25R-S100 25" TV

1 Answer

Diagram of sharp 21v-L110M


Hi there. It will cost you $15 but you can get a full service manual for this device at the following link.
http://www.sharp.owner-manuals.com/21VL110M-service-manual-SHARP.html

Mar 24, 2011 | Televison & Video

2 Answers

21V-W70M primo sharp black out


check the regulator maybe its busted

Mar 04, 2010 | Sharp 25R-S100 25" TV

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