My sharp tv model 20v-w70m has no sound, speaker is working and okay and also the IC but no sound is coming out
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.
Testimonial: "there is input voltage to IC but still there is no sound."
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
SOURCE: My Sharp Friendly series 20V tv has no sound
change the speaker of your tv,maybe it's defected
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
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...
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.
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