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