Sharp 20lg30 no pic no sound from tuner, good pic & sound from a/v

pls. check the resistor in series with the crt heater.

Make sure your SAP button is not turned on. This will give you a no audio condition when watching broadcasts thru the tuner. If this doesn't help then your tuner could be defective.

That the board which it have a square aluminun box at the edge of the board with a rounded bolt sticking out for inputs like ANT. input and AV inputs for like wires components inputs like multi colors like YRW,YRWGP holes for AV inputs also have HDMI hubs inputs for the high Def Pic.There are 6 HDMI inputs hubs for the tv Sharp Aquos LC-52d64U.Tvs Tuner board signal boards are also have to been known names to called as the tvs Main Logic boards and the tvs Mother boards also.U are fixing ur tv u must have to take it parts already.U can also compare the pictures between the tv Tuner signal board u are taking aparts out of the tv and the tv Tuner signal board you are buying they'll look axactly alike.The sticker of the serial numbers of the boards a few numbers in the begining on the tv Tuner signal boards should be the same also.

Which is it 9860 or 9800? (No web search hits for the 9800).

JVD Tuner?

The RCA jacks on any amp so-equipped are for any external Line Level source like a tuner.

In any 'connection' question there are at least two participants and specific answers require specific details about all joined equipment.

Type carefully if you want good answers.

The tv Tuner signal board is it shorted and the caused,that the board where ur tv signal cable wire plug in for tv broadcasting air tv stations.This tv Tuner signal board must be replaced,u can do it if u some basic mechanicals skills like take things aparts and putting it back together again?Yes?U tries websites like Shopjimmy.com,Ebay.com to buy a whole tv refurbish tv Tuner signal board for the replacement.Or must get a priced quote by tvs repair shops,replaced an repair by thems.

The tuner is one board but I wouldn't suggest anyone but a qualified technician to replace it.

Well the advise I have for you is the TV is not connected to a good antenna or something is fouled with the sgnal or tuner or both.

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Is it varying the tuning voltage from 0v - 32v as it searches , if not then jungle/micro is faulty or check between tuner and micro/jungle

i don't really know what instructions you expected, although you should have received something for the tuner and amp. I suspect that you are new to playing the guitar, as, I don't wish to sound disrespectful, you would know what to do! So first, and again I hope not to sound like I'm treating you like a dummy, plug the guitar into the tuner input. Or if It's a piezo tuner clamp it to your headstock. Most tuners are now automatic so it should pick up on the string you are striking.Repeatedly pluck the same string til the tuner changes colour, or flashes, or some other indication to tell you the string is at pitch. Repeat the above for all 6 strings.
Then plug the cable into the amp input, switch it on, and bugger about with the controls til you get a half decent sound. ( thats what the rest of us do).Don't expext too much from this package, it is budget level, but of quite good overall quality.hope this helps

Sharps are known for bad tuners and cold solder joints.If you tap on tuner and picture comes back there is cold joints in tuner, If not most likley bad tuner. if the audio is there with blue screen it is the tuner definitly.good luck


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