The audio output on my Sharp LC-37SH20U seems to be shorted, does the board have to be replaced, or can it be repaired?

The Sharp LC-32B23U does not have a headphone (3.5 mm) jack. See the specifications here: https://www.cnet.com/products/sharp-lc-32sb23u/ . It has an optical digital audio output. To connect your headphones, you could use a digital audio to RCA audio converter. See https://www.amazon.com/optical-rca-converter/s?k=optical+to+rca+converter for some converters. Then use RCA audio cable to connect to an RCA (2 F jacks) to 3.5 mm F adapter. (If your headphone has a detachable cable, you could use an audio adapter cable with 2 RCA M plugs on one end and the 3.5 mm M plug on the other.

I hope this helps.

Cindy Wells

It will depend on the devices. Most VCRs will have composite and S-video outputs. For this you will need either a composite audio/video cable (3 RCA plugs on each end: yellow (video) and red and white (audio)) or an S-video cable and a separate audio cable. The DVD player will probably have component video or HDMI outputs, depending on its age. The component video requires a 3 plug RCA video cable (red, green, blue) and a 2 plug RCA audio cable (red and white). Some DVD players have composite outputs as well. However, this limits you to an SD video output and isn't recommended, unless your TV doesn't have any HD inputs.

If your TV has one each of the appropriate input ports or 2 composite video ports, you just need those cables, assuming you have no other devices that have filled the inputs. Always connect the devices with the TV and the A/V components off. Match the color of the plug to the port. If you mix up the colors on component video cable, you may get a black&white picture. Some newer TVs use an adapter dongle to convert composite or component video to single port on the input board. Again match the colors at the dongle and then plug in the adapter. If your TV has shared composite and component signals, use the HDMI port output on the DVD player, if possible, or get a Audio/Video switch, like this: http://www.amazon.com/Panlong-Switcher-Composite-Selector-Consoles/dp/B00KXVBB3Q/ref=sr_1_24?s=audio-video-accessories&ie=UTF8&qid=1440632814&sr=1-24 .

Please add a comment with the make and model of your specific TV, VCR and DVD player. I hope this helps.

Cindy Wells

How To Connect a DVD Recorder to a Television:
1.If you want to use higher quality cables, then you may want to connect the TV Source (Cable and Satellite only, not Antenna) to the DVD Recorder using Composite, S-Video or Component video and audio cables.
2.To use composite cables (also known as RCA, the yellow plug is video, the red and white plugs, audio): Plug in the composite cables to the RCA outputs on the back of your TV source and then plug in the composite cables to the RCA inputs of the DVD Recorder. Then connect the RCA outputs from the DVD Recorder to RCA inputs on the TV.
3.To use S-Video and RCA audio cables: Plug in the S-Video cable to the S-Video output of the TV source. Plug in the S-Video cable to the S-Video input on the DVD Recorder. Next, connect the RCA audio cable to the output on the TV source and the input on the DVD Recorder. Finally, connect the S-Video cable and the RCA audio cable to the output on the DVD Recorder and the input on the TV.
5. To use Component Video cables and RCA audio cables: Connect the Component Video cable and the red and white RCA audio cables to the outputs on the TV source and the inputs on the DVD Recorder. Next, connect the Component Video cable and RCA audio cable to the outputs on the DVD Recorder and the inputs on the TV.
6. Now that the TV source (either Cable, Satellite or Antenna), the DVD Recorder and the TV are all connected, you need to configure everything to make sure that TV is coming through the DVD Recorder, for recording and viewing.
7. Turn on the Cable Box or Satellite Receiver, TV and DVD Recorder.
8. If you connected everything using the RF connections then the TV should be passing through the DVD Recorder and displaying Television on the TV screen. To record in this mode, you would need to tune to either channel 3 or 4 on the TV and then use the DVD Recorder TV Tuner to change channels and record.
9. If you made connections using either Composite, S-Video or Component cables, then to view or record TV, two adjustments need to be made. First, the DVD Recorder needs to be tuned to the appropriate input, typically L1 or L3 for rear inputs and L2 for front inputs. Second, the TV also must be tuned to the proper input, on a TV usually Video 1 or Video 2.
10. If you have a Dolby Digital 5.1 Surround Sound A/V Receiver you can connect either a Digital Optical Audio cable or Coaxial Digital Audio cable from the DVD Recorder to the receiver to listen to audio through the receiver.

unplug it and hold the the volume down and channel up button for 20 seconds after that plug it back it in while still holding the buttons

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.

There are lots of inputs on the back behind the cover. Three inputs (1, 2, 3) have an S-video, composite video (A/V) and component video jacks. The cover will come off if you press the two top hook at the top of the cover. Then rotate the cover towards you. There are also a DVI-D port and 2 coax (antenna in) jack. The tuners included are for NTSC (analog OTA) and CATV (analog cable). The front of the PC (VGA) and a S-video or composite (A/V) video input (called Input 4).

Composite and component video jacks are all RCA jacks (as are the associated audio jacks for the input). Composite cables uses three RCA plugs on each end - yellow for video, red and white for Right and Left audio. Component video cables have three plugs on each end that just carry video (red, blue and green); the audio is wired separately with just 2 RCA red/white plugs. Match your colors from the device out to the TV input.

Changing inputs can be done with the remote or the input button on the top of the TV. The input button is to the left of the power and Main Power buttons.

Connecting your game system, cable system and all will depend on the units. For the best picture, use component video cables for mose set top box. Some cable boxes have a DVI port - use that if the box has that option. If they do not have component video out, then use composite or S-video cables.

The owner's manual is available from Sharp as a pdf: http://www.sharpusa.com/CustomerSupport/ProductDownloads.aspx?downloadtype=ownersmanual . Use the drop down menus as follows > LCD TV, Model not listed, LC-30HV4U then click Search. The picture of the inputs are on page 10.

I hope this helps.

Cindy Wells

It audio processor is part of the main board, you may have to replace the main board otherwise will have to troubleshoot down to component level.

The main video backlight board is dead,must be replaced.

I think that you just have a defective tv and should return it and get a different one.



Things to try before returning it are.

1. Pressing audio on the remote to toggle between Mono, Sap, etc. settings and see if any of them improve the audio

2.


3. Download the manual here -> http://www.retrevo.com/search/v2/jsp/downloadPage.jsp?doc=202375cfd4595c46604e771e6c8300db&q=Sharp+LC-37SH20U&e=1

refer to page 19

Let me know what you try and if none of the above works, let me know and we can try further options

thanks

Ur main video backlight board is dead,must be replace.Try this website,Shopjimmy.com buy the board for $163,replaced it ur tv will work again.