Question about Sharp 36R-S50 36" TV

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Broken antenna connector

I'm trying to find out the exact name of the piece where the antenna /cable would be connected to. it doesn't look like
it would be hard to replace. oh yeah, and where can i get one?

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Hi I am Vortash the item you are refering to is just called an F socket here in the UK .. they are available from most good electronic stores but if you wish to get the actual one for your set you should contact the manfacturers service agent and a word of caution from what I can see on the service manual ( unfortunately I dont have a full one ) it is the same socket that a sattelite cable uses .the screw on type or
F socket
But Caution if the earth of this is an earth ground aerial to the set chasis it will have a capacitor or a resistance coupler somewheren usually on the set this is to avoid the socket becoming live .. make sure you dont by pass this in any way if you do any earthed socket you attach to it will blow .. Regards Vortash

Posted on May 21, 2009

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This is called an "F" connector the one you want is circuitboard mount it must be soldered into the circuitboard Radio Shack sells it

Posted on May 20, 2009

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2 Answers

SWR displays briefly then back 1.1


Your problem is not very well described, but let me guess: while you transmit, SWR peaks shortly to a high value and then drops back sharply.
There are two possible reasons:
1) Strong radio transmission pulse somewhere very close to the antenna;
2) Bad contact between connector and coaxial cable somewhere between SWR meter and antenna. Points to check:
- Coaxial connector on the cable from SWR. Is it soldered properly?
- The coaxial cable: can you see mechanical damage, stress? If you find scratches, broken isolation, sharp bends, etc, try to replace the cable.
- Connection between coaxial cable and antenna (or connector): is it soldered properly, is it not corroded or mechanically damaged?
- Connections inside the antenna (if there are any such joints): look for corrosion and mechanical damage, also loose screws.

If you find multiple places of potential problem, go step by step from antenna towards the SWR meter: if the most distant problematic location is fixed and it still shows this strange behavior, go closer.

Rarely this could be a problem in the SWR meter itself. That can be identified if you replace antenna by a dummy load. Dummy load should never cause bad SWR "flashes" (unless it is mechanically broken, too).

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To replace the antenna, you have to remove it from where it connects onto the car, then lift it out from there. The antenna and the cable cannot be separated, it's all one piece. You pull the cable off of the back of radio, and tie a strong string onto it, because when you lift out the antenna, the cable will be pulled out from under the dash and to wherever the antenna is situated and out that hole. Now tie the string onto (hope you had a long string, lol) the end of the cable on your new antenna and cable, and stick the end of the cable into the antenna mounting hole. Pull the string from under the dash by the radio and you will bring the cable back into the dash and where you can plug it into the old radio and listen to good old music again !

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If you've tried all positions with antennae, booster switch is on, and are sure you have all settings on TV correct, try running an alternate cable directly from antennae head to back of current plate where your co-ax from antennae is attached. That will tell you if you have a bad cable or connection from antennae to plate inside. Just get a piece long enough to go through door or window to current spot where connected. If that doesn't cure it, then it's a head or booster switch problem. You can even by-pass the booster and go direct to TV to see if any better.

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There is no signal but if I move lead in aerial socket the signal comes back for a second but goes when stop pushing it up. It seems there is an issue with the aerial input on the tv as I have tried a...


It's either a bad antenna cable (most likely), or the F-connector socket is broken or has come un-soldered inside the se (possible)t. First, try exchanging your antenna cable with a new one. They're inexpensive and tend to fail over time anyway. If that doesn't solve the problem, a technician will be needed to repair or replace the F-connector (the screw-on connecter where the antenna connection screws in on the back of the set). If you're good with a soldering pen and have a nearby electronics store where you can buy a new F-connector socket, you may be able to do it yourself, as it's a very simple repair. If you do not have the skill to make the repair, don't fear, it shouldn't be very costly to accomplish.

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1 Answer

The antenna/cable in threaded piece has come out of the back of the tv. How can I fix that. I tried to put it back but it won't stay. I think I need a new one.


These sets have what is known as a on board Tuner. This means that the Tuner is not replaceable without replacing the entire Board. The good news is that you can replace the Cable/RF connector as long as the shield it attached to is not broke or too bent. Most of the Cable/RF connectors used in these sets have PCB mount . You will have to remove the Signal Board and unsolder the center connection of the broken connector left on the Board. Remount the new
Connector and solder the center connection. You may need a collar nut to secure the Connector the the shield.
I hope this helps,
Skyassoc

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re connect piece or new piece with soidering iron done it many times for friends

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Cannot connect zenith vcr to zenith tv thru cable box


Hello mcgillicu390,

From your VCR you should have an (RF OUT) and an (RF IN) Connector (these also might be marked as ANT IN and ANT OUT, or CABLE IN and CABLE OUT).

The same goes for your TV (RF IN), (ANT IN) or (CABLE IN).

Now, take your Coaxial Cable (Cable with screw on or Push on connector with a wire in the center of it) and connect it to the TV (RF IN), take the other end of the same cable and connect it to the VCR (RF OUT).

Then connect your cable TV set top box or antenna to the (RF IN) of the VCR.

If you are using a cable box set your VCR and TV to Channel 3 or 4 (depending on your area)

If you are just using the VCR and an antenna set your TV to channel 3 or (depending on your area).

That should do it for coaxial connectivity.

If you are using the composite video and Audio cables to connect to your TV here are the directions for that.


Looking at the back of your TV you will see Three RCA type connectors colored as Yellow, White, and Red. Yellow is Video, White is your Left Audio, and Red is your Right Audio. They should be marked as (Video IN), (R Audio IN), and (L Audio IN). *note these markings may not be exactly like what is written, however the indicators should be close to what you are seeing.

Now look at your VCR, you may see a lot of RCA Connectors (up to 6 of these connectors) don't worry, you are only looking for the ones that say (Video OUT) (R Audio OUT), and (L Audio OUT).

Once you find the connectors on both pieces of equipment, take the Yellow, Red, and White tipped cables and plug the in their respective jacks Yellow tipped cable connects VCR (Video OUT) to TV(Video IN). Red tipped cable connects VCR (R Audio OUT) to TV (R Audio IN), and finally White tipped cable connects VCR (L Audio OUT) to TV (L Audio IN),

Once the cables are connected you will be able to use the composite selection on your remote to view the images from your VCR, the VCR in this case will be acting as the tuner for your TV with out you having to set the TV to channel 3 or 4, you will just have to use the AUX or whatever setting on you remote that allows the composite video to display.

I hope this helps,

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

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1 Answer

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If the connector end is not damaged and the tuner circuit board is not broken, you can solder this back onto tuner, and solder the end back on the circuit board. You should take the tuner out to do this proceedure. A TV shop usually charges $50.00 to do this.

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