Question about Toshiba 32A33 32" TV

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Tuner The tuner board has been broken where the ant.cable is pluged in. A small portion is missing if I could get a good picture it could be repaired.

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Re: Tuner

No the tuner may be damaged and have missing SMT parts. replace the tuner part# 23321435

Posted on Jan 20, 2008

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Toshiba lcd ant cable problems

1) you must repair the ant cable, see if the cable is open or break test with VOM, this can produce erratic problem.
2) you have the options to go to the repair shop TV for fix.
3) clean the contacts antenna TV, for dust, dirty or oxide.
4) repair any broken wires and solder.
5) of course you have the probably problem of some problem inside of TV example, TUNER, i-f,video detector, AGC. test it see the diagram
God bless you

Jul 12, 2012 | Toshiba CF36G40 36" TV

1 Answer

I have a Toshiba CF27H50 that just stated losing the picture after about an hour of viewing. After an hour, it starts to flicker and then the picture just is lost and it just goes to black/snow screen and...

This is a common symptom of tuner trouble. A common problem is bad solder connections inside. As the set warms up, small cracks on joints from the tuner circuit board to its metal case can cause the trouble you describe. If you tap on the TV or wiggle the connector where the antenna or cable line goes, the picture will sometimes pop back in if this is the case. It's also possible the tuner has parts that quit working as they warm up. The only way to know for sure is to remove the tuner, check over the connections, repair any that are iffy, and see if the trouble continues. This is not a repair for a do-it-yourselfer, though, because of the soldering involved.

If the trouble isn't bad connections in the tuner, there's not much you can do. I've checked the parts sources I use. The original Toshiba part is no longer available and I haven't found any replacement. If you're using a cable box or other video source, you can keep using the TV just for its AV inputs and not worry about the tuner any more. Otherwise, given repair labor cost and lack of parts, it's probably more economical to replace this TV instead of trying to repair it.

Jul 22, 2011 | Toshiba CF27H50 TV

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The cable connector has been broken off from the outside, is there any way of fixing this without replacing the entire board

Yes...if you can remove the board from the TV safely. You will have to unsolder the tuner. Then remove the sides of the tuner to inspect the damage. You will need to replace the RF connector with an RCA part #215543. On another note, find an old TV repair shop and see if they can salvage a tuner from an identical TV. This is actually faster and easier to repair. Note this, just replace the tuner, not the main board. The salvaged unit may not be serviceable. Thanks for asking and show all hands of support!

May 16, 2011 | Zenith B32A24Z 32" TV

2 Answers

The cable connector has been broken off. is there any way of fixing this without replacing the entire board

With most tv's I've serviced, the cable connector is connected directly to the tuner module. The tuner module may be damaged beyond repair, depending upon how much physical force was applied to the cable connector. I would take it to a reputable repair shop and let them provide you a honest estimate of repair. They may be able to resolder the cable connector to the tuner module.

May 16, 2011 | Zenith B32A24Z 32" TV

1 Answer

The cable connection on my tv broke off how can I connect back to the cable

On most TV sets, the cable connector (also called an F-connector) is just press-fitted into the metal housing of the tuner (which selects the channels). It's not very strong mechanically and is pretty easily broken by tripping over the cable, moving the TV if the cable is too short, or often by cable technicians who overtighten the cable connection with a wrench.

The good news is that this can be fixed. There are two ways. The simple method is to replace the tuner. It's quick but costly as a new tuner may run $100. The second way is to replace the broken-off F-connector. On some sets it's possible to do this without removing the tuner, but not always. This repair may take a little more labor time, but saves the cost of the tuner.

Either way, this is a repair that's best left to a professional. Without the soldering skills and equipment needed, it's possible to do major damage to the TV and tuner circuit boards. I would recommend getting an estimate for the repair from a shop in your area. Yes, there are still places that fix TVs, but they are getting scarce.

Another possible "fix" is to forget about using the TV cable connection and use a VCR or DVR to tune the channels, and just use the TV's video and audio inputs. It doesn't repair the TV, but it gets you back onto the cable.

I hope you've found this helpful. Thanks for using Fixya!

Jan 31, 2010 | Samsung TXM3297HF 32" TV

1 Answer

Cable female adaptor is missing

The small metal box is the tuner. The tuner has to be removed to replace the broken off RF connector. The connector has to be soldered to the tuner housing (metal box) and the leg of the connector has to be soldered to the circuit board, board has to be checked for cracks or if it is broken. If board is damaged the tuner will have to be replaced, if its available.

Aug 17, 2009 | Emerson EWF2703 27" TV

1 Answer

Sony Trinitron - Model KV35S66

The tuners in many Sony sets often develop bad solder connections that can cause this kind of tuning trouble. The tuner can be replaced to fix the problem, and it's also often possible to repair it. To repair the tuner, it needs to be removed from the board in the set, the cover removed, and all the connections from the tuner circuit board to the metal shield can need to be resoldered. The metal can is used as the ground connection for many places on the tuner, and the connections develop cracks and become intermittent or fail completely. When you use the video input, you bypass the tuner so you have the nice clear picture.

This repair should be handled by a technician who's experienced with soldering on small circuit boards. Improperly done, this repair can do more damage to the small, closely-spaced circuit board traces. Many technicians would rather simply replace the tuner than do the repair. Depending on the price of the part and how labor is charged, it may cost the same either way.

May 12, 2009 | Sony Standard (CRT) Televisions

1 Answer

How do we adjust our tv

You didn't mention anything about a cable box, VCR, etc. which might be connected. A snowy pic. means simply, inadequate signal is reaching the tuner, or the TV tuner itself is bad. If the first is so... check your cabling. If you have a VCR or DVD player hooked in between the cable box or outside antenna (whichever is the case), VCR (RF or ant.) out should go to the TV, VCR antenna (RF or ant.) input to the cable box. Also check the cable wire itself. If you look at the end of the cable, you should see a relatively thin center wire. This center conductor is what carries the signal. If it is missing, bent over, or too short to make contact with whatever it is connected to, you will have a very snowy pic. If you have a spare TV, connect it in place of your "new" TV, to narrow down the problem. Lastly, if all is well with hookup, cabling, etc. the TV might have a problem. Sometimes the tuner has a component defect, or the coaxial connector can be broken.

Sep 25, 2007 | Standard (CRT) Televisions

1 Answer

Missing Cable Connector

After you remove the tuner from the main board and remove the 2 covers from the tuner, straighten the metal side of the tuner where the hole is for the F connector. If you look at the PC board inside the tuner, there is a small hole in the board directly under the hole in the metal for the F connector. Usually there is a small piece of the old F connector's center pin still soldered in that hole. If it is there, unsolder it and throw it away. The new F connector will be soldered in place over the hole in the side and a small jumper wire soldered from the center pin of the new F connector to the little hole in the PC board directly under it. Be careful when soldering on the tuner's PC board because the parts are extremely small and close together, and lost SM parts and solder bridges are possible. Be sure none of the coils in that area have been squashed over, which is what I usually see when the costomer sticks something in the hole left in the tuner. If the coils are squashed, you can straighten them with a small pair of tweezers or remove them and rewind then around the proper size drill bit. Let me know how you make out.

Aug 09, 2007 | Sharp 27N-S50 27" TV

1 Answer

No picture or sound - think the tuner is bad

You may either have a bad tuner in your TV (not unusual for Sony's) or a broken connection near the tuner on the flimsy circuit boards they're using on this model. The tuner requires about 30 volts DC to work, and this may not be reaching the tuner due to a crack in the board connection. You probably have several A/V inputs that can be used for cable video and DVD video and your owners manual should explain how to connect them clearly. The outputs of those units go into the inputs of the TV set. It's That Simple!

Jan 24, 2007 | Sony FD Trinitron WEGA KV-32FS100 32" TV

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