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Horizonta transistor - Televison & Video

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Angel, your questions is not clear. Can't give much response without more info. What brand & model TV? What is the problem? Why do you think it is the horizontal trnasistor?

Posted on Nov 26, 2014

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Posted on Jan 02, 2017

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SONY TV MODEL KV21GSR1,single horizonta lin accros th screen


Vertical scan output section circuit fault. Check and replace the damaged component/s at this section. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/

Jul 11, 2014 | Televison & Video

1 Answer

Lg 42pc3d


What is the problem you faces with this TV. Loss of vertical and horizontal synchronization? If so, the video processor IC should be checked and replaced. If you wish to get more details, check this site linked below. Pull up older posts there. Check the site with patience, as it has over 2350 posts now. All are related to electronic equipment repair help. If you search the site in Timeslide option, which can be selected from the drop down list at the top left of the display window, it will be easy to locate the related post. You can also do a search by type in the brand name and model number to your device into its search box at the top right of display window.http://electronicshelponline.blogspot.com/

Apr 25, 2013 | Televison & Video

1 Answer

The picture wont come on, power is on but screen is black


this a lack of RASTER, TEST AND measure a) , fuse, c. breaker, transformer, filter, diode, rectifier, IC voltage regulator +horizonta output transistor, HV rectifier, and Flyback HV.
God bless you

Oct 11, 2012 | Mitsubishi WS-73907 TV

1 Answer

Display flipped vertical


Hi, i'm not 100% on yours, but this may well lead you in the right direction, if you right click on your desktop, a menu will pop up, select personalize, then select - display settings and do it in there.
I have nvidia control panel and i can do it in there.
There may be a short cut key, if someone else reading this might like to clarify.
Try -
ctrl - alt and arrow key to turn 90 degrees
I hope this has helped you, if you need more help please ask.

Jan 30, 2010 | Acer Aspire One PC Notebook

1 Answer

Screen


Probably the display driver is messed up. Best option is to reinstall the operating system.

An alternative is to have a Linux-savvy friend try to boot it up
with a Linux-live rescue CD to see if that fixes the display problem and maybe to salvage your personal data from the hard drive.

Feb 14, 2009 | IBM ThinkPad 600E 2645 Notebook

1 Answer

My Pioneer 55 inch screen tv SD-P5553 has a solid black horizonta


This sounds like a picture mode issue. You maybe in a ZOOM mode. Try adjusting your set to FULL mode. If you are using a Sat receiver or cable box, some of these may have picture viewing mode as well, wich may need to be set in FULL or NORMAL viewing mode.

Good Luck!

Jan 18, 2009 | Pioneer SD-P55A3-K 55" Rear Projection...

1 Answer

No sound coming from speakers Blaupunkt GTA470 Amp


Amp Failure:
There are many different ways that an amp can fail but the two most common failures are shorted output transistors and blown power supply transistors (< those are not blown). There are several types of protection circuits in amplifiers. The most common are over-current and thermal. The over-current protection is supposed to protect the output transistors. Sometimes it doesn't work well enough to prevent the failure of the output transistors but it will work well enough to shut the supply down before the power supply FETs are destroyed. If the amp remains in protect mode, goes into protect mode or blows the fuse as soon as the remote voltage is applied, shorted output transistors are almost certainly the cause. If the fuse protecting the amp is too large, if the protection circuit doesn't respond quickly enough or if the power supply is poorly designed, the power supply transistors may fail. If you see a lot of black soot on the power supply transistors (near the power transformer), the power supply transistors have failed. Soot on the board doesn't necessarily mean the transistors have failed. Sometimes, technicians don't clean up the mess from a previous failure. Transistor Failure/Checking Transistors:
In general, when a transistor fails, it will either short (common for output AND power supply transistors) or open (common for power supply transistors). Transistors act like valves. They control the current flowing through a circuit. A shorted transistor acts like a valve that's stuck open (passing too much current). In the case of an output transistor, the shorted transistors tries to deliver the full rail voltage to the speaker output terminal. If you've ever seen a damaged amp that pushed or pulled the speaker cone to its limits when the amp powered up (common on some Rockford amplifiers), that was almost certainly due to a shorted output transistor. When checking transistors, you most commonly look for shorted connections inside the transistor. You do this by using a multimeter to look for low resistance connections between the transistor's terminals.

Dec 31, 2008 | Blaupunkt PCA460 Car Audio Amplifier

1 Answer

Amp turns on just fine but no sound comes out


Amp Failure:
There are many different ways that an amp can fail but the two most common failures are shorted output transistors and blown power supply transistors (< those are not blown). There are several types of protection circuits in amplifiers. The most common are over-current and thermal. The over-current protection is supposed to protect the output transistors. Sometimes it doesn't work well enough to prevent the failure of the output transistors but it will work well enough to shut the supply down before the power supply FETs are destroyed. If the amp remains in protect mode, goes into protect mode or blows the fuse as soon as the remote voltage is applied, shorted output transistors are almost certainly the cause. If the fuse protecting the amp is too large, if the protection circuit doesn't respond quickly enough or if the power supply is poorly designed, the power supply transistors may fail. If you see a lot of black soot on the power supply transistors (near the power transformer), the power supply transistors have failed. Soot on the board doesn't necessarily mean the transistors have failed. Sometimes, technicians don't clean up the mess from a previous failure. Transistor Failure/Checking Transistors:
In general, when a transistor fails, it will either short (common for output AND power supply transistors) or open (common for power supply transistors). Transistors act like valves. They control the current flowing through a circuit. A shorted transistor acts like a valve that's stuck open (passing too much current). In the case of an output transistor, the shorted transistors tries to deliver the full rail voltage to the speaker output terminal. If you've ever seen a damaged amp that pushed or pulled the speaker cone to its limits when the amp powered up (common on some Rockford amplifiers), that was almost certainly due to a shorted output transistor. When checking transistors, you most commonly look for shorted connections inside the transistor. You do this by using a multimeter to look for low resistance connections between the transistor's terminals.

Seems as you have blown an output. Seek repairs.

Dec 29, 2008 | Power Acoustik A3000DB Car Audio Amplifier

1 Answer

Double- Vision


More than likely your akai has defective stk392-040 Convergence chips . it also may have open resistors generally 3.9 ohm flame proff. this board is attached to the top left looking from the back of the set it is screwed on by 1 screw black in the center . after installation this will probably half to be converged dinamically. which means you will half to get to the grid this is done by using the remote press mute 183 quicly to enter numbers on thew remote 2 to adjust red 4 to adjust blue horizonta 6 to adjustred vertical and 8 to adjust red vertical using center button to go up and down

Feb 20, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Printing prolem


Really only two things cause this issue. The fuser or the drum.

I would replace your cartidge...if that does not resolve the issue...look to your fuser as the culprit.

Good luck my friend.

SeekPCRepair

Feb 09, 2008 | Apple LaserWriter 12/640 PS Plus Printer

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