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Request part id cap c104 in the L.O.P.T stage Model CT-M805SR teac ctv it is in the collector of the horizontal drive tansistor

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Posted on Jul 25, 2008

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What's the cause I already install three horizontal output of Samsung TV model number CT-15N30MJ always busted horizontal transistor?


Check the capacitor connected to the collector of the horizontal output transistor to ground for loose solder or open. Replace that freewheeling capacitor [ usually comes between 3900Pf to 9600Pf 2000V]. Replace it with an other one of same capacitance value; before proceed. Even if it blows out the horizontal output transistor; entire circuit should be checked. Check the deflection coil too for shorted winding.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Apr 26, 2015 | Samsung Televison & Video

1 Answer

Onida igo 20 '' ctv t v 110 voltage one second


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Check the horizontal output transistor for collector to emitter leak.

Sep 18, 2014 | Televison & Video

1 Answer

No horizontal and vertical deflection available:- audio OK


Check its horizontal output stage circuit. Replace damaged component/s. Vertical output stage gets its working voltage from the horizontal output transformer. If you want to get vertical deflection, this transformer, otherwise known as {LOT] should work to produce the supply voltage to vertical output stage.

Oct 12, 2012 | Panasonic CT-2789VYD 27 inch TV

1 Answer

My panasonic the fuse was blown out the cap 200v 560 mf and a resistance 1 ohm 7w i replaced them and the tv won't turn on


This is fairly straight forward---if it got the fuse, input filter (big cap!) and the fuseable 7 watt-----

Understand (I do not know how savy you are) the power supply uses two grounds----on the primary side of the transformer (in power supply) it is from earth ground and on the secondary side from hot ground--when checking voltages= these are the key! you have to be on the correct ground to get correct readings.

Follow the money---the primary raw should be on that cap---follow it to see when it stops downstream.

220 can pop a lot of things---the set should also have a regulator IC in the power supply (could also be a big transistor) and if a chip--raw from that cap goes into it---and regulated comes out another pin---see if you have the raw and then see if at horizontal output collector and from there to flyback( with set off what is resistance reading from the collector of the output transistor to earth ground?

what kind of experience do you have with troubleshooting?

Mar 22, 2012 | Panasonic CT-32SL14 32" TV

1 Answer

Will power up only after the power cord unplugged and plugged back in to the outlet. Then shuts back off again. CT-36HL42CF.


High voltage too high going into xray protection. Check the collector of the horizontal output transistor for 130v dc.

Oct 10, 2011 | Panasonic CT-36HL42 36" TV

1 Answer

Audio and picture go dead red light blinks 7 times


A protection circuit has cut in - possibly due to a fault in the line output stage (flyback transformer could be short-circuit and horizontal output transistor could also be shorted).

Assuming the power supply/HT rail is all OK, replace the above parts, touch up any suspect solder joints, check and replace any capacitors (electrolytic and the tuning caps in the collector of the horizontal transistor - always replace these caps (rated at around 2kV - 6kV) whenever you replace the flyback)

Jan 24, 2011 | Sony FD Trinitron KD-36XS955 36" TV

1 Answer

Hi My toshiba CX36H60 has a problem -- no picture but sound is good. what could be the issue and how to rectify it. Please suggest.


As sound output is ok, main board is correct with respect to sound output, video IF and ther stages. The fault lies on the horizontal output section. It may be LOT fault. Check it further for horizontal oscillator stage, and horizontal output stage. Check the collector voltage at the horizontal driver transistor. If you have a frequency meter, check the frequency of that point. It should be somewhere near 15625Hz. If the frequency there is Ok, then proceed to horizontal output stage. Check the horizontal output transistor. If it seems to be faulty, replace it with similar type and number. If the replaced horizontal output transistor heats abnormally within seconds after swich on the set, surely LOT has troubel. Replace it also with same model mumber and type.

Oct 16, 2010 | Toshiba CX36H60 TV

3 Answers

HORIZONTAL OUTPUT TRNSISTOR SHORTS WHEN POWER ON TV


ALL the next is with the tv unplugged (NO NO power)
  • resold the jungle (video processor) all around
  • following the horizontal drive pulse path and arriving to the horizontal area just after the horizontal transformer and in the base of the horizontal DRIVER there is a electrolytic capacitor (if this chassis uses this one,) Change it (maybe is dry)
  • solder all components i just told you in the last step. horizontal driver, transformer, etc
  • remember:
  • if a transistor is blowing with no reason (there is a reason: the collector receives 130 volts but cannot hold it forever, It has to be in some place. if the switching pulse doesn't arrive to it the transistor throws this 130 volts and burning itself. i hope it is help full.

Apr 15, 2009 | Televison & Video

1 Answer

Teac M805SR TV Screen curving out at the sides


Hi

your Unit have defective. horizontal Streach.. a buldge Capacitor or Leak Capacitor This is the result. Replace the Capacitor to back to normal

Thanks
Likha!

Sep 25, 2008 | Televison & Video

1 Answer

Hi there


Check your DVD or Video player manual for regional setting, you may simply be set to the wrong region. Some players have a regional button on the remote control.

Regional settings allow DVD's or Videos to be played on the same player by simply selecting the correct regional setting.

If you are on the wrong regional setting, your picture will most likely appear in black and white.

Jan 12, 2008 | Televison & Video

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