Having problems with your Standard (CRT) Televisions ?

Collector Voltage at Horizontal Driver transistor is absent


\015 Model CT2020\015

Answers :

You must check an open resistance( bad resistor ) coming from the power supply section going to the horizontal drive transistor collector pin.

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Collector Voltage at Horizontal Driver transistor is absent


You must check an open resistance( bad resistor ) coming from the power supply section going to the horizontal drive transistor collector pin. ... Standard (CRT) Televisions

I have a problem w/ my 29 inch tv, the horizontal output was easily getting hot then after 5 mins of observation the base, emitter & collector becomes shorted, i found out that one of the transistor is already leaked but i don't know what was the exactly replacement of this transistor dd3852. kindly solve it for me pls. thanks & God Bless


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Hi guys am Suteka from Leeukop I have a Sansui TV model no:SV2918 The output voltage is 143V it keeps blowing the Horizontal transistor, How can I reduce this voltages I checked dry joints as well as swollen capacitors and some diodes all seems to be just fine. I will greatly appreciate if you may help me


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Iam having problem with a konka tv model kp2905qyt. there is no EHT but 130 volt is present on collector of horizontal output transistor, pleasse help


This problem has been answered a few while ago. Check the horizotal oscillator frequency. ... Konka Standard (CRT) Televisions

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Eht HORIZONTAL DRIVER TRANSISTOR SECTION PROBLEM


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Am I testing this horizontal output transistor correctly?


Check the resistance between collector and emitter. It should never be Zero Ohms. ... Symphonic Standard (CRT) Televisions

Sir I havea problem with my Sanyo Tv model St-21SF1K, when I turn the power it only blinks the led light. when I check the secondary supply the voltage is there and the horizontal out is good.


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Horizontal transistor Lools like my Horizontal Output Transistor is blown - which one is it that I can replace it - model : SV29276


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Check the frequency at the base of the horizontal output transistor. It should be in betwen 15.5 to 15.7 KHz. If you want more details about service help, try any service help sites. There are so many can be at internet. ... Philips Standard (CRT) Televisions

29pt5301/15 chassis GR2.4AA Dead only flashing red LED standby. 148V on transistor horizontal, and 38V on transistor vertical is ok.


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I have an lg j250r 50in which did not turn on.After searching on the panel i found they were 5 transistor which were short so i replace them from another 42in which had a broken screen.I also took the rf panel from the 42in and put it on the 50in..now its switching on but the screen is not full its just occupying an upper corner the rest is dark.Tried to adjust vs voltage port but no change.Vs voltage is 203v and Va voltage is 58v which seem to be normal.What shall i do? The Rf panel m refering


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Sir, i have onida 21ky thunder series color tv. the set is dead and i have checked the voltage on str 6456 driver voltage its ok , then opto coupler voltage its ok but it it has no output kindly help me


Check all the other components in the power supply section. ... Flat Panel Televisions

Transistor equivalent The TV (Chinese) that im repairing keeps on blowing the diodes (bridge rectifier) and when checking i found that they have used a C5148 transistor for chooping purpose, i thought its used for Horizontal deflection. I do have a D5287 transistor and i was wondering if it could be used instead.


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I have jvc av32150 the horizontal transistor is defective replaced it but after 2 minutes black out again


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Good day!Try to check the base of the horizontal output if have a signal from the chroma or jungle i.c it should have 5-7vac to trigger the high voltage.If no voltage try to hang it and check again if the voltage appear while you hang it, ... Mitsubishi Projection Televisions

SONY TRINITON KV-32XBR15 The picture has collapsed on the left and right horizontal plane. This problem causes an " Horu-Glass" picture/raster display. I have checked for cold solder joints in the Horizontal and Flyback transformer areas. I resoldered every suspected joints. The problem still exists. The Flyback transformer shows a low voltage of 21VDC, it must be 28VDC. Please let me know any sugestions, tks


From your description it sounds like a yoke problem, you describe an hour glass picture which is a classic symptom of the horizontal sector of the yoke is at fault. The easiest way to test for this is a ringer tester, chances are it will show a short ... Sony FD Trinitron WEGA KD-34XBR2 34" TV

I have a pt21 surface mount when i swich on its going off after just seconds and have measured voltage on lineout transistor there is 120 volts is it the collect voltage


1) you have a SHORT CIRCUIT in the power supply., some capacitor, resistor, c. breaker , fuse, or diode. replace or repair.2) test the main switch, can be in short toosee the block diagramGod bless you ... Standard (CRT) Televisions

I have Hitachi 65f710 projection tv, that has no power, I found a thermal fuse open in the power supply, I replaced that; the Tv came on but has no hi voltage, the tv has b+ but not at HOT hight voltage transistor. what else you think can be done. Right now I have no picture Thanks


Try replacing the H-out transistor, if yours is convergence IC type, replace it. hope this help, please rate and vote. ... Hitachi 57F500 57" Rear Projection HDTV-Ready Television

THE NUMBER OF TRANSISTOR OF DEFLEXION HORIZONTAL?


... Toshiba 13 inch TV

Keeps burning horizontal transistor after just replacing it


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My nikai crt tv increases voltage in power supply from 220 to 298 volts and it causes the switching transistor to die.what will be the problem?


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Horizontal transistor c5445 lg 29 inch tv


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