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TVs

Samsung 29 inch TV screen with rainbow! (Led flashes 9 times)

tonga88
hace 5 años
hace 5 años
Hello friends, I wanted to know if you can tell me how to face the failure of my TV, the TV turns on and the audio is heard but there is no image on the tube and the power LED flashes 9 times! I leave a picture of the board! Upgrade: Solve the horizontal transistor and change a 200v 220uf cap and keep flashing the LED 9 times, now the TV turns on but the problem I have is that the image is not seen instead it looks like a kind of rainbow and the sound is heard background audio !! I clarify that when I change the channel the screen darkens but nothing is seen, in the rainy channels the brightness increases and decreases I leave a picture:
victor flores martinez
hace 5 años
hace 5 años
Hi See if it turns on filaments, try uploading screen (measure this voltage approx 350v) Comment results
tonga88
hace 5 años

Good and thanks for answering, solve the horizontal transistor and change a 200v 220uf cap and keep flashing the led 9 times, now the TV turns on but the problem I have is that the image is not seen instead it looks like a kind of rainbow!!
I leave a picture:

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victor flores martinez
hace 5 años

Measure voltage in each of the vertical ic pins and upload results

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tonga88
hace 5 años

Oks, it's too late in my country, tomorrow I measure and upload the results!
A doubt, the negative leg of the multimeter put it in the chassis of the tuner to measure the voltages of the vertical ic?
Greetings and thanks in advance

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victor flores martinez
hace 5 años

So is

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tonga88
hace 5 años

Hello friend, I commented that I prepared to measure the voltages of the vertical ic and I found myself with cold welds, solved and the TV worked first! The intensity of the video image goes up and down a bit and the LED continues to flash 9 times when it turns on but it already works that is the important thing !!
Thank you very much for the help and the good predisposition.
Close the subject.
I clarify in case someone happens the same as to me that the problem was cold welds in the horizontal transistor so it did not turn on and the problem of the rainbow was cold welds in the Vertical Deflection ic.
Greetings gra

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