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Tube TVs

hipson tv 25htv-h105nfs

carrizo oscar julio
hace 5 años
hace 5 años
white screen with delay lines without image or sound only the screen only opens halfway does not open all. change the vertical ci and some devalued electrolytes the voltage that reaches the ci vert 27v leg 3 and 6 thank you in advance for your help.
manolo karvalo
hace 5 años

Hello Friend. check the 10ufx250volt filter. Or it can be 22ufx250volt. and if the failure persists check the abl. and the socket can have loose welds on the pins.

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manolo karvalo
hace 5 años

friend. what number is the ic. vertical

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carrizo oscar julio
hace 5 años

The CI Vert is the 7841

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manolo karvalo
hace 5 años

friend. The tendency that ic.vertical la7841 should have is pin 1- gnd. pin 2- 13.8volt. pin 3- 26.2volt. pin 4- 2.4volt. pin 5- 2.4volt. pin 6-25.7volt. pin 7 - 2.3volt. This is because you indicate that TV. does not open and the above is because you indicate that you have delay lines

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manolo karvalo
hace 5 años

friend. Remember that you have to change the filters that are related to the ic. vert.

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manolo karvalo
hace 5 años
hace 5 años
Hello Friend. check the pins of the socket may have cold welds on the pins, if the fault persists check the abl. and the 10ufx250volt filter. Or it can be 22ufx250volt. Cheers
carrizo oscar julio
hace 5 años

the 22uf x250v filter is fine 200v of the tube plate are those that are not there are the red out green out and blu out pulses that leave the jungle that would have to measure red out = 2.49, green out = 2.13 blu out = 2.3 give me, red out = 0 blu out = 0 green out = 0, abl = 4.6, and change the ci vert the voltages in ci vert are: pin 1 = gnd
pin2 = 18v pin3 = 27v pin4 = 2.5 pin5 = 2.5v pin6 = 27.2v pin7 = 1.6v

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manolo karvalo
hace 5 años

friend. You have not done all that is indicated, I told you about the socket, you solved, the plate about the abl, and the ic.vertical is a bit well

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carrizo oscar julio
hace 5 años

if you solve the whole plate and the socket too

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carrizo oscar julio
hace 5 años

devalued filters of + b and abl of 22uf 250v were changed solving the problem

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