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TVs

Philips 14PT4131 / 77R, does not turn on the tube !!!

robert 2015
hace 5 años
hace 5 años
Good morning colleagues, I am struggling with the 14 "TV I tell you the TV I enter because there is a lack of audio when changing the audio is d and I changed a zener of 2.7 v I leave the tube without image or understand the filament! 95v It is the most + bd which I have 93v I have other voltages but I lack the main ones 160v and 6.5v for the filament I can not find them could give me a hand since the philips are for the chusos I am new hehe
robert 2015
hace 5 años

I'm going to check welds in that friend zone but I comment that almost all the board has been solved and if the flyback leg 9 would have to leave the 160v and the leg 5 the 6.5v but n is feeding xq the tube is energized but n march

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El LInce
El LInce
11.610
hace 5 años

Hello friend, the diode that you changed did not turn it upside down, notice why you changed it, it was bad, the audio ic you put the same nu

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robert 2015
hace 5 años

hello friend look I just changed layers to solve the serca part of the vertical and now I have 159v but I do not turn on the filament and a little while and protect me also n voltages arrive to BD136 to Bd135 arrives 45v

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robert 2015
hace 5 años

neg2013 ... place the IS an7522N again apparently, remove diode in4148 and puce a new one the problem started when cmabie a 2.7v zener cmd soldered it well but once I turned it on I did not light the tube just that diode brought and passed x a 6.5v capacitor that comes from the filament part

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robert 2015
hace 5 años

The Lynx. Hello friend if it is 2.7 vol the zener and if I have the diadrama I have replaced it again that zener ace a ground bridge of pin 9 of the audio vol of the vol in that location there were those 6.5 vol I do not have them all the voltages fell 12.45vol- 10vol 8vol- 7vol 95,2vol 93vol 160vol 159vol and so what surprises me that in the bd135 arrives more than 45v and in the bd136 only 8o 10 vol and after a while the tv cuts

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laclinicatvsa
hace 5 años
hace 5 años
hello if you do not have the 160v it must be because your tv is not pulling high it should not be starting fix false contacts on the plate with magnifying glass that tension comes out of the flaiwat and feed the color cathodes and filament tension also the flaiwat comes out
El LInce
El LInce
11.610
hace 5 años

The diode is 2.7vol is not more voltage has the plane comments

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neg2013
neg2013
14.048
hace 5 años
hace 5 años
The TV is simply not turned on ... Go back, follow in its footsteps, if before changing the audio amplifier IC the TV went perfectly, did something wrong, check welds, check if I place the same IC well, if I place the diode correctly ... Check welds in general ... Etc. regards
robert 2015
hace 5 años
hace 5 años
some idea colleagues already dizzy toy with tv this I have no idea what can be I am new I have a little practice course more in the philips that has too much protection
robert 2015
hace 5 años

I still have the TV n I can find the way back

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