Philips Tv Repair Manual
Hello friends, I ask you a question about the philips tv repair manual TV 21PT5432/77 the problem is that the cathode is low and the TV red is protected, is there any way to remove protection regardless. 180V appears at the foot 6 and 3 cathodes measuring external source, the red is 20V, 70V blue has green and 70V. I tell them I was a former member of SEPA did the course with Paco sources and TV but for various life issues and stop making repairs to the rodeo and today I'm going back to make way for LCD Villa Adelina because the former schoolhouse located on Munro is no longer (a great master Paco my respects to his memory) Atte. Sorry for the delay in responding but the TV is pretty good, the service mode to give more color from red to give a little on the purple but it looks good (I gave him also the lamp tube is not recommended) but served the TV is working well. Give the lamp is to give a refrigerator bulb, disconnect the tube socket filament placed at a voltage of 9V to hot unplug, then give the gun tube at the pins of the cathodes of Red, Green and Blue, give hints of tension with the test bench and the inverter voltage transformer adapter (variac) in 150Vca, give hints to spark each gun, in some cases are cleaned well the 3 canyons and in other cases it serves to do this. He had already discussed with Paco and he was totally against doing so because of the risks they mean to the TV, but doing so with caution can sometimes be better and not always do, only in cases like this that only tube is throw it away or try to philips tv repair manual it if it had not done this red color is barely noticeable in the picture tube life is not how long it will last, and explain it to the client and I decide to do but I repeat this is not the best way to improve the provision of the tube. If the tube is worn out a cathode, to reactivate the issue up but it lasts a few days and falls back, if the tube is not worn out it may take several months or years, provided the filament voltage of the normal 6, 3Vrms. . . .