Tv lg rp-21fd10g is protected and does not give voltage in + b capacit
Televisor LG RP21FD10G
Televisor LG RP21FD10G
Hello Friend. What number is the tv chassis. and in that stage of the tv. have you worked to try to solve the fault
I worked the source is good, the + b in 110V and the main capacitor is in 150V but I put a focus on the + by is protected but I don't know why
friend. the ptc. always heats that is normal is not normal when the image comes out with several colors there if it can be the ptc
friend. Disconnect the pin in the middle of the 16th which passes and also regulates the flay scan
friend. because of the model in which the ic was vertical. 78040b Look for it there on the board is 7 pins and is screwed on the aluminum trap
okay. Now it does what it indicates with the transistor q16 disconnects the middle pin to open if the TV. turn on
friend. check the line that comes out of that pin to open with which element you will find that it may be short
friend. if the focus does not turn on it is because there is no short it might be that transistor
friend how do I get in touch with you when you have any questions I see that I teach a lot today
friend a question the emitter and the collector whistle but when you take it out you no longer
friend. there is an element that is attached to the board, which can be followed by the clues of each pin that you find
ok friend I got a small transformer and a resistance the resistance is good but the transformer is not
if it is the one that is next to the flay back is that of the driyvi check it out or try another transistor of the q16 that is good or new
the emitter and the collector were short and when the transient took out the starter but in the same way the ignition by the assumption that they emit and the led of stand by went off but when continuing searching I got a short resistance which was the one that made the short in the transmitter and collector and just need to change them and that's it I imagine