General TV Plus Model 2120SF Vertical Closed ...
Hello Friend. measure the voltage on the 7 pins of the ic. vertical and upload results
ok .... friend, I will measure tension and tell you tomorrow in the morning I hope you can attend me at that time thanks
Manolo friend relise the measurements and pin1 (3.7v), pin2 (26.6v), pin3 (0.07v), pin4 (GND), pin5 (13.8v), pin6 (25.9v), pin7 (3.9v).
those are the values they measured
the one that takes 16 volts negative is also 16 volts positive or replace 100mfd35vdc 47mfd50vdc 470mfd 25vdc
FRIEND THE TV REMAINED WITHOUT AUDIO .....
REBISE THE IC ARRIVES TO YOU AND AUDIO SIGNAL BUT IT DOES NOT COME OUT ANYTHING IT WILL BE DAMAGED IC
FRIEND as I do to enter the TV configuration mode to reset it because it does not want to give audio
friend as the following check pin 5 of the integrated will take you to a mute transistor disconnect that transistor find out if it gives you audio
Follow the track corresponding to pin5, maybe you will find that transistors V601 and V602 maybe with another position code, but in some way it looks like your circuit, because according to the versions, the changes differ very little from each other
thank you friend and solve the fault .....
remove the transistor v602 and the audio returned
friend I get another samsung tv .... I explain the vertical opens but not complete it lacks like 4 fingers on each side to open the aydio completely and the image is ok .....
The chassis model is the K15A, I already have the diagram and check the capacitors and they are good when they arrive 24v
What are you suggesting
aaaaa ... and you will have some other method to communicate with you some chap or social network thanks
Freddycolme friend if they are equal both from above and below reduced check a resistance, 1 ohm in the vertical that goes to ground or first aces vertical adjustments in the parameters and write down what you do not fit for then put it as it was if you do not see change
friend I got another tv sony trinitron color model KV-29SF140 presents failure cushion effect
if you can orient me since it is the first time that I review one with that fault ... thanks I hope you do not bother
ok friend thank you I will do what you say and I will notify you then I upload the photo ....
hello friend sergio .... see if you can help me with another tv brand parker kvp2135_ chassis_782_ts-2030.
which has the following fault, I connect it to the current and it turns on the stambay bulb but it does not turn on
thanks in advance for your help
friend fix the vertical fault but now it has another is that nothing is heard is completely mute on the screen indicates when balo or volume up but has no audio
friend. if you have already solved the failure of the vertical stage --- today check the filters that are close to the ic. of audio and check that the trend to that ic. and it disrupts the audio signal, it may be that some horn is bad from ohms
friend. if you already check the tension and you get 12v at the entrance of pat 1.
The speakers are in good condition.
on leg 6 and 8 of the AN17821A ic isolate the pins and you get audio signal