RCA TV model RAR 2108 USL USLIM without sound
Hi Victor E Thank you for answering my question, I comment that in the integrated LA42032 I have 12 V and not the 16 v, I think it's ok you correct me if it's not so thanks
Hi, Victor E, sound comes out with DVD, there is no other solution but to change the decoder, I see if I get it from a colleague, because in electronic stores I don't get it (skips), thanks for being on the other side, friend.
Hi niconema2015, what voltages should I have in the MSP3425G B8 V3, as I said before in pin 33, do I have the 8v than others?
Hello friend, you don't have the 5v on pins 6-16-46, there is no other, than to change the MSP3425G B8 V3.
before changing the deco ... first look at the RS01 if it is not open or the zener diode d501 if it is not short .... ok ... comment results !!
Sorry for the delay, the internet system goes down and comes back, diode 501 is ok, I don't find resistance 501 if R 502 and 503 that are 1k are ok
it is not the R501 .... it is the RS01 of 62hom x 2w .... it is between the 12v q, they leave the Q803 when activated x the Q804 when power is given and the zener diode DS01 of 5.1v from the out 5v q, feed the pins 6 and 16 of the deco ... look for the RS01 and measure it if it has the value of 62ohm ... ok ... measure if there is tension in the cathode of the zener DS01 of 5.1v ... ok. ..
Hello friend, I commented that I had no luck with the MSP3425G B8 V3 I could not get it but I checked the voltages that you told me, the resistance is 63 ohm and I measured the voltages in pin 6 |, 16, 46 and they give me 5v
these are the voltages I took pin 1 11v pin 2 3 4 0v pin 5 3v pin 6 0v pin 7 12v pin 8 5v pin 9 5v pin 10 0v pin 11 5v pin 12 5v pin 13 0v
friend: first you put q, pin 6-16-46- you have 5v ... down you put q, pin6 0v ... your measurement is not understood ... the voltage on pin7y8 should be 5v ... since q, these come from the eeprom ... that deco is not right ... if you don't get it, check if audio comes out of pin5 of lv501 ... if you have a small app, audio takes from pin5 through a C of 0.01 mf and see if there is audio on pin5 of the lc501 and you comment on it ... be careful not to make short between pins ... the lc501 would be damaged ..
sorry for not expressing myself well with my measurements, I take voltage with a single plate with a lamp in series, without the tube, when I was half zero on pin 6 16 46 without giving the command with the keypad, then place the keypad and say The order already had those voltages, another board was also on my table just as I had a problem at source and I delivered it, that was my mistake for working with two plates, I also said that I provided it with a DVD, in which it was the other board because on this board, I provided it with DVD and it has no image or audio
friend if it has audio, the TV speakers make a small noise when I touch with my fingers the filters that are close to the amplifier LA 42032, as you said voice I have to change the deco .... tomorrow I will look for it again
It's good friend ... but you have a small amplifier, audio or not ... you don't comment what. I asked you in the previous comment ... because if you have it we can remove the audio from pin5 through a 0.01mf capacitor to inject them into the audio lc ... this in the case of q, do not get the deco ... if you get it, it will be prob, solved ..
I don't have an audio amplifier if it's not too much trouble, you would give me a circuit to do it
it is for the doubts the deco does not get it tomorrow .... and to have it the circuit to solve other failures with that same deco .....
Here you have a very easy circuit to assemble with a tda2002 ... it is powered by 12vcc ... you can still use the TV sound lc ...
https://ibb.co/8zxnVKR
hello friend sorry for the delay the deco .... it is impossible to get it in my province (jumps) thanks for the nicomena2015 circuit, when I put it together with the integrated TV I comment and value ...... the delay was that I am from Inside jump and I have 1hs and a half of travel and I do not go often, when together 5 or 6 TV, or other electronic devices I go, your help I appreciate more, a hug
Well colleague Ruddy ... you can rate my contributions under my first comment ... and when you get the deco you tell us how the repair is going .... luck and greetings!
hello nicomena2015 I'm new, the deco (MSP3425G B8 V3) is ok, it's not bad, I took it out and we checked it with a colleague who had the same board with a socket to test, before giving the TV, he gave me a hand to test if the deco was bad, but all right, I'm going to keep looking for the fault, because no sound comes out, I told the customer if I wanted him to inject the circuit to use it with a potentiometer and he didn't want to, he told me that to That has the control to give volume. This plaque is giving me a pain of caveza, but I do not give up
hello Ruddy ... what have you done until now ... are you sure that the deco is fine ... you put it on another plate ... how that test was done ...
as I said friend a colleague had an RCA badge (the same) I was in doubt with the deco ..... then I called him and he was about to deliver the TV, the next day, he was waiting for me to take the deco .. ... because on the plate that he had put a socket for the deco ....., I commented that they are delicate that deco .... they always fail, so I take out the one I had and put mine and came out bone volume that is working ok deco ...
This colleague works a lot with TV, he is from the city of Salta, so he was busy to see her the board, he only gave me a hand to know if the deco worked ...