⚡ Descuentos en cursos en video - Lleva tu aprendizaje técnico al siguiente nivel y aprovecha precios especiales antes de que termine la oferta. 🔥 Aprovechar oferta ahora 🔥
TVs

Tv Samsung Slim 21 Cl 21z57ml white image with stripes

aprendiz01tecnico
hace 5 años
hace 5 años
greetings happy years colleagues and teachers here I have this tv I hope you help me solve this fault
victor flores martinez
hace 5 años
hace 5 años
Hello measure voltage in each of the pins of IC501: TDA6107Q. upload results .... is in the platelet of the socket
victor flores martinez
hace 5 años

the resistance melted since the integrated one was short .... did you replace the integrated one?

Responder
José Luis Carpi
hace 5 años
hace 5 años
Hello!!! There I send you a diagram that may be useful to you. Samsung CL21Z43-chassis KSCA (N) Rar [6.90MB] A first step would be to measure voltages in the TDA 6107Q that is in the tube insert. (Example: +180 V in PIN 6). Also the voltages in the connector CN501B in the same insert. (Ex .: +5 V in PIN 8 and 2.5V (approx.) In PINES 1, 2, 3). Test the transistors and other elements on that board. Comment the results. Best regards
aprendiz01tecnico
hace 5 años

greetings jose Luis thanks for the contribution certainly the integradotiene the absence of the 180v due to a resistance r450 q power was open but I changed it and the integrated put it short, after that I took out the integrated and put the resistance again and mark me 190v I don't know if that's why I wanted to know the value of the resistance seems to be 1 ohm and I don't want to burn the integrated one again and be sure of the fault

Responder
José Luis Carpi
hace 5 años

The R450 is 3.3 ohms 1 watt

Responder
nicomena2015
nicomena2015
9.501
hace 5 años
hace 5 años
hello buddy: if the R450 was open and you changed it by a new one of the same value and burned it again ... maybe q, q, this short is the (tda6109JF) the R450 in the scheme is 3.3ohm .. .But you can still try with an R of (10ohm 2w) ... and it doesn't have to be of precision ... 5% ok ... measure in the C412 of 47mfx250v ... there you must have the same 180v in the socket of the C506 tube you have to have the 180v for the amplif, video ... change the TDA6109JF x one in good or new condition and see if it no longer burns the R450 ... you must check the tube socket well before mounting the (tda6109jf) .. mainly the outputs of pins 7-8-9- q, they go to their respective cathodes of the tube ... if the R450 burns there must be some short in the socket of the tube ... check the C506- C507 ... there is never security where the fault is ... this depends on the technician and his experience in trying not to burn components ... but the risk is always present ... this is something that, we already have the technicians assumed and It is a risk that we must run r when we are making a repair .... greetings !!
aprendiz01tecnico
hace 5 años

ok nicomena thanks for your attention, because that's how it is a fuse resistor replaces it and the integrated I start to smoke it take it out and on the pin where its + b arrives and the one next to it is in short bone it has continuity on time i already have the another integrated but I want to be sure that it doesn't have another damaged and vulva element to happen the same

Responder
nicomena2015
nicomena2015
9.501
hace 5 años

the integrated can not be shorted xq, reach 180v ... for that you should check the socket of the tube well and measure if there is no short even the tube cannons ... to try to avoid q, get damaged the tda is a bit difficult ... you can try to levaltar a leg of the L503 q, it is in the socket of the tube and instead connects an R of 10kohm if you see that, the R of 10kohm fumes follows the short and you must turn off quickly ... this way you may not burn the tda ... if it does not smoke try another 4k7ohm and see what happens ... you can also try taking the socket out of the tube and see if the same thing happens

Responder
aprendiz01tecnico
hace 5 años

ok friend are you think it could be the screen or the socket?

Responder
nicomena2015
nicomena2015
9.501
hace 5 años

I don't know about it: but if the R450 burns you, you should check the socket well before assembling the new tda6109 and make sure that there is no short film ... x the photo that appears, I don't think so. be the tube, but you have to, check the socket well and to try to prevent q, do not burn back (you can not assure) ... as I said raise a leg of the L503 and instead weld a R of (10k ohm) and see what tension there is on pin 6 of tda6109 ... if there is something you tense you change the Rde10k x one of 4k7ohm and then change it back x one of 1kohm and so you are measuring on pin 6 of the tda6109 if the tension is happening ..

Responder
aprendiz01tecnico
hace 5 años

I already solved my friend by changing a 10f filter that goes in the 180v line and the image was repaired

Responder
nicomena2015
nicomena2015
9.501
hace 5 años

Well buddy: I'm glad that you already have the TV working ... (congratulations) ..
regards!!

Responder
aprendiz01tecnico
hace 5 años

thanks to you for your great help

Responder

¿Conoces una solución?

¡Aprende a reparar con estos cursos YoReparo!

4.93
(14)

Curso Reparación de Equipos de Audio de Alta Fidelidad

Maximiliano Resch
$ 60 USD
$ 20 USD
4.94
(16)

Curso Refrigeración Comercial Aplicado a Diagnóstico y Reparación

Ing. Georga Melgarejo
$ 40 USD
$ 13 USD
4.71
(7)

Curso TV OLED y QLED con el Ing. Picerno

Ing. Alberto H. Picerno
$ 29 USD
$ 10 USD
¿Tienes una mejor respuesta a este tema? ¿Quieres hacerle una pregunta a nuestra comunidad y sus expertos?
Regístrate gratis