⚡ 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 🔥
Tube TVs
Samsung TV model SL21A8W horizontal sync fault
7
hace 5 años
hace 5 años
Good morning colleagues, I have a Samsung TV model SL21A8W with problems of horizontal synchronism, the image moves to the sides, I already changed the eeprom memory, also the jungle and I have verified the diodes that are in the environment of the same and I can not find the cause, please if someone has solved this problem before and can help me.
Thanks in advance.
7
hace 5 años
When I proceeded to turn on the TV to take a picture of the fault, to my surprise, the fault is no longer there, at this point I do not understand if, the fault was due to some faso contact and was corrected when I took out the diodes around the jungle to check if they had escape, anyway I will continue testing the tv to see if the fault comes back, since I do not feel comfortable delivering it to the client without knowing exactly what is the cause of the failure
1.684
hace 5 años
hace 5 años
Hello tricom, first of all a cordial greeting. I think the TV model is CL21A8W Chassis KS2A (N). If so, the problem is that the horizontal sync pulses are not reaching the integrated IC201 (Pin 13). These pulses come from the TSH Collector through R433 = 6K8-2w; from the junction of C407 and C408. You must test these components in addition to Diode DZ402 = 1N4148 which is going to ground; R206 = 10K; D206 and D205 = RB4410. Do it and comment the results.
Reparaciones similares solucionadas
¡Aprende a reparar con estos cursos YoReparo!
¿Tienes una mejor respuesta a este tema? ¿Quieres hacerle una pregunta a nuestra comunidad y sus expertos?
Regístrate gratis
Ad