Openbox S-9,S-10 con turner sin alimentacion
I’ve traced the problem of low LNB voltage that causes the S-9 to work for a while then drop off. There is a small part that looks like a disc capacitor near the tuner that actually is a PTC thermistor that goes bad.
http://i56.photobucket.com/albums/g1...IMG_0018-2.jpg This part provides short circuit protection, but when bad it trips off at loading well under the max rating of 500ma. The two bad ones I have found so far are marked M60 065. http://i56.photobucket.com/albums/g1...IMG_0021-1.jpg On my own OpenBox that is still working, this part is larger and is marked JK60 065. Digi-Key engineer crossed this to a “Little Fuse” brand part # F1993CT-ND. It costs 58 cents! http://i56.photobucket.com/albums/g1...IMG_0016-1.jpg This part can be changed from the top side of the board. Just snip the old one off. http://i56.photobucket.com/albums/g1...IMG_0022-1.jpg Then tack solder the new one to the solder pads. http://i56.photobucket.com/albums/g1...IMG_0028-1.jpg I then tested the S-9 by operating into a variable power resistor. http://i56.photobucket.com/albums/g1...IMG_0026-1.jpg Ran it at 19v. @ 460ma. For two hours. The voltage and current held and the thermistor ran cool. http://i56.photobucket.com/albums/g1...IMG_0024-1.jpg The S-10 uses the same part, M60 065, and is mounted on the tuner board. It has been confirmed that this Digi-Key part will fix the S-10 as well. suerte y sal U2 |
[QUOTE=bonou12;4379389]I’ve traced the problem of low LNB voltage that causes the S-9 to work for a while then drop off. There is a small part that looks like a disc capacitor near the tuner that actually is a PTC thermistor that goes bad.
http://i56.photobucket.com/albums/g1...IMG_0018-2.jpg This part provides short circuit protection, but when bad it trips off at loading well under the max rating of 500ma. The two bad ones I have found so far are marked M60 065. http://i56.photobucket.com/albums/g1...IMG_0021-1.jpg On my own OpenBox that is still working, this part is larger and is marked JK60 065. Digi-Key engineer crossed this to a “Little Fuse” brand part # F1993CT-ND. It costs 58 cents! http://i56.photobucket.com/albums/g1...IMG_0016-1.jpg This part can be changed from the top side of the board. Just snip the old one off. http://i56.photobucket.com/albums/g1...IMG_0022-1.jpg Then tack solder the new one to the solder pads. http://i56.photobucket.com/albums/g1...IMG_0028-1.jpg I then tested the S-9 by operating into a variable power resistor. http://i56.photobucket.com/albums/g1...IMG_0026-1.jpg Ran it at 19v. @ 460ma. For two hours. The voltage and current held and the thermistor ran cool. http://i56.photobucket.com/albums/g1...IMG_0024-1.jpg The S-10 uses the same part, M60 065, and is mounted on the tuner board. It has been confirmed that this Digi-Key part will fix the S-10 as well. suerte y sal U2[/QUOTE] [Quote = bonou12; 4379389] he rastreado el problema de la baja tensión de LNB que hace que el S-9 para trabajar por un tiempo y luego dejar. Hay una pequeña parte que se ve como un condensador de disco cerca del sintonizador que en realidad es un termistor PTC que va mal. [IMG] [url]http://i56.photobucket.com/albums/g171/bonou12/IMG_0018-2.jpg[/url] [/ IMG] Esta parte proporciona protección contra cortocircuitos, pero cuando el mal se dispara fuera a cargar bien bajo la calificación máxima de 500 mA. Los dos más malas que he encontrado hasta el momento están marcados M60 065. [IMG] [url]http://i56.photobucket.com/albums/g171/bonou12/IMG_0021-1.jpg[/url] [/ IMG] Por mi cuenta OpenBox que todavía está trabajando, esta parte es más grande y está marcada JK60 065. Ingeniero de Digi-Key cruzó a un 'pequeño fusible' parte marca número F1993CT-ND. Su precio es de 58 centavos de dólar! [IMG] [url]http://i56.photobucket.com/albums/g171/bonou12/IMG_0016-1.jpg[/url] [/ IMG] Esta parte se puede cambiar desde el lado superior de la tarjeta. Simplemente cortar el viejo fuera. [IMG] [url]http://i56.photobucket.com/albums/g171/bonou12/IMG_0022-1.jpg[/url] [/ IMG] Luego suelde tack el nuevo a los puntos de soldadura. [IMG] [url]http://i56.photobucket.com/albums/g171/bonou12/IMG_0028-1.jpg[/url] [/ IMG] Luego he probado el S-9 operando en una resistencia de potencia variable. [IMG] [url]http://i56.photobucket.com/albums/g171/bonou12/IMG_0026-1.jpg[/url] [/ IMG] Ejecutó a 19v. 460 mA. Durante dos horas. El voltaje y la corriente a cabo y el termistor corrió bien. [IMG] [url]http://i56.photobucket.com/albums/g171/bonou12/IMG_0024-1.jpg[/url] [/ IMG] El S-10 utiliza la misma parte, M60 065, y está montado en el tablero de sintonizador. Se ha confirmado que esta parte de Digi-Key se solucionará el S-10 también. suerte y sal U2 [/ quote] Muy buena orientacion,tambien lo que falla mucho es la fuente de alimentación del openbox s9,los condensadores que trae son muy malos y se quedan sin potencia estaria muy bien sin algún colega pone el esquema de estos receptores de sátelites que están a muy buen precio. un saludo |
puedes subir las imagenes bien, no se pueden ver, gracias
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