Question about ViewSonic N3250W Television
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Posted on Jan 02, 2017
SOURCE: Da?±a el transistor horizontal
El transistor de salida horizontal es un 2SC5331 (Q303). Por favor también compruebe el transformador Flyback (FEA661).
Estará bien comprobar también Q103 (IRF740) que es el regulador de recorrido HV. En algunos casos, D123 defectuoso en el recorrido G1 puede causar el HOT a corto.
Un diagrama esquemático / manual de servicio está disponible aquí.
Tengo que hacer el uso de trnaslator en línea para contestar a su problema.
Buena suerte y saludos cordiales.
Posted on Jan 04, 2008
Posted on Mar 28, 2010
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed VIEWSONIC monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
Posted on Jun 17, 2010
SOURCE: No enciende tv. La luz
When troubleshooting these units, there are always several variables to consider. First check to see what last occurred with the unit such as did the children play video games, did the electricity go out due to bad weather. You may see that there are many possibilities but let's focus on what occurred last to the unit. Once we determine what happened last, we may isolate the actual cause of the problem. The actual cause may be associated with projection issues, older versions (Picture tube), interference from devices located nearby, and even a radio turned on and located really close to your unit. This is normally known as electromagnetic interference to electronics and is very common with the error you have provided today. Please continue to look for anything EXTERNAL to the unit before looking at the internal components, check your system input settings, verify your display settings, and confirm that your properly connected to your cable service.
Posted on Jan 16, 2011
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