Our TV was working fine when we went out of town and would not turn on when we returned a week later. The power went out, but it was not due to a storm. When the remote is used to turn it on, a high pitched humming sound comes from the set. Could it just be a blown fuse from the outage? Any guidance to give us to try on our own would be apprecaited. Thank you, Caron Hoffman
Did u remember if u left ur tv on when u went out of town for one week? well probably a blown capacitor in the power supply circuit is the one u've heard. the symptom is usually caused by a breakdown in the power supply circuit. in most modern receivers (transistorized and/or ic), it may also be caused by a breakdown in the horizontal deflection circuits (hor. oscillator, pre-drive, or drive circuits). supply voltages for the tuner, vif,sif, and vertical output are usually supplied by the horizontal output circuit. but if you doesnt know anything about these stuffs, better bring it to a qualified service tecnhician.
Posted on Jan 16, 2007
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