Question about Sony Kdl-40ex400 Power Supply Aps-254 1-881-411-22
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Posted on Jan 02, 2017
most probably is (a) board ..very common on these models.These boards are made by RoHM.These are similar and used in maganvox,philips and others..Very common breakdown
Posted on Nov 30, 2007
Fault to the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Posted on May 30, 2015
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