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<blockquote data-quote="Vipersan" data-source="post: 888089" data-attributes="member: 325666">Tuners are rarely if ever available as a separate spare in modern flat screen televisions..occasionally made available if prone to failure or defective design ...as with certain LG models ..Sony don't generally do this ..making the entire ssb/control board available as a single part only.Often us poor service engineers who do repair to component level are left quoting customer huge sums to replace an entire board for the sake of one or 2 defective parts ,,,OR hunting spares breakers of TV's ..or Ebay for used but functional boards to complete repairs or rob for those elusive parts ..Often this causes complications because for example ..it is a later/different revision ..and thus fitted with an alternative tuner say ..The problem is then that the tuner will not function unless settings are changed in the service menus to accommodate ...or worse the firmware then requires changing.In the case of Sony this requires specialised equipment rarely made available to engineers unless they are a nominated service agent.Your best bet to fix a signals board level (assuming this is where the problem lies...and it most likely is in this case) is to hunt ebay for a replacement used board from a set with a damaged screen ..If you choose this route make sure ALL numbers on the board ident are identical ..It may look the same but may well be for a 42 inch version and thus may not even drive your screen ..Psu faults are simpler ..but again ..make sure any replacement board carries the same ident numbers as the original .Caution a board may have come from a similar model but not not be the same model specifically.rgdsVS</blockquote>

[QUOTE="Vipersan, post: 888089, member: 325666"] Tuners are rarely if ever available as a separate spare in modern flat screen televisions.. occasionally made available if prone to failure or defective design ...as with certain LG models .. Sony don't generally do this ..making the entire ssb/control board available as a single part only. Often us poor service engineers who do repair to component level are left quoting customer huge sums to replace an entire board for the sake of one or 2 defective parts ,,,OR hunting spares breakers of TV's ..or Ebay for used but functional boards to complete repairs or rob for those elusive parts .. Often this causes complications because for example ..it is a later/different revision ..and thus fitted with an alternative tuner say .. The problem is then that the tuner will not function unless settings are changed in the service menus to accommodate ...or worse the firmware then requires changing. In the case of Sony this requires specialised equipment rarely made available to engineers unless they are a nominated service agent. Your best bet to fix a signals board level (assuming this is where the problem lies...and it most likely is in this case) is to hunt ebay for a replacement used board from a set with a damaged screen .. If you choose this route make sure ALL numbers on the board ident are identical .. It may look the same but may well be for a 42 inch version and thus may not even drive your screen .. Psu faults are simpler ..but again ..make sure any replacement board carries the same ident numbers as the original . Caution a board may have come from a similar model but not not be the same model specifically. rgds VS [/QUOTE]

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