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Equipment Repairs => LCD TV forum => Topic started by: call me al on April 01, 2021,17:26:39

Title: Sony kd55xd9350
Post by: call me al on April 01, 2021,17:26:39

Hi all ,have a Sony kd55xd9350 its dead was looking back on old posts and the fault was featured before, ic408 was mentioned and it has low resistance as described .Where can this chip be got or is there a alternative that can be used.Many thanks for any info

Title: Re: Sony kd55xd9350
Post by: fix2003 on April 02, 2021,02:27:13

https://uk.farnell.com/texas-instruments/tps54334dda/dc-dc-conv-sync-buck-570khz-hsop/dp/3007342?gclid=CjwKCAjwu5CDBhB9EiwA0w6sLQOfFbhV4tj97oKLs37SpnavUyeKtz0W3dL99rhDjyqqzGx1a4pKEhoCdQcQAvD_BwE&mckv=s8Bi907A1_dc|pcrid|459820069597|plid||kword||match||slid||product|3007342|pgrid|104445605661|ptaid|pla-301390009829|&CMP=KNC-GUK-GEN-SHOPPING-SMEC-WHOOPS-Test725-maxCPA-Step1&gross_price=true

https://eu.mouser.com/ProductDetail/Texas-Instruments/TPS54334DDA?qs=CzouL7iWfZu17GWxs%252BQJ5Q==&vip=1&gclid=CjwKCAjwu5CDBhB9EiwA0w6sLXzRkKsR-XdJPB9BzVlTYsf3sFJkSasCXa6tK7UFfFP_J9XozrTSMBoCXb4QAvD_BwE

https://www.ebay.co.uk/itm/333855226886?chn=ps&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&itemid=333855226886&targetid=1140163975809&device=c&mktype=pla&googleloc=9044907&poi=&campaignid=12128858833&mkgroupid=117045676459&rlsatarget=pla-1140163975809&abcId=9300480&merchantid=6995734&gclid=CjwKCAjwu5CDBhB9EiwA0w6sLT1WlthdXMP6qadf_3PwCBrUJ9xbht6Gzti5Kpg6ayTx43iCCzfjEhoCX78QAvD_BwE

Title: Re: Sony kd55xd9350
Post by: downunder on April 02, 2021,03:38:55

Sony now have a revised DSP3 board to prevent future failure of this 24V regulator.                        Bruce