Substitution Of Transistor

An IBM CRT Monitor came in with no power problem. After checked everything i conclude that it was only the horizontal output transistor C5280 that have problem. Since i could not get the original part i put in C5411 as substitution. I burn in test the Monitor for couple of days under high resolution and the result was it worked perfectly okay. If you are repairing CRT Monitor then please jot down the part numbers and who knows one day you shall use it.

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4 Comments

1. 

   John Dalpasen

   November 26, 2010 at 4:32 am

   most problem i encountered is at horizontal output transistor on different brands of TV and monitor even i replaced it with the same part number. what caused it to blown out. please guide me, i need your reply. thanks..

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2. 

   admin

   November 29, 2010 at 8:47 pm

   Hi John,

   Try visit this link:

   https://www.jestineyong.com/?p=403

   Jestine

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3. 

   Wimpie

   October 17, 2012 at 2:24 pm

   Hi Jestine
   When replacing transistor or fet when original part can not be found,what is the most important characteristics to look for when using another part? Can higher voltage and amps be used?
   Thanks Wimpie 

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   • 

     Jestine Yong

     October 17, 2012 at 10:25 pm

     Hi Wimpie,

     Yes you need to look for the same or higher spec.

     Jestine

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