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Show horizontal line.i replaced the ic checked all resistance & fuses but still fault is there

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Good day sir
if you already replace a new vertical I.C. there's a problem with the supply of your I.C. 24v dc.
I give you some steps for D.I.Y. troubleshooting
first,remove the cover of your TV loosening all screw at the back
secondly,look for the part number of the vertical I.C
thirdly,click this site to identify the pin connection of the I.C to determine the supply.
http://www.alldatasheet.com/
next,type the part number of I.C.then go down and click the view P.D.F...after that,click download to view... adobe reader is needed to download and see files.its free
fourthly,after you see the pin configuration, check the supply voltage of I.C 24vdc..if the supply is too low or totally dead,check the print line of PCB to find where the supply came from its usually found on secondary of fly-back..check all resistor and diode near to the secondary of fly-back
and finally if done all process replace a new spare parts if you found the defective one
thank you and good luck

Posted on Apr 04, 2011

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