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Need Help on my 21" crt tv red retrace line

Discussion in 'Troubleshooting and Repair' started by feraol, Nov 20, 2016.

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  1. feraol

    feraol

    1
    0
    Nov 20, 2016
    Can u help me with my samsung crt tv 21", it has red color with retrace lines and when i merasure the voltage on the rgb pins i get 5v for each,
    is this normal?
     
  2. elebish

    elebish

    177
    12
    Aug 16, 2013
    Retrace lines are caused by a defective blanking circuit or the brightness turned up too high. There is both, horiz and vert blanking circuits. These circuits blank out the crt during scan retrace. Suspect a bad electrolytic capacitor in one of those circuits.
     
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