Need Help on my 21" crt tv red retrace line

feraol

Nov 20, 2016
1
Joined
Nov 20, 2016
Messages
1
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?
 

elebish

Aug 16, 2013
177
Joined
Aug 16, 2013
Messages
177
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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