Hi Guys We have a ctc187cl3 chassis which blanks the video for a second or two..when screen goes blank (no video) channel number is up in right corner...This set has the pip module..soldered tuner grounds.. set is not affected by tapping the circuit board..Any help would be appreciated. Alvin Help make your TechAssist online repair tips database better! Submit your fixes here: http://www.circuitwork.com/techassist/tip/#tips To unsubscribe write to: techassist-request@xxxxxxxxxxxxx with unsubscribe in the subject line.