Subject: [tv-repair] RCA TV Model# GPR798P Hello, This set is an older one,I have no schmatic on it. It will play perfect,then it will lost video and channel selection number in the box in the cabinet. It keeps sound and has snowy raster. Doesn't seem like a break or bad solder joint.Tapping set doesn't bring it back. Any help would greatly be appreciated. TIA Max ===== Max Bailes Bailes Electronics Rt.4 Box57-A Hurricane,WV. 25526 304-562-7167 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.