This failure phenomenon of kinescope accelerating voltage on the low side. Check the accelerating voltage reduction. g4Jservice manual download site
(1) the multimeter test tube accelerating voltage, voltage fluctuation between 100 ~ 400 v. Breaking operation output main put plates lead, test the lead on voltage and 420 v is normal. Accelerating voltage load has a fault. g4Jservice manual download site
 g4Jservice manual download site
(2) the acceleration measurement of resistance, there is leakage, fluctuations in resistance. Clean with alcohol as plate, drying after fault elimination.g4Jservice manual download site