|
Well, I had a little setback with the 8T241 today. I put it back in the cabinet last night and watched it for about 2 hours with no problems, but today the picture was intermittently blacking out. with accompanying "screeching" noises coming from inside the HV cage. I shut it down and discharged the HV lead to the chassis, but didn't get the usual spark from the stored HV in the doorknob cap. OK, I thought that maybe the doorknob cap that was good yesterday might have suddenly failed, but it threw a healthy spark when I discharged it directly at its terminal. That left only one possible culprit, so I decided to have a look under the HV rectifier socket at the 1-Meg, 1-Watt resistor between the the HV rectifier / doorknob cap and the corona ring / CRT anode. Bingo, that resistor was open. I need to go get some 1-Meg/1-Watt resistors on Monday.
|