Main > Monitor/Video Forum
Tatung Monitor Won't Start
Titan91:
Ok so I dropped the components I pulled back in. Would it be ok to power up the chassis board without anything connected to the picture tube? IE neckboard, yokes, etc? This would make it possible for me to live test the power supply circuit for voltage. I figure yes since nothing is getting power anyway?
ed12:
nope
power runs through the yoke >load<
neckboard as a rule carries the picture tube ground
back down to the chassic
hook it all the way up as pre normal
ed
Ken Layton:
My repair guide is here:
http://home.comcast.net/~mtpacifico/_kenskorner/files/Tatung%20VS-14428%20-%20VT-1440S%20-%20Merit%20Type%2066%20Monitor%20Repair%20Guide.pdf
Titan91:
Thanks for the guide Ken. I have a cap kit but it doesn't cover the main filter caps/neckboard caps so I'll probably be ordering those as part of my troubleshooting because they all need to be changed anyway.
techn0:
I am working on this very same monitor right now. It appeared dead. No attempt at a picture when powered on. No noises. No neck glow. Installed cap kit even though most of the caps I removed were still good. I have tested voltages and am seeing 93.1vdc on the neck board accross C924 so I know the power supply is working. The HOT is warming the plate it is connected to and appears to be working. I am inclined to think that it is a bad flyback. I think everything is working but the HV from the flyback.