I have a Toshiba TP50H15 with a power supply shutdown problem. I found some power supply functional detail on the web and have determined that the -18V overcurrent is tripping the shutdown circuit. I need the schematic or some insight to get any further. I have searched for the service manual (020-9606) and it does not seem to be available any more.
Any help would be greatly appreciated.
Thanks.
Replace the convergence output IC's. Look for any cooked resistors around them.
First try to disconnecting the three crt sockets and then unplug the convergence board. If the set comes on, then replace the convergence IC's. But A TV set is a dangerous place to be experiementing inside of. If you do not have any repair experience or know of the High voltage safety issues please seek out a pro to assist you in this repair. Also a common fault in a Toshiba TV set is the power regulator IC. Good luck and please let us know how you made out.
Wow, you guys were very helpful. I never did find the schematic but followed the advice, replaced the 2 convergence amps ($19 including 2nd day shipping) and now it's up and looking good!! (this is great news as it belongs to my sons father-in-law) I would like to adjust the convergence a bit (the blue is out a little). I think I've read that this set may have a digital memory for storing convergence data that is accessed by the remote through the "Service Mode". Can you tell me how to put it in service mode? Thanks very much
George Hamilton (Tubin)
Your right, that manual im told by a few buds is a hard one to find. im told though that almost all of the TP50 or 55h seris is all the same chassis and alighnment procedtures are the same .. Find the download here http://www.servicemanuals.net/results... You really shoulfd follow the manual to adjust a service menu mas One wrong adjustment can mess up a set forever. Good Luck
I have the same problem with my TP50H15. But I can't locate convergence board or convergence IC. Can you tell me where they are or post some pictures ?
Thanks,
Lu
I have the same problem with my TP50H15. But I can't locate convergence board or convergence IC. Can you tell me where they are or post some pictures ?
Thanks,
Lu