Question about Toshiba 57H81 57" Rear Projection Television
Fuse F850 and F852 are open. They are part of the 16 volt and 32 volt supplies that are used by the convergence board. I still have not removed the power/def board but will need to. I believe the 32 volt supply is developed with a doubler circuit and both fuses being blown in the same area indicate the problem may be the supply components themselves. Capacitors, bridge or single rectifiers for example. Does anyone have any experience with this particular problem? Still haven't figured out how to disconnect the blue connector which connects the two circuit boards. The white connectors (2) disconnect and I assume the blue must have a similar mechanism.
Where exactly are the fuses? I am having the power light blinking problem all of a sudden. About a year ago I replaced the convergence ICs. The first fuse I see is the F850, and it is right behind where the power plug is attached to the power board. No problem with that fuse that I can see. I am gathering there are other fuses. It sounds like they may be around the convergence board. Any help in locating these fuses for inspection would be greatly appreciated.
Posted on Jan 31, 2007
If the convergence power supply fuses blew you can bet that the convergence ICs need to be changed. The blue connector will be pressed down on the rear of the connector to release or pulled up on the back end of the socket. Ps dont forget to rate this.
Posted on Oct 11, 2006
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Posted on Jan 02, 2017
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