Shahriar Posted April 25, 2005 Report Share Posted April 25, 2005 HiI Have a NEC 21" TV (model= MH5) and it goes to Stand-By after 10-12 minutes working in normal condition with perfect Image and it goes to stand-by very quickly in Auto-Searching mode but It doesn't go to Stand-by when the antenna is disconnected. I thought maybe sth. gets hot so I made different parts hot with a Hair-drier(a device which is used to make Hair dry :'( ). when COLD Power supply section and around it (Horizantal section; These two section are close to each other on Chasis) gets a little hot, The TV goes to stand-by faster (i.e. Every 20-30 SECONDS) I changed all tarnsistors and regulator and ICs around it but nothing special happened. Today I changed the tuner and what Happened!!!!!! the TV powers Up and goes to stand-by as soon as I connect the Antenna to the Tuner. The Components which I HAVE NOT changed yet are the diodes and Resistors. Can you guess what Happens?P.S. The schemtic below is related to models with PIP. The Model I am working on does not have PIP ModuleThanX in advanceShahriarMH5.pdf Quote Link to comment Share on other sites More sharing options...
vigosport Posted May 9, 2005 Report Share Posted May 9, 2005 Your TV repair completed ?. Quote Link to comment Share on other sites More sharing options...
Shahriar Posted May 9, 2005 Author Report Share Posted May 9, 2005 Dear vigosport I am still working on it and it is going to become an impossible for me to do it.ThanX In advanceShahriar Quote Link to comment Share on other sites More sharing options...
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