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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: reduce heat in switching Power supply with half wave posted by Quest on July 5, 2007 at 12:33:30:
Tks Quest, I meant reducing the input DC voltage in step 1. That is the Dc obtained from the wall 240V AC. in step 2, I hope to reduce the voltage before it came to the regulators, so that the energy would not be wasted. How would they supply voltage to the LCD back lite ? is it high voltage DC? as there is a seperate high voltage coils in the PS board. I thought this is only required in cathode ray tube display?!
BTW I was sort of impulsive buying into this US$ 250 TV. Just to open it up to see how it is being done.... Never open any LCD display before. I found that changing the first set of rectifier that convert street AC to DC, to the FR type, as well as adding teflon and PIO caps usually help the sound in the case of DVD players. That's why I was asking. I hope to remove the grain and the pixle from the TV. It looks ugly displying DVD and cable signal, nothing like the listed 1080 resolution.
best rgds
William Lee
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Follow Ups
- experiment and to find out how LCD TV is beig done... - wlee 13:15:20 07/05/07 (1)
- RE: experiment and to find out how LCD TV is beig done... - Tweekeng 17:38:35 07/05/07 (0)
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