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Post by MadModder on Apr 3, 2005 10:07:24 GMT -5
It must be possible to cut the onboard +3.3V regulator circuit and connect a custom +3.3V regulated power source, right?
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Post by David Murray on Apr 15, 2005 11:02:03 GMT -5
Why would you want to? It makes more sense to have a 5V regulated supply.
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Post by bleugh on Apr 15, 2005 11:10:19 GMT -5
yeah, lop off the 3.3 V linear reg and bung in a switchmode, will be a lot easier on the old batteries
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Post by pyrofer on Jul 15, 2005 7:27:13 GMT -5
I want to mod my dtv into a small metal box to house all the connectors, putting 2 joystick sockets, kb, disc drive etc with an internal power supply. (i have a 7" lcd to mount too)
What voltage does the dtv actualy require? I have lots of 5v supplies but it sounds like it realy wants 3.3v.
Its quite easy to get a small 3.3v dc to dc and then use a normal 12v wall adaptor, this is obviously a great solution for a small case.
How realistic is it to remove the onboard reg and use my own 3.3v supply?
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Post by MagerValp on Jul 15, 2005 12:21:28 GMT -5
If you're going to run it with a PSU, what would you gain by replacing the regulator? The built in linear regulator should work just fine.
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Post by pyrofer on Jul 16, 2005 6:56:20 GMT -5
Yes, but why regulate to 5v, only to re-regulate to the correct voltage? I could put a proper 3.3v high quality switchmode in and just go to the correct voltage in one go. Although, thinking about it, you need 5v for the PS2 kb anyway! Solver my own problem.
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Post by MadModder on Jul 16, 2005 7:23:04 GMT -5
But if you look at the schematic there are no 5V-lines anywhere. Only 3.3V. Keyboards nowadays works fine with 3.3V.
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