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Help needed: Convert US-NTSC PSU to PAL (110V to 240V) - Версия для печати

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Help needed: Convert US-NTSC PSU to PAL (110V to 240V) - jacobsson - 18.05.2017 10:52

Hello.
I have 5x 110V NTSC power supplies on my hands. I love to modify them to accept a wider range of voltage (basically make them region free): 100V to 240V.

My first understanding is to swap the 200V capacitor on the AC side to a 400V, but which value?

What components needs to be changed?


RE: Convert NTSC PSU to PAL (110V to 220/240V) - dragoncity - 18.05.2017 10:53

Hello :-)

https://dragoncity17.wordpress.com/2016/10/25/dreamcast-convertir-une-alim-110v-en-220v/


RE: Convert NTSC PSU to PAL (110V to 220/240V) - jacobsson - 18.05.2017 11:35

(18.05.2017 10:53)dragoncity писал(а):  Hello :-)

https://dragoncity17.wordpress.com/2016/10/25/dreamcast-convertir-une-alim-110v-en-220v/

Wow, that was fast. I really appreciate this!
Does this mean it can now accept both 110V and 220V?


RE: Convert NTSC PSU to PAL (110V to 220/240V) - dragoncity - 21.05.2017 12:08

I think just 220v after,test if you want ^^ Smile


RE: Convert NTSC PSU to PAL (110V to 220/240V) - jacobsson - 05.06.2017 17:23

It seems like my PSUs are of another design (Mitsumi) Sad
There are no JP1 nor R13 in series with the capacitor.

Images top and bottom
https://www.dropbox.com/s/3448a8u64q9gzxk/IMG_20170603_185836_e.jpg
https://www.dropbox.com/s/3h123v9qyueqp2n/IMG_20170603_185854_e.jpg


RE: Convert NTSC PSU to PAL (110V to 220/240V) - jacobsson - 07.06.2017 16:48

(21.05.2017 12:08)dragoncity писал(а):  I think just 220v after,test if you want ^^ Smile

Oh, I understand now. Your link is for Japanese PSU only.
My power supplies are US NTSC, not JP NTSC.


RE: Convert NTSC PSU to PAL (110V to 220/240V) - dragoncity - 07.06.2017 17:24

Ho yeah not the same PSU..I don't know... I had just this PSU any times,maybe Japanese PSU Wink