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Power Supply Schematic for NEC 22" LCD monitor NW2200

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tonytech

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Hi,
I need any schematics for a NEC LCD monitor model NW2200, in particular the power supply. I am not sure what the part number for the power board is but it has the following numbers on the PBA:
P771-85P048-09592 (sticker)
E202404 (stencil on top of PBA)
465-0103-17006G-A1 (copper etched on the bottom of the PBA)
The converter uses a N-channel Mos-fet 2SK2645-01MR
There is an IC associated with the MOS-FET - looks to be marked 1271A ??

Any help would be appreciated.
Thanks in advance,
Tony.
 

Re: Power Supply Schematic for NEC 22" LCD monitor NW22

Hi,

I had the same problem with this SMPS IC on a LCD monitor Haier 22''.......
I found it !
1271A marking= NCP1271A (ON Semiconductor) ,
suffix A =Switching Frequency 65KHZ
Case SOIC-7 (SMD)
Exact reference : NCP1271D65R2G

datasheet:
https://pdf1.alldatasheet.com/datasheet-pdf/view/166531/ONSEMI/NCP1271.html

Best regards !
 

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