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Flash Extractor用户手册- External power

External power

Attention: This article is for people who understand what they do. You can damage reader and memory chip with wrong actions!

Adapter modification

Find two pin connector and jumper

Flash Extractor用户手册- External power 1

Drill holes for it in pcb (d=1mm)
Remove trace between holes

Flash Extractor用户手册- External power 2

Remove varnish from traces by sides

Flash Extractor用户手册- External power 3

Put connector in holes
And bend his legs

Flash Extractor用户手册- External power 4

Solder legs to traces
Attention: Do not put solder on gold adapter contacts. You can lost your adapter at this step

Flash Extractor用户手册- External power 5

To use reader power, put jumper on connector
To use external power, remove jumper

Flash Extractor用户手册- External power 6


Using external power

Solder power wires to capacitor
3.3V is near white line on capacitor

Flash Extractor用户手册- External power 7

Remove jumper
Attach adapter to external power source

Flash Extractor用户手册- External power 8

Memory chip supply current usualy about 10mA (0.01A) or less
If current is much bigger, immediately turn power off

Attention: Safe voltage range for reader is 2.4 .. 3.3V

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