Freedom Enterprise MisMatcher01 Rev.D Руководство - Страница 6
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Печатать страницуB. USER INTERFACE
Start by placing the PJ-341 jacks and solder them. Snap the gold RCA
jacks and potentiometers in place. Place the LED in the right orientation
as well as the 270
W
components. The male header will be soldered later on.
To passively mix two video signals with one potentiometer, solder
a 500
W
resistor from one fixed end of potentiometer A to the wiper, and
another 500
W
resistor from the other fixed end of potentiometer A to the
wiper.
C. MAIN PCB
Start with the smaller components, such as resistors, diodes, ceramic
capacitors and the ferrite bead. Note that the diodes have polarity and
must be installed in the correct orientation. Follow this by installing the
electrolytic capacitors and transistors. These also have their own orientation,
printed on the PCB. Trim the excess leads.
Use four of these trimmed leads and solder them on the Micro USB
connection, in the main PCB. Place the Micro USB connector flush with the
main PCB and solder it to the previously soldered leads. Trim the excess.
current limiting resistor. Solder these remaining
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