9-4.
Power System
9-4-1.
PS-921 Board
The unit uses the inputted DC 12V power to DC IN connector (XLR 4-pin).
This board provides the functions of under-voltage and over-voltage cut-off for input power, and function of current
limit for UNREG output.
The power circuit generates +3.7 V, +1.8 V for block power, then supplies power to block.
This board supplies the powers (UNREG, +5.3 V, +3.6V and -5.5 V) to each board, and the powers are converted to
voltage to be used at each board.
9-4
HDC-P43