6
Block Diagram (1CH)
INPUT
BALANCED
H
C
G
AC/N
INPUT : 200 Vac ~ 240 Vac
EMI FILTER
AC/L
F/G
RECTIFIERS
22
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AUDIO LEVEL METER
DRIVER
SHORT P/T
OVER CURRENT P/T
TEMPERATURE P/T
DRIVER
DIGITAL PROFESSIONAL AMP
RECIFIERS
ACTIVE INRUSH
& P.F.C
CURRENT
POWER
MAIN SWITCHING
LIMITING
SWITCHING
FEED BACK CONTROL
P.F.C / PWM
O.V.P/O.C.P
&
CONTROL
P.W.M
BATTERY ( + )
MAIN
SWITCHING
ISOLATED
BATTERY ( - )
TRANSFOMER
AC/ DC SMPS
+VBB
FET
PWM
FET
-V E E
+VBB
FET
PWM
FET
-VEE
RECTIFIERS
PWM
&
FILTER
ISOLATED
TRANSFORM
CURRENT SENSING
FEED BACK CONTROL
DETECTING
CIRCUIT
O.V.P / D.T.P
REMOT CONTROL
AUXI Liary
+85VDC
-85VDC
REMOT CONTROL
+12 V
FAN LOCK &
FAN
PROTECTION
-12 V