X-Sus Pcb - Daewoo DP-42GM Service Manual

4-2-4.

X-SUS PCB

1) X_SUSTAIN PCB block diagram
15V GND Vadd GND
11
PU1
2) Structure of X_SUSTAIN PCB
X_SUSTAIN BLOCK
Vshelf Generating Circuit
15V to X_ N_SHELF(5V) voltage generating circuit
RU1
LOGIC Circuit that processes various waveform timing signal
P201A
GND GND GND NC Vsus Vsus
X_shelf
PU2 PU3
X_ELECTRODES
SUS_H / SUS_L / ER_H / ER_L(Energy Recovery Circuit)
HIC Structured
From Vsus(173V) to X_HIGHT(163V) voltage generating circuit
X
NC Vadd GND GND _HIGH
1 12
PU4
-25-
P202A
X X X
X_N_
GND GND _ERL _ERH _SUSL _SUSH 5V
SHELF
X_sustain
PU5 PU6
Control Voltage by Variable Resistor
X
1