Samsung HPS5053X/XAA (HP-S5053) Service Manual page 121

■ Drive Circuit Operating Block Diagram
- Y Drive Board
- X Drive Board
■ Requisite Components Necessary for Drive Board Operation
1) Power
- Supplied from the power board. The optimal value may differ from the following:
a) Vs : 200V - Sustain
b) Vset : 190V - Y Rising Ramp
c) Ve : 110V - Ve bias
d) Vscan : -190V - Scan low bias
e) Vsc_h : -70V - Scan high bias (Created by the DC-DC power block of the Y Drive board)
f) Vdd : 5V - Logic signal buffer IC
g) Vcc : 15V - Gate drive IC
2) Logic Signal
- Supplied by the Logic board
- Gate signal of each switch
Samsung Electronics
Circuit Description
13-17