Read Sony KDE-55XBR950 (serv.man2) Service Manual online
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3.3.2 Function of X-SUS Board
(1) DC/DC power supply block
Vs (+85V) Æ Vw (+190V) / Vx (+40V) / Vu (+35V) / Vq (-40V)
Vcc (+5V) Æ Vex (+16V) / XFve (+18V, floating)
(2) X switching block
Switching during address period
Switching during sustain period
Switching during reset period
(3) Current detector block
Isx (sustain) current detection
Ia (address) current detection
(4) Voltage detector block
Vs (sustain) voltage detection
Va (address) voltage detection
3.3.3 Function of Y-SUS Board
(1) DC/DC power supply block
Vcc (+5V) Æ Vey (+16V) / YFve (+18V, floating)
(2) Y Switching block
Switching during address period
Switching during sustain period
Switching during reset period
(3) Current detector block
Isy (sustain) current detection
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