Lvds Power Supply On/Off (Wave Form) - THOMSON 50M14DP Service Manual

3.22 LVDS power supply ON/OFF (wave form)
Follow is the LVDS power on/off timing test: Purple means VCC, Green means SIGNAL,
Blue means BL‐ON.
PIN1,2,3,4 of P600 or The D of Q601:The
test point of LVDS power supply. B of
Q600 is high level in normal. Gate's level
of Q601 will be dragged down when Q600
is break‐over. Then Q601 (P channel MOS)
will break‐over to supply power to LVDS.
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