ViewSonic VS10848-1M Service Manual page 13

v. PANELVCC ON
In the period of POWER ON, the signal of control PANELVCC output a Hi level signal from PW2000
I/O port PNLPWR, PANELVCC will supply power to Panel via LVDS output Header
vi. INVERTER ON
When POWER ON, the signal of control Backlight-ON will output from I/O port BKLTPWR of U35
PW2000 via Q31, Q26 to 13
Power Supply forwards the signal to the Inverter of Panel and turn it on.
vii. BACKLIGHT ADJUST
The signal of Backlight Adjust which output from PWM I/O port of U19 PW328 sending a PWM
signal to U57 C621 converged into a DC signal then forward to Inverter of Panel via 12
to adjust the brightness of Backlight.
ViewSonic Corporation
th
pin of J17 and sends to Switching Power supply. Then Switching
12
Confidential - Do Not Copy
J5.
th
pin of J17
N3260w_N3760w
N4060w