Backlight Inverter Connector Details (D3243-S) - Fujitsu D3231-S Technotes

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6.11 Backlight Inverter Connector Details (D3243-S)

1.
LVDS Backlight Brightness Control Jumper
(Select analog or PWM output)
a
g
e
Backlight Inverter Connector: JST PHR-8
.
8
Backlight Brightness Control:
Provides a variable DC voltage between 0V and 4V via an RC filter (10kOhm / 20uF; buffered output).
Alternatively a PWM control is available, please see related jumper setting.
Basically the brightness level can be selected by BIOS Setup, but it is also accessible
from Windows OS.
If this control signal is used, the system integrator is responsible for the implementation of a backlight
converter that fits to the control output voltage range.
Backlight On/Off Control:
Active High, 3.3V Note: Polarity can be changed via BIOS Setup
TechNotes D323x-S_D3243-S V1.2
mainboards
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