求翻译：当启动按钮处于ON档电时，当组合开关转至“A” 位时，按下背光调节开关能够同步调节组合仪表及仪表板（包括空调音响面板背光、方向盘按钮背光）的背光亮度。是什么意思？

When the start button is ON file electricity, when the combination switch to the "A" position, press the backlight adjustment switch to adjust the synchronization and dashboard instrument cluster (including audio panel backlight air conditioning, steering wheel buttons backlight) of the backlight br

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When the start button is in on files electricity, when the combined switch transfers to “A” the position, presses down the back light regulating cock to be able the synchronized adjustment combination measuring appliance and the display board (including air conditioning sound kneading board back lig

When you start the button is ON, when combined switch goes to "a" position, press backlight adjustment switch can hold control combined meter and instrument panels (including air condition sound Panel backlight, the steering wheel button backlight) backlight brightness.

When you start the button is ON, when combined switch goes to "a" position, press backlight adjustment switch can hold control combined meter and instrument panels (including air condition sound Panel backlight, the steering wheel button backlight) backlight brightness.