Vision Fitness TF20 Service Manual page 32

LVDS 接口
e. If there is not 12VDC power supplied, check if the console cable is in good condition. If yes, check the output power
of the MCB (12VDC). If no output, replace the MCB
OK
f. If the 12VDC power supply is ok, re-confirm the connection of the LVDS* interface to the display. Powered on, the
UCB power supply is 12VDC, confirm whether the voltage is negative as the figure shows.
g. If the power output of the LVDS interface is ok, check the LVDS wire for breakage or loose connections, if not ok,
replace the display.
h. If there is no 12VDC output from the LVDS interface, replace the console.
* LVDS ：Low-Voltage Differential Signaling,
GND
12VDC
UCB connection floating high
LVDS interface is LCD Panel universal interface standard
cable connection not be inserted
fully
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