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X-631 Wheel Aligner Product Service Manual Hardware
2-15
Connect 9V power supply to J10, check with multi-meter if the voltage between J11-1 and J11-2 is 8.3V (normal output).
If it is normal, please connect the battery to J11, and check with multi-meter if the voltage difference on R47 is about
100mV. If it is, it indicates that the circuit can charge normally.
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Main-board power supply circuit
After connecting battery to main-board, measure with multi-meter the voltage between L2 and L4, it supplies the
other circuits on the main-board. If there is no the voltage, all other circuits on the main-board cannot work.
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The power supply of CCD circuit
Battery
socket
Connect to 9V
power supply
R47
L4_2
5V
L2_2
3.0V
D15_2
12V