Woodley InSight V5, Руководство по обслуживанию

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2 Instrument Configuration
Copyright © WOODLEY EQUIPMENT COMPANY LTD.
48
Position Code of
Indicator Light Meaning Normal Status
D15 1.8V digital power supply On
D14 TPS65910 3.3V working status
1
On
1- D14 usually indicates the working status of the ARM power management chip, TPS65910A31A1,
but this indicator light only indicates the working status of one LDO signal channel in TPS65910; the
multimeter can be used to test the corresponding testing points for other LDO and DC-DC channels.
For details, see
Digital Testing Points in the section of 2.3.1.4 Testing Points on the Main
Control Panel .
Analog power input and indicator lights
The analog power input of +12V and -12V on the main control panel can be tested for actual voltage
values via the testing points TP21 and TP22. The +12V power input is accompanied by the fuse F4,
while -12V is accompanied by the fuse F5. Like the 5V digital power input, +12V and -12V derive
power from the device's power supply; if both are subject to overload, they will receive surge
protection from the power source and the corresponding indicator lights will not be activated.
Table 2-3 lists the analog power indicator lights:
Table 2-3 Analog power indicator light
Position Code of
Indicator Light Meaning Normal Status
D18 +12V power indicator light On
D19 -12V power indicator light On
D23 -5V power indicator light On
D25 +5V power indicator light On
+5V and -5V originate from the linear stabiliser. The corresponding lights will not be activated by the
+5V or -5V overload, and the linear stabiliser will be very hot. If either the +5V or the -5V power
indicator light is not on, immediately power off the device and troubleshoot the corresponding
electrical circuits. We recommend replacing the main control panel.
Other indicator lights on the main control panel
The ARM and FPGA units are each assigned a single indicator light to show their working status on
the main control panel. In addition, a USB0 power indicator light is designated for the ARM unit.
Table 2-4 lists the indicator lights.