LTQ Orbitrap XL Hardware Manual
LTQ Orbitrap XL Hardware Manual
LTQ Orbitrap XL Hardware Manual
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Figure 1-36. CLT RF unit (cover removed)<br />
RF off & feedback board<br />
Functional Description<br />
Printed Circuit Boards<br />
The diagnostic LEDs listed in Table 1-16 show the status of the voltages<br />
applied to the board as well as some operating states. The position of the<br />
LEDs on the board is indicated by the white rectangles in Figure 1-36.<br />
Table 1-16. Diagnostic LEDs of the CLT RF Main board<br />
No. Name Color Description Normal Operating<br />
Condition<br />
LD1 NO TERM Yellow SPI bus termination board<br />
missing<br />
LD2 SEND Yellow Interface has been addressed and<br />
sends/receives data<br />
Thermo Fisher Scientific <strong>LTQ</strong> <strong>Orbitrap</strong> <strong>XL</strong> <strong>Hardware</strong> <strong>Manual</strong> 1-51<br />
Off<br />
Flashing on SPI-bus<br />
data transfer<br />
LD3 SEL Green Board has been addressed Flashing on SPI-bus<br />
data transfer<br />
LD4 RF ON Green RF voltage on On<br />
LD5 NO LOCK Yellow PLL has been not locked 50% intensity<br />
LD6 OVL Yellow RF Amplifier overload Off<br />
LD7 OVHEAT Red Heatsink temperature > 73 °C Off
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