Lenovo x3530 M4 Installation And Service Manual page 127

Figure 68. LEDs on the system board
Light path diagnostics panel
The following illustration shows the optional advanced light path diagnostics panel.
The light path diagnostics panel is available on the top of the advanced operator information panel. For
additional information about the light path diagnostics and LEDs on the light path diagnostics panel, see
"Light path diagnostics" on page 111 and "Light path diagnostics LEDs" on page 115.
113
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Chapter 4 Troubleshooting