Lenovo ideacentre All-In-One 520 Hardware Maintenance Manual page 36

11. Backlight Connector
12. DC-IN Connector
13. Ethernet Connector
14. HDMI—out Connector
15. USB 2.0 Connector
AIO 520-27ICB
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1. Camera connector
2. System fan connector
3. ODD power connector
4. HDD power connector
5. Touch connector
6. ODD SATA connector
7. HDD SATA connector
8. LVDS Connector
9. LVDS connector
10. Converter connector
11. DC-IN connector
12. Ethernet connector
13. HDMI-in connector
14. USB 2.0 connector
15. USB 2.0 Connector
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ideacentre All-In-One 520 (27 inch) Computer Hardware Maintenance Manual
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26. RAM connector
27. Bluetooth connector
28. Battery
29. CPU
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16. USB 3.1 connector
17. USB Type C connector
18. HDMI-out connector
19. Power switch board connector
20. MIC connector
21. I/O board connector
22. Speaker connector
23. I/O board connector
24. Wifi connector
25. SSD SATA connector
26. RAM connector
27. Battery