Lenovo ThinkCentre A53 Hardware Maintenance Manual - Page 134
Rear connectors, Audio line in connector
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Rear connectors The following illustration shows the locations of the connectors on the rear of the computer. 1 Power supply diagnostic LEDs 2 Voltage selection switch (some models) 3 Power connector 4 Mouse connector 5 Keyboard connector 6 Serial connector 7 Parallel connector 8 VGA monitor connector 9 USB connectors 10 Ethernet connector 11 USB connectors 12 Microphone connector 13 Audio line out connector 14 Audio line in connector 15 PCI and PCI Express adapter slots (type of adapter depends on system board) 128 Hardware Maintenance Manual
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Rear connectors
The following illustration shows the locations of the connectors on the rear of the
computer.
±1²
Power supply diagnostic LEDs
±9²
USB connectors
±2²
Voltage selection switch (some models)
±10²
Ethernet connector
±3²
Power connector
±11²
USB connectors
±4²
Mouse connector
±12²
Microphone connector
±5²
Keyboard connector
±13²
Audio line out connector
±6²
Serial connector
±14²
Audio line in connector
±7²
Parallel connector
±15²
PCI and PCI Express adapter slots (type
of adapter depends on system board)
±8²
VGA monitor connector
128
Hardware Maintenance Manual