Lenovo ThinkCentre A35 Service Manual page 27

12) SPDIF_IO (SPDIF In/ Out)
The SPDIF output is capable of providing digital audio to external speakers or compressed AC3data to an
external Dolby Digital Decoder. Use this feature only when your stereo system has digital input function.
Use SPDIF IN feature only when your device has digital output function. Be careful with the polarity of the
SPDIF_IO connector. Check the pin assignment carefully while you connect the SPDIF_IO cable. Incorrect
connection between the cable and connector will make the device unable to work or even damage it. For
optional SPDIF_IO cable, please contact your local dealer.
13) F1_USB / F2_USB (Front USB Connectors)
Be careful with the polarity of the front USB connector. Check the pin assignment carefully while you
connect the front USB cable, incorrect connection between the cable and connector will make the device
unable to work or even damage it. For optional front USB cable, please contact your local dealer.
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