Kyocera TASKalfa 3510i Service Manual page 427

When connecting the hard disk cables (YC1) to the PWB, match "BLACK" and "BLUE" marked on the PWB
with the connector colors.
When connecting the USB cables (YC21, YC22, YC26) to the PWB, connect to the connectors which the
cable length match.
(Connecting to any connector is satisfactory.)
YC26
YC22
BLACK
YC1
BLUE
YC2
YC21
Figure 1-5-73
Figure 1-5-74
1-5-43
2NL/2P8
Main PWB
Main PWB