SOURCE: toshiba e-studio 160, c56 error code.. how can i
C56 indicates Communications error between the PFC and the CPU on the main PWA. What u can do:
1.Check if the connector CN36 or CN35 on the relay PWA is disconnected.
2.Check if any conductor pattern (PFRXD, PFREQ, PFACK, MACK/PF, PFTXD, or MREQ/PF
between the IC, IC2 and CN36) on the relay PWA is open- or short-circuited.
3.Replace the relay PWA.
4.Replace the PFC PWA.
5.Replace the main PWA.
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