Olivetti d-Copia 600, Service Manual

Page: 183 / 454

1-5-27
C0210 CPU communication problem
• Synchronization cannot be taken
between the main CPU and engine
CPU.
Defective main
PWB. Replace the main PWB.
Poor contact in the
connector termi-
nals. Check the connection of the main PWB and
engine PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective engine
PWB. Replace the engine PWB.
C0220 CPU communication problem
• Synchronization cannot be taken
between the main CPU and scanner
CPU.
Defective main
PWB. Replace the main PWB.
Poor contact in the
connector termi-
nals. Check the connection of connector YC2 on
the engine PWB and YC5 on the scanner
PWB, and the continuity across the connec-
tor terminals. Repair or replace if necessary.
Defective scanner
PWB. Replace the scanner PWB.
C0240 Printer board* communication prob-
lem
• The printer board does not respond
120 seconds after the power is turned
on.
Poor contact in the
connector termi-
nals. Check the connection of connector YC9 on
the main PWB and the connector on the
printer board. Repair or replace if necessary.
DIMM installed
incorrectly. Check the connection. Repair or replace if
necessary.
Defective main
PWB or printer
board. Replace the main PWB or printer board and
check for correct operation.
C0250 Network scanner board* communica-
tion problem
• The response to the alive command to
the network scanner transmitted once
to 30 s does not come on the contrary
three consecutive times or more.
• The response to the communication
command transmitted to the network
scanner does not return 75 s or more.
Poor contact in the
connector termi-
nals. Check the connection of connector YC3 on
the main PWB and the connector on the net-
work scanner board. Repair or replace if
necessary.
Defective main
PWB or network
scanner board. Replace the main PWB or network scanner
board and check for correct operation.
C0330 Relay board communication problem Poor contact in the
connector termi-
nals. Check the connection of connector YC26 on
the main PWB and relay board, and the con-
tinuity across the connector terminals.
Repair if necessary.
If the problem is not solved, run mainte-
nance item U935 (see page 1-4-73) and
return the relay board to the Service Admin-
istrative Division.
C0410 DP communication problem
• There is no reply after 5 retries at com-
munication or a communication error
occurs.
Poor contact in the
connector termi-
nals. Check the connection of connector YC6 on
the scanner PWB and the connector on DP.
Repair or replace if necessary.
Defective DP main
PWB. Replace the DP main PWB and check for
correct operation.
Code Contents
Remarks
Causes Check procedures/corrective measures
Y104350-7 Sevice Manual