Olivetti d-color MF651, Service Manual, Page: 886 / 1053

19. TROUBLE CODE Field Service Ver. 2.0 Jul. 2009
826
TROUBLESHOOTING
19.5.167 C9401: Exposure turning on the lamp trouble detection
19.5.168 C9402: Exposure turning on the lamp abnormally detection
19.5.169 CA051: Standard controller configuration failure
19.5.170 CA052: Controller hardware error
19.5.171 CA053: Controller start failure
Relevant parts
Exposure unit
Flat cable Inverter board (INVB)
CCD board (CCDB)
Scanner relay board (REYB/SCAN)
MFP board (MFPB)
Step Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1 Check the connection between the lamp
harness and the inverter board, and correct
if necessary. — —
2 Check the connection between REYB/
SCAN and the inverter board, and correct if
necessary. — —
3 Check the connection between REYB/
SCAN and MFPB, and correct if necessary. — —
4 Check that the connection between CCDB
and IPB, and correct if necessary. — —
5 Change INVB — —
6 Change exposure unit — —
7 Change IPB — —
8 Change CCDB — —
9 Change REYB/SCAN — —
Relevant parts
MFP board (MFPB)
Step Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1 Check to see if the following setting has
been correctly made: [Service Mode]
o
[System 2] o [Image Controller Setting].
If changing the setting, turn OFF the main
power switch and turn it ON again after 10
seconds or more.
— —
2 Check the connectors of the MFP board
(MFPB) for proper connection and correct
as necessary. — —
3 Change MFPB — —
Service Manual Y110571-1