Olivetti DF-790 Service Manual page 78

Code Contents
8930 Center-folding unit backup
error
Read and write data does not
match 3 times in succession.
Service Manual
Causes
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. CF main PWB (YC7) and DF main PWB
(YC9)
Improper installa- Check the installation of the EEPROM and
tion EEPROM. remedy if necessary.
Defective CF main Replace the CF main PWB and check for
PWB. correct operation.
1-4-25
3NB/3ND/3N0/3NK
Check procedures/
corrective measures
Y113480-7