Ricoh A-P4, Service Manual

Page: 166 / 381

828 D
Self-diagnostic error 7: ROM
Measuring the CRC for the boot monitor and
operating system program results in an error.
A check of the CRC value for ROMFS of the
entire ROM area results in an error.
• Software defective
• Controller board defective
• ROM defective
829 B
Self-diagnostic Error: Optional RAM
• Replace the optional memory board
• Controller board defective
The optional RAM returned an error during
the self-diagnostic test.
838 D
Self-diagnostic Error: Clock Generator
• Replace the controller board
A verify error occurred when setting data
was read from the clock generator via the
I2C bus.
850 B
Net I/F error
• Duplicate IP addresses.
• Illegal IP address.
• Driver unstable and cannot be
used on the network.
• IP address setting incorrect
• Ethernet board defective
• Controller board defective
853 B
Wireless LAN (802.11b) Error 1
During machine start-up, the machine
can get access to the board that holds
the wireless LAN, but not to the wireless
LAN card.
• Wireless LAN card missing (was removed)
854 B
Wireless LAN (802.11b) Error 2
During machine operation, the ma-
chine can get access to the board that
holds the wireless LAN, but not to the
wireless LAN card.
• Wireless LAN card missing (was removed)
855 B
Wireless LAN (802.11b) error 3
Service Call Conditions
165
4