Sony DNW-A220 - Nv-Ram; Rf Nv-Ram Error

2-14
DNW-A220
DNW-A220P
ERROR-97 SV NV-RAM ERROR
(SV NV-RAM)
Description: The abnormal operation of an NV-RAM (SV-194 board) for the servo system
was detected.
Detecting condition: When the checksum of NV-RAM data does not coincide during activation.
Sub error message: None
Possible cause: NV-RAM (IC114 on SV-194 board) trouble
Protecting operation: Enters the protection mode
ERROR-98 RF NV-RAM ERROR
(RF NV-RAM ERROR)
Description: The abnormal operation of an NV-RAM (EQ-72 or DM-114/114P board) for RF
system was detected.
Sub error messages and Detecting conditions:
EQ: When the error occurs in an NV-RAM (IC703 on EQ-72 board) during
the data write or read.
DM: When the error occurs in an NV-RAM (IC909 on DM-114/114P board)
during the data write or read.
TBC: When the error occurs in an NV-RAM (IC1812 on DM-114/114P board)
during the data write or read.
Possible causes: Trouble of an NV-RAM indicated by sub error message
Protecting operation: None
2-2. Details of Error Messages