Sony HDW-F500 - Manual (Page 137)

Appendix
A-9
Appendix
A2 DR NOV RAM CHECK SUM ERROR: Error detected while reading machine type data when the unit was turned on.
A3 SYS NOV RAM CHECK SUM ERROR: Error detected while reading menu settings data when the unit was turned on.
A4 PLAYER CONTROL COMMAND BUFFER FULL: The 9 pin serial communication send buffer for player control is full.
A5 RS-422 REMOTE COMMAND BUFFER FULL: The 9 pin serial communication receive buffer is full.
B0 DT HARD ERROR: Error detecting during DT distortion removal.
B1 TCG HARD ERROR: Possibly a hardware error in the time code generator circuit or peripheral hardware.
B2 DCP-26 BOARD INSTALLATION ERROR: The two DCP-26 boards are installed.
B3 DCP-26 & PD-94 BOARD INSTALLATION ERROR: The DCP-26 board and PD-94 board are installed to the wrong position.