Replacing Nv-Ram And Memory Backup Battery - Sony HDV HVR-1500 Service Manual

2-12. Replacing NV-RAM and Memory Backup Battery

(1) Overview
This unit is provided with a batter backed RAM and EEPROMs on the boards.
These memory devices store system setup data, adjustment data, and other data.
When any of these devices or the backup battery is replaced, the memory data must be rewritten.
Board Ref. No.
AVP-7 IC156
DR-428BG IC8
KY-616 IC300
RP-133 IC501
SSS-12 IC538
IC539
2-16
Type Stored data
EEPROM AVP BOARD ADJ adjustment value of maintenance menu
EEPROM Hours meter data
Serial number data
Error log data
Mechanical deck adjustment value
EEPROM LCD ADJ adjustment value of maintenance menu
EEPROM RP adjustment value of maintenance menu
RAM SYSTEM SEL setting data of setup menu
(with backup battery) Input/output setting data
EEPROM Setup menu data
Menu bank 1-3 data
HVR-1500