Nv-Ram - Sony SRW-5000 Maintenance Manual

1-18. NV-RAM

There are the NV-RAMs (EEP-ROM, and RAM with backup battery) used on the boards in this unit.
These devices store the adjustment data, various setting data for this unit, data for the hours meters and
error log respectively, etc.
EEP-ROM: Electric Erasable P-ROM
After replacing above-mentioned device, take the following service actions.
IC206 on the CP-382 board and IC116 on the SS-95 board are the only NV-RAM with backup battery.
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After replacing the NV-RAM, the error (error code 97, or A8) will occur at power-on.
After replacing IC116/SS-95:
After replacing IC101/DR-508: Occurs Error code 97.
Board / Ref.No. Type
CP-382 / IC206 NV-RAM
DR-508 / IC101 NV-RAM
EQ-94 / NV-RAM
IC2907, 2908
SS-95 / IC116 NV-RAM
Refer to Section 3 for the menu of the maintenance mode.
SRW-5000/5500
Occurs Error code A8. (Then, settings are reset to factory setting.)
Stored data
RGB gain adjustment value of the
color display
POWER ON BACK RECALL setting
data
Servo/DT adjustment data
Hours meter data
Adjustment data for the EQ-94 board
Setting data of setup menu
(Current and banks 1 to 8)
Error log data
CUE point list data
Calendar/clock
Settting data of VTR bank
Headroom of audio level meter
50-pin remote setting data
Network information
Service action after replacing
Readjust the gain of the color display by the [F8] (LCD GAIN)
of the OTHERS CHECK menu. (Refer to Section 3-3-9.)
Set by the ALT + [F4] (POW-ON RECALL) of the VTR BANK
menu again. (Refer to the operation manual for resetting.)
Readjust the servo/DT systems. (Perform Section 8-3.)
None
Readjust the EQ-94 board (RF system). (Perform Section 8-4.)
Set the setup menu again.
(Refer to the operation manual for resetting.)
None (All data are lost.)
None (All data are lost.)
Set the calendar and clock again by the ALT + [F9] (REAL
TIME) of the error logger menu. (Refer to Section 3-2-3.)
Set the VTR bank again.
Set by the [F4] (HEAD ROOM) of the OTHERS CHECK menu.
(Refer to Section 3-3-9.)
Set by the [F6] (PARA-I), [F7] (PARA-0) of the OTHERS
CHECK menu. (Refer to Section 3-3-9.)
Set by the [F3] (NETWORK SETUP) of the OTHERS CHECK
menu. (Refer to Section 3-3-9.)
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