Section 2
Service Overview
2-1. Setup when Replacing Board, Memory or Battery is Replaced
The required procedures are described below when the board, memory on board or battery is replaced.
AD-160 Board
Adjustment after board is replaced
A/D Video Level Adjustment (Refer to Section 4-6-4.)
DA-136 Board
Adjustment after board is replaced
D/A Video Level Adjustment (Refer to Section 4-5-2.)
FM-68 Board
Precaution when replacing battery
Even though contents of the RAMs are backed up by the super capacitor, replace the battery in a short
time (60 minutes or less).
Procedure before replacing board or memories (IC350 to IC357 and IC400 to IC407)
1. Unload the file.
2. Back up the memory contents. (Refer to Section 1-3.)
Procedure after board or memory is replaced
Restore the memory contents. (Refer to Section 1-3.)
When the board is replaced, turn on the switch S103 (BATTERY).
PU-109 Board
n
The HDD error information is stored in the RAMs (IC304 to IC306) on the PU-109 board.
This information cannot be backed up before initiating to replace the PU-109 board. Be careful of the
followings when replacing the board, memory or battery.
Precaution when replacing battery
Contents of the RAM are backed up by the super capacitor. Replace the battery in a short time (60
minutes or less).
Precautions when replacing board or memories (IC303 to IC306)
. When replacing the board or RAMs, contents of the RAMs are erased. Erasing the HDD error informa-
tion may prevent the HDD from being read or written normally.
. When the board is replaced, turn on the switch S300 (BATTERY).
MAV2-1 (E)-555 |
ACEC
