Sony UP-CX2, Service Manual

Page: 55 / 122

2-11 (E)
UP-CX2
2-5-1. Backup of Various Information Items
1-5-2. Replacing the MA-140 Board
2-5-4. Processing Required When Information Items
Cannot Be Backed Up
2-5-2. Write of Firmware
1-5-2. Replacing the MA-140 Board
2-5-2. Write of Firmware
2-5-3. Write of Backed Up Information Items
When information items
cannot be backed up
2-4. DC Fan (for Inside)
1. Replace the DC fan (for inside). (Refer to Section 1-6-6.)
2. Resets the history of fan rotation. (Refer to Section 2-2-6.)
2-5. MA-140 Board
n
The MA-140 board mounts nonvolatile memory ( fl ash memory: IC105) that stores various information
items.
When replacing the MA-140 board, save the various information items in the board before replacement,
then write them to the board after replacement. To save/write, connect this unit with PC using USB and
operate using the service tool. For the service mode, refer to “Section 5 Service Mode”.
Working fl ow
1. Back up various information items. (Refer to Section 2-5-1.)
2. When information items cannot be backed up in step 1, print a test pattern (16STEP) if possible.
(Refer to Section 2-2-2.)
When the test pattern (16STEP) is unable to be printed, prepare it printed by the proper set.
3. Replace the MA-140 board. (Refer to Section 1-5-2.)
4. Write
fi rmware. (Refer to Section 2-5-2.)
5. Write the backed up information items. (Refer to Section 2-5-3.)
Perform the processing required for backup when information items cannot be backed up in step 1.
(Refer to Section 2-5-4.)