DPP-FP55 - Sony Other Service Manuals Service Manual (repair manual). Page 26

5-1

DPP-FP55

Download the latest firmware and obtain the technical memo from the ESI homepage.

Writing of firmware:
Be sure to write the latest firmware after replacing the BGA board. Otherwise, the normal operation cannot be performed.

Version Upgrade:
Perform the version upgrade when the functional upgrade (firmware version upgrade) is required.

1.

Download the latest firmware (hereafter referred to as firmware) from the ESI homepage.

2.

Copy the firmware (downloaded and uncompressed folder) to the root directory of the memory stick.

3.

Insert the memory stick into the memory stick slot of this unit.

4.

Insert one end of the power cord into the AC adapter (AC-S2425) supplied with this unit and insert the other end of the power cord into
the receptacle.

5.

Insert the DC plug of the supplied AC adapter into the DC-IN terminal of this unit.

6.

While pressing the [PRINT] button, press the [ON/STANDBY| button.

7.

Release your finger from the button when the ACCESS LED and the PRINT LED start flashing.

8.

After several minutes, check that the ACCESS LED and PRINT LED change to stay lit.
(Completion of firmware writing or version upgrade)

9.

Press the PRINT button to turn off the power.

10. Remove the memory stick.
11. While pressing the [ENTER] and [CANCEL] buttons simultaneously, press the [ON/STANDBY| button. (Service mode starts.)
12. Release all buttons when the initial screen of the service mode is displayed on the LCD display.
13. Check that the CHECKSUM value (hexadecimal value) displayed on the screen is the same as the value of the firmware version shown

in ESI homepage.

14. Turn off the power and disconnect the power cord from the receptacle.

1.

While pressing the [ENTER] and [CANCEL] buttons simultaneously, press the [ON/STANDBY| button. (Service mode starts.)

2.

Release all buttons when the initial screen of the service mode is displayed on the LCD display.
1) Check the CHECKSUM: value.

Check that the CHECKSUM value (hexadecimal value) displayed on the screen is the same as the value of the firmware version
shown in ESI homepage.

2) Check that the destination is not changed. (Destination is displayed by XX of “DPP-FP55 (XX)” on the topmost line of the service

mode screen.)

3) If destination is changed after version upgrade is completed, execute both items of destination change (as shown in [Procedure of

destination change] below) and LCD contrast adjustment (VCOM).
For the procedure of the LCD contrast adjustment (VCOM), refer to Service Manual “SECTION 1-1-4. Adjustment after LCD
Replacement”.

4) For the procedure of the destination change, refer to the next paragraph [Procedure of destination change] shown below.