Sony PRS-T2 Service Manual page 14

PRS-T2
12. Reset Device Lock
When the Device Lock is effective, it can be released.
Note: When this mode is performed, it is necessary to reboot this unit and
to validate the settings. Touch the "Reboot (Normal)" in the test
mode menu.
Procedure:
1. Touch the "Reset Device Lock" in the test mode menu.
2. When the Device Lock is effective, the following screen is dis-
played.
Touch the "Yes", the Device Lock becomes invalid.
It returns to the test mode menu when "No" is touched.
@Test Mode
Version: X.X.X
Target storage: Internal
Test Panal Update Waveform
Drawing with
Points
Reset Device Lock
TP Coordinate Reset Device Lock
Status: Locked.
Test All Key
Test Battery Life Log Extact 1
Would you like to unlock?
Version
Confirmation Temperature
Yes
Check Battery Write VCOM
Set Sleep Timeout
Factory Initialize WWAN OFF
Re-fetch 3G
(Screen display)
When the Device Lock is not effective, the following screen is
displayed. Touch the "OK", return to the test mode menu.
@Test Mode
Version: X.X.X
Target storage: Internal
Test Panal Update Waveform
Drawing with
Points
TP Coordinate Reset Device Lock
Reset Device Lock
Test All Key
Status: Unlocked.
Test Battery Life Log Extact 1
Version
Confirmation Temperature
Check Battery Write VCOM
Set Sleep Timeout
Factory Initialize WWAN OFF
Re-fetch 3G
(Screen display)
13. Power Off
This mode is not used in servicing.
14. Log Extract 1
This mode is not used in servicing.
15. Check Temperature
This mode is not used in servicing.
14
IR-LED Level
Update SP1
Check 3G Module
Parameters
Check User
History
Power Off Switch ADB
Fake MoAkey
Check
Reboot (Normal)
No
Reboot (Recovery)
WWAN ON Radio Logcat
Get "traces.txt"
Log Extact 2
Identifier (Flush)
IR-LED Level
Update SP1
Check 3G Module
Parameters
Check User
History
Power Off Switch ADB
Fake MoAkey
Check
Reboot (Normal)
OK
Reboot (Recovery)
WWAN ON
Radio Logcat
Get "traces.txt"
Log Extact 2
Identifier (Flush)
16. Write VCOM
In this mode, the VCOM voltage can be rewritten.
The VCOM voltage for ELEMENT INK INDICATOR 6inch is
individually different.
Therefor, when replacing the complete MAIN board or CHASSIS
ASSY (including ELEMENT INK INDICATOR 6inch) you need
to rewrite the VCOM voltage.
Confi rmation:
The VCOM voltage confi rm method is different according to re-
placed parts.
When the complete MAIN board is replaced:
Disassemble this unit until the VCOM voltage is seen (Refer to "2.
DISASSEMBLY" (pages 4 to 9)), and confi rm the VCOM volt-
age referring to the fi gure below. Record the confi rmed the VCOM
voltage by taking the memo etc..
Flexible board of ELEMENT
INK INDICATOR 6inch
-2.03
VCOM voltage
When the CHASSIS ASSY (including ELEMENT INK IN-
DICATOR 6inch) is replaced:
Confi rm the VCOM voltage described on the label of new CHAS-
SIS ASSY (including ELEMENT INK INDICATOR 6inch). Re-
cord the confi rmed the VCOM voltage by taking the memo etc..
Procedure:
1. Replace complete MAIN board or CHASSIS ASSY (including
ELEMENT INK INDICATOR 6inch) for new parts, and as-
semble this unit.
2. Make the text fi le on PC, and write the VCOM voltage re-
corded on memo etc..
Note 1: The VCOM voltage is described by the unit of mV that omits
minus.
(Example: Write "2030" when it is printed on the label as "–2.03 V")
3. Press the [1] key to turn the power on.
4. Confi rm the HOME menu was completely displayed, and con-
nect this unit to PC by the USB cable (MICRO B).
5. Confi rm the USB connection screen displayed, and touch the
"Yes".
Do you want the computer to recognize
this device?
Yes
Tap [Yes] to install Reader
application, or transfer content.
Tap[No] to use Reader while charging.
Note: This screen will show whenever connecting with the
USB cable.
OFF
No
for PC or Reader for Mac
TM TM R