Sony NW-WM1A Service Manual page 34

NW-WM1A/WM1Z
12. The WALKMAN main unit reboots and the test mode menu is
displayed on the WALKMAN main unit.
Screen display
Diagnosis APP
[ver X.XX.XX]
Noise cancel
Direct Rec
BT safety test
BT test tools
NFC Read/Write
Touch screen
FM tuner
SD card
Shutdown
13. Input "exit" and press the Enter key to close the command
prompt application software.
C:\NWXXXX_TestMode_V1.00>exit
14. Disconnect the WALKMAN main unit from PC (personal
computer).
3. RELEASING THE TEST MODE
Releasing method:
To release the test mode, please performed with refer to "5-16-
2. Power off (test mode release)" or "5-16-4. Reboot (test mode
release)".
Screen display
Diagnosis APP
[ver X.XX.XX]
Shutdown
PowerOFF (diag)
PowerOFF (normal)
Reboot (diag)
Reboot (normal)
34
Power
Audio
Video
USB
Key
NVP
Others
Input
USB cable
Test mode status release
and the shutdown.
Test mode status release
and the reboot.
4. CONFIGURATION OF THE TEST MODE
Major item
[u] key or [.] key or
[>] key [HOLD] switch on
Minor item
[u] key
Start [HOLD] switch on
Automatic
Finish
or
Result
5. OPERATION OF THE TEST MODE
5-1. Power (Power)
Screen display
Diagnosis APP
[ver X.XX.XX]
Voltage check
Current check
DeepSleep check
Charge check
Battery voltage
Battery status
Thermistor check
5-1-1. Power supply voltage check (Voltage check)
It can be check the power supply voltage in the state where all
power supply lines are starting.
Procedure:
1. Enter the test mode.
(Refer to "2. SETTING THE TEST MODE" on page 33)
2. Press the [+]/[–] keys to select the "Power", and press the [
or [ ] key to enter the minor item.
>
3. Press the [+]/[–] keys to select the "Voltage check".
4. Press the [ ] key, power supply voltage check screen is dis-
u
played.
Screen display
Power V check
(POW VCHK command)
>>> STOP
5. Press the [ ] key, all power supply lines are started.
u
6. In step 5 state, the power supply voltage of each power supply
line can be confi rmed by measuring the voltage.
7. Slide the [HOLD] switch in the direction of on, to return to
minor item selection screen.
Major item switching:
/
[+] [–] keys
Minor item switching:
/
[+] [–] keys
Power
]
u