Sony NWZ-X1051 service manual Section Test Mode

NWZ-X1050/X1051/X1060/X1061

SECTION 3

TEST MODE

Note 1: Information on the test mode must correspond in enough security. When the leakage has been revealed by any chance, the source of information is specified.

Note 2: Execute “EXITTEST” when you release the test mode.

1. SETTING THE TEST MODE

Note: Perform the test mode in the state of 3.6 V or more in the battery voltage.

Setting method:

1.Turn the power on.

2.Press the [HOME] key, the home menu is displayed.

3.While touching the [Settings] icon on the touch panel, press

the key as following order.

[u] → [>] → [.] → [VOL +] → [>] → [VOL –] → [>]

4.The set reboots and the color bar is displayed in the liquid crys- tal display.

5.Enter the test mode when the [HOME] key is pressed in the

state of step 4.

Note: The destination setting and sound pressure regulation setting cannot be executed by this test mode.

2. RELEASING THE TEST MODE

1.Display the major item selection screen.

2.Press the [>]/[.] key to select the “EXITTEST”, and press the [u] key to select the “SURE ?”.

3.Press the [u] key, turn the power off and release the test mode.

3.CONFIGURATION OF THE TEST MODE

Major item switching:

Major item/

[>] [.] key

[u] key [HOME] key

Minor item switching:

Minor item/

[>] [.] key

[u] key

Start [HOME] key

Automatic

Finish

or

Result

4.OPERATION OF THE TEST MODE 4-1. Power (POWER)

Screen display

MPTAPP (X.XX.XX)

POWER VCHK

AUDIO ACHK

VIDEO DSVCHK

OTHER CHGCHK

CLESTE BATTCHK

DAC

FM

WIFI

NC

SHUTDOWN

EXITTEST

4-1-1. Power supply voltage check (VCHK)

This mode is used in case power supply voltage in the state where all power supply lines are starting is checked.

Checking method:

1.Enter the test mode.

2.Press the [>]/[.] key to select the “POWER”, and press the [u] key to enter the minor item.

3.Press the [>]/[.] key to select the “VCHK”.

4.Press the [u] key, all power supply lines are started.

Screen display

POWER VCHK

START

In this state, the power supply voltage of each power supply line can be confirmed by measuring the voltage.

5. Press the [HOME] key, return to minor item selection screen.

4-1-2. Consumption current (audio playback) check (ACHK)

This mode is used in case consumption current (audio playback) is checked in the state where “1 kHz 0 dBs L-ch/R-ch VOLUME: 15” audio signal is outputted.

Checking method:

1.Enter the test mode.

2.Press the [>]/[.] key to select the “POWER”, and press the [u] key to enter the minor item.

3.Press the [>]/[.] key to select the “ACHK”.

4.Press the [u] key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 15” audio signal is outputted.

Screen display

POWER ACHK

1kHz 0dBs L/Rch HPOUT [ VOL: 15 ]

START

5.In this state, each time the [>] key is pressed, LCD back light on/off switch is performed.

6.Press the [HOME] key, return to minor item selection screen.

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