Test Mode - Sony NW-A805 Service Manual

Note: Information on the test mode must correspond in enough securi-
ty. When the leakage has been revealed by any chance, the source
of information is specified.
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 [BACK] key for 1.5 seconds or more, the home menu
is displayed.
3. Slide the [HOLD] key to set the hold on.
4. While pressing the [OPTION] key, press the key as follow-
ing order.
→ → → → →
v B V b v
5. The set reboots when the [HOLD] key is slided to set the hold
off, and the color bar is displayed in the liquid crystal display.
6. Enter the test mode when the [BACK] key is pressed in the
state of step 5.
Note: The destination setting and sound pressure regulation set-
ting 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
v V
key to select the "SURE ?".
B
3. Press the key, turn the power off and release the test mode.
u
3. CONFIGURATION OF THE TEST MODE
Major item
[ ] [ ]
B key b
Minor item
[ ]
key
u
[BACK]
Start
Automatic
Finish
or
Result
4. OPERATION OF THE TEST MODE
4-1. Power
liquid crystal display
MPTAPP MENU
POWER VCHK
AUDIO ACHK
VIDEO DSVCHK
OTHER CHGCHK
SHUTDOWN BATTCHK
EXITTEST
SECTION 4

TEST MODE

→ → → → → →
u v b V B v
Major item switching:
[ ] / [ ]
v V key
key
Minor item switching:
[ ] / [ ] v V
key
key
4-1-1. Power supply voltage check
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 /
v V
key to enter the minor item.
3. Press the /
v V
4. Press the key, all power supply lines are started.
u
liquid crystal display
u
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 [BACK] key, return to minor item selection screen.
4-1-2. Consumption current (audio playback) check
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 outputed.
Checking method:
1. Enter the test mode.
2. Press the /
v V
key to enter the minor item.
3. Press the /
v V
4. Press the key, "1 kHz 0 dBs L-ch/R-ch VOLUE: 15" audio
u
signal is outputed.
liquid crystal display
POWER ACHK
1kHz 0dBs L/Rch
HPOUT [ VOL: 15 ]
START
5. In this state, each time the [OPTION] key is pressed, LCD back
light on/off switch is performed.
6. Press the [BACK] key, return to minor item selection screen.
NW-A805/A806/A808
key to select the "POWER", and press the
key to select the "VCHK".
key to select the "POWER", and press the
key to select the "ACHK".
B
B
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