Sony NW-A1000 Service Manual ▷ View online
9
NW-A1000
SECTION 4
TEST MODE
Note:
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.
When the leakage has been revealed by any chance, the source of
information is specified.
1. BASAL CONDITION OF THE TEST MODE
Power supply voltage : 3.80 to 4.20 V
Volume
Volume
: 27
SOUND EQ
: OFF
AVLS
: OFF
HOLD
: OFF
Set states
: horizontal, playback stop
2. SETTING THE TEST MODE
Setting method:
1. Turn the power on.
2. Press the [HOLD] key to set the hold on.
3. While pressing the [LINK] key, press the key as following
2. Press the [HOLD] key to set the hold on.
3. While pressing the [LINK] key, press the key as following
order.
[ ]
v
→
[ ]
V
→
[OPTION]
→
[ ]
v
→
[ ]
V
→
[ ]
B
→
[ ]
b
→
[ ]
B
→
[ ]
b
→
[ ]
b
→
[ ]
u
→
[OPTION]
4. Press the [HOLD] key to set the hold off and enter the test
mode.
3. RELEASING THE TEST MODE
Press the [BACK] key for 1.5 seconds or more, turn the power off
and release the test mode.
and release the test mode.
4. CONFIGURATION OF THE TEST MODE
5. OPERATION OF THE TEST MODE
5-1. Power
5-1-1. Power supply voltage check
5-1. Power
5-1-1. Power supply voltage check
This mode is used in case power supply voltage in the state where
all power supply lines (1.10 V/1.3 V/1.8 V/3.0 V/3.0 V (VSTBY)/
3.3 V/5.0 V) are starting is checked.
all power supply lines (1.10 V/1.3 V/1.8 V/3.0 V/3.0 V (VSTBY)/
3.3 V/5.0 V) are starting is checked.
Checking method:
1. Enter the test mode.
2. Press the [ ]
2. Press the [ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “POWER”.
EL display
POWER
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “V CHK”.
EL display
V CHK
4. Press the
[ ]
u
key, “START” is displayed and all power supply
lines are started.
EL display
START
In this state, the power supply voltage of each power supply line
can be confirmed by measuring the voltage of the following
points.
points.
Specified Value:
TP9027: 1.10
±
0.05 V
TP9023: 1.3
±
0.1 V
TP9026: 1.8
±
0.1 V
TP9031: 3.0
±
0.1 V
TP9018: 3.0
±
0.1 V
TP9028: 3.3
±
0.1 V
TP9024: 5.0
±
0.2 V
5. Press the
[OPTION]
key, “HD ON” or “HD OFF” is displayed.
In this state, each time
[OPTION]
key is pressed, hard disk drive
power supply on/off switch is performed.
EL display
HD ON
6. Press the [BACK]
key, return to minor item selection screen.
[ ]
key
F/W version display
Major item
Major item switching:
[ ]
/
[ ]
key
[BACK]
key
Minor item
Finish
or
Result
Start
Automatic
u
[ ]
key
[ ]
key
B
b
[ ]
key
[ ]
key
B
b
v
V
Minor item switching:
[ ]
/
[ ]
key
v
V
TP9024
(5.0V)
TP9027
(1.10V)
TP9028
(3.3V)
TP9018
(VSTBY)
TP9026
(1.8V)
TP9023 (1.3V)
TP9031
(3.0V)
– MAIN Board (Component Side) –
10
NW-A1000
5-1-2. Consumption current (read state) check
This mode is used in case consumption current (read state) in the
state where the hard disk drive has booted is checked.
state where the hard disk drive has booted is checked.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “POWER”.
EL display
POWER
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “A RD”.
EL display
A RD
4. Press the
[ ]
u
key, “READY?” is displayed.
EL display
READY?
5. Press the
[ ]
u
key, “READ” is displayed and hard disk drive
becomes read state.
“FIN” is displayed automatically and read state is completed.
EL display
READ
r
FIN
6. Press the [BACK]
key, return to minor item selection screen.
5-1-3. Consumption current (write state) check
This mode is used in case consumption current (write state) in the
state where the hard disk drive has booted is checked.
state where the hard disk drive has booted is checked.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “POWER”.
EL display
POWER
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “A WR”.
EL display
A WR
4. Press the
[ ]
u
key, “READY?” is displayed.
EL display
READY?
5. Press the
[ ]
u
key, “WRITE” is displayed and hard disk drive
becomes read state.
“FIN” is displayed automatically and read state is completed.
EL display
WRITE
r
FIN
6. Press the [BACK]
key, return to minor item selection screen.
11
NW-A1000
5-2. Audio
While playing the audio track, it's in a repeat state. If [BACK]
key is
pressed, it’s stopped.
Press the
Press the
[VOL +]
key to switch the HP/LINE.
The data for audio test mode is copied to hard disk drive from PC
via USB.
via USB.
5-2-1. Output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 27” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “AUDIO”.
EL display
AUDIO
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “OUTPUT”.
EL display
OUTPUT
4. Press the [ ]
u
key, “START” is displayed and “1 kHz 0 dBs
L-ch/R-ch VOLUME: 27” audio signal is outputted. In this
state, each time [OPTION]
state, each time [OPTION]
key is pressed, MUTE ON/OFF
switch is performed.
EL display
START
5. Press the [BACK]
key, return to minor item selection screen.
5-2-2. S/N check
“Infinity Zero VOLUME: 27” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “AUDIO”.
EL display
AUDIO
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “SN”.
EL display
SN
4. Press the [ ]
u
key, “START” is displayed and “Infinity Zero
VOLUME: 27” audio signal is outputted.
EL display
START
5. Press the [BACK]
key, return to minor item selection screen.
5-2-3. Frequency characteristic check
“20 Hz/20 kHz/100 Hz/10 kHz 0 dBs L-ch/R-ch VOLUME: 21”
audio signal is outputted.
audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “AUDIO”.
EL display
AUDIO
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “F 1”.
EL display
F 1
4. Press the [ ]
u
key, “START” is displayed and “20 Hz 0 dBs
L-ch/R-ch VOLUME: 21” audio signal is outputted.
EL display
START
5. Press the [BACK]
key, return to minor item selection screen.
6. Press the [ ]
v
/ [ ]
V
key to select the “F 2”.
EL display
F 2
7. Press the [ ]
u
key, “START” is displayed and “20 kHz 0 dBs
L-ch/R-ch VOLUME: 21” audio signal is outputted.
EL display
START
8. Press the [BACK]
key, return to minor item selection screen.
9. Press the [ ]
v
/ [ ]
V
key to select the “F 3”.
EL display
F 3
10. Press the [ ]
u
key, “START” is displayed and “100 Hz 0 dBs
L-ch/R-ch VOLUME: 21” audio signal is outputted.
EL display
START
11. Press the [BACK]
key, return to minor item selection screen.
12. Press the [ ]
v
/ [ ]
V
key to select the “F 4”.
EL display
F 4
12
NW-A1000
13. Press the [ ]
u
key, “START” is displayed and “100 kHz 0 dBs
L-ch/R-ch VOLUME: 21” audio signal is outputted.
EL display
START
14. Press the [BACK]
key, return to minor item selection screen.
5-2-4. CH separation check
“1 kHz 0 dBs L-ch/R-ch MP3 VOLUME: 27” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “AUDIO”.
EL display
AUDIO
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “SEP LR”.
EL display
SEP LR
4. Press the [ ]
u
key, “START” is displayed and “1 kHz 0 dBs L-
ch MP3 VOLUME: 27” audio signal is outputted.
EL display
START
5. Press the [BACK]
key, return to minor item selection screen.
6. Press the [ ]
v
/ [ ]
V
key to select the “SEP RL”.
EL display
SEP RL
7. Press the [ ]
u
key, “START” is displayed and “1 kHz 0 dBs R-
ch MP3 VOLUME: 27” audio signal is outputted.
EL display
START
8. Press the [BACK]
key, return to minor item selection screen.
5-2-5. Maximum output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “AUDIO”.
EL display
AUDIO
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “MAXOUT”.
EL display
MAXOUT
4. Press the [ ]
u
key, “START” is displayed and “1 kHz 0 dBs L-
ch/R-ch VOLUME: 30” audio signal is outputted. In this state,
each time [OPTION]
each time [OPTION]
key is pressed, AVLS ON/OFF switch is
performed.
EL display
START
5. Press the [BACK]
key, return to minor item selection screen.
5-2-6. SOUND EQ check
“100 Hz/250 Hz/630 Hz/1.6 kHz/4 kHz/10 kHz –20 dBs L-ch/R-
ch VOLUME: 30” audio signal is outputted.
ch VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “AUDIO”.
EL display
AUDIO
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “EQ 1”.
EL display
EQ 1
4. Press the [ ]
u
key, “START” is displayed and “100 Hz –20
dBs L-ch/R-ch VOLUME: 30” audio signal is outputted. In
the state, each time [OPTION]
the state, each time [OPTION]
key is pressed, EQ LEVEL MAX/
MIN/OFF switch is performed.
EL display
START
5. Press the [BACK]
key, return to minor item selection screen.
6. Press the [ ]
v
/ [ ]
V
key to select the “EQ 2”.
EL display
EQ 2
7. Press the [ ]
u
key, “START” is displayed and “250 Hz –20
dBs L-ch/R-ch VOLUME: 30” audio signal is outputted. In
the state, each time [OPTION]
the state, each time [OPTION]
key is pressed, EQ LEVEL MAX/
MIN/OFF switch is performed.
EL display
START
8. Press the [BACK]
key, return to minor item selection screen.
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