Sony NW-MS7 Service Manual ▷ View online
– 9 –
2
B1.7x9
1
CN701
2-2. LID ASSY (SERVICE), UPPER
Note : When removing the “lid assy (service), upper”, remove the parts
in the following order as the claws are easy to be broken.
4
Push the case.
case
lid assy (service), upper
5
claw
6
claw
7
claw
8
claw
Use your fingernail to
push the “lid assy (service), upper” up.
push the “lid assy (service), upper” up.
3
Use your fingernail to
push the “lid assy (service), upper” up.
4
–
7
Push the “lid assy (service), upper” or spread the case to detach the claw.
9
Use your fingernail to push the “lid assy (service), upper” up.
– 10 –
1
M 1.4
4
CN707
5
CN706
6
MAIN board
2
3
Note: Be careful no to damage
the claw of switch S806.
the claw of switch S806.
Push out a little.
Spread a little.
MAIN BOARD
knob
(EJECT)
(EJECT)
knob (HOLD)
• Note for installation
Insert the memory stick and check for opening and closing of the shutter.
If NG, the memory stick shutter cannot be fully closed,
which disallows the connector shutter to be opened.
If NG, the memory stick shutter cannot be fully closed,
which disallows the connector shutter to be opened.
When installing, adjust the knob (EJECT)
to the claw on the eject mechanism.
to the claw on the eject mechanism.
Place the slag in the flexible
cable under the LCD unit.
cable under the LCD unit.
LCD unit
LCD unit
LCD unit
LCD unit
OK
NG
flexiblecable
2-3. MAIN BOARD
Note : When installing, fit the knob (HOLD) and switch (S806).
– 11 –
1
screw
3
screw
2
HP board
4
CN board
2
claw
3
claw
4
claw
5
CN702
7
LCD block assy
8
MAIN board
1
Removal the solders.
6
2-4. LCD BLOCK
2-5. HP BOARD, CN BOARD
– 12 –
Test No.
Test item
Test MS
STEP
Test item
Display
display
Description of the test
playback
track
The address and data buses are tested by reading/writing
-1
RAM test
32-bit data. (The ROM checksum is also checked in this step.)
The backlight turns on to indicate that this test is OK.
0
LCDs all ON/all OFF
Test ¢1
1.¢1b
Check for unusual condition in any LCD segments and
(Ver. No.)
common signal. Visually check.
1
BEEP generation
Test ¢1
Continuously sounds BEEPs.
2
Destination setting
Test ¢2
SEL SIMUKE
The destination is set by pressing the
B
(PLAY) KEY. (For
example, For A
t
B
KEY
t
For B
t
B
KEY
t
For C)
3
Test ¢3
E2P WRITE
(Do not operate)
4
EEPROM check
Test ¢4
E2P CHECK
(Do not operate)
The backlight turns off, 1 kHz (0 dB) reference in the test
5
Reference signal level
Test ¢5
SoundTest
memory stick is played back, and the headphone output is
001
set to the reference output value (Vol. 23).
6
Frequency characteristic
Test ¢6
SoundTest
SP/20 Hz (0 dB) in the test memory stick is played back.
002
20 Hz (XP)
7
Frequency characteristic
Test ¢7
SoundTest
SP/20 kHz (0 dB) in the test memory stick is played back.
003
20 kHz (XP)
8
Frequency characteristic
Test ¢8
SoundTest
XP/20 Hz (0 dB) in the test memory stick is played back.
004
20 Hz (SP)
9
Frequency characteristic
Test ¢9
SoundTest
XP/20 kHz (0 dB) in the test memory stick is played back.
005
20 kHz (SP)
A
De-Emphasis 5 kHz (XP)
Test ¢A
SoundTest
5 kHz (–4.53 dB) emphasis off in the test memory stick is
006
played back.
B
De-Emphasis 16 kHz (XP)
Test ¢B
SoundTest
16 kHz (–9.04 dB) emphasis off in the test memory stick is
007
played back.
3-1. GENERAL INFORMATION
In this set, the functions and audio capabilities can be checked by
entering the TEST MODE.
entering the TEST MODE.
3-2. TOOLS
1. Memory stick player NW-MS7
2. Test memory stick
2. Test memory stick
Note: This test requires the memory stick for operational check.
Once created, the memory stick for test may be used for
each test.
For information on how to create this stick, see
“3-6. Creating the Memory Stick for Operational Check.”
each test.
For information on how to create this stick, see
“3-6. Creating the Memory Stick for Operational Check.”
3-3. SETTING THE TEST MODE
1. Insert the MG memory stick into the main unit.
2. While holding down the x (STOP) key and the B (PLAY)
2. While holding down the x (STOP) key and the B (PLAY)
key, push the RESET button. (Release the RESET button first.)
3-4. RELEASING THE TEST MODE
1. When the test mode is completed, push the RESET button.
SECTION 3
TEST MODE
test No. display
test item display
3-5. OPERATIONS IN THE TEST MODE
Once the Test Mode is entered from the normal mode, the system
will present the displays below.
will present the displays below.
The system will proceed to the next step each time the x (STOP)
key is pressed.
key is pressed.
BASSwa31SHUFu
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