9
AVIC-W8400NEX/XNUC
5
6
7
8
5
6
7
8
A
B
C
D
E
F
3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
To keep the product quality after servicing, please confirm following check points.
For check items concerning voice, please refer to the followings:
No.
Item to be confirmed
Procedures
1
The customer complain must not be reappeared.
Display, video, audio and operations must be normal.
Confirm whether the customer complain has been
solved.
If the customer complain occurs with the specific
media, use it for the operation check.
2
The flap mechanism operation must be smooth without
making the noise and scratches.
Check the operation of the flap mechanism.
Flap-mecha
3
Deterioration of mecha-drive can be checked.
The error rate must be less than the threshold value.
(Refer to the chapter of DIAGNOSIS for the
threshold value.)
Measure playback error rates at the innermost and
outermost tracks by using the test mode with the
following disc.
DVD Test Disc (TDV-582)
DVD
4
Display, video, audio and operations must be normal.
Play back a DVD.
(Menu operation; Title/chapter search)
DVD
5
Display, audio and operations must be normal.
Play back a CD.
(Track search)
CD
6
Display, audio and operations must be normal.
Check FM/AM Tuner action.
(Seek, Preset)
Switch band to check both FM and AM.
FM/AM Tuner
7
Display, video, audio and operations must be normal.
Check USB-memory action.
(Seek, Preset)
USB
8
Current location must be correct.
Display and operations must be normal.
Connect GPS antenna to the product, and check
whether the current location is correct.
GPS positioning
9
Gyro-sensing, display and operations must be normal.
On "3D Calibration Status", check whether the Gyro
Sensor works well by moving the front face of the
product from left to right and up and down.
Gyro action
10
Display and operations must be normal.
Check functions of map scale change and map scroll.
Map display
Touch-panel
operation
11
Make sure to delete data added during the operating
check.
The media used for the operating check must be ejected.
Delete data added during the operating check.
Check whether no media (CD etc.) is inside the
product.
12
No scratches or dirt on its appearance after receiving it
for service.
Appearance check.
Check items concerning image
Block-noise
Crosscut noise
Dot noise
Distorted image (Image skip)
Low brightness
Too bright
Item to be checked regarding audio
Distortion
Noise
Low volume
High volume
Changes in level
Pause of sound
Color fading
Partial discoloration
