NEC N8, Service Manual

Page: 89 / 182

NEC Confidential & Proprietary
MMI Tests
Operate key according to direct message on screen.
During the test, the test operator has to validate (Pass key) or not (NG key) each
function tested. Each test result is written in the non-volatile memory.
Test item Detail
LED Test Verify the 7-color LED emblem ( RED, GREEN, BLUE )
Vibrator Verify vibrator ON/OFF
Screen Display Test
(65,000 colour
LCD)
Backlight (High, Low, very Low, OFF), LCD Display (check all elements are
ON), Contrast test (Verify menu UP to increase contrast, menu DOWN to
decrease contrast)
Camera Test Verify the image on main display, Zoom function and image on back
display
IrDA Test Verify connection of IrDA
Open/Close check Verify display and backlight ON/OFF (check hall IC)
Keyboard Test When the key is pressed, check whether the corresponding numbers/sign
is disappeared
Speaker Test Verify volume UP/DOWN
AUDIO Test Verify whether input voice from microphone can be heard from receiver
SHF Test Verify detection of a SHF jack and switch of SHF and AUDIO loop back
operation
Operation :
Start test mode :
PC Link test
After connecting a PC Link cable, check AT commands established
USB Test
After connecting a USB cable, check USB connection established.
Close Down
When all tests are finished, power down the phone by holding the POWER key
down manually.
Normal mode
*#*#170
Test SIM?
Test mode
Yes
Yes
No
No
Shift to test mode when Test SIM
is inserted