Service Mode - JVC KD-NX901 Service Manual

Hdd navigation / dvd receiver
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4.5

Service mode

Note
The new HDD of factory shipments is blank.
When exchanging new HDD at repair,
it needs copy of data from the master HDD by the HDD copy machine.
Setup to the service mode
Turn on the power.
Select to the [TUNER] source.
Press the key [SEL] [POWER] [SOURCE] over the two seconds.
MENU
1.Sensor Check
2.Initial All
3.GPS Init Check
Service Mode
*Change the menu items rotate control dial.
*Select the mode push the [1] to [6] key.
*The [DISP/BACK] key is return of item.
1-28 (No.MA161)
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4.Tuner Adjustment
1.Version Check
5.DVD Mecha Init
2.Firmware Update 5.Running Mode
6.GYRO Adjustment
3.Data Read
Service Mode
Sensor Check
Spd pls
: **
Gyro
:**** . **
GPS
: ********/********
Prk SW : 01 ON
Rvs SW : 00 F
Sensor DATA
Initial All
Initialize factory setup data.
Tuner preset
User entry name
Error log
Note: After initialized should push the [RESET] key,
Note: After initialized should push the [RESET] key,
or should pull out a power code 30 seconds or more, and should surely reset a main unit.
or should pull out a power code 30 seconds or more, and should surely reset a main unit.
GPS Init Check
Only the factory setup.
No use.
Tuner Adjustment
Only the factory setup.
No use.
DVD Mecha Init
Only the factory setup.
No use.
GYRO Adjustment
Only the factory setup.
No use.
Version Check
Main Ver :X. XXX YY
FP Ver :X XXX YY
Navi Ver :XXX
DVD Ver :XXXX
DB Ver :EuropeX. X. X. X
Version Check
Firmware Update
Rewriting the firmware of the navigation microcomputer. Procedure is the following.
1) Making of SD card for Update.
(SD card writer is connected with a personal computer, and software is copied.)
(1) SD card prepares 32 M bytes or more.
(2) Select the [FAT] file system. Format option is standard. Quick format is not chosen.
(3) Copy the firmware file to the route directory.
2)Updating
(1) Insert the updated SD card.
(2) Select the [Firmware Update] from service mode.
(3) Press the [OK] key after [Firmware Update Start OK ? ] displayed.
(4) Flashing display the [Firmware Update Now Updating] in updating. It take about five minutes.
Note: Do not turn off the power. The unit will not restart.
Note: Do not turn off the power. The unit will not restart.
(5) Power supply is shut off and supply again, it is automatically after update.
(6) Extract the SD card.
Form updating from the DVD-R/RW of the navigation microcomputer.
1) Making of the update disk.
(1) Preparing of the DVD-R or DBD-RW.
Note: Do not use CD-R,CD-RW,DVD+R,DVD+RW.
(2) Make the [JVCDBUpdate] name folder.
Make the [FWUpdate] name folder in the [JVCDBUpdate] .
(3) Move to the two provide data fail to [FWUpdate] folder.
(4) Disk writing by the [Disk at once].
2)Update
(1) Loading to updated disk.
(2) Press the [OK] key after [Firmware Update Start OK ? ] displayed.
(3) Flashing display the [Firmware Update Now Updating] in updating. It take about five minutes.
Note: Do not turn off the power. The unit will not restart.
Note: Do not turn off the power. The unit will not restart.
(4) Power supply is shut off and supply again, it is automatically after update.
(5) Eject the disk after the [Please Eject] displayed.
A
manuals search engine
SEL
POWER
4.Data Clear
1.DVD Area/Region 4.TMC Check Mode
2.DVD Check Mode 5.Self Check
6.HDD Format
3.DVD NTSC/PAL
Service Mode
Indicate the sensors information
Spd pls: Speed pulse value
For example, if 100Hz rectangle wave signal inputted from an oscillator,
it will become the display of [A0] etc.
Gyro : Output value from inside gyro
If a main unit is turned to right or left, a value will change.
GPS : Latitude and longitude value from GPS antenna.
Only of navigable area.
Prk SW: Detect the parking brake
01:ON
00:OFF
Rvs SW: Detect the reverse
01: BACK
00:FORWARD
Version of main microcomputer and ROM correction.
Version of panel microcomputer and ROM correction.
Version of navigation microcomputer.
Version of DVD unit.
Version of map database.
SOURCE
CONTROL DIAL/OK
6.Full Clear

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