Pioneer XW-NAV1-K Service Manual page 43

5
QQ
3 7 63 1515 0
4 Remove the Up-Date Disc.
5 CHECK FOR THE FIRMWARE VERSION.
Press the ESC then the CHAP key on the Service remote control unit.
Firmware version will be displayed on the screen.
When the changed version displays, the Re-write will be completed.
How to interpret the version code:
ROM NUMBER
Subcon VERSION
EEPROM VERSION
REG CHK
SUM CHK
FL VERSION
CHIP VERSION
CODE SUM CHK
6 Turn off the power.
TE
L 13942296513
4. Troubleshooting
1 If updating of the firmware failed
If the main unit was turned off during updating, it cannot initialize and start up again properly. In such a case, replace the
flash ROM on the MAIN Assy.
If the main unit is turned off during updating of the SUB U-CON, that updating will fail.
Upon the next startup, only updating of the SUB U-CON will become possible. Perform updating of the SUB U-CON
software again.
2 If updating of the firmware using the disc for updating failed
• Was the disc for updating recognized properly?
Check if the volume label of the disc is PIONEER.
If the software files for the MPEG IC and for the SUB U-CON are on the disc, updating of only the MPEG IC will be
performed.
Copy the necessary software files to separate discs.
• Is playback of a disc other than the disc for updating possible?
If playback of a test CD is also impossible, a reading section, such as PU, may be defective. In such a case, repair the
defective part first.
If playback of a test CD is possible, the disc for updating may be defective. Check for any scratches or foreign matter,
such as fingerprints, on the reading surface.
If no problem is found with the disc, create a new disc for updating again.
www
.
5
http://www.xiaoyu163.com
6
AREA: WY REGION: 2
YMA0420B
DB01T04241
M2M702AM00
00
0ED8
1.16
1389DE
OK!
x ao u163
y
i
6
http://www.xiaoyu163.com
7
2 9
8
Y M A 0 4 2 0 B
D B 0 1 T 0 4 2 4 1
Released times on the same day
Release date
Release month
X = October
Y = November
Z = December
Release year (One column of bottom)
Fixed
Q Q
3 6 7 1 3 1 5
co
.
XW-NAV1-K
7
8
9 4 2 8
0 5 8 2 9 9 4 2 8
m
8
9 9
A
B
C
9 9
D
E
F
43