Sperry Marine 4914-CA, Operation, Installation And Service Manual

Page: 139 / 192

k^sfd^q u jh N MRSPQPLc
bñÅÜ~åÖáåÖ=íÜÉ=póëíÉã=pçÑíï~êÉ NMJN
`Ü~éíÉê=NMW `çêêÉÅíáîÉ=j~áåíÉå~åÅÉ
The NAVIGAT X MK 1 is generally not field-serviceable on the compo-
nent level. In case of malfunction, complete sub-assemblies must be
exchanged and the defective sub-assemblies returned to Sperry Marine.
Singular electronic components which may be exchanged by field serv-
ice personnel are the system software IC and the other socketed ICs on
the NAVIGAT X MK 1 master board.
NMKN bñÅÜ~åÖáåÖ=íÜÉ=póëíÉã=pçÑíï~êÉ
The NAVIGAT X MK 1 system software is contained on a flash-memory
chip, IC 34, on the master PCB. By exchanging the software IC, the sys-
tem can easily become upgraded to a newer or downgraded to a previ-
ous software release, if required.
a^kdbo
iáÑÉ=Ç~åÖÉê=íÜêçìÖÜ=ÉäÉÅíêáÅ~ä=ëÜçÅâ
tÜÉå=íÜÉ=^`=ã~áå=ëìééäó=áë=ëïáíÅÜÉÇ=çåI=äáîÉ=îçäí~ÖÉë=~êÉ=éêÉëÉåí=~í=íÜÉ=
äáåÉ=ÑáäíÉê=~åÇ=íÜÉ=éçïÉê=íê~åëÑçêãÉêÛë=íÉêãáå~äëK
tÜÉå=íÜÉ=Åçãé~ëë=áë=ÉåÉêÖáòÉÇ=Eã~áå=~åÇLçê=Ä~Åâìé=ëìééäó=éêÉëÉåíFI=
íÜÉ=ÖóêçëéÜÉêÉ=çéÉê~íáåÖ=îçäí~ÖÉ=çÑ=NMM=s^`=]=PPT=eò=áë=éêÉëÉåí=çå=íÜÉ=
ã~ëíÉê=m`_I=íÜÉ=ÖóêçëéÜÉêÉ=ëìééäó=äáåÉë=~åÇ=~Åêçëë=íÜÉ=ÖóêçëéÜÉêÉ=ÅçåJ
í~ÅíëK
j~âÉ=ëìêÉ=íÜÉ=Åçãé~ëëD=ã~áå=~åÇ=Ä~Åâìé=éçïÉê=ëìééäáÉë=~êÉ=~äï~óë=
ëïáíÅÜÉÇ=çÑÑ=~åÇ=ë~ÑÉÖì~êÇÉÇ=~Ö~áåëí=~ÅÅáÇÉåí~ä=ëïáíÅÜáåÖJçå=ïÜÉå=
ÉñÅÜ~åÖáåÖ=ÅçãéçåÉåíë=çå=íÜÉ=ã~ëíÉê=Äç~êÇI
`^rqflk Risk of damage of electrostatic-discharge-sensitive components
The NAVIGAT X MK 1 contains electrostatic sensitive components.
Electrostatic discharge may permanently damage components.
When servicing the NAVIGAT X MK 1, take considerable precautions to
prevent electrostatic discharge. Avoid touching any of the electronic cir-
cuitry.
`^rqflk
Risk of loss of parameter settings through software exchange
It cannot be guaranteed that parameter settings in the User and Setup
menus and the entries made in the Magnetic Compass Calibration table
are left intact when the software is exchanged.
Before exchanging the system software IC, record all parameter settings
to be able to re-enter them manually, if required.
kçíÉ
The stock number of the pre-programmed software IC, 26562, remains
identical through all software releases. The IC’s revision identifier indi-
cates which software release it has been programmed with. Unless
specified otherwise upon ordering, Sperry Marine will deliver the IC pre-
programmed with the latest official software release.