Separation Of Upper Case Unit And Lower Case Unit - Yamaha TYROS4 Service Manual

Tyros4
1. Separation of Upper Case Unit and
Lower Case Unit
(The required: About 5 minutes).
1-1 Remove the four (4) screws marked [S12] and
seventeen (17) screws marked [S14A], lift the rear side
of the upper case unit a little, pull it toward you a little
paying attention not to damage connector assemblies,
and lift the upper case unit carefully. (Fig. 1, Photo 1)
1-2 Remove the five (5) screws marked [S03A] and the
screw marked [S11A]. The ACDM earth angle can then
be removed. (Fig. 2)
1-3 Remove the ten (10) screws marked [S01A] and
the screw marked [S09]. The DM cover can then be
removed. (Fig. 2)
1-4 Disconnect all the connector assemblies connecting the
upper case unit and lower case unit. The upper case unit
and lower case unit can then be separated.
• Bottom View
[S14A]
• Top View
AC UPPER FRAME ASSEMBLY
LOWER CASE UNIT
[S03D]
12
[S12] [S14A]
LOWER CASE UNIT
DIMM COVER
[S14A]
Fig. 1
ACDM EARTH ANGLE
[S11A] [S03A] [S03A]
Fig. 2
③
②
Photo 1
[S12] [S14A]
[S02A]
[S02A]
[S14A]
DM COVER
[S09] [S01A]
[S01A]
UPPER CASE UNIT
①
HDD ASSEMBLY
[S14A]
[S02C]
[S14A]