Yamaha 9000 Pro Manual de serviço - Página 11
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<Rear view>
<Bottom view>
Power Supply Assembly
[310A]
[310B]: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300)
[320]: Bind Head Tapping Screw-B 3.0X6 MFZN2Y (EP600130)
3.
DA Circuit Board
(Time required: About 15 min.)
3-1
Remove the bottom assembly. (See procedure 1.)
3-2
Remove the DA circuit board form the four (4) locking
card spacers marked [A]. (Fig. 3)
* When install the DA circuit board, check that the connector
has been firmly placed into position in the area.
4.
DM and TG Circuit Boards
(Time required: About 20 minutes)
4-1
Remove the bottom assembly. (See procedure 1.)
4-2
Remove the DA circuit board. (See procedure 3.)
4-3
Remove the two (2) screws marked [310B].
The PW-CB holder can then be removed with the
PW circuit board. (Fig. 3)
4-4
Remove the seven (7) screws marked [320C] and
the five (5) screws marked [320D]. The DM and TG
circuit boards can then removed together. (Fig. 3)
4-5
Disconnect the connectors (DM-CN7, TG-CN2) to
separate the DM and TG circuit boards.
5.
MIC/HP and MIC/VR Circuit Boards
(Time required: About 15 minutes)
5-1
Remove the bottom assembly. (See procedure 1.)
5-2
Pull out the volume knob (DIMMER) from the rear
side. (Fig. 4)
5-3
Remove the five (5) screws marked [150A]. The MIC/
HP circuit board can then be removed. (Fig. 4)
5-4
Pull out the volume knob (INPUT VOLUME) from
the control panel side.
[310A]
[320A] x 4
[320D] x 5
AM
(Fig. 3)
[A] x 4
[320B] x 2
[310B]
PW
CN2
CN7
DA
TG
PW-CB Holder
Ferrite Core
5-5
Remove the four (4) screws marked [150B]. The MIC/
VR circuit board can then be removed. (Fig. 4)
6.
Power Supply Unit
6-1
Remove the bottom assembly. (See procedure 1.)
6-2
Remove the power supply assembly.
(See procedure 2.)
6-3
Remove the two (2) screws marked [60] and the two
(2) screws marked [85]. The power supply unit can
then be removed. (Fig. 5)
7.
INLET and LAMP-R Connector Assemblys
(Time required: About 15 minutes each)
7-1
Remove the bottom assembly. (See procedure 1.)
7-2
Remove the power supply assembly.
(See procedure 2.)
7-3
INLET Connector Assembly:
Remove the screw marked [70A] and the two (2)
screws marked [80B]. The INLET connector assembly
can then be removed from the frame. (Fig. 5)
7-4
LAMP-R Connector Assembly:
Remove the screw marked [10e] and the two (2)
screws marked [780]. The LAMP-R connector
assembly can then be removed . (Fig. 6)
[170]
SCSI
[320C] x 7
DM
(Time required: About 15 min.)
9000 Pro
11