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(No.MB230)1-13
3.1.10 Removing the power amplifier board (See Fig.19)
• Prior to performing the following procedures, remove the side
panels L/R, top cover assembly, rear cover, tuner, video output
board, main board and power supply board.
(1) From the top side of the main body, disconnect the card
wire from the connector
CN303
on the power amplifier
board.
(2) Remove the tie bands and wire holder bundling the wires.
(3) Remove the four screws
Q
attaching the power amplifier
board on the shield chassis.
Reference:
• When attaching the power amplifier board on the shield
chassis, align the projections
g
of the shield case in the slots
of the power amplifier board before attaching the power am-
plifier board with the screws
Q
.
• After attaching the power amplifier board, insert the wires in
the slot
h
and bundle the wires with the new tie bands and
wire clamp as before.
Fig.19
3.1.11 Removing the heat sink (See Figs.20 and 21)
• Prior to performing the following procedures, remove the side
panels L/R, top cover assembly, rear cover, tuner, video output
board, main board, power supply board and power amplifier
board.
(1) From the reverse side of the power amplifier board, bend
the claws
i
in the direction of the arrow. (See Fig.20)
(2) From the forward side of the power amplifier board, remove
the four screws
R
attaching the heat sink to the bracket.
(See Fig.21)
(3) Release the joints
j
and remove the heat sink in the direc-
tion of the arrow. (See Fig.21)
Fig.20
Fig.21
Tie bands
CN303
Projection
g
Shield chassis
Q
Q
Q
Wire
Wire clamp
Wires
Projection
g
Slot
h
Power amplifier board
Claws
i
Power amplifier board
Joint
j
Joints
j
Heat sink
Bracket
Power amplifier board
R
Содержание UX-S77
Страница 39: ... No MB230 1 39 SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING ...
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