1-18 (No.MB531)
3.1.9 Removing the amplifier 1 and amplifier 2 boards
(See Fig.16 to 18) [For DX-T99]
• Remove the metal cover, tuner, fan, rear panel and main
board.
(1) From the right side of the main body, remove the screw
N
attaching the earth wires to the bottom chassis. (See
Fig.16)
Reference:
After reassembling, fix the earth wires with the spacer as
before. (See Fig.16)
(2) Disconnect the amplifier 2 board from the bridge board in
the direction of the arrow while releasing the claw
k
of the
connector
CN200
on the bridge board. (See Fig.16)
(3) Disconnect the amplifier 1 board from the bridge board in
the direction of the arrow while releasing the claw
k
of the
connector
CN201
on the bridge board. (See Fig.17)
Note:
When releasing the claws (
k
,
l
), take care not to break
them. (See Fig.17, 18)
(4) Take out the amplifier 1 board and amplifier 2 board togeth-
er from the main body.
(5) Remove the two screws
P
and remove the leaf spring. (See
Fig.18)
(6) Remove the two screws
P
and remove the amplifier 1
board from the heat sink. (See Fig.18)
(7) Remove the four screws
P
and remove the amplifier 2
board from the heat sink. (See Fig.18)
3.1.10 Removing the amplifier 1 and amplifier 2 boards
(See Fig.16 to 18) [For DX-T77, DX-T66]
• Remove the metal cover, tuner, fan, rear panel and main
board.
(1) From the right side of the main body, remove the crew N
attaching the earth wires to the bottom chassis. (See
Fig.16)
Reference:
After reassembling, fix the earth wires with the spacer as
before. (See Fig.16)
(2) Disconnect the amplifier 2 board from the bridge board in
the direction of the arrow while releasing the claw
k
of the
connector
CN200
on the bridge board. (See Fig.16)
(3) Disconnect the amplifier 1 board from the bridge board in
the direction of the arrow while releasing the claw
l
of the
connector
CN201
on the bridge board. (See Fig.17)
Note:
When releasing the claws (
k
,
l
), take care not to break
them. (See Fig.16, 17)
(4) Take out the amplifier 1 board and amplifier 2 board togeth-
er from the main board.
(5) Remove the two screws
P
and remove the leaf spring. (See
Fig.18)
(6) Remove the two screws
P
and remove the amplifier 1
board from the heat sink. (See Fig. 18)
[For DX-T77]
(7) Remove the three screws
P
and remove the amplifier 2
board from the heat sink. (See Fig.18)
Fig.16
Fig.17
Bridge board
Amplifier 2 board
N
Bottom chassis
Earth wires
Spacer
CN200
k
Bridge board
Amplifier 1 board
Bridge board
CN201
Bridge board
l
