TH-A9
Removing the preamplifier board FMain amplifier board
(See Figs.4 to 6)
Prior to performing the following procedure, remove Braket
the heat sink cover, the amplifier assembly and the
amplifier cover.
F
1. Remove the two screws F attaching the preamplifier Preamplifier
board
board to the bracket.
2. Disconnect connector CN101 on the preamplifier
board from the main amplifier board.
Power supply &
3. Pull out the switch knob.
SP terminal
board
4. Remove the nut and the two screws G attaching the
bracket.CN108
CN107
Fig.4
Removing the power supply & SP terminal
board (See Figs.4 and 5)
Prior to performing the following procedure, remove
the heat sink cover, amplifier assembly and the
amplifier cover.Preamplifier CN101
board
1. Disconnect the wire from the connectors CN107 and
CN108 on the power supply & SP terminal board.
Main amplifier
board
Power supply &
2. Unplug the connectors CN110 and CN111 on the SP terminal
boardCN111
power supply & SP terminal board from the main
amplifier board.
CN110
CN108
CN107
Fig.5
Preamplifier
board
Braket
Nut
CN101
G
G
Switch knob
Fig.6
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