Replacing The Board; Cn-3058 Board - Sony LMT-300 Service Manual

3-5. Replacing the Board

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When replacing the board, stop reproduction and turn off the power switches A and B. Then, unplug the
power cord from the AC inlet and wait for about 30 seconds until the HDD operation completely stops.

3-5-1. CN-3058 Board

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The CN-3058 board is installed in the fan case assembly.
Replacement part
Part name: CN-3058 board
Part number: A-1359-022-A
Replacement procedure
1. Remove the fan case assembly. (Refer to step 1 in Section 3-4-2.)
2. Disconnect the harnesses from the connectors (CN12
and CN13) on the CN-3058 board.
3. Remove the four screws, then remove the CN-3058
board.
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For details of replacing the backup battery, refer to
Section 3-4-3.
4. To install, reverse the removal procedure.
3-18 (E)
PSW3 x 6
CN12
CN13
CN-3058 board
LMT-300