Replacement Of Dc Fan; Replacement Of Board; Main Board - Sony PFV-SP3300 Maintenance Manual

1-5-2. Replacement of DC Fan

1. Remove the fan assembly. (Refer to Section 1-5-1.)
2. Remove the two screws each, then remove the fan
bracket and board bracket.
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The DC fan and board bracket are connected using a
harness. Remove the board bracket slowly from the
DC fan.
3. Disconnect the connector of the harness from the CN-
2122 board.
DC fan
Board bracket
M 4x45
Harness
CN-2122 board
4. Install a new DC fan in the reverse order of steps 1 to 3.
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Be careful not to interpose the harness when installing the
board bracket.
PFV-SP3300
M 4x45
Fan bracket

1-6. Replacement of Board

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Before starting the replacement, be sure to turn off the
power of both power supply units and pull out the power
plugs from the wall outlets.

1-6-1. Main Board

1. Remove the front panel. (Refer to Section 1-1.)
2. Remove the four screws, then remove the board
retainer.
Power switches
B 3x5
Board retainer
B 3x5
3. Turn the board lever in the direction of the arrow 1,
then pull out the board toward you.
1
Board lever
1-5. Replacement of Fan
1-6. Replacement of Board
1-5 (E)