Removing And Reinstalling The Plug-In Boards; Dcp Board Assembly - Sony HDW-750 Maintenance Manual

1-7. Removing and Reinstalling the Plug-in Boards

1-7. Removing and Reinstalling the
Plug-in Boards
When removing and reinstalling the plug-in boards, be
very careful not to damage the parts on the printed board
and also not to install them in the wrong direction or in the
wrong slot.

1-7-1. DCP Board Assembly

Removal
1. Open the inside panel assembly.
(Refer to Section 1-5.)
2. Remove the harness from the coating lead pin, then
disconnect the harnesses from the connectors (CN3
and CN4) of the DCP-28 board.
3. Disconnect the flexible card wire from the connector
(CN105) of the DCP-28 board.
m
. Life of flexible card wire will be significantly
shortened if it is folded. Be very careful not to fold
the flexible card wire.
. If the copper plating of the base material exposes
due to wear of the tin plated contact of the
connector, replace it with the new flexible card wire.
4. Remove the coaxial cable from the connector (CN1)
when the DC-110/110A board is installed.
CN3
coating lead pin
CN4
CN105
1-14
DCP-28 board
DC-110/110A board
CN1
Coaxial cable
(BLK)
Harnesses
5. Remove the screw, open the board lever in the direc-
tion of arrow A and remove the board-to-board
connector that is connected to the MB-898 board.
6. Raise the DCP board assembly in the direction of
arrow B by about 15 mm and align the projection of
the board holder (F) with the recess of the DCP-28
board.
Board lever
B
A
Projection of
the board
holder (F)
Recess of
the DVP board
assembly
7. Slant the DCP board assembly to the front and remove
it.
Board lever
DCP board
assembly
A
Board-to-board
connectors
Geared
small screw
P2 x 4
MB-898 board
DCP board
assembly
HDW-750/750CE V1