Sony BKMA-U70XGI, Manual

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2-1 (E)
BKMA-U70XGI
Section 2
Installing the Circuit Board and Parts
2-1. Installing the SY-253A Board and
the PU-102A Board
General Information for Installation
Shut down the system and turn off the main power of the
MAV-70. Wait for one minute or longer before starting the
installation as described below.
Installation
1. Turn off the POWER switches A and B of the MAV-
70.
2. Remove the four screws of the slot No. 7 and remove
the SY-253 board.
3. Remove the two or five screws, and remove the CCM-
37 board or the BKMA-7070 (CCM-38 board).
BVTT3
x
6
BVTT3
x
6
BVTT3 x 6
SY-253 board
MAV-70
Board lever Board lever
1
1
PSW3
x
6
CCM-37 board
SY-253 board
PSW3
x
6
PSW3
x
6
CCM-38 board
SY-253 board
.....
Removing the BKMA-7070 (CCM-38 board)
.....
Removing the CCM-37 board