Sony PCV-RX640 Service Manual page 16

(DDR)
2 memory (DDR) × 2
Note 1: In opening the clips,
Note 2: In removing the memories,
hold lightly the top of the memories
with your fingers to prevent a drop.
always start from the one
having largest bank number.
1 Open two clips.
1 Open two clips.
2-13
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PCV-RX6__Series (AM)