Sony KD-43X7 G Series Service Manual page 58

2.6.13 CI Slot
2.6.13 CI Slot – Cannot Play / No picture / No Sound – Checking Point
CI Slot (B-board Checking) – Checking CI Detection Pin Points [2/3]
Board
Name
BB9
Board PWB (A side)
Card Detect 2 – PIN 67
Remark:
Both CI Detection Pin should be 3.3V before CICAM insert and 0v when CICAM inserted.
Detail
Card Detect 1 – PIN 36
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SYS SET