Apple iMac (17-inch Mid 2006) - Manual (Page 56)

iMac (17-inch Mid 2006/Late 2006 CD) Take Apart — LVDS Cable 
LVDS Display Cable
Tools
No tools are required to remove the LVDS (Low Voltage Differential Signaling) cable.
Preliminary Steps
Before you begin, follow steps for removing the following:
Access door
Front bezel
Lower EMI shield
LCD Display
Part Location
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