Panasonic SC-HC37GN Service Manual page 38

Step 3 : Connect 5P wire at the connector (CN501) on the iPod
P.C.B..
Caution : During assembling, dressed the 5P wire into the
ribs of the Front Panel Block.
Step 4 : Gently push the Slide Guide Pin upwards. A "click"
sound is heard when the Slide Guide Pin is fully catched.
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