Step 4: Attaching The Option Panel To The Main Unit - Sony PDBK-A640 Installation Instructions Manual

Step 4: Attaching the Option Panel to the Main Unit

26 Installation
1
Pass the harness connected to the HP-130 board and the flat cable
through the respective openings into the main unit then fit the three
projections at the bottom of the option panel into the respective
holes on the main unit.
Flat cable: Pass it through the upper opening.
Harness:
Pass it through the
lower opening.
Insert the projection through the upper wide
area of the hole then slide it downward to fit
the narrow block.