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6.
Remove the three SW caps, three toggle drop protections, two boron sheets (MIC SW), and the two return SEL
packings.
Flexible flat cable (15 core)
PSW2 x 5
PSW2 x 5
DC line protection sheet
Notes
• When installing the return select knob and VR knob, apply locking compound to the inside of the knobs.
• When installing the return select knob, set the marks of the switch and the return select knob on the SW-1530
board to the positions shown in the figure.
• When installing the return SEL packing, stick the adhesive surface to the board side.
7.
Install the removed parts by reversing the steps of removal.
HDC4300
Position of switches and return select knobs
Switch
CN1
SW-1530 board
Boron sheets
(MIC SW)
Toggle drop
protection
5
Toggle drop protections
SW caps
Return SEL packings
SW caps
Adhesive surface
2
3
1
4
Return select
knobs
Return select knobs
VR knobs
4-54
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