JVC KD-G311 Service Manual page 12

3.2.3 Removing the DET switch
(See Figs.6 and 7)
(1) Extend the two tabs c of the feed sw. holder and pull out
the switch.
(2) Unsolder the DET switch wire if necessary.
1-12 (No.MA134)
Connector
board
Fig.6
DET switch
Tab c
Fig.7
DET switch
Pickup
Tab c
DET switch wire
Feed sw. holder