Panasonic SA-HT340GC Service Manual page 37

Step 4 Spread the tabs at the both sides and pull the tray out.
(The tray slides a little forword and stops.).
Step 5 Remove the drive arm concave phase from the tray
slider and tray.
l(Assembling the tray unit)
Step 1 Insert a part of the tray into the unit sliding over the
groove on the mechanical chassis unit.
Step 2 Insert the tray to the point before the tab of the
mechanical chassis unit.
Step 3 Hook the drive arm concave phase over the tray and
the tray slider.
Step 4 Press in the tray.
Step 5 Make sure that the tray and the drive arm move
smoothly.
11.1.3. Disassembly of Loading section
Step 1 Spread the tabs at the both sides and push out the drive
arm shaft.
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SA-HT340GC / SA-HT340GCS / SA-HT340GS