Panasonic SA-HT740P Service Manual page 15

Step 17 : Push and hold the Close Lock Gear and then push
the Tray Assembly as arrows shown.
Step 18 : Ensure the Tray Lid Assembly is properly located and
fully catched.
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC
Step 19 : Push and hold the Open Loack Gear and then push
the Tray Assembly as arrows shown.
Step 20 : Fix the Top Cabinet as shown.
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