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6.Remove
fireproof electric box and
soundproof sponge
Twist off the screws on fireproof electric box and then
remove the fireproof electric box.
Fireproof
electric box
Since the piping ports on the soundproof sponge are
torn easily, remove the soundproof sponge carefully.
soundproof sponge
7. Remove isolation sheet
Remove the 3 screws fixing the isolationsheet
and then remove the Isolation sheet.
isolation sheet