Sony HDC-P31 - Section 4 Replacement of Main Parts; 4-1. Precautions before Work; 4-1-1. Tightening Torque

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2-2. Cleaning the Air Vents
Clogging of dust or foreign matters may cause a temperature increase inside the camera, which may result in a failure.
Clean the air vents every two or three months.
Procedure
1. Remove dust on the five air vent areas with a vacuum cleaner.
The illustration shows an HDC-P50.
Air vent
Air vent
Air vent
Air vent
Air vent