MPK-DVF6 - Sony Movie Service Manual (repair manual). Page 8

MPK-DVF6

Remove the camera mounting shoe with the screw driver.

Undo the screw of the screw plate and remove the camera mounting shoe from the
camcorder.

Remove the batteries from the LCD monitor battery compartment.

Insert the A/V connecting cable plug to
the plug holder of the camera mounting
shoe B.

B

• An O-ring is part of the water-proof packing that is used on underwater cameras,

watches, and other diving equipments.

• The O-ring acts to preserve the waterproof qualities of the marine pack and other

equipments.

The surface of the O-ring contacts the rubber to prevent water from entering the gap.

When water pressure acts on the O-ring, the contact surface area of the
O-ring expands to increase the force acting on the groove on the marine pack.

O-ring

water

water
pressure

O-ring

Avoid setting the O-ring in dusty or sandy locations.

Remove the O-ring.
Do not use pointed or metal objects to remove the O-ring. These objects might
scratch or damage the marine pack groove or O-ring.

Inspect the O-ring.
•Fully check the following, and wipe off with a soft cloth or tissue paper.

– Check for any dirt, grains of sand, hair, dust, salt, thread scraps, etc.
– Check for any old grease.

•Lightly run your fingertip around the O-ring to check for any unapparent

dirt.

•After wiping the O-ring, take care to prevent any cloth or tissue paper fibres

from remaining on the O-ring.

•Check the O-ring for cracking, skew, distortion, fine splitting, scratches,

sand-biting, etc. Replace cracked or scratched O-rings.

Inspect the O-ring groove.

Grains of sand or hardened salt sometimes get into the groove. Carefully remove
them by blowing with an air spray or by wiping them with a cotton wool bud.
Prevent fibre scraps from the cotton wool bud from entering inside.

Also, inspect the contacting surface on the other side of the O-ring in the same
way.

v Dirt

v Sand

v Hair

v Dust

v Salt

v Thread scraps

v Cracking

v Skew

v Distortion

v Fine

Splitting

v Scratches

v Sand-biting

Apply a coating of grease to the O-ring.

•Apply a small drop of grease onto the O-ring and evenly coat the entire surface of

the O-ring with the end of your finger.

•Do not use paper or cloth as fibre may stick to the O-ring.
•Make sure that a thin coating of grease is applied to the surface of the O-ring at all

times. Grease protects the O-ring, and prevents wear.

•After you have applied a small drop of grease onto the O-ring, set the O-ring

immediately. Do not leave the greased O-ring on a desk or other surfaces.

Place the O-ring in the groove on the marine pack.

Place the O-ring evenly in its groove paying attention to the following points:
– Is there any dirt on the O-ring?
– Is the O-ring twisted?
– Do not pull the O-ring.
– Is the O-ring protruding?

After you have fitted in the O-ring, check it again for the following:
– Is the O-ring twisted?
– Is there any dirt on the O-ring?
– Is the O-ring protruding?
– Are there any cracking or distortion on the O-ring?

After you have replaced the O-ring, close the marine pack before you insert the
equipment you are using. Immerse the marine pack for about three minutes in water to
a depth of about 15 cm, and check for water leaks.

PCAUTION
When you have taken photos on a sandy sea bottom or have placed the camera on the
sand, remove the O-ring and check for water leaks.

Bad example

Good example