DSC-TF1 - Sony Digital Camera Service Manual (repair manual). Page 9

DSC-TF1

1-6

Opening/closing the battery/memory card cover or multi-connector cover may lead to degradation of the sealing gasket. We recommend that once 
a year you take the camera to your dealer, or to an authorized repair shop, to have the sealing gasket replaced for a fee.

Instruction manual recommends the periodic maintenance as shown above.
If there is the request for check, perform the procedure below.

Checking Items
•  Confirm that there is no air-leak.
•  Confirm that there is no strain on the exterior.
•  Confirm that there is not any dust on the BT door.
•  Replace the BT door rubber.

1.  Remove the two fixed screws of BT Door Rubber.

Screws

2.  Remove the packing, and confirm that there is no scratch such as defect on the BT Cover or ML Packing Fixed Plate.

Screws

BT Door Rubber

3.  Install the new BT Door Rubber. (also use the new screws)

Note: Be careful that there is no dust on the packing.

6.  Write the indicated value, leave for 3 minute, and check the pressure changes value is satisfied the following value by comparing between written 

indicated value and indicated value.

 

Specification value  0.30 kPa or less: OK

 

 

0.31 kPa or more: NG

Caution: Do not open the connector cover and the battery/memory card cover for two minutes after the leak test.

 

120 sec

180 sec

Measurement

Measure this changed value.

Three minutes

 later, it is OK

if the value within 0.30 kPa.

Measure between -0.0 to -10.0

-40.0 kPa

0 kPa

-45.0 kPa

-50.0 kPa

-0.0 kPa

FFF

-5.0 kPa

-10.0 kPa

Perform by following procedure
1.   Confirm that there are not any dust on the BT door.
 

          ↓

 

Confirm that there is not any dust on the vacuum pad.

 

          ↓

 

Cover the microphone hole so as not to damage the Microphone Sheet.

 

(Cover the microphone hole with silicon sheet for radiation(4-174-010-02 etc.) )

 

          ↓

 

Expand the suction time for 60 seconds, and perform the measurement again.

2.  Check the cabinet condition, and then perform the measurement again.
3.  If there is no improvement symptom, replace the front cover assy and the rear cover assy, and perform the measurement again

The changed portions from
Ver. 1.0 are shown in blue.