Read Sony DSC-TX30 (serv.man2) Service Manual online
DSC-TX30_L2
1-7
– ENGLISH –
1-4-2. Inspection Procedure (Hand Pump Type)
1-4-2-1. Measuring Reference Values of the Tester
Before starting the air leak test, check reference values of the hand pump type air leak tester.
Checking procedure
Conduct the air leak test with the air leak tester placed on a flat plate (such as a glass plate on the table).
Conduct the air leak test with the air leak tester placed on a flat plate (such as a glass plate on the table).
1. Turn on the air-leak tester.
2. Check that no dust is present on the vacuum pad and the flat plate (such as a glass plate on the table), and push the vacuum pad perpendicularly
2. Check that no dust is present on the vacuum pad and the flat plate (such as a glass plate on the table), and push the vacuum pad perpendicularly
against the flat plate to stick the vacuum pad.
Glass plate
OK
Tilt
NG
Air leak
Caution :
Keep vacuum pad vertically by touching with finger.
Do not keep pressing it to the glass plate.
Do not keep pressing it to the glass plate.
Do not touch the tube during the measurement, or measurement
value may be changed.
value may be changed.
Perform the measurement under no vibration.
It may cause the air-leak under the condition with vibration.
It may cause the air-leak under the condition with vibration.
3. Press the hand pump slightly so that the indicated pressure value becomes to “-5.0”.
Few seconds later, decrease the pressure slightly. Therefore adjust the indicated pressure by pressing the hand pump.
Note: Perform the pressure adjustment by hand pump pushing amount.
If the pressure becomes too high, perform the adjustment again after removing the vacuum pad.
If the pressure becomes too high, perform the adjustment again after removing the vacuum pad.
4. The change value is getting settle, wait 60 seconds with keeping the pressure at around the -5.0 kPa (within -0.0 kPa to -10.0 kPa), and record the
indicated value (A).
Caution: Do not operate the hand pump after settling the change value.
If operate the hand pump again, wait 60 seconds form then.
5. Leave the air leak tester for another 60 seconds, and record the indicated value (B).
-40.0kPa
0kPa
60sec
60sec
-45.0kPa
-50.0kPa
-0.0kPa
FFF
-5.0kPa
-10.0kPa
Vacuum by hand pump
Stop hand pump
Measure between -0.0 to -10.0
Air
pressure
pressure
Indicated
value
value
Measurement
(A)
(B)
Measure this amount of change.
Displayed values at measurement
points (A) and (B) are entered in
"
Displayed values at measurement
points (A) and (B) are entered in
"
AirLeak_CheckTool.exe
"
to determine them.
1-4-2-2. Measuring the Unit
1. Turn on the air-leak tester.
2. Stick two radiation sheets B (4-174-010-01) to the two microphone seats.
2. Stick two radiation sheets B (4-174-010-01) to the two microphone seats.
Radiation sheets B
Microphone seats
3. Check that no dust is present on the vacuum pad and the speaker seat of the unit, and push the vacuum pad perpendicularly against the center of
the speaker seat to stick the vacuum pad.
Radiation sheets B
Speaker seat
OK
Tilt
NG
Air leak
Caution :
Keep vacuum pad vertically by touching with finger.
Do not keep pressing it to the camera.
Do not keep pressing it to the camera.
Do not touch the tube during the measurement, or measurement
value may be changed.
value may be changed.
Perform the measurement under no vibration.
It may cause the air-leak under the condition with vibration.
It may cause the air-leak under the condition with vibration.
Test hole
The changed portions from
Ver. 1.0 are shown in blue.
Ver. 1.0 are shown in blue.
Ver. 1.1 2013.05
Click on the first or last page to see other DSC-TX30 (serv.man2) service manuals if exist.