Read Sony MHS-TS22 Service Manual online
MHS-TS22
1-5
1-4. AIR-LEAK TEST
1
2
Note :
Left Cover (Deco)
Claws B
Adhesive Tape
Claw A
When conducting the air-leak test, detach the Left Cover (Deco) and block the microphone hole with a
Microphone Sealing Rubber (4-429-171-01) and adhesive tape.
Microphone Sealing Rubber (4-429-171-01) and adhesive tape.
Stick the Microphone Sealing Rubber with its
glossy side facing the microphone hole.
glossy side facing the microphone hole.
Disengage Claw A (
1
), pull up the Left Cover (Deco),
and then disengage Claws B (
2
).
Microphone Sealing Rubber
Microphone hole
1-4-1. Inspection Procedure (Compressor Type)
1. Turn on the air-leak tester.
2. Hold the vacuum pad on flat surface, set the air switch to “open”, and adjust the pressure to around -5.0 by turning the pressure adjustment knob.
2. Hold the vacuum pad on flat surface, set the air switch to “open”, and adjust the pressure to around -5.0 by turning the pressure adjustment knob.
Inspection pressure:-45.0 ±3.0 kPa
3. Confirm that there is no dust on the vacuum pad and test hole, and hold the vacuum pad by pressing it vertically to the center of test hole (tripod
hole) on the camera.
OK
Tilt
NG
Test hole
Air leak
Caution :
Keep vacuum pad vertically by touching with finger.
Do not keep pressing it to the camera.
Do not touch the tube during the measurement, or measurement
Do not touch the tube during the measurement, or measurement
value may be changed.
Perform the measurement under no vibration.
Perform the measurement under no vibration.
It may cause the air-leak under the condition with vibration.
4. Wait 120 seconds with keeping the pressure at near -5.0 kPa.
5. Wait 30 seconds with setting air switch to “close”, and write the indicated value.
6. In addition, leave for 2 minutes, and check the pressure changes value is satisfied the following value by comparing between the written indicated
5. Wait 30 seconds with setting air switch to “close”, and write the indicated value.
6. In addition, leave for 2 minutes, and check the pressure changes value is satisfied the following value by comparing between the written indicated
value and indicated value.
Specification value 0.45 kPa or less: OK
0.46 kPa or more: NG
Caution: Do not open the connector cover for two minutes after the leak test.
Note: If the measurement result does not meet the specification value, check the compressor setting value and retry inspection.
120 sec
120 sec
30 sec
-40.0 kPa
0 kPa
-45.0 kPa
-50.0 kPa
Air
pressure
-0.0 kPa
FFF
-5.0 kPa
-10.0 kPa
Indicated
value
Air switch: open
Air switch: close
Measurement
Measure this changed value.
One minute later, it is OK
if the value within 0.45 kPa.
One minute later, it is OK
if the value within 0.45 kPa.
1-4-2. Inspection Procedure (Hand Pump Type)
1. Turn on the air-leak tester.
2. Keep the vacuum pad by pressing it to the center of test hole (tripod hole) on the camera.
2. Keep the vacuum pad by pressing it to the center of test hole (tripod hole) on the camera.
OK
Tilt
NG
Test hole
Air leak
Caution :
Keep vacuum pad vertically by touching with finger.
Do not keep pressing it to the camera.
Do not touch the tube during the measurement, or measurement
Do not touch the tube during the measurement, or measurement
value may be changed.
Perform the measurement under no vibration.
Perform the measurement under no vibration.
It may cause the air-leak under the condition with vibration.
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