DOWNLOAD Sony DSC-TX20 (serv.man2) Service Manual ↓ Size: 5.58 MB | Pages: 36 in PDF or view online for FREE

Model
DSC-TX20 (serv.man2)
Pages
36
Size
5.58 MB
Type
PDF
Document
Service Manual
Brand
Device
Digital Camera / LEVEL 2
File
dsc-tx20-sm2.pdf
Date

Sony DSC-TX20 (serv.man2) Service Manual ▷ View online

DSC-TX20_L2
1-2
– ENGLISH –
1-1-2. Regarding the Positions of Water-proof Treatment
The positions of water-proof treatment are as shown below;
BTL Packing
Packing Cabinet
TP Adhesive Sheet
Touch Panel Glass
Lens Glass
Water Sheet
Inspection
ST Window
Sheet Microphone
Conductive Connector
ML Packing
RL Packing
ZM Packing
RL Shaft
ZM Shaft
Note:
•  It may cause the water leak that assemble with attached the dust to the Packing Cabinet.
  Assemble after confirm that there is no dust on the Packing Cabinet.
•  It may cause the water leak that the adhesive paper is not attached certainly.
  Confirm that the there is no crinkle when attaching, there is no dust on the Packing Cabinet and perform the clamping certainly.
1-2. SERVICING FLOW
This repair flow is an example and is not compulsory.
Modify this flow as needed according to the repair standard 
and other necessary documents for each area.
 
To maintain the waterproof performance of this unit, annual 
replacement (charged) of the waterproof packing is recom-
mended in the user’s manual and other documents.
START
Within one year
from purchase?
No
Was a problem 
on immersion 
indicated?
No
Yes
No
OK
Is there any 
trance of immersion 
on the unit?
Yes
No
No
OK
Is there any 
trance of immersion 
on the unit?
Judge by Air-leak test
Judge by Air-leak test
Judge by Air-leak test
Normal repair start
Normal repair end
A
Yes
NG
Yes
A
(See page 1-3)
(See page 1-3)
Check waterproof 
parts.
Yes
Replace waterproof
parts.
NG
Check waterproof 
parts.
Ask the customer 
about whether to replace 
waterproof parts.
(Note 1)
END
Normal repair start
Normal repair end
NG
OK
(Note 1) 
Explain the necessity of replacing waterproof parts to the customer.
When approval is gained from the customer, replace waterproof parts.
DSC-TX20_L2
1-3
– ENGLISH –
1-3.  WATER-PROOF INSPECTION TOOL
1-3-1. Water-proof Inspection Tool
There are two types of the air-leak tester, hand pump type and compressor type. Use either between two types.
VACUUM PAD
J-6082-734-2
HAND VACUUM PUMP
J-6082-734-1
Vacuum pad and hand vacuum pump are parts for
repair, and they are included in air-leak tester.
AIR-LEAK TESTER (COMPRESSOR TYPE)
J-6082-733-A
AIR-LEAK TESTER (HAND PUMP TYPE)
J-6082-734-A
Note :
A
Check the unit status.
   Is the unit deformed?
   Is any foreign object present in the water-stopping area?
   Is the waterproof packing deformed?
   Is any scratch or crack present on exterior parts?
   Is there any trance of immersion?
No
OK
Yes
(See page 1-2)
Yes
Clean the waterproof packing.
Unrepairable
Remove foreign object from the 
water-stopping area, replace exterior 
parts/waterproof parts, etc.
When the unit cannot be repaired, 
take individual measures.
(Conforming to warranty provisions/area 
judgment)
(Note 2) 
Judge whether the unit is repairable or not based on the repair standard 
at each depot.
Repairable?
(Note 2)
No
Normal repair
Judge by Air-leak test
NG
Check waterproof 
parts.
END
Yes
Replace waterproof parts.
Ask the customer 
about whether to replace 
waterproof parts.
(Note 1)
No
(Note 1) 
Explain the necessity of replacing waterproof parts to the customer.
When approval is gained from the customer, replace waterproof parts.
DSC-TX20_L2
1-4
– ENGLISH –
2.  Remove the side-mounted screw, set the two dry-cell batteries (type 9V).
 
DC power supply can be use in place of the dry-cell batteries. (DC12 V to 24 V)
 
1-3-4. Operation of Pressure Indicator
 
• Perform the setting (Focus mode, -40.0 kPa)
1.  Press the MODE button for 3 seconds or more.
2.  Press the MODE button at 1 time.
3. Press 
the   button, and select the Foc mode.
4.  Press the MODE button at 1 time.
5. Press 
the   button, and change to “-40.0”.
6.  Press the MODE button at 6 times.
7.  Indicated value is changed to “FFF”.
• Initialize
Press the set button 5 times with holding down the MODE button.
1-3-5. The Switch of Air-leak Tester (Compressor Type)
Turn to the Right : Decrease in pressure
Turn to the Left   : Increase in pressure
Pressure Regulator Knob
Open
Close
Air Switch
1-3-2. Assembly of Air-leak Tester (Compressor type)
1.  Insert the tube with vacuum pad into the right side connector, and connect the compressor (0.40 MPa or more) to the left side connector.
 
to Compressor
Tube (Outside diameter 6mm)
2.  Remove the side-mounted screw, set the two dry-cell batteries (type 9V).
 
DC power supply can be use in place of the dry-cell batteries. (DC12 V to 24 V)
 
1-3-3. Assembly of Air-leak Tester (Hand Pump Type)
1.   Insert the tube with vacuum pad into the right side connector, and connect the hand pump to the left side connector.
 
DSC-TX20_L2
1-5
– ENGLISH –
 
120 sec
30 sec
60 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.
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 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
value may be changed.
Perform the measurement under no 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.
 
4   The change value is getting settle, wait 120 seconds with keeping the pressure at around the -5.0kPa (within -0.0kPa to -10.0kPa).
Caution:  Do not operate the hand pump after settling the change value.
   
If operate the hand pump again, wait 120 seconds form then.
1-4.  AIR-LEAK TEST
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.
 
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 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
value may be changed.
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 10 seconds with setting air switch to “close”, and write the indicated value.
6.  In addition, leave for 1 minute, 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 and the battery/memory card 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.
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