DSC-T20, DSC-T20HDPR, DSC-T25 (serv.man2) - Sony Digital Camera Service Manual (repair manual). Page 13

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2-1
2. DISASSEMBLY
DSC-T20/T25_L2
NOTE FOR REPAIR
• Make sure that the flat cable and flexible board are not cracked of bent at the terminal.
Do not insert the cable insufficiently nor crookedly.
• When remove a connector, don’t pull at wire of connector. It is possible that a wire is snapped.
• When installing a connector, don’t press down at wire of connector.
It is possible that a wire is snapped.
• Do not apply excessive load to the gilded flexible board.
Cut and remove the part of gilt 
which comes off at the point.
(Be careful or some 
pieces of gilt may be left inside) 
DISCHARGING  OF  THE  ST-163 BOARD’S  CHARGING  CAPACITOR (C901)
The charging capacitor (C901) of the ST-163 board is charged
up to the maximum 300 V potential.
There is a danger of electric shock by this high voltage when the
capacitor is handled by hand.  The electric shock is caused by
the charged voltage which is kept without discharging when the
main power of the unit is simply turned off.  Therefore, the
remaining voltage must be discharged as described below.
Preparing the Short Jig
As the discharging location is in depths, the short jig may touch
to the opening of frame.
Expose the tip of resistor of 1k
Ω /1 W (1-215-869-11) by 1mm
and insulate the rest of it with insulation tape.
1 k
/1 W
Wrap insulating tape.
to about 1mm
to about 1mm
Note: High-voltage cautions
Discharging the Capacitor
Short-circuit between the two points 
with the short jig about 10 seconds.
To avoid the spark with the metal plate,
wrap the short jig with the insulation tape.
R:1 k
/1 W 
(Part code: 1-215-869-11)
Charging
Capacitor
2-2
DSC-T20/T25_L2
HELP
HELP
EXPLODED VIEW
HARDWARE LIST
2-1. DISASSEMBLY
2-1-1. OVERALL  SECTION
Follow the disassembly in the numerical order given.
1
Cabinet (Front) Assy (
1
-1 to 
1
-3)
2
Lens Block (
2
-1 to 
2
-2)
3
Cabinet (Rear) Assy (
3
-1 to 
3
-6)
1
Cabinet (Front)
     Assy
3
Cabinet (Rear) Assy
1
-1 (#18/#29)
1
-2 (#18/#29)
1
-3 (#18/#29)
2
Lens Block
2
-1
2
-2
3
-1 (#72)
3
-2 (#72)
3
-3 (claw)
3
-4 (claw)
3
-5 (claw)
3
-6
HELP
Note: High-voltage cautions
Discharging the Capacitor
Short-circuit between the two points 
with the short jig about 10 seconds.
To avoid the spark with the metal plate,
wrap the short jig with the insulation tape.
R:1 k
/1 W 
(Part code: 1-215-869-11)
Charging
Capacitor
Note: Speaker cable cautions
As the wire of speaker is fragile, disconnect the
connector carefully to prevent damage it.
2-3
DSC-T20/T25_L2
EXPLODED VIEW
HARDWARE LIST
2-1-2. SY-170  BOARD  SECTION
Follow the disassembly in the numerical order given.
1
SY-170 Board (
1
-1 to 
1
-6)
2
Flash Block (
2
-1 to 
2
-4)
1
SY-170 Board
2
-1 (hook)
2
-2 (claw)
2
-3 (claw)
2
-4
2
Flash Block
53
SY-170
ST-161
ST-163
1
-1
1
-2
1
-3
1
-5 (claw)
1
-6 (hook)
1
-4 (#72)
2-4E
DSC-T20/T25_L2
EXPLODED VIEW
2-1-3. FRAME  SECTION
Follow the disassembly in the numerical order given.
1
LCD Block (
1
-1 to 
1
-2)
2
Battery Holder Assy (
2
-1 to 
2
-4)
3
BT-034 Flexible Board (
3
-1 to 
3
-2)
1
LCD Block
2
-1 (claw)
2
-2 (claw)
2
-4
2
-3 (claw)
2
Battery Holder Assy
3
BT-034 Flexible Board
3
-1 (fook)
3
-2 (fook)
1
-1 (claw)
1
-2 (claw)

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