DOWNLOAD Sony DSC-T7 (serv.man2) Service Manual ↓ Size: 3.06 MB | Pages: 39 in PDF or view online for FREE

1-1

DSC-T7

The charging capacitor of the FLASH unit 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 DSC-T7 is simply turned off.  Therefore, the remaining
voltage must be discharged as described below.

To preparing the short jig. a small clip is attached to each end of a
resistor of 1 k

Ω

 /1 W (1-215-869-11)

Wrap insulating tape fully around the leads of the resistor to prevent
electrical shock.

1 k

Ω

/1 W

Wrap insulating tape.

1

 Remove the cabinet (front) assembly.

2

 Peel off the absorbing sheet.

3

 Remove the  flexible board.

4

 Short circuits between the positive and the negative terminals of

    charged capacitor with the short jig about 10 seconds.

Capacitor

Shorting jig
(1k

Ω

 / 1w)

Flash unit

1-2E

DSC-T7

The error code is cleared if the battery is removed, except defective flash unit.
*1: The error display is given in two ways.

Display Code

C:32:01

C:13:01

E:91:01

E:01:XX

E:61:00  *1

E:61:10  *1

Countermeasure

Turn off the main power then back on.

Replace the memory stick.
Format the memory stick with the DSC-T7.

Checking of flash unit or replacement of
flash unit.

Checking of lens drive circuit

Cause

Trouble with hardware.

• The type of memory stick that cannot be

used by this machine, is inserted.

• Data is damaged.
• Unformatted memory stick is inserted.

Abnormality when flash is being
charged.

When failed in the focus initialization.

Caution Display During Error

SYSTEM ERROR

MS ERROR

Flash LED
Flash display
Flashing at 3.2 Hz

—

• C: ss: ss

The contents which can be handled
by customer, are displayed.

• E: ss: ss

The contents which can be handled
by engineer, are displayed.

DSC-T7

2-1

2-2

The following flow chart shows the disassembly procedure.

SY

-1

15

SY

-1

15

SY

-1

15

SY

-1

15

SY

-1

15

SY

-1

15

SY

-1

15

7

b

a

b

e

c

f

3

1

2

8

1

 Two screws (M1.4x2.5) silver

2

 Screw (M1.4x2.5) silver

3

 Two screws (M1.4x2.5) silver

4

 Twist the strap in the direction of arrow a.

5

 Open the battery lid.

6

 Grab b, c, and d, and apply force so that d turns 

     counterclockwise to disengage the claw e. 

Some reassembling steps of the unit require attention. 
Be sure to read HELP before reassembling.

1

 Flexible board (Flash unit) 

2

 Pick up the AF guide

3

Two claws

4

 Claw

5

 Two claws

6

 AF LED

7

 AF guide

8

 Flash unit 

1

 Control switch block (GP51710)

2

 Screw (M1.4x2.5) silver

3

 Remove the two claws in the direction 

     of the arrow.

4

 Main frame assembly, LCD unit, etc.

5

 Cabinet (rear) assembly, 

     control switch block (GP51710), etc.

1

 SW-454 flexible board

2

 Claw

3

 SW-454 flexible board

4

 Two claws

5

 Claw

6

 Flexible board 

    (from the Control switch block (RL51710))

7

 Flexible board 

    (from the MS-258 board)

8

 SY-115 board, MS guide assembly, etc.

Work while suppressing MC sheet metal

 by the finger.

MC sheet metal

1

 Claw

2

 MS guide assembly

3

 SY insulating sheet

4

 SW-454 flexible board 

5

 SY-115 board, battery terminal board

1

 MS-258 board

2

 Two MS electrostatic sheets

1

 Absorbing sheet

2

 Flexible board (from the LCD unit)

7

 Claw f

8

 Cabinet (front) assembly

9

 Ornamental plate

2

4

1

5

6

8

7

4

1

5

4

3

3

2

3

Capacitors

Shorting jig
(1k

Ω

 / 1w)

Flash unit

 Be sure to discharge the capacitor.

1

2

5

6

2

1

1

 UKI sheet

2

 Flexible board (from the lens unit)

3

 Flexible board 

    (from the CCD block assembly)

4

 Lens section

9

1

2

1

4

5

8

6

7

2

3

2

1

3

5

4

1

 Control switch block (RL51710)

2

 Claw

3

 MC sheet metal

4

 MC-149 board

1

4

3

2

Be careful not to drop the

            

MC sheet metal.

 

Be careful not to deform 

            the Cabinet (front) assembly.

4

DSC-T7

2-3

2-4

SY

-115

BOARD

SY

-1

15

SY

-1

15

SY

-1

15

SY

-1

15

SY

-1

15

SY

-1

15

SY

-1

15

Note1: By using an adhesive tape, press the lens cover switch (S701).
Note2: When checking the VIDEO AMP (SY-115 board IC350), connect an A/V connecting cable to the A/V jack of the conversion adaptor.

AC power
adaptor 

AC IN

DC-IN

SW-454
flexible board

MC-149 board

Conversion 
adaptor

SY-115 board,
Battery terminal board

CN707

CN001

CN703

CN705

CN702

CN704

CN701

CN706

CN002

CN001

Lens section

CD-541 board

MS-258 board

Flash unit

Control switch block
(GP51710)

Control switch block
(RL51710)

LCD unit

S701 Lens cover
switch (Note1)

Capacitors

Shorting jig
(1k

Ω

 / 1w)

Flash unit

 Be sure to discharge the capacitor.

7

3

8

1

2

1

2

2

4

3

1

5

7

6

8

4

3

2

1

5

4

3

2

4

5

8

6

7

1

2

3

5

4

2

1

1

4

3

2

9

1

2

3

a

b

c

5

6

4

1