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2-1

DSC-T90_L2

• 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) 

The charging capacitors (C901, C902) are 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.

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.

SY

-226

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

Ω

/1 W 

(Part code: 1-215-869-11)

ST-199 Flexible
Board

Capacitors

C901

C902

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DSC-T90_L2

  - Front Block

  - Lens Block
  - SY-226 Board
  - BT Lid Base

  - ST-199 Flexible Board
  - LCD Block

Front Block

Frame Assy

Control Switch Block
(RL61230)

Loudspeaker
(1.0cm)

LCD Block

Lens Block

BT Lid Assy

Rear Cabinet Block

2-3

DSC-T90_L2

1

 Front Block

Main Section

1

-4

(Open)

1

-5 (#45)

1

-1

(#142/#143)

1

-11

(#144)

1

-13

(Claw)

1

-12

1

-3

(#142/#143)

Front Block

Secure with tapes.

Remove two bosses
while holding the lens cover
on the center.

On assembling, attach the front block while holding the lens cover on the center.

1

-9

(Bosses)

1

-6

(Set the lens cover
 to the center.)

1

-10

1

-7

(#142/#143)

Microphone
Holder

1

-8

(#142/#143)

1

-2

(#142/#143)

Note: Microphone holder caution

There are some cases the microphone holder
is caught on the front block.

When removing the Front block,
be careful not to damage the flexible board.

1

-14E

Follow the disassembly in the numerical order given.

1

Front Block (

1

-1 to 

1

-14)

2-4

DSC-T90_L2

SY

-226

A

B

C

E

1

-4

1

-5

2

-4

2

-5

2

-6

2

-8

2

-12

(Claw)

A

B

C

A

B

C

D

E

E

D

1

 Lens Block

2

 SY-226 Board

3

 BT Lid Base

ST/Rear Section

2

-1

(Claws)

2

-9

(#45)

2

-11

2

-10

(Claw)

2

-2

ST-199 Flexible

Board

1

-1

(#142)

1

-3

(Peel off the flexible cable.)

1

-6E

1

-2

1

-4

3

-2

(Claws)

3

-5

(Claw)

3

-1

3

-6E

3

-3

(Claw)

3

-4

1

-5

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.

On assembling, note that do not
forget to attach the flexible cable.

Be sure not to lose MS light guide.

2

-4

2

-3

2

-5

2

-6

2

-8

2

-7

2

-12

(Claw)

2

-13E

(Claw)

R:1 k

Ω

/1 W 

(Part code: 1-215-869-11)

ST-199 Flexible
Board

Follow the disassembly in the numerical order given.

1

Lens Block (

1

-1 to 

1

-6)

2

SY-226 Board (

2

-1 to 

2

-13)

3

BT Lid Base (

3

-1 to 

3

-6)