DSC W55 Disassembly

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, dont' pull at wire of connector. It is possible that a wire is snapped.
• ¥ When installing a connector, dont' 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-133 BOARD'S CHARGING CAPACITOR (C901)

The charging capacitor (C901) of the ST-133 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

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.

2. DISASSEMBLY

2-1. DISASSEMBLY

2-1-1. CABINET BLOCK

EXPLODED VIEW

HARDWARE LIST

EXPLODED VIEW

HARDWARE LIST

EXPLODED VIEW

HARDWARE LIST

2-2. EXCHANGE METHOD OF BARRIER ASSY

Service parts

Table Caption: This table lists three parts with their corresponding part numbers, names, and quantities required. The parts include an ornamental ring, a barrier assembly, and tapping screws.

Tools used

Torque driver

Soldering iron

Weight about 60g

Adhesive tape (ornamental ring fixed) (2-677-885-01)

2-2-1. PEEL OFF OLD ORNAMENTAL RING A

The Ornamental Ring A has adhered to the Barrier Assy strongly and accordingly, use a soldering iron to weaken the adhesive force.

Heat two circled portions ( 1 , 2 )with the soldering iron.

Heating temperature is about 300…C.

Beware of a burn since the entire Ornamental Ring becomes hot.

• As the adhesive force of Ornamental Ring A is considerably large, the forced peeling will damage the group-1 frame.

Insert the tip of tweezers, etc. into a notch of the group-1 frame and prize the ring.

• Take extreme care so as not to damage the coated surface of the group-1 frame.

In case of difficult peeling, heat the ring again with the soldering iron.

If this re-heating failed, it may be advisable that