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DSC-T50_L2

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1.

Check the area of your repair for unsoldered or poorly-soldered
connections.  Check the entire board surface for solder splashes
and bridges.

2.

Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.

3.

Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous repair.  Point
them out to the customer and recommend their replacement.

4.

Look for parts which, through functioning, show obvious signs
of deterioration.  Point them out to the customer and
recommend their replacement.

5.

Check the B+ voltage to see it is at the values specified.

6.

FLEXIBLE Circuit Board Repairing

• Keep the temperature of the soldering iron around 270°C

during repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)

Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher than

ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350

°C.

Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscous (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

After correcting the original service problem, perform the following

safety checks before releasing the set to the customer.

CAUTION

Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.

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DSC-T50_L2

1-1.

Description on Self-diagnosis Display ···························· 1-1

1-2.

Process After Fixing Flash Error ····································· 1-1

1-3.

Method for Copying or Erasing the Data in Internal
Memory (Internal Memory/Music) ································· 1-2

1-4.

Precaution on Replacing the SY-164 Board ···················· 1-3

2-1.

Disassembly ····································································· 2-2

3-1.

Overall Block Diagram (1/2) ··········································· 3-1

3-2.

Overall Block Diagram (2/2) ··········································· 3-2

3-3.

Power Block Diagram ····················································· 3-3

4-1.

Frame Schematic Diagram ·············································· 4-1

4-2.

Schematic Diagrams ························································ 4-3

4-3.

Printed Wiring Boards ··················································· 4-17

5-1.

Exploded Views ······························································· 5-2

5-2.

Electrical Parts List ························································· 5-5

Section

Title

Page

1-1

DSC-T50_L2

• C: ss: ss

You can reverse the camera
malfunction yourself. (However,
contact your Sony dealer or local
authorized Sony service facility
when you cannot recover from the
camera malfunction.)

• E: ss: ss

Contact your Sony dealer or local
authorized Sony service facility.

Display Code

  C:32:ss

  C:13:ss

Countermeasure

Turn the power off and on again.

Format the “Memory Stick” or internal
memory.

Cause

Trouble with hardware.

“Memory Stick” or internal memory is
unformatted.

Caution Display During Error

SYSTEM ERROR

FORMAT ERROR

MEMORY STICK ERROR

  E:61:ss

  E:91:ss

Insert a new “Memory Stick”.

“Memory Stick” is broken.

Turn the power off and on again.

Trouble with internal memory.

INTERNAL MEMORY ERROR

Checking of lens drive circuit.

When failed in the focus and zoom
initialization.

—

Checking of flash unit or replacement
of flash unit. (Note)

Abnormality when flash is being
charged.

After repair, be sure to perform “1-2. PROCESS AFTER FIXING FLASH ERROR”.

When “FLASH error”  (Self-diagnosis Code  E : 91 : ** ) occurs, to prevent any abnormal situation caused by high voltage, setting of the
flash is changed automatically to disabling charge and flash setting.
After fixing, this setting needs to be deactivated. Flash error code can be initialized by the operations on the Setup screen.

  E:62:ss

Steady shot function does not work well.

Inspect angular velocity sensor
Peripheral circuits.

Initializes the setting to the default setting.

The message “Initialize all settings Ready?” appears.

• Make sure that the power is not disconnected during resetting.

• Even when you initialize a setting, the data recorded on the internal memory is not deleted.

OK

Resets the settings to the default setting.

Cancel

Cancels the resetting.

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DSC-T50_L2

The data can be copied/erased by the operations on the Setup screen. (When erasing the data, execute formatting the internal memory.)

When replacing the SY-164 board, erase the data in internal memory of the board before replacement.

When replacing the SY-164 board or the IC401 on the SY-164 board, execute formatting and initialize the internal memory after
replacement.

This item does not appear when a “Memory Stick Duo” is inserted in the camera.

Formats the internal memory.

• Note that formatting irrevocably erases all data in the internal memory, including even protected images.

The message “All data in internal memory will be erased Ready?” appears.

OK

Formats the internal memory.

Cancel

Cancels the formatting.

If you cannot play back a Music file for the Slide Show, the Music file might be corrupted. If 
this happens, perform [Format Music].
When [Format Music] is performed, all the Music files are erased. Use the supplied 
application software “Music Transfer” to activate [Download Music].

The message “All data will be erased Ready?” appears.

OK

Formats the Music files. All data other than Music files remain as 
it is.

Cancel

Cancels the formatting.

Copies all images in the internal memory to a “Memory Stick Duo”.

1

Insert a “Memory Stick Duo” having 64 MB or larger capacity.

2

Touch [COPY].
The message “All data in internal memory will be copied Ready?” appears.

3

Touch [OK].
Copying starts. 

• Use a fully charged battery pack or the AC Adaptor (not supplied). If you attempt to copy image files 

using a battery pack with little remaining charge, the battery pack may run out, causing copying to fail or 
possibly corrupting the data.

• You cannot copy individual images.

• The original images in the internal memory are retained even after copying. To delete the contents of the 

internal memory, remove the “Memory Stick Duo” after copying, then execute the [Format] command in 

 (Internal Memory).

• You cannot select a folder copied on a “Memory Stick Duo”.

• Even if you copy data, a 

 (Print order) mark is not copied.

OK

Copies the image files in the internal memory.

Cancel

Cancels the copying.