DSC-F77, DSC-F77A, DSC-FX77 - Sony Digital Camera Service Manual (repair manual)

• For ADJUSTMENTS (SECTION 6), refer to SERVICE MANUAL, ADJ (992999751.pdf).
• For INSTRUCTION MANUAL, refer to SERVICE MANUAL, LEVEL 1 (992999741.pdf).

• Reference No. search on printed wiring boards is available.

This service manual provides the information that is premised the circuit board replacement service and not intended repair
inside the SY-81and BT-14 (FX77) boards.
Therefore, schematic diagram, printed wiring board, waveforms, mounted parts location and electrical parts list of the SY-81
and BT-14 (FX77) boards are not shown.
The following pages are not shown.

Schematic diagram ...................... Pages 4-9 to 4-36
Printed wiring board ..................... Pages 4-47 to 4-52
Waveforms .................................... Pages 4-58 and 4-59

Mounted parts location ................. Pages 4-61 and 4-62
Electrical parts list ........................ Pages 5-10, 5-12 to 5-18

AEP Model

UK Model

E Model

Hong Kong Model

Australian Model

Japanese Model

DSC-F77/FX77

Chinese Model

Korea Model

Tourist Model

DSC-F77

Photo: DSC-FX77

— 2 —

Image device 8.98 mm (1/1.8 type) color

CCD
Primary color filter

Total pixels number of camera

Approx. 4 130 000 pixels

Effective pixels number of camera

Approx. 3 950 000 pixels

Lens

f=7.65 mm
(35 mm camera conversion: 37mm
(1 

15

/

32

 inches))

F2.8

Exposure control

Automatic,
Scene selection (four modes)

White balance

Automatic, Daylight, Cloudy,
Fluorescent, Incandescent

File format (DCF compliant)

Still images: Exif Ver. 2.2, JPEG
compliant, GIF (for Clip Motion),
DPOF compatible
Audio with still image: MPEG1
compliant (Monaural)
Movies: MPEG1 compliant (Monaural)

Recording media

“Memory Stick”

Flash

Recommended distance
0.5 to 1.7 m (1 feet 7 

3

/

4

 inches to

5 feet 7 inches)
(when ISO sensitivity is set to Auto)

Multi connector

LCD panel used

3.8 cm (1.5 type) TFT drive

Total number of dots

123 200 (560

×220) dots

Used battery pack

NP-FC10

Power requirements

3.6 V

Power consumption (when shooting)

1.9 W

Operating temperature range

0º to +40ºC (32º to +104ºF)

Storage temperature range

–20º to +60ºC (–4º to +140ºF)

Dimensions

DSC-F77:
92.6 

× 71 × 27 mm

(3 

3

/

4

 

× 2 

7

/

8

 

× 1 

1

/

8

 inches)

DSC-FX77:
98.1 

× 71 × 27 mm

(3 

7

/

8

 

× 2 

7

/

8

 

× 1 

1

/

8

 inches)

(W/H/D, protruding portions not included)

Mass

DSC-F77: Approx. 180 g (6.3 oz)
DSC-FX77: Approx. 185 g (6.5 oz)
(NP-FC10 battery pack, “Memory Stick” and
wrist strap included)

Microphone

Electret condenser microphone

Speaker

Dynamic speaker

Communication type

Bluetooth standards, ver. 1.1

Maximum transmission speed

1)

About 723 Kbps

Output

Bluetooth standards, Power Class 2

Communication distance

2)

About 10 m (3.3 feet) without obstacles

Compatible Bluetooth profile

3)

Basic Imaging Profile (Image Push Initiator,
Image Push Responder,
Remote Camera Responder)

Frequency band

2.4 GHz (2.400 to 2.4835 GHz)

1) Maximum data transmission speed based on Bluetooth

standards, ver. 1.1.
This speed depends on the distance between the devices,
obstacles, radio wave conditions, application software, or the
OS.

2) This distance depends on the obstacles between the devices,

radio wave conditions, application software, or the OS.

3) This specification is in accordance with the intended use

between two Bluetooth devices.
This is defined by the Bluetooth standards.

Input/output connectors

A/V OUT (MONO) jack (Monaural)

Minijack
Video: 1 Vp-p, 75 

Ω, unbalanced,

sync negative
Audio: 327 mV (at a 47 k

Ω load)

Output impedance 2.2 k

Ω

USB jack

mini-B

DC IN connector
Camera connector

Power requirements

AC 100 to 240 V, 50/60 Hz

Rated output voltage

DC 4.2 V, 1.5 A

Operating temperature range

0º to +40ºC (32º to +104ºF)

Storage temperature range

–20º to +60ºC (–4º to +140ºF)

Dimensions

47 

× 30 × 80 mm (1 

7

/

8

 

× 1 

3

/

16

 

× 3 

1

/

4

 inches)

(W/H/D, protruding parts not included)

Mass

Approx. 170 g (6.0 oz)
(adaptor only)

Used battery Lithium ion battery
Maximum voltage

DC 4.2 V

Nominal voltage

DC 3.6 V

Capacity

2.4 Wh (675 mAh)

• NP-FC10 battery pack (1)
• AC-LM5 AC power adaptor (1)
• UC-FA USB cradle
• USB cable (1)
• A/V connecting cable (1)
• Power cord (mains lead) (1)
• Wrist strap (1)
• “Memory Stick” (16MB) (1)
• CD-ROM (USB driver: SPVD-008) (1)
• Operating Instructions (1)
DSC-FX77:
• Bluetooth Function Operating Instructions (1)

Design and specifications are subject to change
without notice.

— 3 —

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.

0

0

— 4 —

Section

Title

Page

1-1.

Note for Repair ································································ 1-1

1-2.

Discharging of the ST-78 Board’s
Charging Capacitor (C104) ············································· 1-1

1-2-1. Preparing the Short Jig ···················································· 1-1
1-2-2. Discharging the Capacitor ··············································· 1-1
1-3.

Description on Self-diagnosis Display ···························· 1-2

1-4.

Disassembling the Hing Cover at Repairing
(DSC-FX77) ···································································· 1-3

2-1.

Hinge Cover (DSC-F77) ·················································· 2-2

2-2.

Hinge Cover, BT-14 Board (DSC-FX77) ························ 2-2

2-3.

Cabinet (Front) ································································ 2-3

2-4.

Inner Cabinet (Front) ······················································· 2-4

2-5.

Lens Block Assembly ······················································ 2-4

2-6.

Cabinet (Rear) Block ······················································· 2-5

2-7.

Cabinet (Bottom)  Assembly ··········································· 2-6

2-8.

Control Switch Block ······················································ 2-6

2-9.

Inner Cabinet (Rear), KK-29 Board ································ 2-7

2-10. LCD Module ···································································· 2-7
2-11. SY-81 Board ···································································· 2-8
2-12. Lens Block ······································································· 2-9
2-13. CD-415 Board, Optical Filter Block ······························· 2-9
2-14. ST-78 Board ··································································· 2-10
2-15. FP-585 Flexible Board Block ········································ 2-12
2-16. Circuit Boards Location ················································ 2-13
2-17. Flexible Boards Location ·············································· 2-14

3-1.

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

3-2

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

3-3.

Power Block Diagram (1/2) ············································· 3-5

3-4.

Power Block Diagram (2/2) ············································· 3-7

4-1.

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

4-2.

Schematic Diagrams ························································ 4-5
CD-415 (CCD IMAGER) ················································ 4-7
ST-78 (FLASH DRIVE) ················································ 4-37
KK-29 (LENS POSITION) ··········································· 4-39
CONTROL SWITCH BLOCK (MD51200) ················· 4-40
FP-585 FLEXIBLE ······················································· 4-41
FP-586 FLEXIBLE ······················································· 4-42

4-3.

Printed Wiring Boards ··················································· 4-43
CD-415 ·········································································· 4-45
ST-78 ············································································· 4-53
KK-29 ············································································ 4-55
FP-586 FLEXIBLE ······················································· 4-56

4-4.

Waveforms ····································································· 4-57

4-5.

Mounted Parts Location ················································ 4-60

5-1.

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

5-1-1. Overall Assembly (F77) ················································ 5-2
5-1-2. Overall Assembly (FX77) ············································· 5-3
5-1-3. Cabinet (Upper) Block Assembly ································· 5-4
5-1-4. Lens Cabinet Assembly ················································ 5-5
5-1-5. Cabinet (Rear) Block Assembly ··································· 5-6

5-1-6. BT Block Assembly-1 ··················································· 5-7
5-1-7. BT Block Assembly-2 ··················································· 5-8
5-2.

Electrical Parts List ······················································· 5-9

Section

Title

Page