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

AEP Model

UK Model

E Model

Hong Kong Model

Australian Model

Japanese Model

DSC-F77/FX77

Chinese Model

Korea Model

Tourist Model

DSC-F77

• 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.

1. SERVICE NOTE
2. DISASSEMBLY

3. BLOCK DIAGRAMS

4. PRINTED WIRING BOARDS

AND SCHEMATIC DIAGRAMS

5. REPAIR PARTS LIST

OVERALL
POWER
CD-415 BOARD, ST-78 BOARD, KK-
29 BOARD, FP-585 FLEXIBLE,
FP-586 FLEXIBLE, CONTROL
SWITCH BLOCK

EXPLODED VIEWS
ELECTRICAL PARTS LIST

Photo: DSC-FX77

— 2 —

Section

Title

Page

4-2.

Schematic Diagrams ························································ 4-5
SY-81 (1/13)
(A/D CONVERTER, TIMING GENERATOR) ·············· 4-9
SY-81 (2/13) (CAMERA DSP) ····································· 4-11
SY-81 (3/13) (SH DSP) ················································· 4-13
SY-81 (4/13) (VIDEO, CLOCK GENERATOR) ·········· 4-15
SY-81 (5/13) (LENS DRIVE) ······································· 4-17
SY-81 (6/13) (HI CONTROL) ······································· 4-19
SY-81 (7/13) (AUDIO) ·················································· 4-21
SY-81 (8/13) (LCD DRIVE) ········································· 4-23
SY-81 (9/13) (FLASH CONTROL) ······························ 4-25
SY-81 (10/13) (CONTROL SWITCH) ························· 4-27
SY-81 (11/13) (DC IN, CRADLE TERMINAL) ·········· 4-29
SY-81 (12/13) (DC/DC CONVERTER) ························ 4-31
SY-81 (13/13) (REGULATOR) ····································· 4-33
BT-14 (FX77) (BLUETOOTH) ····································· 4-35

4-3.

Printed Wiring Boards ··················································· 4-43
SY-81 ············································································· 4-47
BT-14 (FX77) ································································ 4-51

4-4.

Waveforms ····································································· 4-58

4-5.

Mounted Parts Location ················································ 4-61

5-2.

Electrical Parts List ····················································· 5-10

4-5

(For schematic diagrams)
• All capacitors are in 

µ

F unless otherwise noted. pF : 

µ

µ

F.  50 V or less are not indicated except for electrolytics

and tantalums.

• Chip resistors are 1/10 W unless otherwise noted.

k

Ω

=1000 

Ω

, M

Ω

=1000 k

Ω

.

• Caution when replacing chip parts.

New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum
capacitor, Because it is damaged by the heat.

• Some chip part will be indicated as follows.

Example

C541

L452

22U

10UH

TA  A

2520

• Constants of resistors, capacitors, ICs and etc with XX

indicate that they are not used.
In such cases, the unused circuits may be indicated.

• Parts with 

★

 differ according to the model/destination.

Refer to the mount table for each function.

• All variable and adjustable resistors have characteristic

curve B, unless otherwise noted.

• Signal name

XEDIT

→ 

EDIT

PB/XREC 

→

 PB/REC

•

2

: non flammable resistor

•

5

: fusible resistor

•

C

: panel designation

•

A

: B+ Line

•

B

: B– Line

•

J

: IN/OUT direction of (+,–) B LINE.

•

C

: adjustment for repair.

•

A

: VIDEO SIGNAL (ANALOG)

•

A

: AUDIO SIGNAL (ANALOG)

•

A

: VIDEO/AUDIO SIGNAL

•

A

: VIDEO/AUDIO/SERVO SIGNAL

•

A

: SERVO SIGNAL

• Circled numbers refer to waveforms.
(Measuring conditions voltage and waveform)

• Voltages and waveforms are measured between the

measurement points and ground when camera shoots
color bar chart of pattern box.  They are reference values
and reference waveforms.
(VOM of DC 10 M

Ω

 input impedance is used)

• Voltage values change depending upon input

impedance of VOM used.)

1. Connection

2. Adjust the distance so that the output waveform of

Fig. a and the Fig. b can be obtain.

When indicating parts by reference number, please
include the board name.

Kinds of capacitor

Case size

External dimensions (mm)

The components identified by mark 

0

 or

dotted line with mark 

0

 are critical for safety.

Replace only with part number specified.

Y

ello

w

A

A

B

B

A=B

Fig. a (Video output terminal output waveform)

H

Cy

an

Green

White

Magenta

Red

Blue

Fig.b (Picture on monitor TV)

Front of the lens

L = About 30 cm

Pattern box

L