Sony KP 48S75 Benutzerhandbuch

– 67 –

– 68 –

– 69 –

– 70 –

6-3. CIRCUIT BOARDS LOCATION

6-4. PRINTED WIRING BOARDS AND

SCHEMATIC DIAGRAMS

Note:
• Capacitors without voltage indication are all 50V.
• All resistors are in ohms.

=1000

, M

=1000k

• Indication of resistance, which dose not have one for rating electrical power, is

as follows.

Pitch : 5mm

Rating electrical power :

•

: nonflammable resistor.

•

: fusible resistor.

•

: internal component.

•

: panel designation and adjustment for repair.

• All variable and adjustable resistors have characteristic curve B, unless otherwise

noted.

•

: earth-chassis.

• The components identified by

in this basic schematic diagram have been

carefully factory-selected for each set in order to satisfy regulations regarding
X-ray radiation.

Should replacement be required, replace only with the value originally used.

• When replacing components identified by

, make the necessary adjustments

indicated. If results do not meet the specified value, change the component
identified by

and repeat the adjustment until the specified value is achieved.

(Refer to R536,R545 and C517 adjustment on Page 51 – 52.)

• When replacing the part in below table, be sure to perform the related adjustment.

• Readings are taken with a color-bar signal input.
• Readings are taken with a 10M

digital multimeter.

• Voltages are dc with respect to ground unless otherwise noted.
• Voltage variations may be noted due to normal production tolerances.
• All voltages are in V.

* : Measurement impossibillity.

• Circled numbers are waveform references.

•

: B+ bus.

•

: B– bus.

•

: signal path.(RF)

Reference information
RESISTOR

: RN

METAL FILM

: RC

SOLID

: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW

NONFLAMMABLE WIREWOUND

: RS

NONFLAMMABLE METAL OXIDE

: RB

NONFLAMMABLE CEMENT

ADJUSTMENT RESISTOR

COIL

: LF-8L MICRO INDUCTOR

CAPACITOR : TA

TANTALUM

: PS

STYROL

: PP

POLYPROPYLENE

: PT

MYLAR

: MPS

METALIZED POLYESTER

: MPP

METALIZED POLYPROPYLENE

: ALB

BIPOLAR

: ALT

HIGH TEMPERATURE

: ALR

HIGH RIPPLE

HV HOLD-DOWN

(R536, R545)

HV Regurator

(C517)

Adjustment (

)

Part replaced (

)

C517, C521, C522, IC654, L504, T502,
T504, DY, A board, G board

C516, C536, D506, D507, D522, IC206,
IC502, IC654, L504, R511, R522, R536,
R538, R545, R548, R584, T502, T504,
DY, A board, G board

Note: The symbol

display is on the component slde.

The components identified by shading and mark
are critical for safety. Replace only with part number
specified.

The symbol

indicate fast operating fuse.

Replace only with fuse of same rating as maked.

Note: Les composants identifiés per un tramé et une marque

sont critiques pour la sécurité. Ne les remplacer

que par une piéce portant le numéro spécifié.

Le symbole

indique une fusible a action rapide.

Doit etre remplacee par une fusible de meme yaleur,
comme maque.

B1 E1

B2 C1

!¡

!™

!¢

!§

!¶

!•

–

B2 E2

B1 C2

B2 E2

B1 C2

B2 E2

B1 C2

!ª

B1 E1

C1(B2)

@º

@™

@£

(B2)

@¡

C1(B2)

E1(B2)

Ver.1.6

Transistor
(FET)

Transistor

Discrete semiconductot

(Chip semiconductors that are not actually used are included.)

Diode

Source

Anode

(NC)

Cathode

Anode

Cathode

Common

Cathode

Common

Cathode

Common

Cathode

Anode

Base

Emitter

Collector

Base

Emitter

Collector

Drain

Gate

Drain

Device

Printed symbol

Terminal name

Circuit

Anode

Cathode

Anode

Cathode

!£

Transistor
(FET)

!∞

Emitter

Collector

Base

Transistor

Source

Gate

Drain

Cathode

Anode

Cathode

Anode

Terminal name of semiconductors in silk screen

printed circuit (

)

6-2. FRAME SCHEMATIC DIAGRAM

H V

G 2 ( R )

G 2 ( G )

G 2 ( B )

F V ( R

)

F V ( G )

F V ( B )

D E T

D F

E ( H V )

H V ( B )

H V ( G )

H V ( R )

M V

T O H V B L O C K

G 2

T O A : C N 0 0 1

T O C R T - G N D- G N D

T O C R T - G N D

T O D Y ( B )

T O D Y ( G )

T O D Y ( R )

135

T O A : C N 0 0 2

T O H A : C N 1 2 0 2

T O A : C N 6 8 1

T O A : C N 4 0 2

T O A : C N 2 0 2

T O A : C N 8 0 1

T O C G : C N 1 3 0 1

T O C G : C N 1 3 0 2

T O F O C U S B L O C K

T O C G : C N 7 3 2

T O C R : C N 7 0 1

T O A : C N 2 0 3

T O C B : C N 7 6 1

T O A : C N 2 0 4

T O C B : C N 7 6 2

T O C R : C N 7 0 2

T O G : C N 5 0 3

T O H A : C N 1 2 0 1

T O H B : C N 1 2 5 2

T O G : C N 6 0 5

T O G : C N 5 0 1

T O G : C N 1 5 0 2

T O S P E A K E R

T O G : C N 6 5 1

T O A N T S W

T O C G : C N 7 3 4

T O G : C N 5 0 6

T O G : C N 1 5 0 3

T O G : C N 1 5 0 6

T O G : C N 1 5 0 4

T O G : C N 1 5 0 7

T O G : C N 5 0 4

T O G : C N 1 5 0 5

T O G : C N 1 5 0 8

T O C G : C N 7 3 1

T O U : C N 1 7 0 2

IKR

T O C G : C N 7 3 5

IKR

T O C G : C N 7 3 3

T O C G : C N 7 3 6

T O C G : C N 1 3 0 3

H V

H V . R E G

T O A : C N 8 0 2

T O C G : C N 1 3 0 4

T O G : C N 6 5 3

T O D Y ( B )

T O D Y ( G )

T O D Y ( R )

T O D Y ( B )

T O D Y ( R )

T O D Y ( G )

T O D Y ( R )

T O D Y ( B )

T O D Y ( G )

V.DRIVE(-)

)

T O H B : C N 1 2 5 3

FRONT SW

FR Y IN

FR C IN

FR V IN

FR L IN

FR R IN

A C ( W )

A C ( L )

R-H(+)

R-H(-)

G-H(+)

G-H(-)

B-H(+)

B-H(-)

HR OU

HR RET

RET

HG OUT

HG RET

OUT

RET

HB OUT

HB RET

VB OUT

VB RET

RV M

RV R

V DEF

GV M

GV RET

BV DEF

BV MID

BV RET

H ( + )

H ( - )

N C

2 0 0 V

N C

B / S

R / S

135V

11V

LAY

STBY 5V

UDIO(-)

AUDIO(+)

+5V

-5V

V.DRIVE(-)

)

V.D

RIVE(+)

REGI M

UTE

V.BLK

D FOCU

ABL

HV PR

9 V

REG

I MUTE

V.BLK

D FOCUS

ABL

HV PR

AUDIO(-)

AUD

IO(+)

+5V

-5V

V.DRIVE(+)

135V

11V

RELAY

OVP

STB

( A S - 2 F )

ANT SW 2

ANT SW 1

D F

G 2

R 5 6 1

+ B I N

+ B O U T

H V . R E G

1 3 5 V

N C

9 V

V M

L E F T

U P P E R

L O W E R

R I G H T

A N T S W 2

A N T S W 1

9 V

S T D B Y 5 V

I K

SIR

B INT

B DAT

B CLK

SDA

PSC

F R O N T S W

R - T

L - T

+ -

T W E E T E R

W O O F E R

T W E E T E R

M E N U K E Y

F R R • O U T

F R L • O U T

F R V • O U T

F R Y • O U T

F R C • O U T

M E N U K E Y

S I R C S

F O C U S
B L O C K

H V B L O C K

SENSE

SENSER

H ( - )

H ( + )

N C

H ( - )

H ( + )

N C

B / S

N C

H ( - )

H ( + )

N C

R / S

N C

B / S

H ( + )

N C

R / S

N C

H ( - )

N C

IKB

N C

H ( - )

H ( + )

N C

R / S

N C

B / S

.OUT

.RET

.OUT

.RET

V M A S S Y

5 3 S 7 5 / 6 1 S 7 5
S e r i a l N o . 9 , 5 0 0 , 0 0 1 -

E x c e p t
5 3 S 7 5 / 6 1 S 7 5
S e r i a l N o . 9 , 5 0 0 , 0 0 1 -

5 3 S 7 5 / 6 1 S 7 5
S e r i a l N o . 9 , 5 0 0 , 0 0 1 -

V M A S S Y

V M . I N

V M . R E T

H V

DY(H)

SUB D

DY(V)

ID)

H-

H.IN

V.IN

V.RET

H.RET

V.DEF

V.M

V.RET

.IN

VM.RET

T O F O C U S B L O C K

2 0 0 V

T O F O C U S B L O C K

2 0 0 V

T O G B O A R D C N 5 0 5

.OUT

VM.RET

GND

T O S : C N 3 0 0 1

ST BY 5V

SIR

KEY

POW

TIME

R LED

MEN

ST BY 5V

T O H C B O A R D C N 1 2 9 1

T O H A B O A R D C N 1 2 0 3

C H E C K

F O R

KEY

POW

TIM

ER LED

ENU

KEY

S T B Y 5 V

ST BY 5V

H+

DY(H)

SUB DY

DY(V)

(MID)

H-

H.IN

V.IN

V.RET

H.RET

V.DEF

V.M

V.RET

.IN

.RET

H+

DY(H)

SUB DY

DY(V)

(MID)

H-

H.IN

V.IN

V.RET

H.RET

V.DEF

V.M

V.RET

VM.IN

.RET

H+

SEN

SER

SENSER

V M . I N

V M . R E T

V M . I N

V M . R E T

H V

)

F B T

( I N / O U T S E L E C T )

H C

H B

H A

A N T S W

C R

C G

C B

D Y

( R )

D Y

( G )

D Y

( B )

CRT (R)

CRT (G)

CRT (B)

E x c e p t
5 3 S 7 5 / 6 1 S 7 5
S e r i a l N o . 9 , 5 0 0 , 0 0 1 -

C N 1 2 0 2

C N 6 0 5

C N 1 5 0 2

C N 5 0 1

C N 5 0 3

C N 5 0 7

C N 5 0 2

R 5 4 5
:

∆

C N 1 5 0 1

C N 5 0 6

C N 5 0 4

C N 1 5 0 3

C N 1 5 0 4

C N 1 5 0 5

C N 1 5 0 6

C N 1 5 0 7

C N 1 5 0 8

C N 7 3 8

C N 7 4 0

C N 7 6 5

C N 1 2 9 1

C N 1 2 5 3

C N 1 2 5 2

C N 6 8 1

C N 2 0 3

C N 2 0 2

C N 8 0 1

C N 8 0 2

C N 4 0 3

C N 4 0 2

C N 0 0 3

C N 0 0 1

C N 2 0 4

C N 6 5 1

C N 6 0 1

C N 6 5 2

C N 7 0 5

C N 7 0 6

C N 7 0 4

C N 7 0 1

C N 7 0 2

C N 7 3 9

C N 7 3 2

C N 1 3 0 4

C N 7 3 5

C N 7 3 6

C N 7 3 4

C N 7 3 1

C N 7 3 3

C N 7 6 1

C N 7 6 4

C N 7 6 6

C N 7 6 2

C N 1 5 1

C N 7 0 3

C N 7 3 7

C N 7 6 3

C N 5 0 5

C N 3 0 0 1

S 3 0 0 1

C N 1 3 0 2

C N 1 3 0 1

C N 1 3 0 3

C N 0 0 2

C N 1 2 0 3

4 P

B L K - L

: S - M I C R O

2 P

W H T - L

: S - M I C R O

1 0 P

: B T O B - S

1 0 P

: B T O B - S

1 0 P

: B T O B - S

1 0 P

W H T

: S - M I C R O

2 P

: M I N I

2 P

: L A R G E

4 P

W H T

: S - M I C R O

4 P

: V H

4 P

: V H

4 P

R E D

: S - M I C R O

4 P

Y E L

: S - M I C R O

4 P

B L K

: S - M I C R O

3 P

W H T

: S - M I C R O

3 P

W H T

: S - M I C R O

3 P

W H T

: S - M I C R O

: F A S T O N

3 P

W H T - L

: S - M I C R O

1 1 P

W H T - L

: S - M I C R O

2 P

W H T - L

: S - M I C R O

C N 1 7 0 2

1 1 P

W H T - L

: S - M I C R O

1 0 P

: B T O B - P

6 P

W H T

: S - M I C R O

1 0 P

: B T O B - P

1 0 P

: B T O B - P

8 P

W H T

: S - M I C R O

4 P

W H T

: S - M I C R O

1 0 P

: B T O B - P

1 1 P

: B T O B - S

4 P

B L K

: S - M I C R O

9 P

R E D

: S - M I C R O

1 0 P

: B T O B - S

2 P

W H T
: V H

3 P

: M I N I

: F A S T O N

4 P

W H T

: S - M I C R O

9 P

R E D

: S - M I C R O

: F A S T O N

4 P

W H T

: S - M I C R O

6 P

W H T

: S - M I C R O

9 P

R E D

: S - M I C R O

9 P

W H T

: S - M I C R O

1 0 P

W H T

: S - M I C R O

9 P

R E D

: S - M I C R O

5 P

W H T

: S - M I C R O

5 P

W H T

: S - M I C R O

: F A S T O N

9 P

W H T

: S - M I C R O

: F A S T O N

4 P

: V H

3 P

W H T - L

: S - M I C R O

3 P

W H T

: S - M I C R O

3 P

W H T

: S - M I C R O

3 P

W H T

: S - M I C R O

1 0 P

W H T

: S - M I C R O

7 P

W H T - L

: S - M I C R O