DOWNLOAD Sony KP-43HT20C / KP-53HS30C Service Manual ↓ Size: 9.55 MB | Pages: 127 in PDF or view online for FREE

– 42 –

AMP

Q9002-9007

G

GS

IK

8

6

7

10

6

7

10

4, 5,

9, 11

1

8

6

7

1

K

H+

H-

G2

G1

G2

V902

V901

H+

H-

200V

3

1

4

VM

6

H+

H-

6

7

H+

H-

6

7

G2

1

BUFFER

Q7202

V IN

V OUT

V IN

VM DRIVE

Q9008, 9009

CN7205

CN7202

CN7204

CN9001

CN7209

1

2

VM, OUT

VM, RET

VM

VM ASSY

CN7203

CN9002

K

H+

H-

G2

G1

4, 5,

9, 11

(R DRIVE)

(G DRIVE)

(VM DRIVE)

CN7108

CN7103

CN7104

FOCUS BLOCK

FOCUS BLOCK

200V

TO A

BOARD

CN17

TO

A

BOARD

CN703

3

3

3

Q7201

+12V

AMP

Q9002-9007

VM

6

VM DRIVE

Q9008, 9009

CN9001

1

2

VM, OUT

VM, RET

VM

VM ASSY

CN9002

(VM DRIVE)

TO A

BOARD

CN18

AMP

Q9002-9007

VM

6

VM DRIVE

Q9008, 9009

CN9001

1

2

VM, OUT

VM, RET

VM

VM ASSY

CN9002

(VM DRIVE)

TO A

BOARD

CN19

R

RS

IK

3

1

4

BUFFER

Q7102

V IN

V OUT

V IN

CN7102

TO

A

BOARD

CN704

3

3

3

Q7101

+12V

8

6

7

10

4, 5,

9, 11

V903

H+

H-

6

7

G2

1

K

H+

H-

G2

G1

(B DRIVE)

CN7309

CN7303

CN7305

FOCUS BLOCK

R

RS

IK

3

1

4

BUFFER

Q7302

V IN

V OUT

V IN

CN7302

TO

A

BOARD

CN702

3

3

3

Q7301

+12V

6

7

1

H+

H-

200V

CN7304

200V

TO

A

BOARD

CN8022

– 43 –

Q5001

Q5002

TO

A BOARD

CN4

TO 

A BOARD

CN706

TO

D BO

CN8

TO

A BO

CN

18

1

16

15

1

2

3

4

18

16

O

I

2

1

12

10

14

12

10

9

VS

VB

VG (L)

VC2

OCP

VC1

VG (H)

2

8

VD

V SENSE

+11V

F/B

IC6003

DRIVER

T6001

PIT

1

4

3

9

8

T6004

STANDBY

1

2

AC (H)

AC (L)

CN6005

RELAY

RY6003

CONV.

Q6006

RELAY

RY6002

7

9

15

13

IC5003

-5V REG.

IC5004

6V REG.

O

I

IC5006

STANDBY 5V REG.

RELAY DRIVE

Q5003, 5004

5

6

7

2

3

1

LINE

FILTER

L6001,

6002

+11V

D6007

D6002

PH6002

PH6001

IC501

D6012

D6011, 6020

D6006

D5017

Q5005

D5001

D5022

STBY 5V

D5003

D5010

D5006

D5002

D5009

D5008

Q5006

D5005

D5004

D5013

D5023

D5025

D5031

Q5007

D5018

D5019

D5026

IC5002

IC5005

D5020

D5007

D5014

1

4

AU 19V

AU -19V

CN5002

5

3

1

-5V

6V

11V 

CN5003

6

4
3
1

9

+22V

-22V
+15V
-15V

+135V

CN5004

5

4

1

3

OVP

OCP

STBY 5V

RELAY

CN6

(POWER SUPPLY)

AC IN

120VAC

60Hz

F6001

– 44 –

Note:
• Capacitors without voltage indication are all 50V.
• All resistors are in ohms.
   k=1000, M=1000k
• Indication of resistance, which dose not have one for rating electrical power, 

is as follows.

Pitch : 5mm
Rating electrical power : 1/ 4

 

W

 

•

: nonfl ammable 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 identifi ed  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 identifi ed by 

, make the necessary adjustments 

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

 an

d

 repeat the adjustment until the specified value is 

achieved.

   (Refer to VR8001 and VR8002 adjustment on Page 32.)

• Readings are taken with a NTSC 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

•

Divided schematic diagram

Schematic diagrams of A and G boards are divided into several 

pieces. Information to where the line is to be connected is printed 

at the end of each.

For example, [ TO A1/5,A2/5_1 ] means the line is connected to 

Ref. No. 1 of A(1/5) and A(2/5) schematic diagrams.

Ref. No.

Name of divided schematic diagram

S

CG

CR

G

A

CB

H2

H3

H1

H4

V

V

U

D

AD

B

G

D

S

B1 E1

C2

B2 C1

E2

2

3

4

5

6

7

8

9

0

!¡

!™

!¢

!§

!¶

!•

–

1

G

D

S

B2 E2

C1

B1 C2

E1

B2 E2

C1

B1 C2

E1

B2 E2

C1

B1 C2

E1

!ª

B1 E1

E2

C1(B2)

C2

@º

B1

E2

C1

C2

@™

@£

(B2)

E1

(B2)

E1

E2

B1

C2

C1

@¡

B1

E1

C2

B2

C1

E2

G

S

S

D

G

D

B1

E1

C2

B2

C1

E2

B1

E2

C2

C1(B2)

E2

B1

C1

C2

E1(B2)

C2

B1

C1

E2

E1(B2)

C2

B1

C1

E2

B2

E1

C2

Ver.1.5

Transistor
(FET)

Transistor

Transistor

Transistor

Transistor

Transistor

Transistor

Transistor

Transistor

Transistor

Discrete semiconductot

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

Diode

Diode

Diode

Diode

Diode

Diode

Diode

Diode

Diode

Diode

Source

Source

Anode

Anode

(NC)

(NC)

Cathode

Anode

Cathode

Common

Cathode

Cathode

Common

Cathode

Cathode

Common

Common

Common

Common

Cathode

Anode

Base

Emitter

Collector

Base

Emitter

Collector

Drain

Gate

Gate

Drain

Device

Printed symbolTerminal

 name

Circuit

Terminal name of semiconductors in silk screen

printed circuit ( 

*

 )

Anode

Anode

Anode

Cathode

Anode

Anode

Cathode

!£

Transistor
(FET)

Transistor
(FET)

!∞

Emitter

Collector

Base

Transistor

Source

Gate

Drain

Cathode

Anode
Anode

Cathode

Anode
Anode

– 45 –

EXCEPT
43HT20

EXCEPT
43HT20

1

A

B

C

D

E

F

G

H

I

J

2

12

13

11

10

9

8

7

6

5

4

3

14

1

15