Toshiba 43VJ22P Guida rapida

SCHEMATIC DIAGRAM

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY

PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL.

CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components

which have special characteristics important for safety and should be replaced only with types identical to those in the

original circuit or specified in the parts list. The mounting position of replacements is to be identical with originals.

Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE on the MANUAL for this

model. Do not degrade the safety of the receiver through improper servicing.

NOTE:

1. RESISTOR Resistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5%

tolerance carbon resistor, unless otherwise noted as the following marks.

1/2R = Metal or Metal oxide of 1/2 watt 1/2S = Carbon compsistion of 1/2 watt

1RF = Fuse resistor of 1 watt 10W = Cement of 10 watt

K = ±10% G = ±2% F = ±1%

2. CAPACITOR Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in

?F, and the values more than 1 in pF.

All capacitors are ceramic 50V, unless otherwise noted as the following marks.

Electolytic capacitor Mylar capacitor

3. The parts indicated with " *" have special characteristics, and should be replaced with identical parts only.

4. Voltages read with DIGITAL MULTI-METER from point indicated to chassing ground, using a color bar signal with all

controls at normal, line voltage 220 volts.

5. Waveforms are taken receiving color bar signal with enough sensitivity.

6. Voltage reading shown are nominal values and may vary ±20% except H.V.

MODEL : 43VJ22P

– 51 –

SCHEMATIC DIAGRAM STRUCTURE:

SIGNAL Circuit ( MAICON / OTHER ) [ SHEET - 1/4 ] ................. 1/8

( VCD / IF / V.OUT ) [ SHEET - 2/4 ] ................. 2/8

( AV / AUDIO ) [ SHEET - 3/4 ] ................. 3/8

( D-CONVER ) [ SHEET - 4/4 ] ................. 4/8

POWER Circuit ......................................................................................................... 5/8

DEF / CONV Circuit ( DEF ) [ SHEET - 1/2 ] ................. 6/8

( CONV ) [ SHEET - 2/2 ] ................. 7/8

CRT-D / SVM / FRONT Circuit ................................................................................. 8/8

–52 –

SPECIFIC INFORMATIONS

RearCenter

Main

CRT.RCRT.GCRT.B

VIDEO OUT

SVM OUT

VIDEO OUT

SVM OUT

VIDEO OUT

SVM OUT

V OUT

Q301

H OUT

Q404

CONVER OUT

Q751,Q752

SVMSVMSVM

D CONVER RGBYs

Rear AMP

Center AMP

Main AMP

BACK END PROCESSOR

Q510

RGB

OSD

QR01

RGB

MIXER

E/W

CORRECTION

UP C ONVERTER

BLK/CP/B-MASK

YCbCr->YUV

Y2/U/Vin

Q302

FBT

AFC

AMP

ADC

MPX ADC

TC90A61F

DFS

PLL

EM626327Q

SGRAM

TIF

MAA

H001

H002

L,R,SL,SR,C

L,R

SL,SR

L,R OUT-1

TV-L,R

TV-V

ANT

DIGITAL

AUDIO IN

W-OUT

AMP

AV S WQV01

I/O1

I/O2

I/O3

TV-L, R out

V,L , R OUT - 2

AUDIO OUT

FIX

RGBYs

Y/V,C,L,R S1

V,L , R

V,L , R S2

FRONT

S+AV

MICRO&TEXT

PROCESSOR

QA01

EEP-ROM

QA02

RGB Ys

SDA,SCL

SYNC-AV

SYNC-OUT

RGB

MULTI COLOR DECODER

Q501

EPG SW

CVBSout

Y1 in

Yviout

SYNCin

YCbCr

HD/VD

RGB1in

E4(YCbCr)

YCbCr1in

CVBS/Y2in

C-OUT C1in

D-COMB

Y-OUT

CVBS/Y1in

COMBin

2001 Euro PJTV CIRCUIT BLOCK DIAGRAM

CIRCUIT BLOCK DIAGRAM

SIGNAL-MAICON/OTHER

43VJ22P

[SHEET-1/4]

5.0

4.5

5.0

4.5

5.0

SIGNAL-MAICON/OTHER

43VJ22P

[SHEET-1/4]

5.0

4.5

5.0

5.00

5.0

43VJ22P

SIGNAL-VCD/IF/V.OUT

[SHEET-2/4]

(H)

0.8V(p-p)

(H)

0.6V(p-p)

(H)

0.7V(p-p)

(H)

0.53V(p-p)

(H)

0.75V(p-p)

(H)

0.9V(p-p)

0.78V(p-p)

Q301

out

5ms/DIV.

0.5V/DIV.

5ms/DIV.

20V/DIV.

9.0

-15.0

15.0

5.0

32.0

4.1

2.4

3.5

9.0

2.3

4.5

5.0

4.5

9.0

3.0

2.4

(H)

0.8V(p-p)

(H)

(H)0.6V(p-p)

(H)

0.7V(p-p)

(H)0.53V(p-p)

(H)

0.75V(p-p)

(H)

0.9V(p-p)

0.78V(p-p)

Q301

out

5ms/DIV.

0.5V/DIV.

5ms/DIV.

20V/DIV.

9.0

-15.0

15.0

5.0

32.0

4.1

2.4

3.5

9.0

2.3

4.5

5.0

4.5

9.0

3.0

2.4

43VJ22P

SIGNAL-VCD/IF/V.OUT

[SHEET-2/4]

(H)

0.8V(p-p) (H)

(H)

0.6V(p-p)

(H)0.7V(p-p)

(H)

0.53V(p-p)

(H)0.75V(p-p)

(H)0.9V(p-p)

0.78V(p-p)

Q301

out

5ms/DIV.

0.5V/DIV.

5ms/DIV.

20V/DIV.

9.0

-15.0

15.0

5.0 32.04.14.1

2.4

3.5

3.5 3.5

9.0

2.3

54.5

5.0

54.5

09.0

3.0

2.4

43VJ22P

SIGNAL-AV/AUDIO

[SHEET-3/4]

9.0

5.0

13.0

30.0

8.8

12.9

1.9

4.5

4.1

8.3

2.1

6.9

4.1

9.0

4.1

5.2

6.6

4.1

3.9

4.1

5.2

09.0005.00

00 13.00 30.08.8 12.91.9 1.901.91.9

4.5

4.1

8.3

2.1

6.9

4.1

9.0

4.1

5.2

6.6

4.1

3.9

4.1

5.2

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