JVC LT-26X506, LT-32X506 Schematic

SCHEMATIC DIAGRAMS

LCD FLAT TELEVISION

YA33320058

LT-26X506/S, LT-32X506

CD-ROM No.SML200510

/S

BASIC CHASSIS

FU

No.YA333

2005/10

LT-26X506/S, LT-32X506

/S

STANDARD CIRCUIT DIAGRAM

NOTE ON USING CIRCUIT DIAGRAMS

1.SAFETY

The components identified by the symbol and shading are critical for safety. For continued safety replace safety ciritical components only with manufactures recommended parts.

2.SPECIFIED VOLTAGE AND WAVEFORM VALUES

The voltage and waveform values have been measured under the following conditions.

(1)Input signal : Colour bar signal

(2)Setting positions of each knob/button and variable resistor

(3)Internal resistance of tester

(4)Oscilloscope sweeping time

(5)Voltage values

Since the voltage values of signal circuit vary to some extent according to adjustments, use them as reference values.

: Original setting position when shipped

: DC 20kΩ/V

: H

: V

: Othters

: All DC voltage values

20µs / div

5ms / div

Sweeping time is specified

3.INDICATION OF PARTS SYMBOL [EXAMPLE]

In the PW board

: R209

R209

Type

No indication

MM PP MPP

MF TF BP

TAN

(3)Coils

No unit

Others

(4)Power Supply

Respective voltage values are indicated

(5)Test point

: Test point

(6)Connecting method

: Ceramic capacitor : Metalized mylar capacitor

: Polypropylene capacitor : Metalized polypropylene capacitor : Metalized film capacitor : Thin film capacitor : Bipolar electrolytic capacitor : Tantalum capacitor

: [µH]

: As specified

: B1

: 9V

: Connector

: Receptacle

: Only test point display

: Wrapping or soldering

: B2 (12V

: 5V

)

4.INDICATIONS ON THE CIRCUIT DIAGRAM

(1)Resistors

Resistance value

No unit : [Ω]

K M

Rated allowable power No indication : 1/16 [W]

Others : As specified

Type

No indication

OMR

MFR

MPR

UNFR

FR

Composition resistor 1/2 [W] is specified as 1/2S or Comp.

(2)Capacitors

Capacitance value

1 or higher : [pF]

less than 1

Withstand voltage

No indication : DC50[V]

Others : DC withstand voltage [V]

AC indicated Electrolytic Capacitors

47/50[Example]: Capacitance value [µF]/withstand voltage[V]

: [kΩ]

: [MΩ]

: Carbon resistor

: Oxide metal film resistor

: Metal film resistor

: Metal plate resistor

: Uninflammable resistor

: Fusible resistor

: [µF]

: AC withstand voltage [V]

(7)Ground symbol

: LIVE side ground

: ISOLATED(NEUTRAL) side ground

: EARTH ground

: DIGITAL ground

5.NOTE FOR REPAIRING SERVICE

This model's power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : ( ) side GND and the ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be taken for the following points.

(1)Do not touch the LIVE side GND or the LIVE side GND and the ISOLATED(NEUTRAL) side GND simultaneously. if the above caution is not respected, an electric shock may be caused. Therefore, make sure that the power cord is surely removed from the receptacle when, for example, the chassis is pulled out.

(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL side GND or never measure with a measuring apparatus measure with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time. If the above precaution is not respected, a fuse or any parts will be broken.

Since the circuit diagram is a standard one, the circuit and circuit constants may be subject to change for improvement without any notice.

NOTE Due improvement in performance, some part numbers show in the circuit diagram may not agree with those indicated in the part list. When ordering parts, please use the numbers that appear in the Parts List.

)

2-1(No.YA333)

USING P.W. BOARD

P.W.B ASS’Y name

MAIN P.W. BOARD

DIGITAL SIGNAL P.W BOARD

POWER P.W. BOARD

LED P.W. BOARD

KEY P.W. BOARD

LT-26X506/S

QAL0753-001

QAL0754-001

QAL0756-001

QAL0758-001

QAL0759-001

LT-32X506/S

QAL0755-001

QAL0757-001

SEMICONDUCTOR SHAPES

TRANSISTOR

BOTTOM VIEW FRONT VIEW TOP VIEW

CHIP TR

E C B

ECB

IC

BOTTOM VIEW FRONT VIEW TOP VIEW

OUT

E

IN

IN OUTE

B

(G)E(S)C(D)

1 N

ECB

1

1 N

C

BE

N

CHIP IC

TOP VIEW

1

N

1

N

(No.YA333)2-2

WIRING DIAGRAM

W

TOP

LCD PANEL UNIT

TOP

7

101 4115

CN3 CN4

1

CN2

LCD PANEL UNIT

1

4

1

3

1

CP1802

CP708

J207

51

CP706

1

KEY PWB

LED PWB

CN1

POWER CORD

TOP

FU1 250V/5A

POWER PWB

CP701

7

1

CP705

5

1

CP1801

15

MAIN P

2-3(No.YA333)

1

DIGITAL SIGNAL PWB

LCD PANEL UNIT

CP1012

10

TOP

CP1008

1

12

CP1005 CP1009 CP1014

11018

17

TOP

1 112 1 10 718

CW1002 CW703 CW501 CW502

2

8

1

5

1

PWB

SPEAKER (R) SPEAKER (L)

TU401

U/V TUNER

CP602

CP601

3

1

2

1

(No.YA333)2-4

0

[

]

C

E

A

R

A

BLOCK DIAGRAM

J502

INPUT1

J503

INPUT2

J501

INPUT3

Component

S terminal

Y

C

CVBS

AUDIO L/R

S terminal

Y

C

CVBS

AUDIO L/R

CVBS

AUDIO L/R

MAIN PWB

Y

Cb

Cr

V1SY

V1SC

V1CV

A1-L/R

V2SY

V2SC

V2CV

A2-L/R

V3CV

A3-L/R

TU401

TUNER

V1Y

V1CB

V1CR

TU CV

SIF

STEREO

IC501

VIDEO/AUDIO SW

LPF

SAP BPF

L/R LPF

SUB LPF

SAP LPF

MTS DECODE

MAIN

SUB

SAP

Y OUT/ SWV_SY

C OUT/ SWV_C

YIN

V OUT/SWV_CV

SWA_L/R

IC401

DEEMPHASIS

SWV_Y

MATRIX

L/R

IC502

VIDEO SW

SWV_SY

V_CB

V_CR

AUDIO L/R

J505

Audio Out

AC 120V, 60Hz

2-5(No.YA333)

LF1

FU1

LF2

BD1

POWER PWB

T1 T2 T3

VOLTAGE

FEED BACK

PC1, PC2, PC3

L/R

U1, U2 U3, U5

POWER

POWER ON/OFF

SW

5V OUT

12V OUT

24V OUT

IC101

A-D

CONVE

CB-IN

CR-IN

Y-IN

C-IN

/VID

CVBS-IN

DIGITAL SIGN

CB [8]

NTS

8

CR

/

AGC/SURROUND/AUDIO CONTROL

CB

[8]

AGC VOL1

IC6521

SURROUND

PROCESS

IC603

R

AUDIO OUT (R)

SPEAKER(L)

SPEAKER(R)

VOL2TONE

VOL_L/R

IC604

AUDIO OUT (L)

L

V

R

G

B

Y

MAIN CPU

/CLOSED CAPTION

DECODE

IC701

IC602

H.P AMP

KEY 1,2

RMT

HP_L/R

OPERATION

SW

S201~S207

KEY PWB

IR701

IR

RECEIVER

LED PWB

J207

HEADPHONE

IC1002

SYNC SEP.

010

-D VERT

V

CR [8]

H

IC1000

TSC 3D YC SEPARATER

IDEO PROCESSOR (VCD)

/OSD SW

/MULTI SCREEN

/A-D CONVERTER

Y

RGB

DSR[8]

DSG[8]

DSB[8]

DSHD

DSVD

DSCLK DSCLK

DSDE

R

G

B

Hsync

Vsync

DCLK

Enable

IC1001

DSR[8]

DSG[8]

DSB[8]

DSHD

DSVD

DSDE

RGB PROCESS

SCR[8]

SCG[8]

SCB[8]

Hout

Vout

DCLK1

Enable

R

G

B

Hsync

Vsync

DCLK

Enable

IC1015

Red [8]

Green [8]

Blue [8]

Hsync

Vsync

Clock

Enable

LVDS FORMAT CONVERSION

TX3+/TX3-

TX2+/TX2-

TX1+/TX1-

TX0+/TX0-

TXC+/TXC-

LCD PANEL

AL PWB

(No.YA333)2-6

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM (1/5) SHEET1

SWA-R

VOL-L

SHEET1,5

SHEET2,4,5

SHEET1

SHEET2

SHEET1,5

SHEET2

SWA-L

SDA

SCL

DOWN-MUTE

HP-MUTE

SWA-R

HP-VOL

NJW1173V-TE1

VOL-R

SHEET1

SHEET2

SHEET1

S-MUTE

DOWN-MUTE

VOL-R

SHEET2

SHEET1,5

SWA-L

DOWN-MUTE

SHEET1

VOL-L

SHEET2

2-7(No.YA333)

R

L

MAIN PWB ASS'Y (1/5)

QAL0753-001

(No.YA333)2-8

MAIN PWB CIRCUIT DIAGRAM (2/5) SHEET2

SHEET2

SHEET1

SHEET2

SHEET5

TO OPE

KEY PWB ASS'Y J207 (SHEET17)

SHEET2

DIGITAL SIGNAL

PWB ASS'Y(1/4)

CP1005

(SHEET6)

SHEET2

TO DIGITAL

5V_SDA

5V_SCL 7

PG3 PG2 PG1 PG0

PGCLK

PGEN

TO INVERTER

24V 24V 24V 24V

24V GND GND GND GND GND

NC

CCFL A-DIMMER D-DIMMER

SHEET5

SHEET2

SHEET5

SHEET1,2,4,5

8

6 5 4 3 2 1

1 2 3 4 5 6 7 8

9 10 11 12 13 14

1 2 3 4 5 6 7 8 9

10

SHEET1

SHEET2

A-DIMMER

S1-TIN2

PG0

PG1

PG2

PG3

NC

HP-DET

CCFL

PNL-PWR

D-DIMMER

NC

HP-VOL

DATA1

S1-TIN1

D-TIN

PWR-LED-B

PWR-LED-D

NC

VSS

RMT-IN

XIN

SYNC-IN

LVDS-PWR

XOUT

VDD

PGCLK

THERMAL

TV-PWR

NC

PGEN

AFT

IIC DATA

NC

IIC CLOCK

AV-RST

BL

B

G

R

HD

VD

NC

CVIN

FILTER

RESET

KEY1

KEY2

PST3445UR

2-9(No.YA333)

SHEET2

SHEET3

SHEET4

SHEET2

TO LED

LED PWB ASS'Y CP706 (SHEET16)

MAIN PWB ASS'Y (2/5)

QAL0753-001

FOR ENGINEERING ONLY

FLASH WRITE

SHEET5

PEX7

PEX6

PEX5

PEX4

SDA

CLK

ADD

PEX0

PEX1

PEX2

PEX3

SHEET5

SHEET1,2,4,5

BUS MONITOR

SHEET1

SHEET5

SHEET1

(No.YA333)2-10

MAIN PWB CIRCUIT DIAGRAM (3/5) SHEET3

TO POWER

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15

POWER PWB ASS'Y(3/3) CN2 (SHEET12,15)

TO POWER

1 2 3 4

POWER PWB ASS'Y(3/3) CN4 (SHEET12,15)

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15

1

2

3

4

12V 12V

12V GND GND GND

5V 5V

5V GND GND GND

STB5V

GND

STB-SW

1 2 3 4

GND

5 6 7 8 9

10

GND

11 12 13

GND

14 15

1

24V 2 3 4 SGND

SGND GND

M5V0

GND

TV-PWR

P12V

SHEET2

2-11(No.YA333)

MAIN PWB ASS'Y (3/5)

QAL0753-001

TO DIGITAL

GND

1

2

3

4

GND

5

P3V3

LCD5V0

GND

P5V0

P12V

P3V3

GND

M5V0

12 11 10

9 8 7 6 5 4 3 2 1

DIGITAL SIGNAL PWB ASS'Y(1/4)

1

2

3

4

5

P5V0

GND

P30V

8

Dr-C

7

Ipk

6

Vcc

5

Comp

SW-C

SW-E

TC

GND

1

2

3

4

GND

CP1008 (SHEET6)

1

GND

2

3

P9V0

1

GND

2

3

TU5V0

1 2

GNDGND

(No.YA333)2-12

V

T

S

MAIN PWB CIRCUIT DIAGRAM (4/5) SHEET4

AFT

SHEE

SCL

SDA

TUC

SIF

2-13(No.YA333)

SHEET4

SHEET1,2,4,5

SHEET4

EET2

UCV

SHEET5

TU-R

TU-L

SCL

SDA

SIF

MAIN PWB ASS'Y (4/5)

QAL0753-001

(No.YA333)2-14

1

MAIN PWB CIRCUIT DIAGRAM (5/5) SHEET5

1

D-TIN

V1Y

SHEET2

V3CV

A3-L

VIDEO1

V(Y)

L(W)

R(R)

G1G2G3 7

2

3

GND

CY

34

56

12

GND

7

8

10

11

9

GND

V1CB

V1CR

GND

S1-TIN1

SHEET2

V1SC

V1SY

GND

V1CV

A1-L

A1-R

GND

S1-TIN2

V2SC

SHEET2

V2SY

A3-R

SHEET5

V2SC

V2CV

A2-L

V1SY

A2-R

V1SC

SHEET5

V1CV

A1-L

A1-R

GND

Cout

VIDEO2

VIDEO3

V(Y)

L(W)

R(R)

V(Y)

L(W)

R(R)

CY

34

56

12

GND

7

8

10

11

9

1

G1

2

G2

3

G3

GND

V2SY

GND

V2CV

A2-L

A2-R

GND

V3CV

A3-L

A3-R

Yout

SHEET5

Vout

SHEET5

SHEET1,5

SHEET2

2-15(No.YA333)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 17

MM9V

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

GND

TU-L

TUCV

TU-R

Cout

Yout

SWV-C

SWV-SY

Vout

SWA-L

SWA-R

GND

SCL

SDA

SHEET5

SHEET4

P9V0

SHEET5

SHEET1,2,4,5

MM9V

GND

SHEET2,5

SHEET1,5

SHEET5

SHEET2

SWV-SY

SHEET5

V1CB

SHEET2

P5V0 GND

SHEET5

Y-SW

V1CR

GND

SWV-C

CCD-R CCD-G CCD-B CCD-YS

SHEET2

HD-IN VD-IN LVDS-PWR SWV-CV

SWV-Y V-CB V-CR

AVRESET

GND

10

11

12

13

14

15

16

GND

89

7

6

5

4

3

2

1

7 6 5 4 3 2 1

10

9 8 7 6 5 4 3 2 1

GND

DIGITAL SIGNAL PWB ASS'Y(1/4) CP1014 (SHEET6)

C-IN

7

GND

6

R-IN

5

G-IN

4

B-IN

3 2

YS-IN1

1

GND

TO DIGITAL

HD

10

VD

9

LVDS-PWR

8

CVBS

7

GND

6

Y-IN

5

CB-IN

4

CR-IN

3

GND

2

AVRESET

1

DIGITAL SIGNAL PWB ASS'Y(1/4) CP1009 (SHEET6)

V1Y

SWV-Y

V-CB

V-CR

GND

SHEET5

SWA-L

SWA-R

EXT-MUTE

P9V0

GND

GND GND

GND

P9V0

GND

SWV-CV

SHEET2,5

GND

AUDI O OUT

1

L

G1

2

R

GND

G2

MAIN PWB ASS'Y (5/5)

QAL0753-001

(No.YA333)2-16

W

8

DIGITAL SIGNAL PWB CIRCUIT DIAGRAM (1/4) SHEET6

MAIN PWB

ASS'Y(3/5)

CW1002

(SHEET3)

PNL-PWR

MAIN PWB

ASS'Y(5/5)

CW502

(SHEET5)

MAIN PWB ASS'Y(5/5)

CW501

(SHEET5)

C-IN

GND

R-IN

G-IN

B-IN

YS-IN1

GND

HD VD

LVDS-PWR

CVBS

GND

Y-IN CB-IN CR-IN

GND

AVRESET

C-IN

R-IN G-IN B-IN YS-IN1

HD-IN VD-IN LVDS-PWR CVBS

Y-IN CB-IN CR-IN

AVRESET

SHEET7

SHEET7 SHEET6

SHEET7

SHEET8,9

5V_SDA 5V_SCL

SCL SDA

SHEET6,7

SHEET7,8,9

SHEET8

SHEET6

SHEET

SCDCK

HMS1

LVDS-P

MAIN PWB ASS'Y(2/5)

(SHEET2)

2-17(No.YA333)

CW703

5V_SDA 5V_SCL

PG3

PG2

PG1

PG0

PGCLK

PGEN

SHEET8

SHEET6,7

5V_SCL

5V_SDA

JVC LT-26X506, LT-32X506 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

USING P.W. BOARD

SEMICONDUCTOR SHAPES

WIRING DIAGRAM

BLOCK DIAGRAM

CIRCUIT DIAGRAMS