FUNAI LCD-B1504 Manual de usuario

15″/20″COLOR LCD TELEVISION

LCD-B1504

LCD-B2004

The LCD panel is manufactured to provide many years of useful life.

Occasionally a few non active pixels may appear as a tiny spec of color.

This is not to be considered a defect in the LCD screen.

4-3 L4101DC

Wiring Diagram

Fig. D3

T402 CN101A CN102A

CN31A

CN31B

CN801 CN802

To Speaker

To LCD Module

Assembly

To LCD Module Assembly

Function CBA

Main CBA

LCD Main CBA

To Speaker

CN103A

CN101B

CN320A CN321A

CN102B CN103B

T401

4-6 L4201DC

Cable Wiring Diagram

Fig. D3

T1402 CN101A CN102A

CN53

CN405

CN1401

CN51

CN51A

CN801 CN802

To Speaker

To LCD Module Assembly

Function CBAIR Sensor CBA

Inverter CBA Main CBA

LCD Main CBA

To Speaker

CN103A

CN101B

CN310A CN311A CN313A

CN102B CN103B

T1401

T1404

To LCD

Module

Assembly

To LCD

Module

Assembly

T1403

5-1 L4100INT

HOW TO INITIALIZE THE LCD TELEVISION

To put the program back at the factory-default,

initialize the LCD television as the following procedure.

How to initialize the LCD television:

1. Turn the power on. (Use main power on the TV

unit.)

2. To enter the service mode, press [STANDBY], [2],

[7], [1], and [MUTE] buttons on the remote control

unit in that order within 5 seconds.

- To cancel the service mode, press [STANDBY]

button on the remote control.

3. To initialize the LCD television, press “DISPLAY”

button on the remote control unit.

4. Confirm "FF" indication on the upper right of the

screen.

6-1 L4101EA

ELECTRICAL ADJUSTMENT INSTRUCTIONS

General Note:

“CBA” is abbreviation for “Circuit Board Assem-

bly.”

NOTE:

Electrical adjustments are required after replacing

circuitcomponentsandcertainmechanicalparts.Itis

importantto perform these adjustments only after all

repairs and replacements have been completed.

Also, do not attempt these adjustments unless the

proper equipment is available.

Test Equipment Required

1. DC Voltmeter

2. Pattern Generator

3. Color Analyzer

How to Set up the Service mode:

1. Turn the power on. (Use main power on the TV

unit.)

2. Press [STANDBY], [2], [7], [1], and [MUTE] buttons

on the remote control unit in that order within 5

seconds.

- To cancel the service mode, press [STANDBY]

button on the remote control.

1. Initial Setting

General

Enter the Service mode.

Set the each initial data as shown on table 1 below.

Table 1: Initial Data

ITEM BUTTON

(on the remote

control)

DATA VALUE

LCD-

B1504 LCD-

B2004

BRT(PAL)

MENU →1

130 134

CNT(PAL) 174 174

CLR-R(PAL) 78 74

CLR-B(PAL) 78 74

SHR(PAL) 143 143

S-BRT(PAL)

MENU →2

130 134

S-CNT(PAL) 174 174

S-CLR-R(PAL) 78 74

S-CLR-B(PAL) 78 74

S-SHR(PAL) 143 143

C-BRT(PAL)

MENU →3

134 134

C-CNT(PAL) 122 132

C-CLR-R(PAL) 156 154

C-CLR-B(PAL) 156 154

C-SHR(PAL) 143 143

BRT(SECAM)

MENU →4

130 134

CNT(SECAM) 174 174

CLR-R(SECAM) 78 74

CLR-B(SECAM) 78 74

SHR(SECAM) 143 143

S-BRT(SECAM)

MENU →5

130 134

S-CNT(SECAM) 174 174

S-CLR-R(SECAM) 78 74

S-CLR-B(SECAM) 78 74

S-SHR(SECAM) 143 143

C-BRT(SECAM)

MENU →6

134 134

C-CNT(SECAM) 122 132

C-CLR-R(SECAM) 156 154

C-CLR-B(SECAM) 156 154

C-SHR(SECAM) 143 143

BRT(NTSC)

MENU →7

134 134

CNT(NTSC) 172 174

CLR-R(NTSC) 78 70

CLR-B(NTSC) 78 70

TNT(NTSC) 148 148

SHR(NTSC) 143 143

S-BRT(NTSC)

MENU →8

134 134

S-CNT(NTSC) 172 174

S-CLR-R(NTSC) 78 70

S-CLR-B(NTSC) 78 70

S-TNT(NTSC) 148 148

S-SHR(NTSC) 143 143

6-2 L4101EA

2. +B Adjustment

Purpose: To obtain correct operation.

Symptom of Misadjustment: The picture is dark and

the unit does not operate correctly.

Note: TP401(+B), TP300(GND), VR649 --- Main CBA

1. Connect DC Volt Meter to TP401 and

TP300(GND).

2. Adjust VR649 so that the voltage of TP401

becomes +13.0±0.3V DC [LCD-B1504] or

+21.0±0.3V DC [LCD-B2004].

3. Flicker Adjustment

Adjustment Point: R977 (LCD Main CBA)

1. Enter the Service mode.

2. Press “2” button on the remote control unit.

The following screen appears.

3. If Flicker Adjustment is not fit, the screen become

the following.

4. Adjust R977 so that flash stops.

C-BRT(NTSC)

MENU →9

134 134

C-CNT(NTSC) 122 132

C-CLR-R(NTSC) 156 154

C-CLR-B(NTSC) 156 154

C-TNT(NTSC) 148 148

C-SHR(NTSC) 143 143

BRIGHT 0 0 0

NORMAL 0 40 65

DARK 0 95 98

COR(C/D/S-1) VOL. p→1 131 131

COG(C/D/S-1) VOL. p→2 131 131

COB(C/D/S-1) VOL. p→3 131 131

DR(C/D/S-1) VOL. p→4 145 145

DG(C/D/S-1) VOL. p→5 143 143

DB(C/D/S-1) VOL. p→6 140 140

SBR(C/D/S-1) VOL. p→70 0

SBB(C/D/S-1) VOL. p→90 0

C-COR(C/D/S-2) VOL. p→1 131 131

C-COG(C/D/S-2) VOL. p→2 131 131

C-COB(C/D/S-2) VOL. p→3 131 131

C-DR(C/D/S-2) VOL. p→4 145 145

C-DG(C/D/S-2) VOL. p→5 143 143

C-DB(C/D/S-2) VOL. p→6 140 140

C-SBR(C/D/S-2) VOL. p→70 0

C-SBB(C/D/S-2) VOL. p→90 0

VOL. p

FF FF

LAST POWER OFF OFF

SYSTEM PAL-I PAL-I

NCM ON ON

ASPECT OFF OFF

RUSSIAN OFF OFF

Test Point Adj. Point

TP401 (+B)

TP300 (GND) VR649

M. EQ. Spec.

DC Voltmeter +13.0±0.3V DC [LCD-B1504]

+21.0±0.3V DC [LCD-B2004]

ITEM BUTTON

(on the remote

control)

DATA VALUE

LCD-

B1504 LCD-

B2004

R977

LCD Main CBA

FLASH

(Go and Off)

7-1

System Control Block Diagram

L4101BLS

BLOCK DIAGRAMS

KEY-IN-144

CN31B

KEY-IN-233

RCV30

REMOTE

SENSOR

CN31A

FUNCTION CBA

KEY-IN-144

CN51A

KEY-IN-233

IR SENSOR CBA

CLN53 RCV51

D51

RCV-IN33 REMOTE

SENSOR

IC151

(MICRO CONPUTER)

KEY-IN-144

CN103B CN103A

RCV-IN11

BACKLIGHT-SW

BACKLIGHT-ADJ

P-ON-H66

PROTECT-113 13

PROTECT-214 14

VOLUME77

A-MUTE(NU)

INPUT-099

INPUT-110 10

S-SW15 15

SCL18 18

SDA19 19

KEY-IN-1

RCV-IN

RESET

P-ON-H

PROTECT-1

PROTECT-2

VOLUME

SDA

SCL

INPUT-0

INPUT-1

S-SW

SCL

SDA

X151

10MHz

XIN

XOUT

TO POWER SUPPLY

BLOCK DIAGRAM

TO AUDIO

BLOCK DIAGRAM

BACKLIGHT-SW

BACKLIGHT-ADJ

P-ON-H

PROTECT-1

PROTECT-2

VOLUME

A-MUTE

INPUT-0

INPUT-1

S-SW

SCL

SDA

MAIN CBALCD MAIN CBA UNIT

KEY-IN-255

KEY-IN-2

CN51

CN53

RESET

IC153

AL+5V

CN102B CN102A

EEP-SDA 2

EEP-SCL 1

BUS-OPEN 4

CN105(NO CONNECTION)

IC152

(MEMORY)

SCL 6

SDA 5

26BUS-OPEN(NU)

AL+5V

CN105 IS

USED FOR

ADJUSTMENT

AT FACTORY

SCLK 3

BUSY 2

RXD 4

CN104(NO CONNECTION)

EPM(NU) 6

CE(NU) 5

CNVSS 9

RESET 8

TXD 10

DVP-SOUT

DVP-CS

DVP-SIN

MPSEL-0

DVP-CLK

DVP-RESET-PC

FBIN

BUS-OPEN 2

DVP-RESET-PC

DVP-CLK-PC

CN301(NO CONNECTION)

DVP-SOUT-PC

DVP-SIN-PC

DVP-CS-PC

MPSEL-0 3

Q156

3.3V<-->5V

CONVERTER

Q155

3.3V<-->5V

CONVERTER

Q152

3.3V<-->5V

CONVERTER

Q154

3.3V<-->5V

CONVERTER

Q153

3.3V<-->5V

CONVERTER

REG+3.3V

2DVP-SOUT

2DVP-CS

2DVP-CLK

42DVP-SIN

H-SYNK

2DVP-RESET

AFT-IN11 11

P-ON-H222 22

AFT-IN

P-ON-H2

PROTECT-3 PROTECT-316 16

BUS-OPEN(NU)

20 20

23 SLOW-SW19 19

SP-MUTE20 20

FBIN25 25

SLOW-SW-IN

SP-MUTE 84INSEL-MUTE

87 RAPID-SW18 18

RAPID-SW-IN

INSEL-MUTE

17 17

P-ON-L(NU)24 24

RGB-CONTROL(NU)

26 26

P-25V-ON23 23

NICAM-RESET

22 22

P-ON-L(NU)

RGB-CONTROL(NU)

P-25V-ON

SC-VIDEO-MUTE

NICAM-RESET

S/C-JACK-MUTE

16 16

34 EEP-SCL

EEP-SDA S/C-JACK-MUTE

PROTECT-3

P-ON-H2

SP-MUTE

INSEL-MUTE

NICAM-RESET

FBIN

RAPID-SW

SLOW-SW

S/C-JACK-MUTE

TO IF/VIDEO

BLOCK DIAGRAM

AFT-IN

BUSY-FLASH

SCLK-FLASH

RXD-FLASH

CE-FLASH(NU)

EPM-FLASH(NU)

CNVSS

TXD-FLASH

IC301

(LCD DRIVE /

SIGNAL PROCESS)

RCV-IN77

KEY SWITCH

P-25V-ON

D30

STAND BY

AL+5V

INVERTER CBA

CN1401

BACKLIGHT-SW

10 10

BACKLIGHT-ADJ

11 11

CN405

PROTECT-112 12

P-ON-H13 13

TO LCD BACKLIGHT

BLOCK DIAGRAM (B)

FUNCTION CBA

BACKLIGHT-ADJ

BACKLIGHT-SW

PROTECT-1 TO LCD BACKLIGHT

BLOCK DIAGRAM (A)

BACKLIGHT-SW

BACKLIGHT-ADJ

PROTECT-1

P-ON-H

Comparison Chart of

Models & Marks

Model Mark

LCD-B1504

LCD-B2004 A

STAND BY

7-2

IF/Video Block Diagram

L4101BLIF

JK751

VIDEO-Pb

VIDEO-Y

VIDEO-Pr

AUDIO

BLOCK DIAGRAM

CN103A

INPUT-0(INV)

INPUT-1(INV)

TU1

SIF

SDA

SCL

SIF

MAIN CBA

VIDEO SIGNAL AUDIO SIGNAL

TO AUDIO BLOCK

DIAGRAM

Q734

JK722

VIDEO1

-IN

JK721

S-VIDEO

-IN

TO SYSTEM

CONTROL

BLOCK

DIAGRAM

LCD BLOCK

DIAGRAM (A),(B)

CN103B

IC781 (INPUT SELECT)

Q754

Q702

Q701 SW

CONTROL

911

INPUT-0

INPUT-1

SYSTEM CONTROL

BLOCK DIAGRAM

Q872

Q871

Q753

Q752

Q751

(TUNER UNIT)

BUFFER

WF7

WF2

WF3

WF6

WF5

WF4

CVBS18

S-VIDEO-C5 S-VIDEO-Y6

VIDEO-Pr1 VIDEO-Y2 VIDEO-Pb3

CVBS29

VIDEO-IN

VIDEO-OUT

SLOW-SW

16RAPID-SW

AFT

VIDEO

Q781

BUFFER

WF8

SDA

SCL

S-SW

AUDIO

AFT-IN

S/C-JACK-MUTE

FBIN

Q11

SLOW-SW

Q731

RAPID-SW

Q730

Q791

Q744

Q792

AL+5V

Q743

BUFFER

7-3

Audio Block Diagram

L4101BLA

MAIN CBA

AUDIO SIGNAL

VOLUME

TO SYSTEM

CONTROL

BLOCK

INPUT-0(INV)

INPUT-1(INV)

SCL

SDA

IC871 (INPUT SELECT)

SW CTL

9 10

dBX/MNR

PANDA1 FM/AM

PRESCALE

I2C READ

AUTOMATIC

SOUND

SELECT

NICAM

PRESCALE

L-CH

R-CH

VOLUME

AGC DEMODULATOR

A/D

CONVERTER

I2C

DECORDER

TO IF/VIDEO

BLOCK

DIAGRAM

TUNER

AUDIO1

AUDIO2

TUNER

AUDIO1

AUDIO2

(L-CH)

(R-CH)

IC831 (SOUND PROCESSOR)

AUDIO1(L)

-IN

JK723

SIF

JK724

AUDIO1(R)

-IN

IC801(AUDIO AMP)

VOLUME

AMP

MUTE

/STANDBY

CONTROL

(R-CH)

(L-CH)

2 5

JK801

HEADPHONE

JACK

CN801

SP-R 1

GND 2

SP802

SPEAKER

L-CH

CN802

SP-L 1

GND 2

TO IF/VIDEO

BLOCK

DIAGRAM

WF1

CLN802

CLN801

SP801

SPEAKER

R-CH

TO SYSTEM

CONTROL

BLOCK

DIAGRAM NICAM-RESET

AUDIO

RESET

INH

JK751

AUDIO2(L)

-OUT

AUDIO2(R)

-OUT

AUDIO2(L)

-IN

AUDIO2(R)

-IN

Q732 Q733

Q741

Q742 AL+5V

INSEL-MUTE

S/C-JACK-MUTE

SP-MUTE

DEEMPHASIS

SOUND

SELECT

A/D

CONVERTER

SCART DSP

INPUT SELECT SCART

PRESCALE

D/A

CONVERTER VOLUME

SCART1 OUTPUT SELECT SCART1

CHANNEL

MATRIX

QUASI-PEAK

CHANNEL MATRIX

I2C READ

QUASI-PEAK

DETECTOR

LOUD SPEAKER

CHANNEL MATRIX

AVC

D/A

CONVERTER

STANDERD

AND SOUND

DETECTION

7-4 L4101BLLCD

LCD Block Diagram ( A )

LCD MAIN CBA UNIT

VIDEO SIGNAL

IC301 (LCD DRIVE / SIGNAL PROCESS)

IF/VIDEO

BLOCK

DIAGRAM

CN103A

CN103B

182

181

180

179

175

174

173

ODDINV

EVENINV

STH1

POL

STV1

CLKV

CLKH1

LCD MODULE

VREF(4) 25

VREF(0) 29

VREF(1) 28

VREF(2) 27

VREF(3) 26

VREF(7) 21

VREF(5) 23

VREF(6) 22

VREF(8) 20

VREF(9) 19

104

105

103

VCOM 35

VCOM 36

PANEL+10.8V

R977

VCOM

CN320A

169

168

167

166

165

161

160

159

158

155

154

153

152

151

150

146

145

LCD MODULE

TP322

TP323

TP318

TP319

TP320

TP321

143

142

141

140

139

135

134

133

132

131

130

129

128

127

123

122

121

120

119

116

115

114

113

106

TP316

TP317

TP312

TP313

TP314

TP315

CN321A

OR(3)

32 OR(4)

31 OR(5)

OR(0)

35 OR(1)

34 OR(2)

OG(3)

25 OG(4)

24 OG(5)

OR(0)

28 OG(1)

27 OG(2)

OB(3)

18 OB(4)

17 OB(5)

OB(0)

21 OB(1)

20 OB(2)

ER(3)

5ER(4)

4ER(5)

ER(0)

8ER(1)

7ER(2)

EG(3)

47 EG(4)

46 EG(5)

EG(0)

50 EG(1)

49 EG(2)

EB(3)

40 EB(4)

39 EB(5)

EB(0)

43 EB(1)

42 EB(2)

CVBS1 8

CVBS2 9

S-VIDEO-C 5

S-VIDEO-Y 6

VIDEO-Pb 3

VIDEO-Pr 1

VIDEO-Y 2

VCOM 3

VCOM 4

CN321A

84 85

X301

54MHz

XIN XOUT

CLEAR 15

CLKV 14 VCOM

CONTROL

Q971

IC981,

CLEAR

STV1 13

LP 44

CN320A

POL 43

HMS1-E 10

CLKH 12

STH1 42

HMS1-O 14

WF11

WF10 WF12WF9

VIDEO

SIGNAL

PROCESS

NTSC/PAL

SEPARATION

BURST

LOCKED

OUTPUT

CONTROL

CHROMA

DECODER

SECAM PDM

RCO

PANEL

SIGNAL

PROCESS

SIGNAL

PROCESS

INPUT

CONTROL

CVBS

A/D

187

WF14WF13

Comparison Chart of

Models & Marks

Model Mark

LCD-B1504

LCD-B2004 A

R905

R907

R901 R904

R902

R997

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