Funai LCD-C32B7 Service Manual

SERVICE MANUAL

This service manual shows only the differences between the model LCD-C32B7 and the original model LCD-C3206. All other information is described in the service manual of the model LCD-C3206.

32″ COLOR LCD TELEVISION

LCD-C32B7

TABLE OF CONTENTS

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Schematic Diagrams / CBA’s and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Different parts from the original model (LCD-C3206) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

SUPPLEMENT

1-1

System Control Block Diagram

L5925BLS

BLOCK DIAGRAMS

IC101

(TV MICRO CONTROLLER)

IC103 (MEMORY)

AUDIO-MUTE

123

VOLUME420

SCL14 10

SDA15 9

KEY SWITCH

CN104ACN104B

CN111

BACKLIGHT-SW

13 11

BACKLIGHT-ADJ

12 12

CN101ACN101B

P-ON-H118 6

P-ON-H217 7

P-ON-H316 8

CN102ACN102B

RTC-IN

KEY-IN144

CN11B CN11A

17

LED-251LED-1

SDA

SCL

SDA

SCL

SDA

SCL

WP

SCL

SDA

SCL

BUS-OPEN

37

282726

AUDIO-MUTE

VOLUME

77

1

567

KEY-IN1

93

AUDIO-MUTE

VOLUME

P-ON-H159P-ON-H2

P-ON-H3

56

57

P-ON-H1

P-ON-H2

P-ON-H3

BACKLIGHT-SW

BACKLIGHT-ADJ

52

22

AL+5V

XIN

XOUT

11

13

RESET

X100

RESET

10MHz

OSC

10

IC102

45

TO AUDI O

BLOCK DIAGRAM

TO VIDEO SELECTOR

BLOCK DIAGRAM

BACKLIGHT-ADJ

BACKLIGHT-SW

TO DIGITAL

SIGNAL PROCESS

BLOCK DIAGRAM

TO POWER SUPPLY

BLOCK DIAGRAM

MAIN CBADIGITAL MAIN CBA UNIT

Q508

DRIVE

Q507

DRIVE

FUNCTION CBA

Q463

DRIVE

Q462

DRIVE

TO

INVERTER

BLOCK

DIAGRAM

REMOTE

SENSOR

D52D51

POWER POWER

REMOTE82

LED-235

LED-144

RCV51

CN15

LED CBA

1-2

Audio Block Diagram

L5925BLA

AUDIO SIGNAL

SP801

SPEAKER

L-CH

CLN52

CN16CN54 CN52

CN53

SP(L) 2

SP-GND 1

SP802

SPEAKER

R-CH

CLN53

SP(R) 2

SP-GND 1

SP(L)44

SP(R)33

HDMI

AUDIO(L)-IN

HDMI

AUDIO(R)-IN

JK201

JK202

HDMI(L)

CN103B CN103A

HDMI(R)

TU31

(TUNER UNIT)

SIF

IC851

(SOUND PROCESSOR)

SDA

L-CH

R-CH

SCL

HDMI(L)21 3

HDMI(R)20 4

HDMI-AUDIO(L)

23 1

HDMI-AUDIO(R)

22 2

COMPONENT

AUDIO(R)-IN

COMPONENT

AUDIO(L)-IN

JK701

AUDIO(R)-IN3

AUDIO(L)-IN3

JK702

IF SIGNAL

PROCESS

IC701

(AUDIO SELECTOR)

IC801

(AUDIO AMP)

317 2

30AUDIO 6 43

I2C I/F

AMP

13 12

93

91

44

45

8987858179

94929088868280

AUDIO SW

(L-CH)

AUDIO SW

(R-CH)

MUTE

CONTROL

VOLUME

CONTROL

611

96

98

100

2 12

AMP

97

99

1

5 7

WF10

DIGITAL MAIN CBA UNIT

LED CBA

MAIN CBA

TO DIGITAL

SIGNAL PROCESS

BLOCK DIAGRAM

AUDIO-MUTE

VOLUME

TO SYSTEM

CONTROL

BLOCK DIAGRAM

AUDIO(L)-OUT1

AUDIO(R)-OUT1

AUDIO(L)-OUT2

AUDIO(R)-OUT2

JK704

(SCART)

3221

24

AUDIO(L)-IN1

AUDIO(R)-IN2

AUDIO(R)-IN1

AUDIO(L)-IN2

JK704

(SCART)

6

27

23

2

TO SYSTEM

CONTROL

BLOCK DIAGRAM

2-1 LC4P_SC

SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS

Standard Notes

WARNING

Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the mark “!” in the schematic diagram and the par ts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.

Notes:

1. Do not use the part number shown on these drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since these drawings were prepared.

2. All resistance values are indicated in ohms (K = 10

3

, M = 106).

3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.

4. All capacitance values are indicated in µF (P = 10

-6

µF).

5. All voltages are DC voltages unless otherwise specified.

2-2 LC4P_SC

LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:

1. CAUTION:

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.

2. CAUTION:

Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.

If Main Fuse (F601) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

3. Note:

1. Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since the drawings were prepared.

2. To maintain original function and reliability of repaired units, use only original replacement parts which are listed with their part numbers in the parts list section of the service manual.

4. Voltage indications on the schematics are as shown below:

Plug the TV power cord into a standard AC outlet.:

5. How to read converged lines

6. Test Point Information

2

3

1

5.0 5.0

Voltage

Indicates that the voltage is not consistent here.

Power on mode

(Unit: Volt)

3

2

1

ABCD

1-B1

1-D3

AREA D3

AREA B1

1-D3

Distinction Area

Line Number (1 to 3 digits)

Examples:

1. "1-D3" means that line number "1" goes to the line number "1" of the area "D3".

2. "1-B1" means that line number "1" goes to the line number "1" of the area "B1".

: Indicates a test point with a jumper wire across a hole in the PCB.

: Used to indicate a test point with a component lead on foil side.

: Used to indicate a test point with no test pin.

: Used to indicate a test point with a test pin.

2-3

Function Schematic Diagram

L5925SCF

2-4

L5925SCL

LED Schematic Diagram

3-1

L5925WI

WIRING DIAGRAM

S-VIDEO

IN

SCART JACK

(AV1/AV2)

COMPONENT

Y-IN

COMPONENT

Pb-IN

COMPONENT

Pr-IN

VIDEO

-IN3

AUDIO(L)

-IN3

AUDIO(R)

-IN3

COMPONENT

AUDIO(L)

-IN

COMPONENT

AUDIO(R)

-IN

CN103B

132547689

10131211141517161918212022

23

VIDEO

GND

COMPONENT-Pr

COMPONENT-Pb

GND

COMPONENT-Y

GND

HDMI(R)

HDMI(L)

HDMI-AUDIO(R)

HDMI-AUDIO(L)

GND

S-VIDEO-C

S-VIDEO-Y

GNDNUNUNUNUNUNICAM-RESET

RGB-CONT

NU

TU31

TUNER UNIT

AC601

AC CORD

CN104B

CN103A

132547689

10131211141517161918212022

23

LVDS-TX2(-)

GND

LVDS-TX1(+)

LVDS-TX1(-)

GND

LVDS-TX0(+)

LVDS-TX0(-)

GND

LVDS-TX2(+)

GND

LVDS-CLK(-)

LVDS-CLK(+)

GND

LVDS-TX3(-)

LVDS-TX3(+)

GNDNULCD+5V

25242726292830

31

LCD+5V

GNDNUGNDNUCONFIG-2

CONFIG-1

CN400

CN104A

132547689

10131211141517161918212022

23

GND

SCL

SDA

AFT-IN

IF-AGC

NU

GND

RAPID

VIDEO-B

VIDEO-G

VIDEO-R

GND

RGB-SYNC

GNDNUVOLUME

GNDNUAUDIO-MUTE

CN101A

132547689

10131211141517161918212022

23

BACKLIGHT-SW

LCD+5V

GND

P-ON+5V

GND

P-ON+3.3V

GND

P-ON+1.8V

GND

BACKLIGHT-ADJ

GNDNUNUNUNUNUNU

NU

CN703

132547689

101211GND

GND

INV+24V

GND

NUNUNU

CN102A

132547689

10131211141517161918212022

23

PROTECT-1

PROTECT-2NUP-ON-H3

P-ON-H2

P-ON-H1

GND

NU

GND

NU

GND

FBIN

GND

AL+5V

GND

AL+3.3V(D)

GND

AL+1.5V

GND

AL+3.3V(A)

GND

CN101B

132547689

10131211141517161918212022

23

GND

NU

BACKLIGHT-ADJ

BACKLIGHT-SW

LCD+5V

GND

P-ON+5V

GND

P-ON+3.3V

GND

P-ON+1.8V

GND

CN102B

132547689

10131211141517161918212022

23

GND

AL+5V

GND

AL+3.3V(D)

GND

AL+1.5V

GND

AL+3.3V(A)

GND

FBIN

PROTECT-1

PROTECT-2

NU

P-ON-H3

P-ON-H2

P-ON-H1

GNDNUGNDNUGND

13GND

14GND

15GND

16GND

17GND

18PROTECT-3

19

BACKLIGHT-ADJ

20

BACKLIGHT-SW

232122192017181615

1411121310

978563421

232122192017181615

1411121310

978563421

CN54

2

1

3

4

SP-GND

SP(R)

SP(L)

HDMI-IN

HDMI

AUDIO(L)-IN

HDMI

AUDIO(R)-IN

DIGITAL MAIN CBA UNITMAIN CBA

LCD

MODULE

CN1000

201819161714151312

11910 GND

GND

INV+24V

GND

8 GND

7 GND

6 GND

5 GND

4 GND

3 PROTECT-3

2

BACKLIGHT-ADJ1BACKLIGHT-SW

INVERTER CBA

LED-4(NU)

REMOTE(NU)

CLN53

1

CN53

2

SP(R)

SP-GND

CLN52

1

CN52

2

SP(L)

SP-GND

SP801

SPEAKER

L-CH

SP802

SPEAKER

R-CH

CN111CN15

13254

LED-2

LED-1

AL+5V

REMOTE

GND

10

783

4

LED CBA

CN16

2

1

3

4

SP-GND

SP(R)

SP(L)

6 GND 6

CN11B CN11A

FUNCTION CBA

13254

AL+5V

KEY-IN1

KEY-IN2

NU

13254

20070510 4-1 L5925PL

Different parts from the original model (LCD-C3206)

Ref. No. Description Part No.

MECHANICAL PARTS

A1 FRONT CABINET L5925FF 1EM021638

A2 BRAND BADGE L5825FF 1EM424293

A3 CONTROL PLATE L5825FF 1EM322505

A4 REAR CABINET L5925FF 1EM021639

A5 DECORATION PLATE L5925FF 1EM121825

A7 FUNCTION KNOB L5825FF 1EM221538

A18 STAND COVER L4301UB 1EM221344A

A24 STAND BASE PLATE L4300UA 1EM121113A

B16 Not Used

B18 CLOTH(10X180XT0.5) L0336JG 0EM408827

B21 WASHER L4300UA 1EM423446

B25 CLOTH(15X300XT1.0) L4430JA 1EM423842

B27 WASHER 10X5XT1.0 L4400UA 1EM423431

B28 Not Used

CLN10 Not Used

CLN11 Not Used

CLN11B WIRE ASSEMBLY WX1L5825-002 WX1L5825-002

CLN15 WIRE ASSEMBLY WX1L5825-003 WX1L5825-003

CLN16 WIRE ASSEMBLY WX1L5825-001 WX1L5825-001

CLN52 WIRE ASSEMBLY 101 WX1L4300-101 WX1L4300-101

CLN53 WIRE ASSEMBLY 101 WX1L4300-101 WX1L4300-101

CLN54B Not Used

CLN703 WIRE ASSEMBLY 104 WX1L4400-104 WX1L4400-104

ELECTRICAL PARTS

MMA CBA 1ESA14778

FUNCTION CBA ----------

CN10 Not Used

CN11 Not Used

CN11B CONNECTOR PRINT OSU S6B-PH-K-

S(LF)(SN)

J3PHC06JG030

LED CBA ----------

C51 ELECTROLYTIC CAP. 47µF/10V M H7 CE1AMASSM470

C52 CHIP CERAMIC CAP. F Z 0.01µF/50V CHD1JZ30F103

C53 CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V CHD1JZ30F104

C54 CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V CHD1JZ30F104

C56 CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V CHD1JZ30F104

C58 Not Used

C59 Not Used

C60 Not Used

C63 Not Used

C64 Not Used

CN15 PH CONNECTOR SIDE 5P S5B-PH-K-

S(LF)(SN)

J3PHC05JG030

CN16 PH CONNECTOR SIDE 4P S4B-PH-K-

S(LF)(SN)

J3PHC04JG030

CN52 PH CONNECTOR SIDE 2P S2B-PH-K-

S(LF)(SN)

J3PHC02JG030

CN53 PH CONNECTOR SIDE 2P S2B-PH-K-

S(LF)(SN)

J3PHC02JG030

CN54B Not Used

D51 LED L-53HT NP4Z000L53HT

D52 LED 333GT/E NPHZ00333GTE

D54 Not Used

D55 Not Used

R51 CHIP RES. 1/10W J 100 Ω RRXAJR5Z0101

R52 CHIP RES. 1/10W J 3.3k Ω RRXAJR5Z0332

R53 Not Used

R56 CARBON RES. 1/4W J 1k Ω RCX4JATZ0102

R57 Not Used

R60 Not Used

R61 CARBON RES. 1/4W J 220 Ω RCX4JATZ0221

R62 CARBON RES. 1/4W J 220 Ω RCX4JATZ0221

R64 Not Used

R65 Not Used

BC51 PCB JUMPER D0.6-P5.0 JW5.0T

BC52 Not Used

RCV51 PHOTO LINK MODULE KSM-712TH2E USESJRSKK044

RCV52 Not Used

Ref. No. Description Part No.

A6! RATING LABEL L5925FF ----------

B40 CAUTION LABEL L5825FF ----------

L5 SCREW P-TIGHT 3X10 BIND HEAD+ GBJP3120

L17 SCREW (M3X7) UD320JA 1FM420394

S1 CARTON L5925FF 1EM322501

S2 STYROFOAM TOP L5925FF 1EM021630

S3 STYROFOAM BOTTOM L5925FF 1EM021631

S5 SERIAL NO. LABEL L5925FF ----------

S7 Not Used

X2-1! OWNERS MANUAL(EN) L5825FF 1EMN22114

X2-2! OWNERS MANUAL(ES) L5825FF 1EMN22115

X2-3! OWNERS MANUAL(FR) L5825FF 1EMN22116

X2-4! OWNERS MANUAL(NL) L5825FF 1EMN22117

X2-5! OWNERS MANUAL(PT) L5825FF 1EMN22118

X2-6! OWNERS MANUAL(DE) L5825FF 1EMN22119

X2-7! Not Used

Ref. No. Description Part No.

LCD-C32B7

L5925FF

2007-06-05

Funai LCD-C32B7 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual