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XOCECO

NC

Sheet     to

DRAWN BY

1

1

A1.0

HP

XIAMEN OVERSEAS CHINESE
 ELECTRONIC CO., LTD.

TITLE:

DWG NO.

REV.

APPROVED BY

NV08

TDA7266SA

+5V_STB

+5V

+3.3V_STB

RV50
4.7K

+5V

GND-D

HDMIB_DDC_SCL

RV07

1K

GND-H

VV05
BC847AW

RV48

10K

CV05
4.7u

HP_DET

5V_HDMI-2_IN

RV51
4.7K

CV03
100n

AV2_LIN

RV31

10

CV33

1000u

35V

RV27

10K

RV43

10

RV56

10K

XV01

HDMI-FIX

18

11

4

17

7

14

3

2

10

13

6

19

9

1

16

5

12

15

8

+12V

RV79

1K

AV1_LIN

RV11

1K

RV74

4.7K

HDMIB_RX0-

RV24

4.7K

RV29

100

RV47

10K

NV02

PESD5V0L4UG

1

2

3

4

5

LV03

RV36

3.6K

CV14

100u

16V

+12V_AMP

AMP_R

CV06
4.7u

RV80

10K

CV04

100n

1

OUT1+

2

OUT1-

3

VCC3

4

IN1

5

NC5

6

MUTE

7

ST-BY

8

PW-GND

9

S-GND

10

NC10

11

NC11

12

IN2

13

VCC13

14

OUT2-

15

OUT2+

RV53
4.7K

RV41

100

RV49
4.7K

NV01

HEF4052BT

1

OY

2

2Y

3

Y-COM

4

3Y

5

1Y

6

INH

7

VEE

8

VSS

9

B

10

A

11

3X

12

0X

13

X-COM

14

1X

15

2X

16

VDD

GND-D

RV26

3.6K

5V_HDMI-2_IN

HDMIA_RX2-

RV10

1K

HD

CV01
100n

RV06

1K

AV2_RIN

CV12

100n

5V_HDMI-1_IN

RV63

910

+5V

RV09

0

RV52
4.7K

RV05

0

CV25

10u

16V

RV61

10K

HDMIB_RX2-

RV30

100

RV55

0

GND-D

RV25

0

HD

RV57

27K

DV02
MMBD1204

+5V

GND-D

5V_HDMI-1_IN

VV11

BC857AW

CV21

1u

HD

RV75

4.7K

VV03

2N7000

S

D

G

HD1_RIN

DV01

MMBD1204

LV02

BG2012D151T

GND-D

HD1_LIN

HDMIA_RX0-

HD

RV44

10

HDMIA_RX1-

RV08

100K

CV17

10u 16V

RV35

0

+5V_ear

+5V_STB

HDMIA_DDC_SDA

+12V_AMP

NV04

24C02N-10SI27

1

AO

2

A1

3

A2

4

GND

5

SDA

6

SCL

7

WP

8

Vcc

RV23

4.7K

HDMI_CEC

RV64

1.1K

AU_SW0

HDMIA_DDC_SCL

RV33

100

VV02

BC847AW

+5V

AMP_L

RV58

100

HDMIA_RXC-

HDMIB_RXC-

GND-D

CV07

22p

NV03

1

2

3

4

5

6

CV11

47u

16V

VV01

BC847AW

RV28

10K

RV76
2.4K

XV02

HDMI-FIX

18

11

4

17

7

14

3

2

10

13

6

19

9

1

16

5

12

15

8

RV71

0

RV59

200

RV72

1.1K

CV10

22p

RV37

10K

RV32

100

HDMIB_DDC_SDA

NV06

BH3547F

1

OUT1

2

MUTE

3

IN1

4

GND

5

IN2

6

BIAS

7

OUT2

8

VCC

NV05

24C02N-10SI27

1

AO

2

A1

3

A2

4

GND

5

SDA

6

SCL

7

WP

8

Vcc

RV77

0

CV15

1u

CV09

22p

HD

XV03

ST-113

R

G2

L

G5

RV34

10

RV12

100K

HD

CV08

22p

HDMIB_HPDCTRL

RV54
4.7K

RV42

100

RV39

100

RV62

3.9K

MUX_RIN

RV40

100

HDMIB_RX1-

+5V

HD

RV38

10K

AV1_RIN

CV26

100n

CV02
100u

16V

AU_SW1

CV20

10n

CV32

1000u

35V

RV78

4.7K

XV05

1

2

3

4

+3.3V_STB

+12V

AMP_MUTE

CV23

1u

CV19

10n

RV70

910

HDMIA_HPDCTRL

MUX_LIN

HD

VV04

BC847AW

CV47

2.2u

CV40

2.2u

CV46

2.2u

CV41

2.2u

CV44

2.2u

CV45

2.2u

DV05

CD4148WP

DV06

CD4148WP

DV04
CD4148WP

DV03

CD4148WP

DV07

CD4148WP

DV08

CD4148WP

VV12
BC847AW

GND-D

HP_MUTE

CV24
470u 25V

RV82

0

GND-D

RV01

47K

RV02

47K

Rv45

100K

Rv19

100K

Cv27

10u

16V

Rv17

100K

RV03

100K

RV04

100K

RV13

100K

RV60
4.7K

RV81

2K

NV07

PESD5V0L4UG

1

2

3

4

5

RV83

100K

CV13

100u

16V

CV16

100u

16V

+5V_ear

RV86

10K

+5V

VV13
BC847AW

RV84
4.7K

+5V_STB

RV88

27K

RV85

10K

CV28

10u 16V

RV87

10K

VV14

MMBT3906LT1

LV01

STBH2012-201PT

NC

NC

NC

NC

NC

MAIN Board

Содержание LCD-19R30

Страница 1: ...LCD TV SERVICE MANUAL LCD 19R30 PRODUCT CODE No REFERENCE No SM0915068 1 682 348 10 P S BG DK I FILE NO PRODUCT CODE No ...

Страница 2: ...TS Safety precautions 1 Alignment instructions 3 Software upgrade method 8 Block diagram 10 IC block diagram 11 Troubleshooting guide 12 Schematic diagram 20 APPENDIX A Assembly list APPENDIX B Exploded view ...

Страница 3: ... will result 2 5 If any foreign substance such as water liquid metal slices or other matters happens to fall into the module be sure to cut the power off immediately and do not move anything on the module lest it should cause fire or electric shock due to contact with the high voltage or short circuit 2 6 Should there be smoke abnormal smell or sound from the module please shut the power off at on...

Страница 4: ...20 85 Scope for storage 10 90 2 13 Display of a fixed picture for a long time may result in appearance of picture residue on the screen as commonly called ghost shadow The extent of the residual picture varies with the maker of LCD screen This phenomenon doesn t represent failure This ghost shadow may remain in the picture for a period of time several minutes But when operating it please avoid dis...

Страница 5: ...le 1 Table 1 XJ01 all pin voltage XJ01 Pin1 2 3 4 5 6 7 8 9 10 11 12 13 Voltage 2 5 V 0 3 3 V 0 11 4 V 12 6 V 0 31 4 V 32 6 V 4 75 V 5 25 V 0 4 75 V 5 25 V 0 2 5 V 2 2 Alignment flow chart Fig 1 Defaults preset Check accessory then pack the TV Check if HDMI input is normal Check all the function at this mode Check if VGA input is normal Check VGA mode analog control H V center etc Check if DDC FLA...

Страница 6: ...to user menu select VGA Settings from Setup menu then select Auto to perform auto correction so that the picture can be displayed wholly Then input signal from VG848 with PATTERN of 914 go to factory menu and select ADC ADJUST to perform AUTO ADC until Complete appears b When adjusting in YPbPr mode first input 480i 60 Hz format signal with 75 color bar plus gray scale VG848 Timing input 968 PAT 9...

Страница 7: ... 305 In this way repeatedly adjust R GAIN B GAIN and R OFFSET B OFFSET until both the first and second steps chromaticity coordinates be 295 305 3 2 2 3 For YPbPr channel Through YPbPr channel input 8 step gray scale signal VG848 Timing input 968 PAT 920 go to factory menu and access color temperature menu page fix G GAIN adjust R GAIN and B GAIN to make the 7th step chromaticity coordinates be 29...

Страница 8: ... 1280 720 50 Hz 37 50 50 74 25 720p 50 6 1280 720p 59 94 60 Hz 44 96 59 94 74 18 720p 59 94 60p 7 1920 1080i 50Hz 28 125 50 74 25 1080i 50 8 1920 1080i 59 94 60 Hz 33 75 59 94 74 25 1080i 59 94 60i 9 1920 1080p 23 98 24 Hz 27 00 23 98 24 74 25 1080p 23 98 24p 10 1920 1080p 50Hz 56 25 50 148 50 1080p 50 11 1920 1080p 59 94 60 Hz 67 50 60 00 148 50 1080p 59 94 60p 4 4 VGA input check Respectively in...

Страница 9: ... 60 Hz 44 96 59 94 74 18 720p 59 94 60p 7 1920 1080i 50Hz 28 125 50 74 25 1080i 50 8 1920 1080i 59 94 60 Hz 33 75 59 94 74 25 1080i 59 94 60i 9 1920 1080p 23 98 24 Hz 27 00 23 98 24 74 25 1080p 23 98 24p 10 1920 1080p 50Hz 56 25 50 148 50 1080p 50 11 1920 1080p 59 94 60 Hz 67 50 60 00 148 50 1080p 59 94 60p Note A DVI device also can be connected to the HDMI jack by using a DVI to HDMI adapter cab...

Страница 10: ...the TV after power off c Insert the USB device into the USB port Keep holding any button except POWER button on the TV and then plug the power cord into the power outlet after about 2 3s release the button the software begins to upgrade automatically Note that during upgrade the USB device can not be removed and the TV can not be power off d During the process operate according to hints provided o...

Страница 11: ... to Feature Adjust sub menu select EEPROM Init at the first line ⅲ Press RIGHT arrow button to perform initialization During the process the message Please Wait will be displayed When complete OK is displayed ...

Страница 12: ...Block Diagram 10 ...

Страница 13: ...er a scaling engine the MStarACE 3 color engine an on screen display controller an 8 bit MCU and a built in output panel interface By use of external frame buffer PIP POP is provided for multimedia applications Furthermore 3 D video decoding and processing are fulfilled for high quality TV applications To further reduce system costs the MST6E16GS also integrates intelligent power management contro...

Страница 14: ...pply or infrared sensor board has trouble or power cord problem No Check if main chip MST6E16 pin44 waveform is sine wave FLASH pin6 waveform is square wave Check main chip peripheral circuit and FLASH EEPROM peripheral circuit Check backlight board then check main chip pin81 backlight control status No Check if signal from its input to IC pin is normal If normal then check IC and its periphery an...

Страница 15: ... pin 44 waveform is sine wave or not Check NS01 crystal oscillator circuit Note If detect NS01 main chip pin 169 is of high level you may remove RS14 detect VS01 emitter if first output high level after power on then output low level continuously If not the reset circuit may have problem First detect if NS01 main chip pin 44 waveform is sine wave if not check NS01 crystal oscillator circuit When c...

Страница 16: ...K but no sound Note HDMI channel is excluded For HDMI channel picture and sound check please refer to procedure of 5 3 Sound OK but no picture only backlight lights up Sound is ok but only raster appears Check LVDS power supply is normal Normal Abnormal Check signal from NS01 to XS01 is normal Normal Abnormal Panel LVDS reception board has problem Check NS01 power supply and its peripheral circuit...

Страница 17: ...signal output No Yes Check power amplifier rear stage peripheral circuit Check CV18 CV22 have signal input amplification Yes No Check NV06 corresponding channel has signal input Check power amplifier s peripheral circuit the power supply and MUTE pin circuit Yes No Check NV06 peripheral circuit and its power supply Check every stage circuit along the audio input channel 15 ...

Страница 18: ...xists problem b channel has no picture Check CS28 has signal input Yes No The route from SCART CVBS socket to NS01 exists problem Check NS01 peripheral circuit crystal oscillator and the power supply c S VIDEO channel has no picture Check CS25 CS26 has signal input Yes No Check NS01 peripheral circuit crystal oscillator and the power supply The route from S VIDEO socket to NS01 exists problem 16 S...

Страница 19: ... and NS01 e channel has no picture Check CS21 CS22 CS23 CS24 have signal input Yes No Check NS01 peripheral circuit crystal oscillator and the power supply Check NB06 pin 4 pin 7 pin 9 have signal output No Yes Check NB06 pin 2 pin 5 pin 11 3 pin 6 pin 10 have signal input No Yes Check NB06 peripheral circuit the power supply 17 Check channel between NB06 output and NS01 input The route between YP...

Страница 20: ...ut Yes No Check NS01 peripheral circuit crystal oscillator and the power supply Check circuit between HDMI socket and NS01 Note To get normal HDMI picture especially when connect to DVD player with HDCP information it must be guaranteed that NV04 and NV05 HDMI port DDC chip writing is correct and especially bus between NV04 NV05 and HDMI jack must be smooth and unhindered Secondly HOTPLUG circuit ...

Страница 21: ...r supply Check circuit between HDMI socket and NS01 Note To get normal HDMI sound especially when connect to DVD player with HDCP information it must be guaranteed that NV04 and NV05 HDMI port DDC chip writing is correct and bus between NV04 NV05 and HDMI jack must be smooth and unhindered otherwise the sound playback can not go 19 ...

Страница 22: ......

Страница 23: ... 1R_IN 4 GND D 6 1L_IN 8 1FUN_SEL 10 pinCo 12 pinCo 14 GND D 16 1RGB_SW 17 GND D 19 1TV_OUT 18 GND D 20 1TV_IN 21 GND D AV1_LIN RB27 470 SCART1_R SCART1_RIN 12V CB55 100n RB52 47 AV1_RIN CB10 2 2u 25V RB140 15K NB12 PESD5V0L4UG 1 2 3 4 5 RB114 12K CB23 560p Y RB78 4 7K RB59 10K SC1_L SCART1_LOUT RB82 10K RB105 10K RB128 100 RB93 100 CB49 100n SCART1_LIN DDC_SDA CB34 560p NB11 PESD5V0L4UG 1 2 3 4 5...

Страница 24: ...CJ15 100u 16V RJ73 4 7K XJ02 USB3112 1 2 3 4 RJ85 75 LJ26 NLC453232T 220K RJ76 4 7K 5V_ALL NJ06 VJ07 BC847AW XJ01 TJC3 13A 1 2 3 4 5 6 7 8 9 10 11 12 13 ON_PANEL LJ24 5V_TUNNER CJ67 2 2u LJ14 STPB3216 380PT LJ36 STPB3216 380PT VJ03 BC847AW RJ65 100 RJ45 0 RJ98 4 7K RJ89 10K CJ87 1200p CJ98 100n CJ28 100n CJ54 47u 25V USB1_OC_DET RJ70 0 OUT SIFM VJ04 BC847AW RJ51 10K 5V_STB RJ48 0 CJ104 1000p CJ26 ...

Страница 25: ...35 0 5V_ear 5V_STB HDMIA_DDC_SDA 12V_AMP NV04 24C02N 10SI27 1 AO 2 A1 3 A2 4 GND 5 SDA 6 SCL 7 WP 8 Vcc RV23 4 7K HDMI_CEC RV64 1 1K AU_SW0 HDMIA_DDC_SCL RV33 100 VV02 BC847AW 5V AMP_L RV58 100 HDMIA_RXC HDMIB_RXC GND D CV07 22p NV03 1 2 3 4 5 6 CV11 47u 16V VV01 BC847AW RV28 10K RV76 2 4K XV02 HDMI FIX 18 11 4 17 7 14 3 2 10 13 6 19 9 1 16 5 12 15 8 RV71 0 RV59 200 RV72 1 1K CV10 22p RV37 10K RV3...

Страница 26: ...00n NS02 MX25L1605AM2C 12G 1 CS 2 SO 3 WP 4 GND 5 SI 6 SCLK 7 HOLD 8 VCC VIFP RS50 22 GND H RS59 100 HDMIA_RX0 HDMIA_DDC_SDA CS43 10u TAGC 5V_STB RS109 0 RS78 10K HDMIB_RXC SOY RS104 0 VIFM CS39 10n HDMIB_RX2 ON_PANEL RS86 4 7K RS91 47 CS15 100n PB 2 6MVDD CS67 22p 3 3V_STB 3 3V_STB CS17 47n CS37 2 2u VIF_CTL RS80 4 7K LED RS02 22K RS20 100 HDMIA_RX0 ON_PBACK HDMIB_DDC_SDA RS64 22 CS03 4 7u CS47 1...

Страница 27: ......

Страница 28: ...19 Backlight Board ...

Страница 29: ...19 Power Board ...

Страница 30: ...5270616001 HY5DU561 5275616222 HEF4052B 5274052001 FTDC3S20 5524050023 IR board XI6KU0090910 Key board XI6HE0330510 Power board XI6KU0202010 Remote control XI6010200901 Panel XI5203195205 CLAA185WA03 233 APPENDIX A Main assembly LCD 19R30 MAIN COMPONENT AND IT S NO ...

Страница 31: ...1 4 5 2 6 9 7 8 3 10 APPENDIX B Explodedview LCD 19R30 ...

Страница 32: ...IST OF EXPLODED VIEW NO DESCRIPTION 1 front cabinet 2 key board 3 IR board 4 speaker 5W 16Ω 5 panel 6 main board 7 back cabinet 8 stand column 9 stand 10 power backlight board 11 user manual 12 remote control ...

Страница 33: ...aker 5W 16Ω 2 5 XI5203195205 panel 1 CLAA185WA03 233 6 XI6KU0090110 main board 1 7 XI5H1946M010 back cabinet 1 8 XI6156090800 stand column 1 9 XI6151201000 stand 1 10 XI6KU0202010 power backlight board 1 11 XI5944035620 user manual 1 12 XI6010200901 remote control 1 Only the parts in above list are used for repairing Other parts except the above parts can t be supplied ...

Страница 34: ...overing to prevent accidental scratching or damage to the unit s finish 4 The speaker is not intended to support the weight of this display Do not move or handle this product from the speaker which can cause damage to the display not covered under the manufacturer s warranty Place the stand on the table hold the display upright and aim the bottom stand column toward the stand groove then carefully...

Страница 35: ...hout notice Detaching the stand column 1 Place carefully the display on its front side with a soft cushion below shake the stand forward or backward to adjust angle between the stand and the display let the angle 90 If wall mounting please detach the stand column Place carefully the display on its front side with a soft cushion below loosen and remove 4 pcs screws detach the stand column 9 0 Pull ...

Страница 36: ...e sure to ask an authorized service personnel to carry out setup 2 Thoroughly read this instruction before setup and follow the steps below precisely 3 The wall to be mounted should be made from solid materials Only use accessories supplied by the manufacturer 4 Very carefully handle the unit during setup We are not liable for any damage or injury caused by mishandling or improper installation 5 B...

Страница 37: ...July 2009 ...

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