background image

A_MVERF

MA_DQ15
MA_DQ8
MA_DQ10
MA_DQ13

MIUA_DQ[0:15]

MIUA_DQ11
MIUA_DQ12
MIUA_DQ9
MIUA_DQ14

MA_DQ11
MA_DQ12
MA_DQ9
MA_DQ14

MA_DQ6
MA_DQ1
MA_DQ3
MA_DQ4

MIUA_DQ6
MIUA_DQ1
MIUA_DQ3
MIUA_DQ4

MIUA_DQ7
MIUA_DQ0
MIUA_DQ2
MIUA_DQ5

MA_DQ5

MA_DQ2

MA_DQ7
MA_DQ0

MIUA_DQ15
MIUA_DQ8
MIUA_DQ10
MIUA_DQ13

MA_RASZ

MA_CASZ

MA_A11

MA_A8

MIUA_A[0:12]

MA_A7
MA_A9

MA_A12

MA_A3

MA_A1

MA_A10

MA_A5

MIUA_A4
MIUA_A6

MA_A0

MA_A2

MA_BA0

MA_WEZ

MIUA_BA0

MA_MCLK

MIUA_WEZ

MIUA_ODT

MA_BA1

MA_ODT

MIUA_A8
MIUA_A11

MIUA_BA1

MA_CKE

MA_BA2

MA_A4
MA_A6

MIUA_A0

MIUA_A2

MIUA_MCKE

MA_DQM1

MA_BA0

MA_BA1

MA_DQM0

MIUA_DQM0

MIUA_DQM1

MA_DQ6

MA_DQ3

MA_DQ1

MA_DQ4

MA_DQ15
MA_DQ8
MA_DQ10
MA_DQ13

MA_A8
MA_A11
MA_WEZ

MA_ODT
MA_RASZ

MA_BA2

MA_DQ5

MA_DQ2

MA_DQ7
MA_DQ0

MA_CASZ

MA_A1
MA_A10
MA_A5

MA_MCLKZ

MA_MCLK

MA_CKE

MA_DQM0

MA_DQM1

MA_DQS0
MA_DQSB0
MA_DQS1
MA_DQSB1

MA_A9
MA_A12
MA_A7

MA_DQ11

MA_A3

MA_A0

MA_DQ12

MA_A2
MA_A4
MA_A6

MA_DQ9
MA_DQ14

A_MVERF

MIUA_RASZ

MIUA_CASZ

MIUA_DQS0
MIUA_DQS0B

MA_DQS0
MA_DQSB0

MIUA_DQS1
MIUA_DQS1B

MA_DQS1
MA_DQSB1

MA_MCLKZ

MIUA_A5

MIUA_BA2

MIUA_A7

MIUA_A3

MIUA_A1

MIUA_A12

MIUA_A9

MIUA_A10

1.8VA

1.8VA

MIUA_DQ[0:15]

3

MIUA_BA2

3

MIUA_A[0:12]

3

MIUA_MCLK

3

MIUA_MCLKZ

3

MIUA_BA0

3

MIUA_WEZ

3

MIUA_ODT

3

MIUA_BA1

3

MIUA_MCKE

3

MIUA_DQM0

3

MIUA_DQM1

3

MIUA_RASZ

3

MIUA_CASZ

3

MIUA_DQS0

3

MIUA_DQS0B

3

MIUA_DQS1

3

MIUA_DQS1B

3

Close to DRAM

Close to MSD306

Close to MSD306

Close to MSD306

Close to DRAM

Close to DRAM

7
5
3
1

8
6
4
2

RP25 22RX4

7
5
3
1

8
6
4
2

RP25 22RX4

R74

22R

R74

22R

C74
1n

C74
1n

7
5
3
1

8
6
4
2

RP24
22RX4

7
5
3
1

8
6
4
2

RP24
22RX4

R78

22R

R78

22R

7
5
3
1

8
6
4
2

RP22

75RX4

7
5
3
1

8
6
4
2

RP22

75RX4

R83
100R

R83
100R

R71
10k

R71
10k

7
5
3
1

8
6
4
2

RP9

22RX4

7
5
3
1

8
6
4
2

RP9

22RX4

7
5
3
1

8
6
4
2

RP12

75RX4

7
5
3
1

8
6
4
2

RP12

75RX4

753

1

8642

RP23

75RX4

753

1

8642

RP23

75RX4

7
5
3
1

8
6
4
2

RP21 22RX4

7
5
3
1

8
6
4
2

RP21 22RX4

C68
10n

C68
10n

R84
100R

R84
100R

7
5
3
1

8
6
4
2

RP13

75RX4

7
5
3
1

8
6
4
2

RP13

75RX4

R72
10k

R72
10k

753

1

8642

RP11

75RX4

753

1

8642

RP11

75RX4

A

B

C

D

E

F

G

H

J

K

L

M

N

P

R

1

2

3

7

8

9

Vdd

NC

Vss

DQ14

VssQ

UDM

VddQ

DQ9

VddQ

DQ12

VssQ

DQ11

Vdd

NC

Vss

DQ6

VssQ

LDM

VddQ

DQ1

VddQ

DQ4

VssQ

DQ3

VddL

Vref

Vss

CKE

WE#

RFU

BA0

BA1

A10

A1

Vss

A3

A5

A7

A9

Vdd

A12

RFU

VssQ

UDQS# VddQ

UDQS

VssQ

DQ15

VddQ

DQ8

VddQ

DQ10

VssQ

DQ13

VssQ

LDQS# VddQ

LDQS

VssQ

DQ7

VddQ

DQ0

VddQ

DQ2

VssQ

DQ5

VssDL CK

Vdd

RAS#

CK#

ODT

CAS#

CS#

A2

A0

Vdd

A6

A4

A11

A8

RFU

NC

Vss

U9

W9751G6IB

A

B

C

D

E

F

G

H

J

K

L

M

N

P

R

1

2

3

7

8

9

Vdd

NC

Vss

DQ14

VssQ

UDM

VddQ

DQ9

VddQ

DQ12

VssQ

DQ11

Vdd

NC

Vss

DQ6

VssQ

LDM

VddQ

DQ1

VddQ

DQ4

VssQ

DQ3

VddL

Vref

Vss

CKE

WE#

RFU

BA0

BA1

A10

A1

Vss

A3

A5

A7

A9

Vdd

A12

RFU

VssQ

UDQS# VddQ

UDQS

VssQ

DQ15

VddQ

DQ8

VddQ

DQ10

VssQ

DQ13

VssQ

LDQS# VddQ

LDQS

VssQ

DQ7

VddQ

DQ0

VddQ

DQ2

VssQ

DQ5

VssDL CK

Vdd

RAS#

CK#

ODT

CAS#

CS#

A2

A0

Vdd

A6

A4

A11

A8

RFU

NC

Vss

U9

W9751G6IB

V

dd1

A1

NC2

A2

Vss1

A3

DQ14

B1

VssQ

2

B2

UDM

B3

A4

N8

A6

N7

V

dd4

M9

A0

M8

A2

M7

CS#

L8

CAS#

L7

ODT

K9

CLK#

K8

RAS#

K7

V

dd3

J9

CLK

J8

VssD

L

J7

DQ5

H9

VssQ

1

0

H8

DQ2

H7

V

ddQ10

G9

DQ0

G8

V

ddQ9

G7

DQ7

F9

VssQ

8

F8

LDQS

F7

V

ddQ6

E9

LDQS#

E8

VssQ

6

E7

DQ13

D9

VssQ

5

D8

DQ10

D7

V

ddQ5

C9

DQ8

C8

V

ddQ4

C7

A7

P2

A9

P3

V

dd5

R1

A12

R2

RFU3

R3

VssQ

1

A7

UDQS#

A8

V

ddQ1

A9

UDQS

B7

VssQ

3

B8

DQ15

B9

A10

M2

A1

M3

Vss4

N1

A3

N2

A5

N3

V

ddQ2

C1

DQ9

C2

V

ddQ3

C3

DQ12

D1

VssQ

4

D2

DQ11

D3

V

dd2

E1

NC3

E2

Vss2

E3

DQ6

F1

VssQ

7

F2

LDM

F3

V

ddQ7

G1

DQ1

G2

V

ddQ8

G3

DQ4

H1

VssQ

9

H2

DQ3

H3

V

ddL

J1

Vref

J2

Vss3

J3

CKE

K2

WE#

K3

RFU2

L1

BA0

L2

BA1

L3

RFU1

R7

NC1

R8

Vss5

P9

A8

P8

A11

P7

7
5
3
1

8
6
4
2

RP19

22RX4

7
5
3
1

8
6
4
2

RP19

22RX4

R86

75R

R86

75R

753

1

8642

RP10 22RX4

753

1

8642

RP10 22RX4

7
5
3
1

8
6
4
2

RP20

22RX4

7
5
3
1

8
6
4
2

RP20

22RX4

RF_AGC

T_RF-AGC

VIFM

VIFP

TV-SIFP

TV-SIFM

IF_TV

5V_Antenna

AS

IF

_

O

UT

T_SDA

IF

_

T

V

T_SCL

5V_Antenna

#I

F_O

U

T

T_I

F

AG

C

ATV_RF-

A

GC

T_RF-AGC

5V_TUNER

5V_B1

5V_TUNER

12VA

5V_TUNER

3.3VA

VIF_12V

3.3VA

5V_TUNER

12VA

5V_TUNER

5V_B1

5V_B2

5V_B2

5V_TUNER

RF_AGC_SEL

3

RF_AGC

3

TV-SIFP

3

TV-SIFM

3

VIFM

3

VIFP

3

SIF_CTL

3

5V_Antenna_ON/OFF

3

IF_AGC

3

T_SCL

3

T_SDA

3

#IF_OUT

3

IF_OUT

3

TUNER

RF AGC Switch

closed to tuner

TUNER POWER

预留以消除

ATV

拖影

-20100311

Close to MSD306

close together

close to U27

SAW Drive

Power for Antenna 

Close to Tuner

C97
NC/10n

C97
NC/10n

R117
1k

R117
1k

+

C

A

11

220u/

16V

+

C

A

11

220u/

16V

C58

100n

C58

100n

1

2

U14
DT70WI-3R-E

U14
DT70WI-3R-E

ANT_PWR

1

+

 5V_B1

2

RF_AGC

3

SCL

4

SDA

5

+

 5V_B2

6

NC

7

AS

8

IF_AGC

9

DIF2

10

DIF1

11

GND1

13

GND2

14

GND3

15

GND4

16

AIF

12

R100

10k

R100

10k

1

2

R

338

N

C

/0R

R

338

N

C

/0R

L12
0.82uH

L12
0.82uH

R145

100R

R145

100R

R113
NC/100K

R113
NC/100K

R94

100k

R94

100k

1

2

SAW

U15

NC/K9650M

SAW

U15

NC/K9650M

ING

2

OUT1

5

GND

3

OUT2

4

IN

1

R85
33k

R85
33k

1

2

C123

1n
C123

1n

C101
10n

C101
10n

R129
1K

R129
1K

R95

10k

R95

10k

1

2

C103

100n

C103

100n

1

2

C108
10n

C108
10n

C213
100n

C213
100n

1

2

C95

NC/100n

C95

NC/100n

1

2

R121
NC/2.2K

R121
NC/2.2K

R134
1k

R134
1k

L15

FB0603

L15

FB0603

1

2

C57
10u

C57
10u

L5

FB0603

L5

FB0603

1

2

Q17
2SC2717

Q17
2SC2717

3

1

2

R103

100R

R103

100R

1

2

R139

47R

R139

47R

D7
NC/BA277

D7
NC/BA277

R116
NC/2.2K

R116
NC/2.2K

SAW

U18

X6966M50

SAW

U18

X6966M50

ING

2

OUT1

4

GND

3

OUT2

5

IN

1

C105
10n

C105
10n

C211
10u

C211
10u

R101

10k

R101

10k

+

CA1

3

100u/

16V

+

CA1

3

100u/

16V

D6

1N4001

D6

1N4001

2

1

TP10
5V_TUNER

TP10
5V_TUNER

1

C85
NC/10n

C85
NC/10n

R137
47R

R137
47R

C122
NC/10n

C122
NC/10n

CA17

100u/16V

CA17

100u/16V

U12 NC/TPS2051B

U12 NC/TPS2051B

OUT

1

GND

2

SET

3

ON

4

IN

5

Q13
3904

Q13
3904

1

2

3

IN

GND

OUT

U7

78M05

IN

GND

OUT

U7

78M05

3

2

1

4

R138
4.7k

R138
4.7k

C92

NC/100n

C92

NC/100n

1

2

R118
22R

R118
22R

C104
NC/10n

C104
NC/10n

R356
390R

R356
390R

Q16
NC/2N7002

Q16
NC/2N7002

1

2

3

C212

100n

C212

100n

1

2

L11
2.2uH

L11
2.2uH

1

2

R128
22R

R128
22R

R119

NC/6.8k

R119

NC/6.8k

R106
NC/10k

R106
NC/10k

Q14
3906

Q14
3906

2

1

3

C81
10u

C81
10u

1

2

C98

100n

C98

100n

1

2

Содержание LEDV2282FHD

Страница 1: ...ng and Schematic Diagrams for DVD Module 4 Schematic Diagrams 10 BOM List 3 Troubleshooting MODEL CONTENTS 1 Precautions 2 Block Diagram 6 Exploded Views 7 Adjustment 8 Key Parts 9 Product Specificati...

Страница 2: ...he instrument completely reassembled plug the AC line cord directly into a 120V AC outlet Do not use an isolation transformer during this test Use a leakage current tester or a metering system that co...

Страница 3: ...ics are identified by shading an or a on schematics and parts lists Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might created...

Страница 4: ...ved screws components and wiring have been installed correctly and that the portion around the serviced part has not been damaged and so on Further check the insulation between the blades of the attac...

Страница 5: ...a soft cloth If it is still dirty try breathing on the surface to create a light condensate and wipe it again If the surface is very dirty we recommend a CRT cleaning agent Apply the agent to a cloth...

Страница 6: ...le Disassembly can cause malfunctions 9 If you transport the module do not use packing material that contains epoxy resin amine or silicom glue alcohol or oxime These materials can release gas that ca...

Страница 7: ...l image 3 IR Board Receive IR Signal 4 Keyboard POWER SOURCE MENU VOL Channel 5 Adapter 110V 240V AC IN Ouput 12V DC to the mainboard 6 Inverter Board the power supply for backlight of panel 7 DVD Mod...

Страница 8: ...3 Troubleshooting Power Units Problem Solving Display Units Problem Solving Audio Units Problem Solving Functional Units Problem Solving CV306L A Common Problem Solving...

Страница 9: ......

Страница 10: ...d whether the voltage is correct or not Power on the machine Check LDO IC U1 U4 U10 U3 Q1 Q2 burned or over load short circuit test point TP3 have 5V test point TP2 have 12V test point TP11 have 1 8V...

Страница 11: ...the circuit N Is VCC Panel correct Check Q10 J2 Does the software match the panel Upgrade software N Y P i c t u r e2Display Units Units Flickering Flickering Flickering or Black screen Back light on...

Страница 12: ...d J9 have 12V Check 12v power supply for Inverter does J9 4 pin have control voltage Check repair power supply N N Y Y Check the PB ON OFF network Inverter damaged or bad connection P i c t u r e3D i...

Страница 13: ...U T Es e t W h e t h e ro rn o tn o r m a l R e s e t c h e c k C O N 1 2a n y s i g n a lo u t p u t Y N E x a m i n e e x t e r n a l S p e a k e r C h e c kp o w e r C i r c u i to fQ 1 i fp o w e...

Страница 14: ...ork of MSD306P T y3 aa3 pin Y Does Tuner have any signal output N Y Change Tuner Does power supply of U7 N Y Check circuit of MSB1210 Crystal Oscillator and SAW filter U14 Check the power supply netwo...

Страница 15: ...eck U13 MSD306PT and their filter network Y Check U13 and U14 whether has input audio signal or not N Y Check MSB121 0 and the circuit concerne d Check the Audio SAW filter U15 and the circuit concern...

Страница 16: ...t N Check U13 MSD3 06PT signal network concerned Y Change Tuner Does U13 have TS signal output Check external circuit N Y Picture 7 Function Unit DTV broke down TV not searching no image E x t e r n a...

Страница 17: ...gnal whether is normal and stable Check VS HS circuit OSD setting does not march Reset system Or input not support Check VS HS circuit Y N Check the VGA socket Whether touch normal with cable Check VG...

Страница 18: ...U13 MSD306PT RGB Input signal normal Y N Does SCART socket touch normal Is AV S VIDEO Input signal normal Change external signal source N Y Check the connection network between U13 and the input port...

Страница 19: ...Check HDMI and its input network check U26 whether it s EDID data is correct Check U13 MSD306PT HDMI network whether normal or not N Under pc mode whether has sound or not Y N See NO SOUND repair guid...

Страница 20: ...er Menu then CI information can be read Check VCC PCMCIA power supply Check Q8 whether work normal or not OK Y N Y N Y N Change CI card Check external network Change Q8 Change CI card OK Check externa...

Страница 21: ...Pr no output N Y Does input equipment work normal Y N Change input source Check theYPbPr input network Check the couple circuit Normal Abnormal Does U13 port damage Repair it P i c t u r e1 2F u n c t...

Страница 22: ...512M bits DDR1 32M bits SERIAL FLASH 12V_IN 2210mA AMP 1000mA 5VU 3000mA MP1423 1 32V 1160mA DVDD1 2V 5VA for PANEL 7805 TPS54231 5V_TUNER 210mA 3 3VU 400mA standby 6 6mA AVDD_DVI 1000mA 32K bits EEPR...

Страница 23: ...OMP 6 VSENSE 5 C31 100n C31 100n 1 2 C43 NC 100n C43 NC 100n 1 2 CA14 100u 16V CA14 100u 16V 2 1 D4 1N4001 D4 1N4001 2 1 CA18 100u 16V CA18 100u 16V 2 1 Q6 3904 Q6 3904 1 2 3 R45 10k R45 10k 1 2 L3 6...

Страница 24: ...VDD_DDRA5 F17 VDDC1 2VC H17 VDDC1 2VD J14 VDDC1 2VE J15 VDDC1 2VF J16 VDDC1 2VG J17 AVDD25_REF2 P8 DVDD_NODIE K9 AVDD_DVI3 G8 AVDD_DMPLL G9 AVDD3P3_ADC1 E9 AVDD3P3_ADC2 F9 GND3 N9 GND4 P9 GND11 J10 GN...

Страница 25: ...0 Vdd A6 A4 A11 A8 RFU NC Vss U9 W9751G6IB Vdd1 A1 NC2 A2 Vss1 A3 DQ14 B1 VssQ2 B2 UDM B3 A4 N8 A6 N7 Vdd4 M9 A0 M8 A2 M7 CS L8 CAS L7 ODT K9 CLK K8 RAS K7 Vdd3 J9 CLK J8 VssDL J7 DQ5 H9 VssQ10 H8 DQ2...

Страница 26: ...HPD1 CLKA DA2 CLKA DDCASCL HPD1 CEC HDMIA_5V DDCA_SDA DDCA_SCL DA1 DA1 DA0 DA0 DA2 DA2 CLKA CLKA RXACLKP RXACLKN RXA0P RXA0N RXA1P RXA1N RXA2P RXA2N DDCASDA DDCA_SCL DDCA_SDA HOTPLUGA SCL HDMIA_5V CEC...

Страница 27: ...22 PI5V330 U22 PI5V330 S1A 2 S1B 5 S1C 11 S1D 14 S2A 3 S2B 6 S2C 10 S2D 13 IN 1 DA 4 DB 7 DC 9 DD 12 VCC 16 GND 8 EN 15 C99 560p C99 560p 1 2 DD16 ESD DD16 ESD CON12 VGA CON12 VGA 5 10 4 9 3 8 2 7 1 1...

Страница 28: ...P LOGO H7 DIP LOGO H7 1 Q24 NC 3904 Q24 NC 3904 1 2 3 C153 22n C153 22n C169 1u C169 1u C156 22n C156 22n R231 47k R231 47k 1 2 S N H5 S N H5 1 R230 10k R230 10k 1 2 C163 1u C163 1u R182 4 7k R182 4 7...

Страница 29: ...5 Troubleshooting and Schematic Diagrams for DVD Module 1 Power supply trouble 2 Display trouble 3 Audio trouble 4 Function trouble AL09 Trouble Shooting...

Страница 30: ...U5is normal Check if the 3 3V and1 8V supply is normal Updatc the softwarc for flash U5 is ok Check the U5 and the periphery circuit Power supply trouble NO signal N Check the mainboard suplly for dvd...

Страница 31: ...uble NO signal and the laser apparatus working is normal Checd the video output circuit Update The FLASH U5 Display color abnormal missing color Update the flash U5 Check the XT1 U5 and the video outp...

Страница 32: ...NO sound No sound sound little Check the power supply for U7 Check the power supply for 12V and R58 Check the circuit betweer U5 output and U7 Check the output circuit of U7 and check U7 Check the cor...

Страница 33: ...weldig or abnormal Change or repair the damaged component Connect the cable again Check the voltage for R78 Check the circuit between CN2 and R78 When read the disc laser is normal IF the CDLD DVD LD...

Страница 34: ...is normal 1 Checd the ciruit between U5 and U6 2 Checd the Periphery circuit for U6 Checd the reference voltage is normal for VREF1 VREF2 1 Checd the periphery circuit for VREF1 VREF2 2 Checd U5 and p...

Страница 35: ...5 6 7 8 9 10 11 13 15 12 14 29 33 34 35 36 37 38 16 17 18 19 20 21 22 23 24 65 78 77 76 75 74 73 72 71 70 69 68 67 66 62 25 26 27 28 30 31 32 DVDA DVDB DVDC DVDD RFSUM RFIS AGCCAP RF_AVDD AD_AVDD AD_A...

Страница 36: ...6 Exploded Views...

Страница 37: ...nter factory menu INPUT 2580 2 PC ADC adjust enter ADC ADJUST in factory menu you can use Checker Board pattern signal or Gray Scale pattern from you PC use remote control select AUTO ADC then use rig...

Страница 38: ...ng in factory menu you can select Contrast Brightness Color Sharpness to adjust in Curve Type menu Usual we only change the value of Curve Point 50 the picture quality will present in the standard mod...

Страница 39: ...e red indicator light into green It has access to USB upgrade condition while the indicator light turns green to red again and now you can release the POWER key Please do not power off during the upgr...

Страница 40: ...ssfully there will be the following dialog If the connection is not successful then will be and now you need to check the tool connection Step 2 Choose Read make the BIN file will be burning into the...

Страница 41: ...0 5V 8 Key Parts 8 1 Inverter Board 8 2 Panel Pin No Symbol Description 1 2 VCC 12V 3 Von off On off Control 4 Brightness 5 6 GND Ground...

Страница 42: ...ial data input Channel E0 even 14 GND Ground 15 RXE1 Negative LVDS differential data input Channel E1 even 16 RXE1 Positive LVDS differential data input Channel E1 even 17 GND Ground 18 RXE2 Negative...

Страница 43: ...SECAM PAL B G D K I TV function SECAM L B G D K PC Resolutions up to 1920 1080 60HZ Video HDMI Resolutions 480i p 576i p 720p 1080i p Input Left Right PC AUDIO Output Earphone SPDIF Speaker 2 3 watt...

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