Memorex MLT1532a Schematic

Is it live or is it Memorex?

SERVICE MANUAL

TM

MLT1532A

15”LCD Stereo monitor

with integrated TV Tuner

POWER INPUT

CON3

12

DCJACK

3

CON1

1
2
3
4

CON4-2.0mm

PW-ON/OFF-INV2

R327

R327

4.7k

4.7k

5V DC-DC

L1

D2
SK34

15uH/2AL115uH/2A

1

POWER-ON/OFF7

From PIC MCU

From MSD116

CA78

R329 4.7k

5VMst

C3

0.1u

5Vstb

R319 4.7k

R320

1K

C215

0.1u

Q26
3904

PW-ON/OFF-INV 2

2

3

R4
68K

+

+

R6
15K

PWR-ON/OFF7

PWR-ON/OFF

+

+

CA1

470uF/16V

R339 100R

R338 100R

470uF/16V

12VU

R365
NC

POWER-ON/OFF7

From PIC MCU

F1

+

+

12VU 12VU

C9 0.047u

C10 0.1u

CA5 470uF/16V

R326 4.7k

Q29
3904

R324

4.7k

C15

0.1u

R390
18k

5VMst

DD20
NC

R323 4.7k

Q28

3904

C12

0.1u

0.1u

R389
18k

for Inverter

U3
IRF7314

1

S1

2

G1

3

S2

4

G2

DD21NCDD21
NC

5VA

8

D1

7

D1
D2
D2

12VA

6
5

STANDBYPOWER

12VU

R332 NC

Reserved for External MCU Power Manage

R45NCR45

NC

R381 NC

R351

NC

R25
10K

C143 NCC143 NC

NC

CA8NC+

5Vstb

Q15
NC

+

R382
0R

12VU

SYS_ON

SYS_ON

C14
NC

C6

3.9n

R49

R5
10K

8

4.7K

Note:Left pin9 floating is defautl to Enable the DC-DC

5Vstb

D32
NC

5VMst

C7

0.1u

9
8

10

11

6

U1
MP1411U1MP1411

VCC4SW

EN
COMP

SS

GND

GND

5

C2

0.01u

2

BS

1

NC

3

NC

7

FB

POWER CONTROL

PANELPOWER

12VU

R335
10K

ON_PANEL7

R22
10K

R27

1K

C103 0.1u

3904

TOINVERTER

VCC-Panel12VA

R7 NC

5VA

R386 NC

L2
U5
MP1411

VCC4SW

9

EN

8

COMP

C13

C13

0.01u

R44

Q9

7.5k

R52

4.7K

C70

C70

0.1u

0.1u

10

SS

11

GND

6

GND

5

C5

0.01u

2

BS

1

NC

3

NC

7

FB

15uH/2A

1 2

3

D8
SK34

Output = 5V R10: 68K R12: 15K
Output =3.3V R10: 39K R12: 15K

R10
68k

R12
15k

+

+

470uF/16V

VCC-Panel

R388
0R0R

ADJ-PWM7

C69

CA3

0.1u

ON_PBACK7

R336

R336
10K

10K

R19
10k

R17 4.7kR17 4.7k

5VMst

R26 NC

R24 1k

5VMst

R15
10K10K

R16 1kR16 1k

3

Q6

1

3904

2

Note: Left CA6 NC if want to output PWM puls

R20
10k

R21 100

3

Q7

1

3904

2

PB-ADJUST

+

CA6

+

10u

10u

PB-ON/OFF

PB-ADJUST
PB-ON/OFF

12VU

CON6_2.0mm

6
5
4
3
2
1

CON2

CON2

1

PbPr INPUT&AVOUTPUT

CON5

CON5

Y

1

Y

3

U

9

5

V

10

11

8

R

12

7

L

13

2

V

V

14

4

R

15

16

6

L

AV1

Y3

Pb

Pb 3

Pr

Pr 3

HD-R

HD-R 3

HD-L

HD-L 3

SPDIF_out

LINEOUTR

LINEOUTR 10

LINEOUTL

LINEOUTL 10

SV1-Y

SV1-C

AV1-V

2

3

DD4
ST5V6

2

3

DD5
ST5V6

2

3

DD1
ST5V6

Keep trace width (12mil+)
keepAGNDtrace with signal
R:10ohm,75ohm C:10n Location near MST.IC

SV2-Y

L24 0

C40

C73
NC

SV2-C

L29 0

C76
NC

AV2-V

L14 0

C31
NC

L12 0

SV1-Y

1

1

1

SV1-C

C20
NC

L13 0L13 0

C25
NC

L11 0L11 0

C18
NC

330p

C74
330p

C32
330p

C21
330p

C27
330p

C19
330p

R50
75

R5375R53
75

R39
75

R31
75

R3575R35
75

R30
75

R48 10

R51 10

R37 10

R29 10

R33 10

R28 10R28 10

C42 10n

C77 10n

C29 10n

C17 10n

C23 10n

C16 10n

SV2-Yin 7

SV2-Cin 7

AV2-Vin+ 7

SV1-Yin 7

SV1-Cin 7

AV1-Vin+ 7

CONNECTOR

DVD CONNECTOR

DD33

R46 10k

IR_in7

DVDIR_EN7

R47 1k

DD33

1

2

BAV99

AV2-V

SV2-C

SV2-Y

AV2-L

AV2-R

3

PW-ON/OFF-INV

1

CON25

CON25

1
2
3
4
5

AV2-L

AV2-R

DVD_R3

DVD_L3

DVD_V3

DVD_U3

DVD_Y3

R54
10k

6
7
8
9

CON9-2.0

CON9-2.0

DVD_R

DVD_L

DVD_V

DVD_U

DVD_Y

PW-ON/OFF-INV

12VA

NC/DVD_INPUT

NC/DVD_INPUT

16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

CON4

CON4

AV&S-Videoinput

CON31 S&VdieoCON31 S&Vdieo

AV1-V

7

V

AV1-L

9

L

AV1-R

10

R

SV1-Y

3

1

5

SV1-C

6

8

4

2

AV1-L

AV1-R

2

3

DD2

DD2
ST5V6

ST5V6

2

3

DD3

DD3
ST5V6

ST5V6

AV2-L

AV2-R

R40 10k

C34

C34

R41

560p

560p

12k

R42 10kR42 10k

R43

C38

C38

12k

560p

560p

R32 10kR32 10k

1

R36 10kR36 10k

1

R34

C26

12k

560p

R38

C33

12k

560p

C35 2.2u

C37 2.2u

C22 2.2u

C28 2.2u

KeepAGNDtrace with signal
Keep spacing for L/R
Keep trace width (12mil+1)
C Location near MST.IC

AV2-Lin 7

AV2-Rin 7

AV1-Lin 7

AV1-Rin 7

SPDIF_OUT

SPDIF_O7

R55 330

R60
100R

2

3

DD34

DD34
ST5V6

ST5V6

SPDIF_out

1

2

YPbPr INPUT

DVD_Y2

DVD_U2

DVD_V2

5VA 5VSY

R107 100R107 100

CA11

CA11

22uF/12V

22uF/12V

CA20

2

3

DD42

DD42
ST5V6

ST5V6

CA20

10uF/12V

10uF/12V

CA21

CA21

10uF/12V

10uF/12V

10uF/12V

10uF/12V
CA22

CA22

1

2

3

DD41

DD41
ST5V6

ST5V6

Y2

Pb2

Pr2

R8675 R8675

R8775 R8775

R9775 R9775

R9675 R9675

R10275 R10275

R8875 R8875

CA24 10uF/12V

CA24 10uF/12V

CA25 10uF/12V

CA25 10uF/12V

CA26 10uF/12V

CA26 10uF/12V

2

3

DD43

DD43
ST5V6

ST5V6

1

+

+

+

+

+

+

C80

C80

0.1u

0.1u

+

+

+

+

+

+

+

+

1

R16810K R16810K

R16610K R16610K

R15610K R 15610K

5VSY

R17010K R17010K

R16510K R16510K

R16310K R16310K

R10410K R10410K

R15910K R15910K

U14

Comp_Y
Comp_Pb
Comp_Pr

R16710K R16710K

R16410K R 16410K

R169

R169

10K

10K

R111

R111

10K

10K

U14

2

S1A

VCC

5

S1B

11

S1C

14

10
13

R145
1K

656_SEL 0: Component selected
656_SEL 1: Combo DVD selected

Y

Pb

Pr

DA

S1D

DB
DC

3

S2A

DD

6

S2B
S2C
S2D

EN

1

IN

GND

P15V330

656_SEL

656_SEL 7

R120 NC-0R120 NC-0

R126 NC-0R126 NC-0

R127 NC-0R127 NC-0

Reserved for No Combo DVD input

16

4
7
9
12

15
8

M_Y

M_Pb

M_Pr

5VA

M_Y
M_Pb
M_Pr

+

+

CA10 10uF/12V

CA10 10uF/12V

C79

C79

0.1

0.1

R79 470R79 470

R81 47R81 47

R83 47R83 47

R84 47R84 47

R90 47R90 47

R91 47R91 47

R92 47R92 47

C43 1000pC43 1000p

C45 0.047uC45 0.047u

C48 0.047uC48 0.047u

C49 0.047uC49 0.047u

C56 0.047uC56 0.047u

C57 0.047uC57 0.047u

C58 0.047uC58 0.047u

7

SOY

Y+

7

7

PB+

7

PR+

7

Y-

7

PB-

7

PR-

5VSY

R17210K R17210K

HD-L-S

HD-R-S

R17410K R 17410K

R17710K

R17610K R17610K

R17310K R17310K

DVD-L-S

DVD-R-S

R17510K R 17510K

R18010K R 18010K

R17810K R 17810K

HD-L2

HD-R2

DVD_L2

DVD_R2

HD-LHD-L

HD-RHD-R

R114 10kR114 10k

R117 10k

2

3

DD29

DD29
ST5V6

ST5V6

2

3

DD52

DD52
ST5V6

ST5V6

R116
12k

R118
12k

1

1

C255
560p

C266
560p

R80 10kR80 10k

R85 10kR85 10k

Comp_L

Comp_R

+

CA1210uF/12V+CA1210uF/12V

R82

R82

C47

C47

12k

12k

560p

560p

10uF/12V

10uF/12V

+

+

CA14

CA14

HD-R-S

C254

C254

R89

R89

560p

560p

12k

12k

+

+

DVD-L-S

CA1510uF/12V

+

+

DVD-R-S

CA1610uF/12V

5VA

CA18 10uF/12V

HD-L-S

C81 0.1

16

U15

U15

12

X0

14

X1

VCC

15

X2

11

X3

1

Y0

5

Y1

GND

2

Y2

INH

4

Y3

VEE

74HC4052

74HC4052

656_SEL

656_SEL 0: Component Audio selected
656_SEL 1: Combo DVD Audio selected

Comp_L

R148 NC-0

Comp_R

R154 NC-0

Reserved for No Combo DVD input

+

+

C Location near MST.IC

R131
1K

M_L

M_R

13

X

3

Y

8
6
7
9

B

10

A

C50 2.2u

C55 2.2u

HD-Lin 7

HD-Rin 7

Keep AGND trace with signal
Keep spacing for L/R
Keep trace width(12mil+)

M_L

M_R

VGAINPUT

5VMst

1

2

DD48
BAT54C

VGA-5V

3

CON7 VGACON7 VGA

15

14

13

12

11

16

17

DDC-SDA

DDC-SCL

Connect R110,R113 in ISP on VGA mode

U6 24C21U6 24C21

1

NC

2

NC

3

NC
GND4SDA

If U6=24C01/24C02,you should
solder R125 and left r119float

5
10
4
9

VGA-B

VGA-G

VGA-R

R110 100RR110 100R

R113 100RR113 100R

8
7
6
5

L18 0L18 0

L19 0L19 0

L20 0L20 0

VGA-5V

VGA-HS

VGA-VS

R119

R119
10K

10K

R123 100R123 100
R124 100R124 100

R125NCR125
NC

1

2

3

DD7

DD7
ST5V6

ST5V6

VGA-TXD 7

VGA-RXD 7

DDC-SCL
DDC-SDA

2

3

DD8

DD8
ST5V6

ST5V6

R12110K R12110K

1

1

2

R9975R99

R9875R98

75

75

3

DD9

DD9
ST5V6

ST5V6

DD44 ST5V6DD44 ST5V6

DD45 ST5V6DD45 ST5V6

R12210K R12210K

3
8
2
7
1
6

VCC

VCLK

SCL

R9310R93

R9410R94

R9510R95

R10075R100

75

VGA-HS

1

VGA-VS

23

DDC-SDA

1

DDC-SCL

23

10

10

10

C59 1000pC59 1000p

C60 0.047uC60 0.047u

C61 0.047uC61 0.047u

C62 0.047uC62 0.047u

SOG 7

VGA-Bin+ 7

VGA-Gin+ 7

VGA-Rin+ 7

VGA-HS

VGA-VS

C65

C65
560p

560p

C68

C68
560p

560p

C63 2.2u

C66 2.2u

VGA-Lin

VGA-Rin

7

7

CON8 RCA-2R

CON8 RCA-2R

13

L

L

R103 100R103 100

R105 100R105 100

R109

R109

R1082.2k R1082.2k

2.2k

2.2k

HS_RGB

VS_RGB

7

7

2

R

R

2

DD10

DD10
ST5V6

ST5V6

3

R112 10kR112 10k

1

2

DD11

DD11
ST5V6

ST5V6

3

R106

R106
12k

12k

R115

R115
12k

12k

R101 10kR101 10k

1

3

2

3

DD24

DD24
BAV99

BAV99

1

2

CLKB- DB2- DB2+

3

DD25

DD25
BAV99

BAV99

1

CON9NCCON9

21

21

DATA2 SHIELD

DATA1 SHIELD

DATA0 SHIELD

CLK SHIELD

22

22

23

23

DDC/CEC GND

+5V POWER

20

HOT PLUG

20

NC

R155 NC-2KR155 NC-2K

HOTPLUG7

R161 10kR161 10k

DATA2+

DATA2-

DATA1+

DAT1A-

DATA0+

DATA0-

VHD_DVI VHD_VDDP

VHD_VDDC

VHD_AUPLL

106

67

75

92

4

29

113

U9

U9

AVDD_AUPLL

RXB2P
RXB2N
RXB1P
RXB1N
RXB0P
RXB0N
RXBCLKP
RXBCLKN
DDCBSDA
DDCBSCL

5

6

7

8

U12

U12

24C02

24C02

5VHD

2

C131

C131

C115

3

DD40

DD40
BAV99

BAV99

1

4

GND

SDA

3

A2

SCL

2

A1

WP

1

A0

VCC

C115

0.1u

0.1u

Capacitors for ESD.
Place close to BAV99

SYS-RESET6,7

C134

C134

0.1u

0.1u

0.1u

0.1u

RXB0N

108

RXB0P
RXB1N
RXB1P
RXB2N
RXB2P
RXBCLKN
RXBCLKP
DDCBSCL
DDCBSDA

RXB0N

109

RXB0P

111

RXB1N

112

RXB1P

114

RXB2N

115

RXB2P

117

RXBCKN

118

RXBCKP

124

DDCBSCL

125

DDCBSDA

R134 100R134 100

R138

R138
10K

10K

35

HWRESET

40

R147 10R147 10

SCL6,7

R149 10

SDA6,7

INT

37

SCL

38

SDA

2

1

R133 10
R135 10
R137 10
R136 10
R139 10
R140 10
R141 10
R142 10
R143 10
R146 10

DD49

DD49
BAV99

BAV99

3

DB2+

DB2­DB1+

DB1­DB0+

DB0­CLKB+

CLKB-

2

3

DD27

DD27
BAV99

BAV99

1

R157
1K

Q12

Q12
3904

3904

2

3

DD26

DD26
BAV99

BAV99

1

1
2
3
4
5
6
7
8
9
10

CLK+

11
12

CLK-

13

CEC

14

NC

15

SCL

16

SDA

17
18
19

2

3

DD47

DD47
BAV99

BAV99

1

DD39

DD39
BAT54C

BAT54C

1

5VHD

2

1

2

DD50

DD50
ST5V6

ST5V6

3

3

2

3

DD46

DD46
BAV99

BAV99

1

R152 22KR152 22K

R153 22KR153 22K

C129

C129

0.1u

0.1u

119

VDDC

VDDC

VDDC

AVDD_DVI

AVDD_DVI

AVDD_DVI

AVDD_DVI

MST3383MB

MST3383MB

VHD_MPLL

VHD_PLL

102

90

39

53

65

73

86

32

123

126

AVDD_DVI

AVDD_PLL

AVDD_MPLL

88

VDDP

VDDP

VDDP

VDDP

VDDP

VDDP

VDDP

VDDP

83

DATA0

82

DATA1

81

DATA2

80

DATA3

79

DATA4

78

DATA5

77

DATA6

76

DATA7

HD0

62

DATA8

DATA9
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15

HD1

61

HD2

60

HD3DB1- DB1+ DB0- DB0+ CLKB+

59

HD4

58

HD5

57

HD6

56

HD7

55

HD[0..7] 11

R129 100RR129 100R

R130 390R130 390

R1441MR144

R128 0R128 0

AUSD_IN 7
AUSCK_IN 7
AUWS_IN 7

1M

Note: HD[0..7] should be >=12mil

C92NCC92
NC

Note: HDMI_CLK should be >=15mil

VHD_DVI

R132

R132
10K

10K

C125

C125

2

22P

22P

3

C126

C126

1

22P

22P

Y1

14.318MHZY114.318MHZ

HDMICLK 11

SPDIF_IN 7

DATACK

SOGOUT/DE

FIELD/GPO

DATA16
DATA17
DATA18
DATA19
DATA20
DATA21
DATA22
DATA23

HSOUT
VSOUT

AUSCK

AMUTE

SPDIFO

50
49
48
47
46
45
44
43

68
69
70
71
72

96

AUSD

97
98

AUWS

99
100

MCKO

101

120

REXT

36

A0

34

XIN

33

XOUT

POWER FOR MST3883MB

10uH/300mA

10uH/300mA

5VHD

5VA

AMS1117-2.5

AMS1117-2.5

3.3VHD

L21

L21

U10

U10

C89

C89

+3.3V_De

FB220/300mA

FB220/300mA

L26 FB220/200mAL26 FB220/200mA

L27 FB220/100mA

L28 FB220/100mA

L23 FB220/200mAL23 FB220/200mA

5VHD

4

ADJ

OUT

ADJ

OUT

IN

IN

321

2.5VHD

+

+

CA38

CA38

C90

+

+

CA13

CA13
47uF

47uF

0.1u

0.1u

L33

L33

10uF

10uF

C90

10uF

10uF

0.1u

0.1u

3.3VHD

+

+

C94

C94

CA30

CA30

0.1u

0.1u

VHD_PLL

C1001uC100
1u

VHD_MPLL

C1011uC101
1u

C1021uC102

C127

C127

1u

0.1u

0.1u

L22 FB220/200mAL22 FB220/200mA

L25 FB220/100mAL25 FB220/100mA

C96

C96

C951uC95

0.1u

0.1u

1u

C104

C104

C105

C105

0.1u

0.1u

0.1u

0.1u

VHD_VDDC

C87

C87

C86

C86
1u

1u

C88

C88

0.1u

0.1u

0.1u

0.1u

VHD_AUPLL

C911uC91
1u

VHD_DVI

C130

C97

C97

0.1u

0.1u

C130

C99

C99

0.1u

0.1u

0.1u

0.1u

VHD_VDDP

C108

C107

C107

0.1u

0.1u

C108

C128

C128

0.1u

0.1u

C114

C114

0.1u

0.1u

0.1u

0.1u

RPU1/MCL

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

5

31

54

66

74

30

GND

GND

87

91

89

103

104

105

107

RPU2/MDA

GND

GND

GND

GND

110

116

122

127

42

I2C ADDR:0x9C

R1584.7k R1584.7k

MCL-HDCP

MDA-HDCP

MDA-HDCP

5VHD

100100

100100

MCL-HDCP

41

R1504.7K R1504.7K

5VHD

R1514.7K R1514.7K

C116

C116

U13NCU13

0.1u

0.1u

8

7

R160R160

6

R162R162

5

1

A0

VCC

2

A1

WP

3

A2

SCL

4

GND

SDA

NC

4