Akai DVR-4025-VSS Service Manual

DVD HOME THEATER SYSTEM

Model:

DVR4025VSS

SERVICE MANUAL

www.akai.ru

1.CONTENTS

Title Page

1. CONTENTS

2. BLOCK DIAGRAM (CABLE CONNECTIONS)

3. POWER SUPPLY

4. FUNCTIONAL DESCRITPIONS

4.1 DVD MPEG board

4.2 Front Panel

4.3 SMPS

4.4 DVD Driver

5. DESCRIPTION OF THE INTEGRATED CIRCUITS

5.1 SWPS TRANSFORMER

1

2

3

4

4

10

10

12

13

13

5.2 FRONT PANEL DRIVER IC FRO VIR (PT6311)

5.3 SWPS CONTROLLER IC (5M02659)

5.4 SWPS PROGAMMABLE SHUNT RE
GULATOR (FAIRCHILD TL 431)

5.5 LINE FILTER(2 x 6.8mH)

14

18

22

23

1

1

DVD Service Manual

2 BLOCK DIAGRAM(CABLE CONNECTIONS)

1

2

DVD Service Manual

1

3

DVD Service Manual

4.FUNCTIONAL DESCRIPTIONS

4.1DVD MPEG board

SEIAL

EPROM

16M
FLADH

64M
SDRAM

MT1379DE

MT1336E

AUD0

DOUT

AUD2

AUD1

AM/FM
TUNER

L/R

4053

DAC

WMA8722

CVBS

R
G

B

KARAOKE

CENTRE/SUBWOOF

SURROUND L/R

FRONT L/R

1

4

DVD Service Manual

E

RFVCC

TROPEN

TROUT

TRCLOSE

D

C

TROPEN

L32

L33

NOT STUFF

NOT STUFF

FB 0805

FB 0805

RFVCC

RVCCIN

000

000

R143

R141

L3Ferrite Bead

B

A

+

C9

220u

CB8

0.1u

1206

C151

220u

L4Ferrite Bead

+5V DV33

+

+PS5VDV33

CB11

C6

+

1206

L1Ferrite Bead

Power Supply

CN1

SOT-223

NOT Stuffed

U1

1117-3.3

3
.1u
0

IN

G

1

220u

OUT

2

12345

TRIN

CB74

0.1u

39

10K

R146

R145

10K

CB76

0.1u

10K

R150

LIMIT

STBY

IOA

PWMOUT2

PWMOUT2

AVCC

1206

AVCC

RVCCIN

NOT Stuffed

D6

1N4001

NOT Stuffed

D7

1N4001

40
41
42
43
44
45

10K

R149

46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

U2

CB94

SDATA

SDEN

SCLK

C148

URST

+

SCLK

SDATA

SDEN

URST

RVCCIN

C140

47u

+

22Ohm

R160

Q27

2SB1132

R159

22Ohm

Q26

2SB1132

+

C136

47u

CB77

0.1u

+

220u

C146

SW1

100K

15n

C135

C130

C134

R158

R156 RES

LRFRP

C129 27p

R153

0Ohm

383736353433323130292827262524232221201918171615141312111098765432

VDD

VFO13

AGNDX

AGNDX

GND

UDGATE

HDGATE
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
IO8
IO9
IOA
IOB

VDDS

XCK16M

SCLK

GNDS

SDEN

SDATA

RST

DPDMUTE

AGNDP
AGNDX
AVDDP

VCON

AVDDF

AGNDX

AGNDF

666768697071727374757677787980818283848586878889909192939495969798

65

CB97

0.1u

0.1u

47u

LDO1

LDO2

D5

CB2

L36

L35

CB1

D4

390p

390p

10p

C131

C133

C132

HTRC

R157 27K

DPFN

DPFO

AGNDX

HALLCOS

AVDDM

COSPHI

OP-

OPO

1N4148

0.1u

10uH

10uH

0.1u

1N4148

BDO

HTRC

BDO

RFRP

TRLP

CRTP

HTRC

GNDP

TRLPA

LRFRP

HRFRP

CRTPLP

DEFECT

AGNDM

REFCOS

HALLSIN

SINPHI

REFSIN

MOP

SW1

SW2

SW0

OP+

SW1

MDI

E

L34FB 1206

1

NC

NC

MD

HFM

LD-CD

VR-CD

LD-DVD

GND-LD

VR-DVD

CB85

33n

C16

470p

+

CB88

CB29

V2P8 V1P4

C18

RFL

CSO

TEO

RFRP

FEO

+

V2P8

V1P4

V20

FEO

RFL

CSO

TEO

LVL

V20

TM4

TEO

FEO

CSO

VDDP

AVDDT

VREFO

V2REFO

MT1336E

MON

AGNDX

AGNDX

OSP

RFFGC

OSN

RFGCU

CEON

CEOP

RFGCI

CB83

0.1u
CB84

CB82

0.1u

C139

V20

IOA

V20

10u

C138

+

10K

R148

C128

100u

+

C

D

IOA

A

B

RFO

F

F

E

A

B

D

RF

VC

VCC

CD/DVD

GND-PD

0.1u

10u

0.1u

0.1u

0.1u

10u

RFON

RFON

TM1

TM2

TM3

RFON

AGNDT

AGNDO

DVDRFIP

CDD

CDC

CDB

CDA

DVDRFIN

0.1u
C141RES

120p

RFO

R151

R147

R152

24232221201918171615141312111098765432

C

T-

F-

F+

T+

CB109

RVCCIN

0.1u

CB89

RFOP

RFOP

RFOP

DVDD

C1431uCB107

C1421u

D

A

10K

100K

100K

CB80

CB90

CON1

0.1u

CB86

1

WVDD

AGNDX

AGNDX

AVDDO

WOBSO

MT1336E

WGND

128

RFSUBO

127

LDO2

126

LDO1

125

MDI1

124

MDI2

123

AGC3

122

AGC2

121

WAVDD

120

AGC1

119

WGAND

118

SGND

117

TNI

116

TPI

115

SVDD

114

CDFON

113

CDFOP

112

SD

111

SC

110

AVDD

109

IR

108

AGND

107

SB

106

SA

105

MD

104

MC

103

DVDC

DVDB

DVDAMAMB

99

100

101

102

C1451u

C1441u

C142, C 143, C144, C145

SMD0805 Package CAP.

B

C

1Ohm

R162

1Ohm

R161

Q23

2N3904

Q24

2SK3018

Q25

2SK3018

U18BA5954FP HSOP28

1Ohm

R164

0.1u

0.1u

0.1u

SF-HD60AV/0.5mm,24Pin

1Ohm

R163

LDO2
LDO1
MDI

C147

15n

0.1u

CB79

CB78

0.1u

33K

R165

E

F

FMSO

TRSO

+PS5V

SL-

SL+

CB100.1u

171816

PGND

VOLD-

VOTK-

VOTK+

VOLD+

PGND

VOSL+

VOFC+

VOFC-

VOSL-

9

10

12

14

13

11

SP+

SP-

V1P4

STBY

C149150p

R16620K

211920

24

27

232225262930

GNDGND

BIAS

CTK2

CTK1

VINTK

VINLD

VNFTK

PVCC2

PREGND

PVCC1

CF2

CF1

VNFFC

VCC

VOSL

VINSL+

VINSL-

1

3

2157

645288

CB950.1u

R167

10K

R169 20K

R168

20K

C150150p

V1P4

DMSO

+PS5V

TO-9

Q? 8550

+5VP

TO-92

8550
Q?

47u

C153

+

CB96

0.1u

STBY

GND

RES

VINFC

C152

+

C137

10u

FOSO

12345

CN2

JST5 Pin 2.0mm Pitch

LM+

LM

-

TROUT

TRIN

220

R?

2

R?220

ADIN

OPO

750K

R170

RES

R4 10K

C139

TO-92
8050

Q?

TO-92

Q?8050

C139

RES

R5910K

R?1K

R?1K

TROPEN

TRCLOSE

OP+

OP-

R171

750K

V1P4

12345

6

CN3

R173

330K

1Ohm

R174

R172

330K

SP+

LIMIT

SL-

SL+

SP-

D

C

B

JST6 Pin 2.0mm Pitch

A

4 4

3 3

2 2

1

DVD Service Manual

E

DV33

+PS5V

CB4

0.1u

L9FB 0805

L10RES

CB105

0.1u

FVCC

CB104

0.1u

C44

47u

+

AD0

37

29

131410

A20

VPP

VCC

WP#

DQ01

DQ00

A05

A04

A03

A02

A01

A00 RESET

WE

CE

25 12

114726

28

A3

A2

A1

PRD#

A4

PCE#

A5

PWR#

R42

+PS5V

DQ26

DQ29

DQ31

DQ30

DV33

GND

133

132

131

130

129

128

127

126

125

RD24

RD25

RD26

RD27

RD28

RD29

RD30

RD31

DVDD3

HIGHA7

AD7

AD6

AD5

AD4

DVDD3

AD3

AD2

AD1

DV33

AD0

AD2

AD1

AD5

AD3

AD4

AD7

AD6

CB18

CB17

DV33

CB15

CB14

DV33

CB13

CB5

+P5V

27

46

BYTE

GND0

GND1

OE

RY_BY

15

C2

RES

+

DV33

R4310K

10K

Q1

2N3906

R42

10K

D1

1N4148

MA2

GND

MA3

DQM0

DQM1

MA1

BA1

MA10

MA0

V25

124

123

122

121

120

119

118

117

116

115

BA1

RA3

RA2

RA1

RA0

RA10

DVSS

DQM0

DQM1

DVDD2

AD0

IOA0

IOA1

DVDD2

IOA2

IOA3

IOA4

IOA5

IOA6

IOA7

V25

A3

A4

A5

A0

A6

A7

A2

A16

A1

0.1u

0.1u
V25

0.1u

0.1u

V25

0.1u

0.1u

D12

1N4001

DQ11

DQ5

DQ13

DQ9MA9

DQ1

DQ3

DQ7

DQ8

DQ15

104611

DQ4

DQ5

A4A5A6A7A8

2930313233

MA5

DQ11DQ5

474650

DQ4

DQ5

A4A5A6A7A8

2930313233

MA5

474650

DQ4

DQ5

A4A5A6A7A8

2930313233

MA5

DQ21

R39 RES

10Ohm

Front Panel Interface

L6

4.7Ohm

DQ6

13

DQ6

MA6

MA7

DQ15

DQ13

53

DQ6

MA7

MA6

DQ1

DQ3

53

DQ6

MA6

MA7

DCS#

DRAS#

RN1 33x4

RAS#

CS#

DQ22

DQ23

R40 RES

R41 RES

JST6 Pin 2.54mm Pitch

DACV33A

FB 0805

DQ10

42

445245

DQ7

DQ8

DQ9

A9

22

343637

MA10

MA8

SD33SD33

1

DQ7

A9

22

343738

MA8

MA9

MA10

1

DQ7

A9

22

343738

10
MA

MA9

MA8

DCAS#

DWE#

WE#

CAS#

P3.1

SDA4

P3.0

R28 RES

R20 RES

R19 RES

IR

P1.5VFD_SDA

R27 33

12345

CB103

4749485051

DQ10

A10/AP

35

MA11

14

VCC

A10/AP

35

MA11

14

VCC

A10/AP

35

MA11

IOA20

R9 RES

P1.4VFD_STB

0.1u

DQ14

SD33

1

14

DQ15

CLK

SDCKE

VCCQ

CLK

SDCKE

VCCQ

CLK

SDCKE

C41

C38

+

DACV33B

CKE

62728

VSSQ

VCCQ

CKE

62728

VSSQ

VCCQ

CKE

43

3627

VCC

VCC

VCC

VSSQ

VSSQ

VSSQ

VSSQ

VCCQ

VCCQ

VCCQ

VCCQ

DQMLWECAS

RAS

CS

DCAS#

DRAS#

DCS#

VSSQ

VSSQ

VSSQ

CAS

RAS

CS

19

DCS#

DCAS#

DRAS#

VSSQ

VSSQ

VSSQ

CAS

RAS

CS

19

DCAS#

DCS#

DRAS#

100p

100u

CB102

0.1u

VSS

NC

DQMH

NC

VSS

VSS

1516171819

41

39

40

54

28

DQM0

DWE#

DQM1

41

54

VSS

VSS

VSS

DQM

WE

161718

39

DQM1

DWE#

41

54

VSS

VSS

VSS

DQM

WE

161718

39

DQM0

DWE#

DACV33C

L8

FB 0805

CB52

CB48

CB47

SD33

CB45

CE29

+

RES

(2.7uH)

R4 100K L5

R5 33Ohm

CB30

0.1u

C154

220u

+

CB27

0.1u

53

DQ11

DQ12

DQ13

DQ14

A11

BA0/A13

BA1/A12

38

20

21

BA1

SDCLK

BA0 DQ12

435249

VCC

VCC

VCCQ

A11

BA0/A13

BA1/A12VCCQ

20

21 3

SDCLK

DBA0

DBA1

435249

VCC

VCC

VCCQ

BA0/A13

BA1/A12VCCQ

A11

20

21 3

DBA0

SDCLK

DBA1

P1.5

R8 RES

P1.3VFD_SCK

6

L7

FB 0805

AD3

AD2

AD0

AD1

AD4

AD5

AD6

252627

28

3233343511

D0D1D2

D3

D4D5D6

TSOP40

OPTIONAL

U9SST39VF080

A0A1A2A3A4A5A6A7A8

21201918171615

A2

A4

A5

A0

A1

A3

0.1uF

0.1uF

0.1uF

0.1uF

47uF

C11

RES

(1nF)

R11 1K

C14

22p

Y1

27MHz

C13

22p

R175

33Ohm

R10

CB28

0.1u

C21

V2P8

URST

RFRP

HTRC

BDO

SCLK

SDEN

SDATA

V1P4

V1P4

V2P8

SDEN

SCLK

RFRP

SDATA

HTRC

DQ2

DQ0

E

D

C

B

A

DQ4

2

4125

798

DQ0

DQ1

DQ2

DQ3

A0A1A2

A3

U5 4M16/2M16 SDRAM

54-Pin TSOPII (400mil x 875mil)

232425

26

MA0

MA3

MA4

MA1

MA2

DQ14

DQ9

DQ12

DQ10

DQ8

2

5128

11944

DQ0

DQ1

DQ2

DQ3

A0A1A2

A3

U9 8M8 SDRAM

54-Pin TSOPII (400mil x 875mil)

232425

26

MA0

MA3

MA2

MA4

MA1

DQ7

DQ4

DQ6

DQ0

DQ2

2

5128

11944

DQ0

DQ1

DQ2

DQ3

A0A1A2

A3

U8 8M8 SDRAM

54-Pin TSOPII (400mil x 875mil)

232425

26

MA4

MA1

MA3

MA0

MA2

SDCKE

SDCLK

R32 33Ohm

R31 33Ohm

DCLK

DCKE

DQ18

DQ19

DQ16

DQ20

DQ17

R34 RES

R35 RES

R36 RES

R37 RES

R38 RES

+PS5V

R26

+PS5V

J5

SD33

1206

L11Ferrite Bead

R6

DV33

AD7

D7

8

14

A8

A7

18K

1000p

R7

CB110

CB87

TEO

ADIN

BDO

ADIN

TEO

2910123831

NC

NC

NC

A9

A10

A12

A11

A13

7

56432

36

A10

A9

A11

A13

A12A6A14

Y2Y3Y1Y5Y6Y4VSYNC#

Y3Y2Y1Y6Y5Y4VSYNC#

100K

RFIN

0.1u

C22 1000p

0.1u

RFON

CSO

FEO

RFL

RFON

CSO

FEO

RFL

FVCC

AD2

AD4

AD5

AD6A0AD3

DQ11

A15

RD18

DVSSFGHIGHA0

DQ10

A14

A15

1K

143

RD19

DQ09

DQ08

DQ07

A13

A12

A11

A14A6A11A7A9

A13

A12 AD7

V25

DQ22

DQ21

DQ20

142

141

140

RD20

RD21

DVDD2

HIGHA1

HIGHA2

A8

A9

A11

A10

C36

330p

C35

330p

C37

RES

C34

15n

CB35

0.1u

DQ06

A10

139

RD22

HIGHA3

DQ05

A09

8

A10

DQ23

138

137

RD23

HIGHA4

A13

A12

AD1

DQ04

DQ03

DQ02

A08

A07

A06

18192021222324

A8

GND

DQ24

136

135

134

DVSS

DQM2

DQM3

MT1379_216

HIGHA5

DVSS

HIGHA6

GND

A15

A14

V1P4

30

23

VSSWEVSS

VCC

VCC

RY/BY

RESET

A18

CE

A14

A15

A16

A17

A19

OE

9 39

1

372413

22

40

A19

A15

A17

PRD#

A16

PWR#

PCE#

A18

CB33

R16

C32

HSYNC#

HSYNC#

GND
Y1
DACV33B
Y2
GND
Y3
DACV33A
Y4
GND
Y5
Y6

VSYNC#
ADC_DAT
GND
HSYNC#

V25

DV33

GND

DV33

BDO
GND
ADIN

TEO
CSO
FEO
RFL

AV33

RFIP

C23 1000p

RFOP

RFOP

R13 RES

DACV33C

162

161

160

159

158

FS

SMD LQFP-216

163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216

ICE

TEI

FEI

R14

AV33

DACVSSC

YUV1/C

DACVDDB

YUV2/Y

DACVSSB

YUV3/CVBS

DACVDDA

YUV4/G

DACVSSA
YUV5/B
YUV6/R

BLANK#
VSYN
YUV7
DVSS
HSYN

SPMCLK

SPDATA

DVDD2

SPLRCK

SPBCK
DVDD3

XTALO
XTALI
PRST
DVSS

VFO13

IDGATE
DVDD3

UDGATE
WOBSI
SDATA

SDEN
SLCK

BDO

ADCVSS

ADIN

RFSUBI

TEZISLV

CSO

RFLEVEL

RFRP_DC
RFRP_AC

HRFZC

PWMVREF

PWM2VREF

ADCVDD3

RFDTSLVP

RFDTSLVN
RFIN
RFIP

IREF

123456789

R15 8.2K

CB22

0.1u

C24

47u

+

4.7Ohm

VREF

YUV0/CIN

DACVDDC

PLLVSS

LPIOP

LPION

LPFON

C29 10n

C28 10n

C30 10n

U5 MT1379E

454341393634323044424038353331

DQ15

DQ14

DQ13

DQ12

A19

A18

A17

A16

U118M/16M Flash

48Pin TSOP (Standard Type, 12mm x 20mm)

9

1234567

161748

A20

A17

A19

A16

A18

RES

560

RES

ASDAT2

ASDAT1

ASDAT0

ABCK

ALRCK

ASPDIF

MUTE

ADC_DAT

ACLK

R23

ABCK

ASDAT2

MUTE

ADC_DAT

ASPDIF

DV33

ASDAT0

ACLK

ASDAT1

157

156

155

ASDATA4

ASDATA3

ASDATA2

LPFIP

LPFIN

LPFOP

C31 10n

GND

ALRCK

154

153

152

151

150

149

148

147

146

145

144

RD16

RD17

ACLK

ABCK

DVSS

SPDIF

ALRCK

DVDD3

ASDATA1

ASDATA0

MC_DATA

JITFO

JITFN

PLLVDD3

FOO

TRO

TROPENPWM

PWMOUT1

PWMOUT2

DVDD2

DMO

FMO

10111213141516171819202122232425262728293031323334353637383940414243444546474849505152

V25

GND

R21 10K

R22 15K

R18 20K

R17 750K

R19 18K

C33 100p

FMSO

FOSO

DMSO

PWMOUT2

TRSO

TROPEN

PWMOUT2

DMSO

FMSO

FOSO

TRSO

TROPEN

SDA

SCL

R24

1K

R25

1K

678

SCL

VCC

RST/WP

CB510.1u

DC/NC

RST_/NC

WP/RST_

VSS SDA

123

4 5

U10 EEPROM 24C16 SOP8

URST

URST

C7

10n

D10

RES

R1

1K

R4310K

+

C5

10u

AV33

MA7

MA4

DV33

MA6

MA5

114

113

112

111

110

RA4

RA5

RA6

DVSS

DVDD3

IOA20

A16

A17

IOA18

IOA19

53

54

A17

A19

A18

A20

CB100

0.1u

CB20

0.1u

CB19

0.1u

CB9

0.1u

C10

220u

+

R304.7Ohm

C39

2.2u

0805

109

RA7

DMVSS

DMVDD3

108

RA8

107

RA9

106

RA11

105

CLE

104

CLK

103

DVSS

102

GND

RD8

101

RD9

100

RD10

99

RD11

98

DVDD3

97

DV33

RD12

96

RD13

95

RD14

94

RD15

93

DVSS

92

GND

BA0

91

RCS#

90

RAS#

89

CAS#

88

RWE#

87

RD0

86

RD1

85

RD2

84

RD3

83

DVDD2

82

V25

RD4

81

RD5

80

RD6

79

RD7

78

DVSS

77

GND

URD#

76

UWR#

75

UP3_5

74

UP3_4

73

DVDD2

72

V25

IR

71

INT0#

70

UP3_1

69

UP3_0

68

UP1_7

67

DVDD3

66

DV33

UP1_6

65

UP1_5

64

UP1_4

63

UP1_3

62

UP1_2

61

DVSS

60

GND

IOCS#

59

IOWR#

58

IOOE#

57

ALE

56

APLLVDD3

55

APLLVSS

R33 10K

C40

2.2u

0805

FVCC

R294.7Ohm

CB3 Placed

CB3

0.1u

AV33

AV33

+

C4

220u

1206

L2Ferrite Bead

DV33

of

2 4Wednesday, July 28, 2004

E

MAXITECH Technology Co., LTD.

Maxitech DVD-Receiver MT1379 Solution

Title

Size Document Number Rev

Date: Sheet

D

C

MA8
MA9
MA11
DCKE
DCLK

DQ8
DQ9
DQ10
DQ11

DQ12
DQ13
DQ14
DQ15

BA0
CS#
RAS#
CAS#
WE#
DQ0
DQ1
DQ2
DQ3

DQ4
DQ5
DQ6
DQ7

TXD
RXD

IR

P3.1
P3.0
SDA

SCL
P1.5
P1.4

B

P1.3

PCE#
PWR#
PRD#

Near Pin

212

A

The information has been checked and is believed to be reliable. However, no responsib time in order to improve the design.

4 4

3 3

2 2

1 1

1

6

DVD Service Manual

4

FR

C35

22p

L30

FB

Q30

E

C49

R3515k

D

A+12V

C

B

A

C53

R3815k

U14WM8772/DA1172

R52 10 Ohm

R51 RES

+5V

2N3904

C34

10u

+

R178

1K

R1511K

A_MUTE

1

U10A

4558

SOP8

+

-

3

2

220pF

R37

5.1k

R36

10k

+

CE19

10uF

DAC_FR

FL FR

FL

FB

C24

10u

+

R157

1K

7

U10B

4558

SOP8

+

-

5

6

220pF

R54

5.1k

R40

10k L10

+

CE24

10uF

DAC_FL

+5VA

151617

18

28

VMID

AVDD

VFEFP

TESTREF1

SSOP28

MODE

DVDD

ML/I2S

MC/IWL

1

5

111213

+5VA

AXIAL 0.4

R196 FB

DV33

R3215k

C50

2000pF

C15

22p

Q10

2N3904

R1511K

A_MUTE

8 4

A-12V

R2915k

C54

2000pF

C55

220uF

+

DAC_FR

DAC_FL

CB106

0.1uF

CB58

0.1uF

C54

10uF

+

CB57

0.1uF

C8

10uF

+

2122232425

27

AGND

VREFN

VOUT1L

MCLK

DGND

MD/DM

MUTE

234

6

14

CB56

0.1uF

+

C53

220uF

RN2 33x4

ABCK

ACLK

ACLK

SR

C35

22p

L30

FB

Q30

2N3904

C34

10u

+

R137

1K

R1511K

A_MUTE

1

U13A

4558

SOP8

+

-

3

2

C43

220pF

R34

5.1k

C46

2000pF

R1815k

R33

10k

+

CE10

10uF

SL

C25

22p

L20

FB

Q20

2N3904

C24

10u

+

R151

1K

R1511K

A_MUTE

7

U13B

4558

SOP8

A+12V

+

-

8 4

A-12V

5

6

C32

220pF

R31

5.1k

C33

2000pF

R9 15k

R30

10k

+

CE8

10uF

DAC_SL DAC_SR

AINL

AINR

DAC_SR

DAC_LFE

DAC_CENT

DAC_SL

C133

10nF

C145

10nF

19

20

26

AINL

AINR

VOUT2L

VOUT3L

VOUT1R

VOUT2R

VOUT3R

Hardware

BCLK

LRC

789

ALRCK

ASDAT0

ALRCK

ABCK

Con

DIN1

DIN2

DIN3

DOUT

10

RN2 33x4

ASDAT1

ASDAT2

ADC_DAT

ASDAT2

ASDAT0

ASDAT1

ADC_DTA

78L05

24Bit-I

U103

CENT

C35

22p

123456789

L30

FB

Q30

2N3904

C34

10u

+

R117

1K

R1511K

1

U15A

4558

SOP8

+

-

3

2

C29

220pF

CB9

A-12V

OPAMPs U10, U13 & U15

Decoupling Capacitors

A+12V

+5VA

A-12V

D?

R191 1K

CE43

CB76

CB76

VEE

VDD

15246109

R197RES

MIC2

AUX1_R

AUX2_R

TUNER_R

0.1uF

CB8

0.1uF

CB7

0.1uF

CB6

0.1uF

CE6

47uF

16V

+

CB9

0.1uF

CB8

0.1uF

CB7

0.1uF

CB6

0.1uF

CE6

47uF

16V

+

5.1V

+

47uF

0.1uF

0.1uF

VSS

C227

RES

C226

RES

DQ30

DQ29

R26

5.1k
C31

2000pF

R24

10k

+

CE7

10uF

DAC_CENTDAC_LFE

LFE

C35

22p

L30

FB

Q30

2N3904

C34

10u

+

R129

1K

R1511K

A_MUTE A_MUTE

7

U15B

4558

SOP8

A+12V

+

-

8 4

A-12V

5

6

C19

220pF

R12

5.1k

C20

2000pF

R11

10k

+

CE5

10uF

AINL

AINR

+

4052

R82 150

R84 150

+

CE5 10uF

CE6 10uF

1331687

X

Y

SOP16

X0X1X2X3Y0Y1Y2Y3INHAB

U?

121415

11

R196RES

+

CE8 10uF+CE7 10uF

MIC1

AUX1_L

AUX2_L

TUNER_L

CE43

RES

+

CB73

RES

1

OUT

G

2

IN

TO-92 (Reserved)

3

CB73

RES

+

CE43

RES

A+12V +5VA

OPTIONAL

JP?

SLSRCENT

LFE

FR

FL

AMP_STBY

DQ16

SPDIFOUTASPDIF

R111330

R10868

C1720.1u

U13D

74HC04

U13E

9 8

11 10

U13C

5 6

U13B

3 4

U13A

1 2

R103

10M

VCC

C163

R10433

Audio Out

JST9 Pin 2.0mm Pitch

R112

91

74HC04

74HC04

74HC04

74HC04

0.1u

mm Pitch

CON8

Audio Input

JST 12Pin 2.0

RCA Jack

P2 Audio Output

+PS5V +5V +12V -12V A+5V

+3.3V

JP?

Power Supply

U13F

13 12

R1051M

1234567891011

AUX2_R

AUX2_L

MIC_DECT

FLFRSLSRCENT

123456789

JST10 Pin 2.54mm Pitch

74HC04

12

MIC2

AUX1_L

AUX1_R

RXP3

MIC1

RXP2

LFE

RSL

RSR

R138

RESD11N4148

R138

RES

A_MUTE

R106

100K

Q712N3906

R932.2k

R91

4.7K

10

MUTE

DV33

A2

2 3Friday, July 30, 2004

E

MAXITECH Technology Co., LTD.

7.1-Channel DivX DVD-Receiver

Title

Siz Document Number Rev

Date: Sheet of

D

CE5

10uF

+

C

B

A

The information has been checked and is believ ed to be reliable. However, no responsibility is assumed for inaccuracies. Circ uit diagrams are provided as a means of illustrating ty pical applications; MAXITECH Technology reserves the right to make changes at any time in order to improve the design.

4

3 3

2 2

1 1

7

DVD Service Manual

DQ20

123456789101112131415

CON9

To Output Board

JST 15Pin 2.0mm Pitch

FL

FR

R/V

G/Y

CVBS

FL

FR

P1

S-Video+RCA

8

9

CVBSSYSCSC

L281.8uH

D13

1N4148

+P12V

Q17

8550

TO- 92

R89

B/U

HSYNC#

VSYNC#

RGB/CVBS#

16:9

SPDIF

RGB/CVBS#

+5V

HSYNC#

VSYNC#

SPDIF

7

6

CY

GG

5

1 2

3 4

C56

47pF

C55

47pF

D15

1N4148

R91

150

1%

C85

0.1u

Q71

2N3906

R106

DV33

16:9 Control Signal to TV set:

16:9

Q74

R71

1K

R74

2.2k

R70

680

4.7K

RGB_Switch

+12V

DQ20

C56

L281.8uH

C55

D13

D15

1N4148

R91

150

Y6Y5G/Y B/U R/VY4

Y6Y4 Y5

2N3904

Q70

2N3904

R722.2k

R942.2k

FS0

FS1

DQ22

DQ21

47pF

47pF

1N4148

1%

R96

680

L13

FERB

C126

0.1uF

CE1

100uF

+

TUNER VCC

U28

TUNER ON/OFF

R50

10K

Q14

2N3904

1K

CE2

47uF

+

D12

5.1V

CE4

47uF

+

RDS_VCC

CB1

0.1uF

+

CE3

2.2uF
R97

2.2K

C223

15

6

10

9

3125

T57

VSS1

TEST

VREF

VDDA

VDDD

MODE

QUAL

RDATA

RCLK

PT2579/BU1924F

SOP16

1

2

16

P3.1

DQ31

P3.0

XIN XOUT

VSS3VSS2

CMP

MPXIN

7 11

8

4

13 14

C224

560pF

C225330P

MPX

PT2579/BU1924F or

82pF

Y2 4.332MHz

C220

47pF

R81

RES

Equivalent Part.

PT2579: R81=OPEN

BU1924F: R81=0

C52

C52

47pF

L321.8uH

C51

47pF

D18

D17

V33 V33 V33

D19

1N4148

1N4148

R81

150

1%

C48

47pF

L351.8uH

C47

47pF

D20

1N4148

1N4148

R73

150

1%

Y1 SY Y2 Y3 CVBS

Y1 Y2 Y3

D17

V33 V33V33

D19

47pF

L321.8uH

C51

47pF

D18

1N4148

1N4148

R81

150

1%

VCC

C48

47pF

L351.8uH

C47

47pF

D20

1N4148

1N4148

R73

150

1%

TUNER VCC

R99

10K

RN4

10Kx4

R75

10K

R180

10K

DQ21

DQ30

DQ29

Radio-L

12345678910111213

CON7

Tuner Connector

FFC CON 13 Pin 1.27mm Pitch

C130

100p

C233

100p

C230

100p

C232

100p

C93

100p

C94

100p

C128

PLL_CLK

PLL_CE

RN2 330x4

DQ23

DQ24

DQ22

Radio-R

100p

PLL_DAT

C95

100p

R179 330

R72 330

P3.1

P3.0

MPX

P1.3

P3.1

DQ26

1

8

DVD Service Manual

1

9

4.2.1 Front Panel Interface

6 Pin, Data Connector Pin Assignments

PIN NAME I/O DESCRIPTION

1 DATA I IR sensor interrupt
2 CLK O Front Panel chip select
3 STB O Front Panel clock
4 GND O Front Panel Data output
5 VCC
6 REM I Front Panel Data input

3Pin, Power Connector Pin Assignments

DVD Service Manual

PIN NAME FROM DESCRIPTION

3 -21V SMPS the cathode.

PT6311 S0791GC

There are 3 different devices operated by the and (Optional):
* Vacuum Fluorescent Display (VFD)
* Push-buttons
* VFDs
There is an option for a tray lamp and a joystick which is not currently assembled. The VFD display is
custom made,
implemented in a 6 grids by 16 segment matrix.
The VFD needs special voltage supply for operation:
* Vkk which is -21V needed to drive the segments and grids of the VFD.
* Vf1, Vf2 which powers the exectron cloud filament (cathode) with a differential voltage of 3.5V. This is
a floating
voltage difference generated by the power supply, and is biased to -21V in the ront panel board by a
Zener circuit
from the -21V (Vkk) supply. Moving the bias towards a more positive number will reduce the segment
brightness.
Vf1 & Vf2 provide a DC supply to the cathode. To overcome the voltage difference between one end
and the other
of the cathode, it is geometrically titled so that the segments observe the same potential and have all
the same
brightness. Other way to overcome the problem is to employ an AC supply to power the Vf1 and Vf2.

1 VFD 1 SMPS Segment and grid Voltage of the VFD
2 VFD 2 SMPS Provide a DC supply to the cathode. To vercome

the voltage difference between one and the other of

4.3 SMPS
The mains power(220VAC) fed from K1is filtered through 3C1, 3L1, 3C2 then rectified by D1,D2, D3 and

D4 and generates an output at 300VDC. This 300VDC fed to 3TR1 (pin1, pin5) which
connects to 5M02659R(pin3), then 5M02659R will automatically generate a 50KHz square waveform,
this 50KHz square waveform controls the ON/OFF between 5M02659R pin1 and the ground.
In normal condition, T1 primary (between pin2 and pin4) will create a 50KHz square waveform
which is controlled by 5M02659R, this signal then fed to 3TR1 and generates 2 different potential
voltages of 12V and 5V .The 12VDC and 5VDC
then rectified by3D11 and then filtered by3 L2, 3R9, 3C18, 3CC25 and 3C11. The feedback voltage
is controlled by Ic3 TL431 and IC2 PC817. When the output voltage is higher than 5V, the voltage at
TL431(2.5V) is compared with R10 and send out a signal to 5M02659R, the output square waveform then
will change to adjust the output voltage, this acts as a voltage stabilizer.

10

1

DVD Service Manual

11

1

DVD Service Manual

12

1

DVD Service Manual

5. DESCRIPTION OF THE INTEGRATED CIRCUITS

5.1 SMPS TRANSFORMER

1. GENERAL INFORMATION

Main Voltage Operations:

Main Drop-out Voltage:

Mains STart-up Voltage:

Operating Frequency:

90Vac - 265 Vac

Max. 90 Vac

Max. 90 Vac

60 KHz

2. ELECTRICAL CHARACTERISTICS

2.1 STATIC CHARACTERISTICS

WINDING

PrimaryInductance

PIN.NO

2-4

1. Primary Leakage inductance (Pin 2-4) L1.5mH

INDUCTANCE 6DESCRIPTION

1.5mH10% <0.50W

2.2 WITHSTANDING VOLTAGE

The transformer shall sithstanding a voltage of 4 Kvms for 1 minute and 1 mA between
primary and seconday winding and also 2 Kvms for 1 minute and 1 mA between
primary winding with core and secondary winding with core.

2.3 INSULATION RESISTANCE

The insulation resistance shall be ore than 500M between primary and seconday
windings when the applied voltage 300 Vdc for 1 minute

2.4 ELECTRICAL CHARACTERISTICS

1. Before taking measurement Pp01 will be to give 5.0Vdc on 5.0Vdc line at Minimum
setting of controls and a mains voltage 220 Vac.

2. Before taking a measurement, DVD set should be working at least 5 minutes on
Normal condition

13

1

DVD Service Manual

5.2 FRONT PANEL DRIVER IC FOR VIR (PT6311)

5.2.1 General Description

14

1

DVD Service Manual

15

1

DVD Service Manual

1161

DVD Service Manual

17

DVD Service Manual

5.3 SWPS CONTROLLER IC ( )5M02659

18

1

DVD Service Manual

19

1

DVD Service Manual

20

1

DVD Service Manual

21

1

DVD Service Manual

22

DVD Service Manual

23

1