Prolodgy MDD-300s Schematics

PROLOGY MDD-300

SERVICE MANUAL

SPECIFICA TION

Power requirement 12 V DC car battery Operating temperature -10 C to +70 C

Storage temperature: -30 C~ +80 C Operational humidity: 45%~80%RH Atmosphere pressure: 860mbar~1060mbar

(negative earth)

CAR DVD PLAYER

Manufactured by Saturn High-Tech Group Ltd.

1

LCD1

R+B LED

瑞丰 R+B LED雅裕

R18

18Ohm 1/6W

R20

6.8Ohm 1/4W

脚位

PT6578LQ

LCD /

控制背光灯开关

84

BUTTON /控制背光灯开关

85

86

87

脚位

18PIN-接连器说明

（控制作用）

KEY1 BUTTON

1

ENCODER-VOL控制脚

2

INH LCD-IC CPU（到主机）

3

CE LCD-IC CP U（到主机）

4

CLK LCD-IC CPU（到主机）

5

DATA LCD-IC CPU（到主机）

6

7

CPU检测开关

CPU +5V供电

8

9

KEY2 BUTTON（控制作用）

LCD-IC +8V供电

10

KEY脚地

11

ACC-IN 12V

12

摇控脚

13

LED灯脚地

14

LED +5V灯供电

15

ENCODER-LED灯闪控制

16

空脚

17

空脚

18

LED控制蓝色 LED控制红色

22 Ohm 1/6W

10 Ohm 1/4W

Q201 9013

LCD ILL2

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899

S76

S80

S81

S79

S77

S82

S78

S83S1S2S3S4

S64

S65

S66

S67

S68

S62

S63

S69

S70S5S6S7S8S9S10

S11

S12

S13

S14

S15

S16

S17

S18

S19

S20

S21

S22

S23

S24

S25

S26

S27

S28

S29

S30

S31

S32

S33

S34

S35

S36

S37

S38

S39

S40

S41

S42

S43

S44

S45

S46

S47

S48

S49

S50

S51

S52

S53

S54

S55

S56

S57

S58

S59

S60

S61

S62

S63

S64

S65

S66

S67

S68

S69

S70

S71

S82

R208

LED11

R201

47

R+B

R202

3K3

BL

R56

C5

330K

680P

DGND

120

LED12

R207

120

R+B

LGND

R204

47

R203 2K2

LGND

LED5

R+B

R101 22

9013 Q7

LGND LGND

EW1

ENCODER SW

R55

R54

47K

220K

4

12

5

3

C6 104P

DGND

PP4

LGND

DGND

SEL BOTTON

Q202

9013

R205 2K2

LGND

VOL ENCODE SW ILL

9013

Q2

LGND

LED6

LED7

R+B

R48

R58

22

1K2

R15

10K

REM1 REMOTE

OUT

VCC

DGND

LED3

R+B

R57 22

EC3 10U

CON1

18PIN

R206

RL

3K3

56

LED1 WHITE

LGND

LED4

BLUE=33

R+B

R19

47 R59 1K5

R103

22

R9

10K

PP2

LGND

LED8 R+B

180 R46

KEY1 1234567891011121314151617

R18

R104

18

Q4

22

9013

Q3

R8

10K

9013

LGND

LED9

BLUE=15

R+B

R21

22

R20

R49

R102

6.8

22

Q8

22

9013

R14

9013

Q6

10K

BOTTON ILL

4K7

CPU+5V

DTH SW

LCD DATA

LCD CLK

LCD CE

LCD /INH

EC+/EC-

BL

R52xR51

KEY2

R2256R23

LCD ILL1

LED2 WHITE

Q10

9013

R12 3K3

Q11

9013

R16 1K

DGND LGND

ACCIN

DGND

LCD VDD +8V

+4.0V

Q1 9013

PP1

R10

10K

RL

PP3

R11

3K3

REM

S62

S63

S64

S65

S66

S67

S68

S69

S70

S71

S72

S73

S74

S75

74

75

73

76

S76

SW4

R4 12K

M1

SW3

LCD LED

ILL MODE

BLUE LE D

RED LED

R2 12K

R3 12K

LCD CE

LCD /INH

R26

220

PLAY

R27

220

EJ/RST-TRAY

COM8

SG75/COM 9

77

S77

S78

S79

S80

S81

S82

S83

LCD CLK

SG74/COM 10

COM7

78

COM6

79

COM5

80

COM4

81

COM3

82

COM2

83

COM1

84

P1

85

P2

86

P3

87

P4

88

VDD

89

VLCD

90

VLCD 0

91

VLCD 1

92

VLCD 2

93

VLCD 3

94

VLCD 4

95

VSS

96

OSC

97

/INH

98

CE

99

CLK

100

DI

SG11SG22SG33SG44SG55SG66SG77SG88SG99SG1010SG1111SG1212SG1313SG1414SG1515SG1616SG1717SG1818SG1919SG2020SG2121SG2222SG2323SG2424SG25

LCD DATA

S1S2S3S4S5S6S7S8S9

R28

R30

330

470

M3

M2

SW6

SW8

SCAN/CD

R29

R31

330

470

SEL

SW5

SW7

(ENTER)

SCAN/PTY

PTC

PT6578LQ

S10

R32

680

M4

SW10

REPRAT

RANDOM

R33

680

SW9

MODE

/FUNC

X-BASS

IC1

S11

S12

S13

R341KR36

M5

SW12

DISC-DN

R351KR37

SW11

VOL-UP

S14

R7 3K3

9013

Q5

R13 1K

9013

Q9

R17

680

VOL LED COT.

BACK LIGH T +5V

LGND

NC

18

104C2104

104

R5 12K

C1

C3

DGND

R1 6K2

R6

47K

DGND

C4 680P

EC1

EC2

10U

DGND DGND

Q12

R47

9013

470

ZD1

EC4

5V6

10U

R24 180

DGND

(ID3)

SW2

PS/AS

P.PLAY/CLR

DGND DGND DGND DGND DGND DGND

DGND

R25

180

SW1

POWER

R50 2K2

DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND

LED10 POWER LED

LGND

S81

S55

S56

S57

S58

S59

S60

S61

S15

S16

S17

S18

S19

S20

S21

220 R38

1K5

2K2

M6

SW14

SW16

/DISP

DISC-UP

MENU

R39

1K5

2K2

SW15

SW13

VOL-DN

X-BASS/AF

100

101

102

103

104

105

106

S80

S79

S78

S77

S83

S82

S81

S80

S79

S78

S77

S76

S72

S73

S74

S75

S51

S52

S53

S54

SG5151SG5252SG5353SG5454SG5555SG5656SG5757SG5858SG5959SG6060SG6161SG6262SG6363SG6464SG6565SG6666SG6767SG6868SG6969SG7070SG7171SG7272SG73

S50

50

SG50

S49

49

SG49

S48

48

SG48

S47

47

SG47

S46

46

SG46

S45

45

SG45

S44

44

SG44

S43

43

SG43

S42

42

SG42

S41

41

SG41

S40

40

SG40

S39

39

SG39

S38

38

SG38

S37

37

SG37

S36

36

SG36

S35

35

SG35

S34

34

SG34

S33

33

SG33

S32

32

SG32

S31

31

SG31

S30

30

SG30

S29

29

SG29

S28

28

SG28

S27

27

SG27

26

S26

SG26

25

S22

S23

S24

S25

R41

R43

DGNDDGNDDGND

4K7

SW20

SEEK-UP

R42

4K7

SW19

MUTE

R45

8K2

SW22

TUN-UP

SEEK-DN

DGND DGND

R44

8K2

SW21

MENU

SEEK

SW24

MANUAL

TUN-DN

SW23

LOC/DX

DGND

3K3

BAND

SW18

(SEARCH)

R40

3K3

SW17

SUB-W

EQ5/TA