Microlab H-300 Schematics

1

2

3

4

5

6

D

~3.5V

5

D

~3.5V

4

DC-27V

3

VFD HNVCLLSM27

MUTE

2

GND

1

C207

C208

CON2

100UF/35V

CC104

L201

4.7UH

+5V VDD

F2 F2

P16 P15 P14 P13 P12

P18P11 P17P10

P9 P8 P7 P6 P5 P4 P3 P2 P1

G12 G11 G10 G9 G8 G7 G6 G5 G4 G3 G2 G1

F1 F1

P18 P17 P16 P15 P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1

G10 G9 G8 G7 G6 G5 G4 G3 G2 G1

C201

C202

100UF/16V

CC104

C

R201

C

RX1

10K

C205

IC201

C204

P17

L202

104

2SC2604

30pF

P18

GND

4.7UH

1

28

VCC

OUT

Y201

D201

D202

1N4148

1N4148

2

27

6MHz

34 45 14 33

1

2

3

3

26

C203

IC203

30pF

G8

37

36

G9

4

25

G8

VEE VDD VDD VDD

S20/G9

G7

38

35

G10

G7

S19/G10

G6

39

32

P1

5

24

G6

S18/G11

G5

40

31

P2

SW4

SW3

G5

S17/G12

DOUT

G4

41

30

P3

6

23

G4

S16/G13

G3

42

29

P4

vol -

out PUT

R208

G2

43

G3

S15/G14

28

P5

7

DIN

22

G2

S14/G15

G1

44

27

P6

G1

S13/G16

33K

C206

26

P7

8

CLK

21

S12/K12

CC104

46

25

P8

SW5

SW2

LED5

S11/K11

9

STB

20

47

LED4

S10/K10

24

P9

48

23

P10

vol +

in put

LED3

S9/K9

R207

10

MUTE

19

49

LED2

S8/K8

22

P11

50

21

P12

R204 56K

LED1

S7/K7

33K

52

20

P13

11

CE

18

OSC

S6/K6

B

9

19

P14

SW1

B

STB

STB

S5/K5

12

SDA

17

8

CLK

S4/K4

18

P15

CLK

7

17

P16

st-by

NC

S3/K3

CON5 CON6

R206

6

16

P17

CE

5

13

SCL

16

DIN

S2/K2

DIN

5

15

P18

DOUT

S1/K1

1

1

33K

+5V

4

14

DO

15

DOUT

2

2

SDA

3

4

13

SW4

KEY4

3

3

SCL

2

3

SW3

KEY3

12

4

4

DO

1

2

11

SW2

VSS

KEY2

5

5

R205

CON3

1

10

SW1

KEY1

PT6311

33K

51

H-300

A

A

Title

H-300 DISP

Size

Number

Revision

B

SDP1-0X25R-A51/52

V1.0

Date:

20-Apr-2006

Sheet

of

1

File:

D:\AN1\H-300.ddb

Drawn By:

WANGZHAO

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