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Benq corporation – BenQ PB6200 User Manual

Page 114

background image

A

A

B

B

C

C

D

D

E

E

4

4

3

3

2

2

1

1

CS0n

D2

D4

D7

D5

D3

D0

D0

D1

D3

D5

D7

D4

D6

D2

D1

D[0:7]

D6

D[0:7]

IRR CVR

IRRCVR1

IROUT

IRV CC

LED5

LED4

LED0

LED3

LED2

LED1

KEY8

KEY[7:0]

LED3

LED2

LED1

LED0

LED4

KEY4

KEY7

KEY0

KEY4

KEY1

KEY6

KEY3

KEY2

KEY0

KEY6

KEY5

KEY7

KEY5

KEY3

KEY2

KEY1

LED5

IRRCVR2

IRV CC

IROUT

D[0:7]

CS0n

3.3V

CS1n

GND

RESETn

D[0:7]

IRRCVR

VDD

KEY8

VDD

3.3V

3.3V

VDD

VDD

VDD

VDD

KEY[7:0]

KEY[7:0]

LED[5:0]

LED[5:0]

IRRCVR1

IRRCVR2

IRRCVR1

IRRCVR2

Title

Size

Document Number

R ev.

Date:

Sheet

o f

Project Code

Reviewed By

Approved By

Prepared By

Model Name

PCB P/N

PCB Rev.

Benq Corporation

OEM/ODM Model Name

48.J8601.S04

MAIN BOARD

12

20

DAVID HN LIN

KELVIN LIAO

99.J8677.B12-C3-304-004

S04

ANGEL HU

PB6100

99.J8677.001

1

Tuesday, October 07, 2003

In version 2 PCB the power for this block is VDD_D but it
is floating. I version 3 schematic we change to VDD net
for this block power source.

IR receiver circuit

77.62203.0C1

77.62203.0C1

77.62203.0C1

OPEN

RN725

120 OHM

1
2
3
4

5

6

7

8

U27

74AHC244

1A1

2

1A2

4

1A3

6

1A4

8

2A1

11

2A2

13

2A3

15

2A4

17

1G

1

2G

19

1Y1

18

1Y2

16

1Y3

14

1Y4

12

2Y1

9

2Y2

7

2Y3

5

2Y4

3

VCC

20

GND

10

C127

0.1U

R813

0

TP232

R744
0

R957

0

TP34

C

N701

470P

8

1

7

2

6

3

5

4

C812

0.1U

TP948

C801

470P K

R22
10K

C811 0.1U

U7

74AHC1G08

1

2

3

4

5

CN703

470P

8

1

7

2

6

3

5

4

L802

240 OHM

L801

240 OHM

J4

20L2021020

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

TP44

TP949

TP233

TP41

R23

510

R958

0

TP35

U28

74LVC273

CLR

1

GND

10

CLK

11

VCC

20

Q1

2

Q2

5

Q3

6

Q4

9

Q5

12

Q6

15

Q7

16

Q8

19

D1

3

D2

4

D3

7

D4

8

D5

13

D6

14

D7

17

D8

18

RN726

120 OHM

1
2
3
4

5

6

7

8

R857

0

J813

20L2021004

1
2
3
4

TP37

C12

4.7U Z

CN704

470P

8

1

7

2

6

3

5

4

C

N702

470P

8

1

7

2

6

3

5

4

TP45

TP47

R15

47

TP39

R745
0

U6

FM-6038LM-5A

OUT

1

GND

2

VS

3

TP42

TP46

C816

470P

K

RN727

120 OHM

1
2
3
4

5

6

7

8

TP36

TP48

TP231

J913

20D0049103

1
2
3

R858

0

C815

470P K

TP38

RN728

120 OHM

1
2
3
4

5

6

7

8

TP801

TP40

TP49

TP947

TP43

CP7

0.1U

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