Roadstar DVD-2501 Service Manual

R

- DVD-2501

DVD-2501

Service Manual

E

Page Index

D

C

Block Diagram/Notes

24.576MHz

Power, FIP input, Reset, 96kHz clock

EM8500 Main I/Os

EM8500 Power and decoupling

EM8500 Sys SDRAM + Flash

1234567

74AC04

Video OUT

EM8500 MPEG SDRAM + UART0IDE / DVD LOADER

Audio OUT

(Debug) UARTs

(Debug) Flash Emulator

9

10

8

SDRAM

RESET

96kHz

Clock

2Mx32

EEPROM

EM8500

SDRAM

2Mx32

FLASH

2MB

PWR: 3.3V/1.8V

Emulator conn.

COM 1

F.I.Pannel

Debug Only

COM 2

D

C

27MHz

Video

Audio

OUT

S/PDIF

DACs

IDE Connector

DAC

B

Op-Amp

Y

C

Y

Pr

Pb

Coax.

A

RightAnalog

Optical

Left

Composite

S-Video

Component

B

A

Digital

AUDIO

4 4

AUDIO

TV OUT

HDTV OUT

3 3

2 2

1 1

E

D

24.576MHz

Vcc3V3

1 2

C96 0.1uF

AUDCLK96

1 2

R75 33

STANDBY

R39

Vcc5VVcc5V

10K

1 2

12

R38

47k

1 2

R??

0R

jump for power standby direct

Q8

2N3904

2

3

1

1 2

R40 1k

STBY#

74HC04

U11F

13 12

U11A

74HC04

1 2

7

14

1 2

R74 1M

R76 220

C101

10pF

12

X5

24.576MHz

1 2

12

C100

10pF

E

D

C

1.8V Regulator

B

Z1

R7047K

AMS1117-1V8

4

U11D

4

RESET#

R46

22

9 8

Vcc1V8

GND OUT VIN

VCC3v3

74HC04

1 2 3

U11C

R56

IDE_RESET#

R47

22

5 6

00

U11E

74HC04

C830.1uF

C8110uF/35V

1 2

74HC04

11 10

R91

22

Vcc5V AUDP5V

J_FIP_IR

J_FIP_FSTB

J_FIP_CLKO

Vcc12V AUDP12V

J_FIP_DATA

C100.1uF

C8410uF/35V

R90

22

Neg12V

Vcc12V

Vcc5VVcc3V3

R92

22

Neg12V AUDN12V

C90.1uF

C8210uF/35V

C21047uF/25V

C20847uF/25V

C12647uF/25V

C20647uF/25V

C

B

U11B

74HC04

3 4

R7110K

C10210uF/35V

R7210K

L26

BEAD

L27

BEAD

L28

BEAD

L29

BEAD

A

12345

Vcc3V3

Reset

3

2

D12

Dual

NOT FITTING

R73

1K

1

2

J14

HDR1x2

4 4

J16

GND

Panel cn

3 3

IR

HDR1x5

CLKCSDATA

Power Input

STANDBY

L19

BEAD

J10

2 2

L21

L20

BEAD

1234567

Stby

+3.3V

+5V

L22

+12V

BEAD

L23

BEAD

8

-12V

HDR1x8

CONFIDENTIAL

1 1

A