BBK DV718SI Service Manual

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DV718SI

service manual

Catalog

Chapter One About Maintenance

1.1 Safety precautions

1.1.1 Power supply

1.1.2 Precautions for antistatic

1.1.3 Precautions for laser head

1.1.4 About placement position

1.2 Maintenance method

1.2.1 Visualized method

1.2.2 Electric resistance method

1.2.3 Voltage method

1.2.4 Current method

1.2.5 Cutting method

1.2.6 Element substitution method

1.2.7 Comparison method

1.3 Required device for maintenance

Chapter Two Functions and Operation Instructions

2.1 Features

2.2 Control Button Locations and Explanations

2.2.1 Front Panel Illustration

2.2.2 Rear Panel Illustration

2.2.3 LED Display Window Illustration

2.2.4 Remote Control Illustration

2.3 Accessories

2.4 FUNCTION SETUP

2.4.1 Function Setup

2.4.2 Language

2.4.3 Image

2.4.4 Sound

2.4.5 Playback

2.4.6 Karaoke

2.4.7 Preference

2.4.8 Parental control

2.4.9 Initial setup

2.4.10 Rest to defaults

2.4.11 Exit

2.5 Specifications

Chapter Three Principle and Servicing

Section One Principle of the Player

3.1.1 Functions and features

3.1.2 Block diagram of the player

3.1.3 Introduction to IC of the player

Section Two Unit Circuit Principle

3.2.1 Introduction to laser head

3.2.2 Servo circuit

3.2.3 CD/DVD conversion circuit

3.2.4 Laser power control circuit

3.2.5 Open/close door drive circuit

3.2.6 Main axis control circuit

3.2.7 Decode circuit

3.2.8 Video circuit

3.2.9 Reset circuit

3.2.10 Audio circuit

3.2.11 Mute circuit

3.2.12 Power circuit

3.1.13 USB jack circuit

3.2.14 AV output board circuit

3.2.15 Panel control circuit

3.2.16 HDMI circuit

Section Three Servicing Cases

3.3.1 Servicing cases

3.3.2 Troubleshooting flow chart

Section Four Waveform diagram

Section Five Function Introduction to IC

3.5.1 function introduction to MT1389HD

3.5.2 function introduction to AT24C02

3.5.3 function introduction to Cs5340

3.5.4 function introduction to 74HCU04

3.5.5 function introduction to FLASH

3.5.6 function introduction to SDRAM

3.5.7 function introduction to 4580

3.5.8 function introduction to D5954

3.5.9 function introduction to Pt6961

3.5.10 function introduction to VIPer22ADIP

3.5.11 function introduction to P H817

3.5.12 function introduction to LM431A

3.5.13 Function introduction to 455 8

3.5.14 Function introduction to TDA1308

3.5.15 Function introduction to MT1392E

Chapter Four Disassembly and Assembly Process

Chapter Cinque PCB board & Circuit diagram

Section One PCB board

Section Two circuit diagram

Chapter six BOM List

106

Chapter One About Maintenance

1.1 Safety precautions

1.1.1 Power supply

When maintenance personnel are repairing DVD players, he should pay special attention to the

power board with 220V AC and 330V DC which will cause hurt and damage to persons!

1.1.2 Precautions for antistatic

Movement and friction will both bring static electricity which causes serious damages to integrated

IC. Though static charge is little, when a limited quantity of electric charge is added to large-

scaleintegrated IC, as the capacitance is very small in the meantime, now the integrated IC is very much

easy to be struck through by static electricity or the performance will decrease. Thus static electricity

prevention is of extraordinary importance. The following are several measures to prevent static

electricity:

1. Use a piece of electric conduction metal with the length of about 2 metres to insert into the earth,

and Fetch the lead wire from the top of the surplus metal and connect to the required static electricity

device. The length and depth of the metal embedded under the earth should be determined according to

the wettability of the local soil. For humid places, it may be shorter, and longer and deeper for dry places.

If possible, it can be distributed and layed in terms of “#” shape.

2. On operating table-board, the antistatic table cushion should be covered and grounded.

3. All devices and equipments should be placed on the antistatic table cushion and grounded.

4. Maintenance personnel should wear antistatic wrist ring which should be grounded.

5. Places around the operating position should also be covered with electric conduction cushion or

Painted with antistatic paint.

1.1.3 Precautions for laser head

1. Do not stare at laser head directly, for laser emission will occur when laser head is working, which

will Hurt your eyes!

2. Do not use wiping water or alcohol to clean laser head, and you may use cotton swab.

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1.1.4 About placement position

1. Never place DVD player in positions with high temperature and humidity.

2. Avoid placing near high magnetic fields, such as loudspeaker or magnet.

3. Positions for placement should be stable and secure.

1.2 Maintenance method

1.2.1 Visualized method

Directly view whether abnormalities of collision, lack of element, joint welding, shedding welding,

rosin joint, copper foil turning up, lead wire disconnection and elements burning up among pins of

elements appear. Check power supply of the machine and then use hands to touch the casing of part of

elements and check whether they are hot to judge the trouble spot. You should pay more attention when

using this method to check in high voltage parts.

1.2.2 Electric resistance method

Set the multimeter in resistance position and test whether the numerical value of resistance of each

point in the circuit has difference from the normal value to judge the trouble spot. But in the circuit the

tested numerical value of resistance is not accurate, and the tested numerical value of integrated IC's

pins can only be used for reference, so the elements should be broken down for test.

1.2.3 Voltage method

Voltage method is relatively convenient, quick and accurate. Set the multimeter in voltage position

and test power supply voltage of the player and voltage of a certain point to judge the trouble spot

according to the tested voltage variation.

1.2.4 Current method

Set the multimeter in current position and test current of the player of a certain point to judge the

trouble spot. But when testing in current method, the multimeter should be series connected in the

circuit, which makes this method too trivial and troublesome, so it is less frequently used in reality.

1.2.5 Cutting method

Cutting method should be combined with electric resistance method and voltage method to use.

This method is mainly used in phenomena of short circuit and current leakage of the circuit. When

cutting the input terminal voltage of a certain level, if voltage of the player rises again, it means that the

trouble lies in this level.

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1.2.6 Element substitution method

When some elements cannot be judged good or bad, substitution method may de adopted directly.

1.2.7 Comparison method

A same good PC board is usually used to test the correct voltage and waveform. Compared these

data with those tested through fault PC board, the cause of troubles may be found.

Through the above maintenance method, theoretical knowledge and maintenance experience, all

difficulties and troubles will be readily solved.

1.3 Required device for maintenance

Digital oscillograph ( 100MHE)

TV set

SMD rework station

Multimeter

Soldering iron

Pointed-month pincers

Cutting nippers

Forceps

Electric screw driver

Terminals connecting cord

Headphone

Microphone

- 3 -

Chapter Two

Functions and Operation Instructions

2.1 Features

This player has employed the new generation DV decode chip with built-in Dolby Digital decoder which willbring you to a brand-new AV entertainments world. The 2-laser super error-correction mechanism supports CD-R.

Brand-new AV Effects #Compatible with DivX, MPEG4 discs to produce wonderful pictures. #108MHz/12bit video DAC, with more vivid and brilliant pictures. #Progressive-scan video outputs to eliminate the flickers hardly overcome by interlacing scan and

therefore your eyesight will be well-protected. At the same time, the pictures definition Is sharply

enhanced and the pictures will be finer, smoother and stabler #Brightness, chroma and contrast adjustment functions to render your eyes more comfortable. #Digital echo Karaoke to enable your singing easier. #Composite Video, S-Video and Component Video outputs. #Bullt-In Dolby Digital decoder, separate 5.1Ch Outputs. #Dolby output for 2channel(DOWNMIX) #DVD-Audio decoding output to reproduce original and realistic sound effects.

High Quality Digital Audio #Optical and coaxial outputs for Digital audio. #DTS,Dobly Digital, PCM Digital audio outputs to satisfy the fans’ss acoustic requirements.

Many Convenient Features #Screen saver protects your TV set carefully. #The novel Mp3 playback window GUI provides you a new way to appreciate Mp3 music. #Multi-angle playback function makes it possible for you to view a scene from different camera angles. #It’s possible to select the desired beginning, development and ending of a story. #Direct entry into desired scenes(title/chapter/track search). #Zooming function to zoom up any playing picture. #Capable of playing PAL/NTSC discs. #Multiple aspect ratios to fit TV sets of various screen ratios. #Parental lock function to prevent children from watching unsuitable discs. #Multiple dubbing languages and subtitle languages bring you the best entertainment status all the time.

Super Compatibility with super VCD, VCD, CD , CD-R , MP3,HDCD,KODAK PICTURE CD etc.

NOTE: DivX version is still upgrading continuously and the latest version of this unit is DivX 5.1. Some discs labelled with MPEG4 on the market actually are others, with which are uncompatible . Please take care when buying discs.

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2.2 Control Button Locations and Explanations

2.2.1 Front Panel Illustration

4 5

7 8

Slot flap for USB

MIC jack

Headphone jack

POWER switch

Disc tray

2.2.2 Rear Panel Illustration

Mixed Audio out jack

5.1CH Audio Out jack

S-Video

Video Out jack

HDMI Out jack

IR SENSOR

Display window

OPEN/CLOSE button

PLAY/PAUSE button

STOP button

42 3

5 6

8 9

Video Component /Y Pb Pr out jacks

Digital Audio Coaxial Out jack

Digital Audio Optical Out jack

SCART out jack

2.2.3 LED Display Window Illustration

2.2.4 Remote Control Illustration

[ ]

Button

Open or close the disc tray.

LANG Button

Change the audio language or audio channel.

MEMORY Button

Save the playing point or jump to the saved point .

Playback time

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DISP Button

Display or hide disc information.

NUMBER Buttons

BROWSE Buttons

switch new user interface.

CURSOR Buttons

12 13 14

ETUP Button

2 3 4

15 16

17 18

Function Setup.

[ ]

Button

Open/close the virtual keyboard function.

KARAOKE Button

Karaoke operation menu.

8 9

[ ]

Button

Fast backward play.

[ ]

Button

Skip backward.

PEPEAT Button

23 24 25

USB DVD

Repeat play.

A-B Button

Repeat the select.

[ ]

Button

[ ]

Button

Stop playback.

[ ]

Button

Skip forward.

USB DVD Button

VOL +/- Button

Increase/decrease volume level.

MUTE Button

Press once to mute, twice to unmate.

Press once to stand by, Press twice to play.

SUBT Button

Change subtitle language.

HDMI Button

Switch output mode of HDMI.

Q-PLAY Button

Skip the advertisement/warning and play the DVD directly.

MENU Button

Display DVD menu or open/close PBC.

OK Button

Cancel Button

ZOOM Button

Zoom in/out the displayed frame.

[ ]

Button

Play or pause playback.

[ ]

Button

Fast backward play.

2.3 Accessories

AUDIO/VIDEO CORD REMOTE CONTROL AAA SIZE BATTERIES WARRANTY CARD USER MANUAL KARAOKE DISC

2.4 FUNCTION SETUP

2.4.1 Function Setup

1PCS 1PCS 2PCS 1PCS 1PCS 1PCS

- 6 -

1.Press the [SETUP] button and the screen

displays the selection menu of function setup.

Language

Image

Sound

Playback

Karaoke

Preference

Parental control

Initial setup

Reset to defaults

Exit

Setup menu

DVD menu

Soundtrack

Subtitle

Off

2.Press the [CURSOR] button to select the menu

to be entered and press the [OK] or button to confirm. Or press the [CURSOR] button to Exit item and then press the [OK] button to exit .

3.Press [UP/DOWN] arrow to select the desired

item you want to set and press [OK].

For example, press [UP/DOWN] arrows to select IMAGE and press [OK]. The Image setting page appears on the screen.

16:9

Off

AUTO

PAL

NTSC

TV system

TV scan mode

Video out.

TV format

Sharpness

Gamma

Brightness

Contrast

Hue

Saturation

AUTO

Com.

4.Press [UP/DOWN] arrow to select the

SHARPNESS item. Press [OK] to confirm it. And then press [UP/DOWN] arrow to select the desired valus.For example: Press[ UP/DOWN] arrow to select “Medium” ,then press [OK], the TV screen display.

TV system

TV scan mode

Video out.

TV format

Sharpness

Gamma

Brightness

Contrast

Hue

Saturation

AUTO

Com.

16:9

Off

High

Medium

Low

5. Press [LEFT] button if you want to return to

the previous setup page.

6.Press [SETUP ]to exit the setup menu.

2.4.2 Language

Setup menu

DVD menu

Soundtrack

Sbutitles Off

Russian

English

Ukrainian

1.Setup menu: This item is used to set the prompts language on the screen.

#Optional setting: Russian, English, Ukrainian. #Default: English.

2.DVD menu: To set the preference disc menu lang when playing.

#Optional setting:

Russian, English, Estonian, Latvian, Kazakh, Romanian, Byelorussian, Ukrainian, Chinese, Others.

#Default: English.

3.Sountrack:To set the preference audio language when playing.

#Optional setting:

Russian, English, Estonian, Latvian, Kazakh, Romanian, Byelorussian, Ukrainian, Chinese, Others.

#Default: English.

4.Subtitles: To set the preference subtitle language when playing.

#Optional setting: Off,

Russian, English, Estonian,Latvian, Kazakh, Romanian, Byelorussian, Ukrainian, Chinese, Others.

#Default: Off.

2.4.3 Image

TV system

TV scan mode

Video out.

TV format

Sharpness

Gamma

Brightness

Contrast

Hue

Saturation

AUTO

Com.

1.TV system: This item is used to the video output system of this unit.

#Optional setting: Auto, PAL, NTSC. #Default: AUTO.

2.TV scan mode: To set

Interlaced scan mode

#Optional settings: Progressive , Interlaced. #Default: Interlaced.

3.Video output: To set the types of SCART out connector.

#Optional setting: Component , SCART. #Default: Component. #When using RGB outputs from the SCART

interface,please select RGB. Other wise , please select Com-ponent.

AUTO

PAL

NTSC

16:9

Off

Progressive scan,

- 7 -

4.TV format: To set the aspect ratio of this player’s output image.

#Optional setting: 4:3 Pan-scan, 16:9 letterb.,

16:9 TV, Wide/SQZ.

#Default: 16:9 TV.

5.Sharpness:Used to set the sharpness of video outputs.

#Optional setting: High, Medium, Low. #Default: Medium.

6.Gamma emendation:This item is used to setup the Gamma value of video output.

#Optional setting: High, Medium, Low, Off. #Default: Off.

7.Brightness:Used to set the brightness of video outputs.

8.Contrast:Used to set the contrast of video outputs.

9.Hue: Used to set the hue of video outputs.

Saturation: Used to set the saturation of video

10.

outputs.

#Brightness, contrast, hue and saturation

adjusting means:

Press [UP/DOWN] arrow in the video setup

menu to select the desired item you want to adjust. Press [OK] or [RIGHT] button to enter the item's adju-stment.

Press [UP/DOWN] arrow to adjust the setting

value.

2.4.4 Sound

Mixer...

Digital output

HDMI Audio On

Tuning

1.Mixer...

Configuration

Stereo mix

Surr. Mix

Low band

Channels

Delays

PRO Logic II

A. Configuration: To set this player’s DOWNMIX

mode to change multi-channel audio into two channel audio.

#Optional setting: Stereo, 5.1. #Default: Stereo. B. Stereo mix: To set the output means of the left

or right audio when playing a Dolby disc with separate two-channel audio.

Configuration

Stereo mix

Surr. Mix

Low band

Channels

Delays

PRO Logic II

St.

L+R

sum

FSW.

AUTO

St.

L+R

sum

FSW

Off

Stereo

5.1

#Optional setting: L+R, L, R. #Default: L+R. C.Surr. Mix: To set output means of the surround

left and right audio when playing a stereo disc. #Optional setting: Off, sum, Virt.Surr. #Default: Off. D.Low band: select the channel that you desire

to output low frequency signal. #Optional setting: Front F, Center C, Surround Sr,

Subwoofer SW. #Default: Front F, Subwoofer SW. E.Channels: To set volume of each individual

channel. a. Press [UP/DOWN] navigation keys to select

CHANNEL TRIM, then press the [OK] or

[RIGHT]navigation key to select ENTER

SETUP PAGE as shown in the TV screen:

FRONT

Volume L

surround

R l r Center SW

16 16 16 16 16 16

b.Press [LEFT/RIGHT] navigation keys to select

the desired channel to adjust. c. Press [UP/DOWN] navigation keys to raise or

lower volume of the channel. d. Press [OK] or [LEFT] to return to the Mix..

setup page.

F. Delays: To set delay time of the Center/

Surround/ Subwoofer Speaker. A. Press [UP/DOWN] navigation keys to select

Delays in Channels item, then press [OK] or

[RIGHT] navigation key select ENTER SETUP

PAGE as shown in the TV screen.

Subwoofer

Center

LS/RS

0cm

180cm

b.Press [UP/DOWN] navigation keys to Select

the desired item oup Press [OK] or [RIGHT]

button to enter setting. c. Press [UP/DOWN] navigation keys to raise or

lower volume. D.Press [OK] or [LEFT] to return to the Delays in

channels setting page.

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G. PRO Logic II: To set PRO Logic II to ON or

OFF. If the TITLE does not support this function, we recommend that you set this item to AUTO because it would become worse if the

processing effects were added forcibly. #Optional setting: AUTO, On, Off . #Default: AUTO.

2. Digital output: select to set the format and

stream form of digital audio output. A. SPDIF format:3Optional setting: RAW format,

SPDIF/PCM. #Default: RAW format. B. LPCM #Optional setting: 48 kHz 16bit , 96 Khz 24bit,

192kHz 24bit #Default: 48 kHz 16bit.

NOTE

If HDMI Audio is set in ON, this item is not

adjustable.

3. HDMI Audio: This item is to set whether

the HDMI Audio output is allowed. #Optional settings: SPDIF Multi Channel off. #Default: Multi.

4. Tuning: A. Max volume: set the maximum volume. B.Equalizer: To set Equalizer modes. #Optional setting: Off, Rock, Pop, Live, Dance,

Techno, Classic, Soft. #Default: Off. C. Echo: To set different sound field effects. #Optional setting: Off, Concert, Living room, Hall,

Bathroom, Cave, Arena, Church. #Default: Off. D.Tone balance

: to set the tone level to match

your diapason when you're singing #Method to adjust tone control: a.Press [UP/ DOWN] cursor buttons to select

"tone" item in Audio Setting page, and then

press [OK] or [RIGHT] button to enter

Adjustment Menu. b. Press [UP/DOWN] cursor button to adjust

setting value. c. Press [OK] or [LEFT] button to return to Audio

Setting page after adjustments are done.

2.4.5 Playback

DVD

VCD/SVCD

Files

Repeat

1. DVD:set whether information of advertisement

and warnings at the beginning of DVD disc is

Advertisemenu No

A. P. V

Off

skipped to play the movie directly.

Advertisemenu #Optional setting: Yes, NO #Default: Number

2.VCD/SVCD: To set the PBC status. #When playing Super VCD or VCD2.0 discs, if

the PCB is ON, the menu image displays. #Optional setting: On, Off. #Default: On.

3.Files:data disc may probably includes Mp3,

JPEG and MPG format files in which you may

select DVD player to read the file type. #Optional setting: Audio, Picture, Video. #Default: Audio, Picture, Video.

4. Repeat : select the repeat playback mode. #Optional setting: Off, Single, all. #Default: Off.

2.4.6 Karaoke

Microphone

Kar. help

Volume

Echo

No ast.

1.Microphone: switch on or off microphone. #Optional setting: On, Off. #Default: Off.

2.Kar. help: select accompany singing means. #Optional setting: Channels L, Channels R,

Channels No ast, Channels No voc. #Default: Channels No ast.

3.Volume: A.In microphone setup page, press [UP/DOWN]

cursor to select “Volume” item, and then press

[OK] button to enter the adjustment menu. B.Press [UP/DOWN] cursor to adjust the setup

value. C.After adjustment finishes, press [OK] button

to return to microphone setup page.

Microphone

Kar. help

Volume

Echo

4.Echo: A.In microphone setup page, press [UP/DOWN]

cursor to select “Echo” item, and then press

[OK] button to enter the adjustment menu. B.Press [UP/DOWN] cursor to adjust the setup

value. C.After the adjustment finishes, press [OK]

button to return to microphone setup page.

Off

No ast

- 9 -

Microphone

Playerable discs

Inputs

Outputs Audio outputs

DVD-Video, Super VCD, VCD, DivX 3.11, DivX 4,DivX 5, Divx Pro, XviD, CD-DA, CD+G, DVD-Audio,HDCD, MP3, WMA, Kodak Picture CD, JPEG

MIC input

Analog audio output: Stereo, output 5.1CH Digital audio output: Coaxial,Opcical

Kar. help

Volume

Echo

2.4.7 Preference

Backlight

Gr. equalizer

Screen saver

Off

No ast.

Off

#Default: 7890.

Old password

New password

Verify

Cancel

2.4.9 Initial setup

1.Backlight:This item is used set color of led on the front panel.

#Optional setting: On, Off. #Default: On.

2.Gr. equalizer: This item is used to set wether the Dynamic Spectrum is allowed.

#Optional setting: On, Off. #Default: Off. #Dynamic Spectrum display is invalid in Data

disc DVD AUDIO playback.

3.Screen saver: Open or close the screen saver function.

#Optional setting: On, Off. #Default: On.

2.4.8 Parental control

any

Kid

Allowed..

Set password

Any

1.Allowed..: To set the parental control ratings to prevent children from watching the restricted contents.( In case the disc supports this function.)

#Optional setting: any, Kid, G, PG, PG-13, PGR,

R ,NC-17.

#Default: any.

2.Set password: To set four digit password to enable you to change the parental control ratings.

PG-13

PGR

NC-17

Auto

PAL

NTSC

Press [UP/DOWN] arrow to select the desired option and Press [OK] button to confirm it.

NOTE

In this setup state, you may not press [LEFT] button to return to the previous menu.

2.4.10 Rest to defaults

Load factory settings

OK Cancel

Reset to defaults: To restore all settings to the default value except for the parental control and password settings.

2.4.11 Exit

Language

Image

Sound

Playback

Karaoke

Preference

Parental control

Initial setup

Reset to defaults

Exit

Press [UP/DOWN] arrow to select the Exit item. Press [OK] button to exit the setup menu.

2.5 Specifications

- 10 -

Playerable discs

Inputs

Outputs Audio outputs

Video outputs

Video Characteristics

Audio characteristions

Operating voltage

Power consumption

General Specifications

Operating Temperature

Operating Humidity

15~75%(no condensation)

DVD-Video, Super VCD, VCD, DivX 3.11, DivX 4,DivX 5, Divx Pro, XviD, CD-DA, CD+G, DVD-Audio,HDCD, MP3, WMA, Kodak Picture CD, JPEG

MIC input

Video amplitude 1.0Vp-p(75 ) S-Video amplitude Y:1.0Vp-p(75 ) C:0.286Vp-p(75 ) Component Video amplitude Y:1.0Vp-p(75 ) Cb/Cr:0.7Vp-p(75 )

Frequency response 20~20KHz(±1 dB) Slgnal-to-noise ratio >100(dB) THD <0.01%

Dimensions: 380mm 250mm 41.5mm Mass: 1.86kg

~110V-250V, 50/60 Hz

14W

5~35

Analog audio output: Stereo, output 5.1CH Digital audio output: Coaxial,Opcical

Composite, S-Video, component Y Cb Cr, progressive scan output Y Pb Pr, RGB/SCART

Headphones output

Outputs

#Design and specifications are subject to change without notice.

Play erable disc s

Input

Audio outputs

Video outputs

Video Characteris tic s

Audio c haracteri st ions

Operating voltage

Output

Analog audio out put: S tereo, out put 5.1CH Digital audio output : Coaxi al, Opt ical

Composit e, S-V ideo, c omponent Y Cb Cr, progress ive scan output Y Pb Pr, RGB/SCART

Headphones output

DVD-Video, Super V CD, V CD, DivX 3.11, Di vX 4,Di vX 5, Di vx Pro, XviD, CD-DA , CD+G, HDCD, MP 3, W MA, Kodak Pic ture, JPEG

MIC input

Video ampl itude 1. 0Vp-p(75 ) S-Video amplit ude Y:1. 0Vp-p(75 ), C:0. 286Vp-p(75 ) Component Video amplitude Y: 1.0Vp-p(75 ), Cb/Cr:0. 7Vp-p(75 )

Frequency respons e 20~20KHz (±1 dB) Slgnal-t o-noise rat io >100(dB ) THD <0.01%

~110-250V, 50/60Hz

#We do not guarantee that all discs can be played smoothly due to the disc quality, disc recording quality

and recording format.

- 11 -

#Design and specifications are subject to change without notice.

Power cons umpti on

General Spec ificat ions

Operating Temperature

Operating Humi dity

5~35

15~75%(no c ondensat ion)

Dimensi ons: 380mm 258mm 41.5mm Mass: 2kg

14W

#We so not guarantee that all discs can be played smoothly due to the disc quality, disc recording quality

and recording format.

- 12 -

Chapter Three Principle and Servicing

Section One Principle of the Player

3.1.1 Functions and features

This player adopts new generation DVD decode chip, with built-in Dolby decoder, which creates

vivid surround sound effect to bring you to taste cinema effect. It has the following features:

Progressive scanning output produces steadier and clearer pictures with flickering.

HDMI jack.

5.1CH output.

Composite video, S-video and component video output.

Digital picture adjustment to the sharpness, brightness, contrast, chroma and saturation os

picture, gamma correction.

Built-in Dolby digital decoder.

Karaoke function.

Headphone output function.

USB jack.

Compatible with DIVX, MPEG4 format movie.

3.1.2 Block diagram of the player

Its internal structure is mainly composed of decode & servo board, HDMI high definition board,

input/output board, power board and loader components. Block diagram of the player is shown in the

figure 3.1.2.1, except for power board, other signal flow are all shown in the figure. Main function of

loader is to read disc information and transmit to Mt1389, Mt1389 fulfills servo function through D5954

on decode board and other subsidiary circuit to ensure the normal working of loader. FLASH on decode

board is to save system program, SDRAM is to save program when machine is working and read sound

and picture information from disc to ensure smooth output. Main function of AV board is to output various

video signals.

- 13 -

Earphone

USB

Panel

SDRAM 64M

U211

FLASH16M

U214

CS5340

U203

MIC

TX 0TX 0+

TX 1-

TX 1+ TX 2TX 2+ TXCTXC+

HPD

Audio amplifying audio

U209 U210 U211

Video filtering clamping

VR-DVD

VR-CD

CD/DVD

Switch

IOA

AR ALS

ARS SW

Loader

VR-DVD VR-CD

Laser power

control

MDI

LDO2 LDO1

DVD:A/B/C/D/RFO

CD:A/B/C/D/E/F

V20

TRIN

TROUT

LIMIT

Mt1389HD

U201

HPD HDMI SCL#

HDMI SDA#

TK+ TK- FC+ FC-

INT0#

PWDN#

SL+

SL-

SP+

SP-

U302

AM5888S

LOUD+

LOUD-

TR_B1

REG01

TR_B2

REG02

VIP4

STBY

FOSO

FMSO

DMSO

TRSO

TROPEN

TRCLOSE

Voltage reduce circuit

VCC

3.3V

VCC

1.8V

IOA

27M cock

SCL

EEPROM

U202

SDA

24C02

SLRCK

SBCLK

SACLK

SDATA0

SDATA1 SDATA2 SDATA3

ASPDIF

UREST

Reset

CTR

ASPDIF

YUV1 YUV2 YUV3 YUV4 YUV5 YUV6

SCL SDA

Y1 Y2 Y3

Y4 Y5

Y6 Y7

MT 1392

Rt SL SR

LFE

SY SC

CVBS

G/Y B/U R/V

AV output terminal

- 14 -

Figure 3.1.2.1 Block diagram of the player

HDMI jack

3.1.3 Introduction to IC of the player

PCB semi-finished

product name

IC model Location Function

MT1389HD U201 Decode chip

24C02 U202 EEPROM

CS5340 U203

HCU04 U205 Phase inverter

FLA SH U207 16M FLASH

SDRA M U208 64M SDRAM

4580 U209, U210, U211 Operational amplifier (audio amplifying)

D5954 U302 Servo driv e

PT6961 U401 Panel control IC

HS0038B3V U402 Remote control rec eiver

V IPER2 2 U501 Power sw itch IC

PH817 U502 Photoelectric coupler

LM431A U503 Precision voltage stabilizer

4558 U601 Operational amplifier (audio amplifying)

TDA1308 U603

Operational amplifier (headphone audio

amplify ing)

MT1392E U701 HDMI control

TVS_RCLAMP0514M U703, U704

MIC board

High definition

board

Main panel

Power board

Decode board

Introduction to IC of the player is shown as in the following table:

- 15 -

Section Two Unit Circuit Principle

Pin Name

Signal flow

direction

DVD disc CD disc No disc Function description

1 F- Input loader 2.52 2.34 0.46

2 F+ Input loader 2.49 2.49 0.93

3 T+ Input loader 2.53 2.51 0.94

4 T- Input loader 2.58 2.51 0.93

5 C Input MT1389 2.2 2.25 2.04 Disc data signal

6 D Input MT1389 2.2 3.2 2.04 Disc data signal

7 IOA Input MT1389 0.01 3.2 3.21

Disc identification signal, CD is 3.3V, DVD

is 0V

8 RF Input MT1389 2.21 2.53 1.28 The sum of disc data signal

9 A Input MT1389 2.17 2.22 2.04 Disc data signal

10 B Input MT1389 2.19 2.27 2.04 Disc data signal

11 F Input MT1389 2.07 2.44 2.03 Supplementary signal used in trace

12 GND Ground 0.01 0.01 0 Grounding

13 V20 Input loader 2.04 2.06 2.03 Reference voltage

14 Vcc Input loader 5.04 5.04 5.02 Supply voltage for loader

15 E Input MT1389 2.06 2.45 2.03 Disc data signal

16 Blanking haning in air 0.01 0 0 unused

17 VR-CD Input loader 0.21 0.01 0

Through the handling inside loader, make

sure MD11 is 180mV when reading CD

18 VR-DVD Input loader 0.01 0.2 0

Through the handling inside loader, make

sure MD11 is 180mV when reading DVD

19 LD-CD Input loader 0.09 2.1 0 CD laser power control signal

20 MDII Input MT1389 0.21 0.2 0 CD and DVD laser power monitoring signal

21 HFM Input loader 5.04 5.04 5.02

High frequency overlapping signal produces

laser with different wave length inside

loader

Focus error signal is added to two sides of

pick-up focus coil

Trace error signal is added to two sides of

pick-up trace coil

3.2.1 Introduction to laser head

1. Function introduction to laser head flat cable is shown as the following table:

- 16 -

Note: 1. When reading DVD, there are only A, B, C, D signals.

22 Blanking unused 0.01 0.1 0

23 LD-DVD Input loader 2.21 0.1 0 DVD laser power control signal

24 GND unused 0.01 0.01 0 Grounding

2. When reading CD, there are A, B, C, D, E, F signals.

3. RFO=A+B+C+D.

4. Focus error signal=(A+C)-(B+D) Trace error signal=E-F.

2. Working principle

(1) Laser tube: wave length of loader DVD laser diode is 650nm, wave length of CD laser diode is

790nm, the wave length which is within 370nm and 750nm is visible light, the laser in the course of

reading DVD disc is visible light, and that when reading CD disc is infrared light.

(2) Principle about laser head picks up signal: laser beam projects onto disc, when laser beam

focus projects onto disc vertically, laser beam will produce reflection, reach on light sensor through

reflection loop and converse into electronic signal through photoelectric cell. For the reflection loop

produced in non pit information area and pit information area in disc has difference and reflects into

different position of light sensor, photoelectric diode in different positions on light sensor will produce

different signals to process all signals on light sensor and then produce digital signals.

(3) Focus, trace coil: when laser head is reading signals normally, information side should be in the

focus of laser beam, because of factors of disc error, high speed rotation and machine error, it is

unavoidable that laser beam focus deviates from information face to produce phenomena of orbit boas

and refocusing. Focus , trace coil is added on loader to adjust laser beam to make it correctly focus in

information area.

(4) Formation of RF signal: when disc reading is normal, light sensor will have 160MV, vague and

eye pattern waveform which is added on A, B, C, D respectively, and output RF signal from FRO pin

after being overlapped by adder inside light sensor, the frequency when reading DVD disc is much

higher than that when reading CD disc, output amplitude is about 1.4V.

3.2.2 Servo circuit

1. Servo system of this player adopts SANYO 65 loader and MTK decode solution

(MT1389HD+FLASH (16M) +SDRAM (64M)), and its servo circuit is mainly composed of front end signal

processing, digital signal processing and digital servo processing, digital signal processing IC Mt1389

and drive circuit Am58888, in which Mt1389 is also the main part of decode circuit. Servo circuit block

diagram is shown in the figure

3.2.2.1:

- 17 -

XS101

Switch circuit

APC circuit

A B C D E F RFO

IOA

MD11 LDO2 LDO2

FOSO

FMSO

TRSO

DMSO

Open/close circuit

MT1389

Feed electric machine

Main axis electric machine

Main axis control detect circuit

TK-

TK+

FC+

FC-

SL+

SL-

SP-

SP+

AM5888

Figure 3.2.2.1 Servo circuit block diagram

2. Working principle: after power on or close to proper position, loader laser head begins to reset;

after laser head reaches proper position, detect switch will give a signal to Mt1389, Mt1389 begins to

output focus, main axis and light emission signals, machine begins to rotate, laser head begins to

identify disc information and decide whether disc is CD or DVD according to disc information to facilitate

to output level from IOA pin to make disc switch circuit and laser head PD IC make the relevant control

action. At the same time, Mt1389 adjusts laser output power through laser power control circuit.

After loader reading disc information, A, B, C, D, E, F signals are formed through photo-electric

conversion and sent out to Mt1389 (DVD only has A, B, C, D signals), and then inputted from pin 2~11,

18, 19 of MT1389. After being amplified and processed by the pre-amplifier inside MT1389, now signals

are separated to two part s for processing inside Mt1389. One part, through addition inside Mt1389 and

amplifying and subtraction circuit, produces servo error signal, after being processed by digital servo

signal circuit, corresponding servo control signals form to output FOO, TRO, DMO, FMO digital

servoControl signals from pin 42, pin 41, pin 37, pin 38 of Mt1389 respectively, and FOSO, TRSO,

DMSO, FMSO, through integration circuit composed by resistor capacitor, and send to servo driver

circuit for amplification to bring along focus winding, trace winding, main axis electric machine and feed

electric machine after drive amplification. Among these, focus and trace servo are used to correct

objective position accurately; feed servo is used to bring along laser head to make radial large-scale

move which belongs to the preliminary adjustment to laser head position; and main axis servo is used to

control main axis electric machine to make it read signals in means of constant linear velocity and

bringAlong disc to rotate. After processing of amplification by VGA voltage control amplifier and

- 18 -

equalization Frequency compensation inside MT1389, another part of signals are changed into digital

signals through internal A/D converter. When loader is reading CD/VCD signals, these signals are

conducted EFM demodulation inside MT1389, and then outputted to latter stage for AV decoding after

finishing CIRC (Cross-Interleaved Reed-Solomon Code) error correction inside. When loader is reading

DVD signals, these signals are conducted ESM demodulation inside MT1389, and then sent to latter

stage for decoding after finishing RSPC error correction inside. Normal DVD player has a open/close

circuit to control the in and out of door to reach the purpose of coneying discs; PDVD adopts manual

open means and whether it is close to proper position can be checked by detect switch.

3. Explanation to servo terms

(1) FOO: when rotating, disc may probably move upwards or downwards slightly to make the focus

of laser emitted by laser head cannot justly fall on data pit of disc, so laser head is required to move

upwards or downwards to make focus aim at data pit justly. When laser head is moving upwards or

downwards, it means that pick-up is making focus acts.

(2) TRO: data information is saved in disc in form of tracks. When disc is rotating, trace deviation

will produce and now laser head is required to be adjusted. In this process, it is objective, but the entire

pick-up, that moves forwards or backwards, and the moving range is very small.

(3) FMO: similar to acts of trace, the acts of feed are larger than those of trace. Feed conducts a

large scale movement firstly, and then trace moves slightly in this range. Feed moves for a while, and

does not move for another while; but trace moves all the time. Feed is rough adjustment and trace is fine

and acts are obvious when pwer on and selecting tracks.

(4) DMO: it is the top that holds up disc. Its rotation speed decides that of disc. Its rotation is

generated by an individual DC electric machine, in which rotation speed of DVD is twice over that of CD.

3.2.3 CD/DVD conversion circuit

1. CD/DVD conversion circuit is shown as in the following figure 3.2.3.1:

AVCC

Q305 3904-S

R309

10K R311

10K

IOA

MT1389E

R308

100K

XS301

R310

Q303

2SK3018-S

Figure 3.2.3.1 CD/DVD conversion circuit diagram

Q304

2SK3018-S

- 19 -

100K

2. Working principle

Base

electrode B

Collector C Em itte r E

Grid

electrode G

Drain

electrode D

Source

electrode S

G D S IOA

DVD disc 0 3.86 0 3.81 0.18 0 0 0 0 0

VCD disc 0.64 0.1 0 0 0 0 3.27 0.18 0 3.3

State

Q305 Q303 Q304

After loading disc in the player, IOA port of MT1389 is defaulted high level to make Q305 saturation

on and form loop together with CD laser power control circuit on CD. At the same time, IOA also goes to

loader PD IC to switch, disc begins to rotate, when servo management system recognizes that the disc

in player is not CD disc, IQA pin outputs low level to make Q305 cut off and make Q303 on, and form

loop together with DVD laser power control circuit on loader to perform disc reading acts. After disc tray

door opens, IOA keeps the state before opening disc tray door. If the player cannot recognize which disc

it is, IQA pin will switch continuously until reading disc or system judges that there is no disc.

Note: Q303 and Q304 are MOS tube

3. Key point voltage (unit: V) is shown as the following table:

3.2.4 Laser power control circuit

1. Laser power control circuit is shown as in the following figure 3.2.4.1:

LDO-AV33

R301

XS301

MD1

Figure 3.2.4.1 Laser power control circuit diagram

4.7R

2SB1132-S

4.7R

Q301

Q302

2SB1132-S

R302

LDO-AV33

TC302 47uF/16V

LDO2

20/21

MT1389E

LDO1

TC303 47uF/16V

2. Working principle:Pin 20/21 of MT1389 is laser power detect signal input pin, pin 21 is DVD laser

power strong/weak detect signal input pin, pin 23 is VCD laser power drive control output pin, pin 22 is

DVD laser power drive control output pin.

- 20 -

When reading VCD disc, laser power becomes weak, voltage of MDII pin decreases, voltage

Location number Read DVD disc Read VCD disc Location number Read DVD disc Read VCD disc

V103_E 2.9V 3.2V V104_B 3.2V 2.2V

V103_B 2.2V 3.2V V104_E 3.2V 2.9V

V103_C 2.2V 0 MT 1389_20 0.2V 0.2V

V104_C 0 2.2V

decrease of pin 23 of MT1389 makes voltage of pin 19 of XS301 increase to reach the purpose of raising

laser power. When laser power is too strong, voltage of MDII pin increases to lead to voltage of pin 23 of

MT1389 increase to make voltage of pin 19 of XS301 decrease to reach the purpose of reducing laser

power to form an auto power control circuit.

When reading DVD disc, pin 21 is detect signal input pin, pin 22 is drive control input pin, and the

working principle is the same with that when playing VCD disc.

3. Key point voltage (unit: V) is shown as the following table:

3.2.5 Open/close door drive circuit

1. Open/close door drive circuit is shown in the figure 3.2.5.1:

27K

TRSO

FC+ FCSPSP+ LOAD+

LOAD-

TKTK+ SL+ SL-

AM5888S

Figure 3.2.5.1 Open/close drive circuit diagram

STBY

V1P4

FMSO

TRCLOSE

TROPEN

DMSO

FOSO

2. Working principle: when machine is reading disc normally, pin 6, 7, 9, 10 of AM5888S is 0V. After

R203

R202

R314

10K

R204

15K

MT1389

R201

10K

27K

pressing OPEN button, pin 6 inputs high level, pin 10 LOAD+ outputs high level, electric machine rotates

positively and performs the action of opening door. When closing door, pin 7 inputs high level, pin 9

LOAD- outputs high level and forms loop to pin 9 through electric machine, electric machine rotates

reversely and performs action of closing door. After closing to proper position, all pins are low level.

Servo drive principle is the same with that of D5954 solution, so we will not introduce here.

- 21 -

3. Key point voltage (unit: V) is shown as the following table:

Base electrode B Collector C Em ittor E Base electrode B Collector C Em ittor E

Read disc 5.06 5 5.06 5.01 5.03 5.06

Open disc tray to

proper position

4.79 4.77 5.06 4.77 4.79 5.06

Open disc tray 4.74 5.05 4.74 4.76 0.2 4.76 5.06 4.76 4.33 4.76 4.76 5.02 4.76 5.06

Close disc tray 4.74 4.33 4.74 4.76 5.05 4.76 5.06 4.76 5.03 4.76 4.79 0.2 4.79 5.06

Base electrode B Collector C Em ittor E Base electrode B Collector C Em ittor E

Read disc 0 5 0 0 5.03 0

Open disc tray to

proper position

0 4.77 0 0 4.79 0

Open disc tray 0 0.93 0 4.76 0.2 4.76 0 0 4.79 5.02 4.79 0

Close disc tray 0 4.76 5.05 4.76 0 0 0.93 0 4.79 0.2 4.79 0

Base electrode B Collector C Em ittor E

Read disc 0 0 0 0 0

Open disc tray to

proper position

0 0 0 0 0

Open disc tray 0 0.63 0 0 0 0 3.12 0 0

Close disc tray 0 0 0.93 0 0 0 0 3.12 0

State

Q309

Q307Q306

Q308

Q310

OUT IN

3.2.6 Main axis control circuit

1. Main axis control circuit is shown as in the following figure 3.2.6.1:

C307 222

SP-

SPL-

R320 150K

R321 1R

R317 680K

C308 222

R318

R319 150K

R322 680K

OPO

ADIN

OP-

OP+

V1P4

MT1389

Figure 3.2.6.1 Main axis control circuit diagram

- 22 -

2. Function: disc is always in high speed rotation in the course of disc reading, when you need to

Key point Position Normal w orking voltage (V) Volateg change w hen disc out ( V)

SP+ Pin 11 of D5954, pin 5 of XS307 3.79 3.79 0.70 1.80

SP- Pin 2 of D5954, pin 6 of XS307 1.38 1.38 3.40 1.80

OP+ Pin 36 of MT1389 1.38 1.38 3.10 1.80

OP- Pin 35 of MT1389 1.53 1.53 3.08 1.98

OPO Pin 34 of MT1389 2.44 2.44 0.40 2.50

ADIN Pin 47 of MT1389 2.44 2.41 0.41 2.44

DMSO Pin 5 of D5954 1.42 1.42

VIP4 Pin 30 of MT1389 1.41 1.41

open the door to change disc, MT1389 stops the positive direction drive signal which is given to main

axis drive circuit, for the function of inertia disc is still rotating. If disc out order is performed at this time,

disc will be abrasively damaged. Therefore, machine must be baking to main axis, that whether disc has

stopped rotating and whether disc is reversing, decode chip of the machine cannot recognize. So a main

axis control circuit is added to make decode chip can effective monitor that whether disc has stopped

rotating.

3. Working principle: MT1389 has a comparator inside composed of operational amplifier, in which

OP+ is the in-phase input end of operational amplifier, OP- is reverse input end, OPO is output end,

when playing disc normally, for electric machine is positive direction rotating, voltage of OP+ is higher

than that of OP-, voltage of OPO is more than 1.4V. When disc out is needed, main axis drive signal

stops, for electric machine is permanent magnetic, when in rotating, induced electromotive force

produces in two ends to give to decode chip through R320, R319 sampling to make OPO output less

than 1.4V voltage and transmit to input pin of MT1389 ADIN through R318. When ADIN is high level,

main axis drive output end has not any drive signal output, when ADIN is low level, MT1389 outputs a

reversing drive signal to main axis drive circuit to make main axis electric machine speed down. Thus

circular working goes on until main axis stops rotating. PDVD is manual disc out means, so after disc out,

disc is still rotating, but will stop very son.

4. Key point voltage (unit: V) is shown as the following table:

- 23 -

3.2.7 Decode circuit

1. Decode circuit block diagram is shown as in the following figure 3.2.7.1:

FLASH

PWR

PRD

PCE

A0~A20

AD0~AD7

URST

Reset circuit

MT 1389

SDA SCL

EEPROM

24C02

Figure 3.2.7.1 Decode circuit block diagram

Clock

27M

V18

1.8V voltage regulating

U206

SDCLK

SDCKE

DCS

DRAS

SWE

SDRAM

DQM0

DQM1

DQ0~DQ15

MA0~MA11

2. Working principle: this decode circuit is mainly composed of MT1389, SDRAM and FLASH.

Working condition of decode circuit has:

(1) Reset: refer to reset circuit working principle for details.

(2) Clock: this system adopts 27M external clock input, and produces clock signal required by

system inside through internal frequency doubling circuit.

(3) Power: decode chip adopts twp groups power supply of 3.3V and 1.8V, in which 1.8V mainly

supply power for internal logic control circuit and we call it core voltage.

After power on, reset circuit performs reset to MT1389 built-in CPU (8032) and FLASH, decode chip

outputs reset signal at the same time and performs reset to other circuit. After system reset, it firstly

sends out read signal to FLASH to read out in formation saved in FLASH, the machine displays power-

on picture, servo system begins to work to check whether machine closes door to proper position and

whether detect switch has been closed, if not, the door close action is performed. After detect switch of

door is closed, the machine begins to perform preparations of disc reading and performs panel display

at the same time of working.

Playback process: laser head picks up disc signal from disc, after servo system processing, then

send to decode circuit for decoding, signal after being decoded is saved in SDRAM for the moment.

When machine needs to replay signal, decode circuit calls information inside SDRAM to perform D/A

conversion and then output.

- 24 -

User information storage: information content set by user is saved inside EEPROM, if user does not

refresh or reset this information, it will saved in IC permanently.

Audio, video output circuit: at present, MT1389 all integrates video D/A converter, MT1389E inside

integrates audio D/A converter, manufactures select according to their own needs. Please refer to

circuit principle diagram and audio circuit explanation for details.

3.2.8 Video circuit

1. Video signal flow chart diagram is shown as in the following figure 3.2.8.1:

YUV1

191

YUV2

189

YUV3

187

YUV4

185

MT1389

YUV5

183

YUV6

182

L225

L226

L227

XS204

D209

D210

D211

L701

L702

L703

Figure 3.2.8.1 Video signal flow chart

VIDEO-SY

VIDEO-SC

VIDEO-CVBS

JK703

D703

D704

D705

VIDEO-G/Y

VIDEO-B/U

VIDEO-R/V

VIDEO

SCART

2. Working principle: MT1389E has built-in video D/A conversion circuit, video output has R/B/G

Y/Pb/Pr Y/Cb/Cr CVBS Y/C output mode, in which R/B/G Y/Pb/Pr Y/Cb/Cr Y/C cannot output at the

same time and need the switch through software. CVBS is a separate output mode, 4-path video signal

outputted by MT1389, through video filtering clamping, output to AV board.

Shown as in the figure 3.2.8.2, capacitor C287, C288 and inductor L214 compose a low-pass filter

to filter high frequency disturbance signal except useful signal; dual diode D211 composes a limiter

circuit, known from features of diode that the max amplitude of composite video signal CVBS cannot be

over 5.7, and the mix cannot be less than -0.7, thus the high voltage signal from TV set can be avoided

burning down the player.

5VV

L227

YUV3

1.8uH

VIDEO_CVBS

D211

R248

75R

VGND

C287

C288

101

Figure 3.2.8.2 Video output circuit

101

- 25 -

1N4148*2

VGND

3.2.9 Reset circuit

1. Reset circuit is shown in the figure 3.2.9.1:

DV33

TC208

R221

10K

URST#

R222

33R

47uF/10V

R220

C272

1N4148

D201

R219 10K

Q201

2SC1815-YS

104

GND

Figure 3.2.9.1 Reset circuit diagram

2. Working principle: after power on, voltage of DV33 increases to 3.3V, main chip power supply is

normal, because voltage of DV33 cannot change suddenly, Q201 base electrode has current in, Q201 is

saturated on, URST is low level; DV33 charges TC208 through R219 and Q201 emitter electrode to

make TC208 cathode voltage decrease slowly. When this voltage reduces below 0.7V, Q201 cuts off,

URST changes into high level, and the process for URST from low to high is called low level effective

reset signals by us. After power off, DV33 voltage reduces, TC208 and DV33 voltage reduce together,

D201 performs surge discharge and clamping to Tc208.

3.2.10 Audio circuit

1. Audio circuit block diagram is shown in the figure 3.2.10.1:

SLRCK

AMDATA

MT1389

CS5340

ASPDIF

228

227

226

224

223

222

SACLK SBCLK

CTR

ALS

ARS

filtering

Audio amplifying

Mute circuit

MIC board

IEC958

AV board

Audio terminal

Figure 3.2.10.1 Audio circuit block diagram

- 26 -

2. Working principle: MT1389 has built-in DAC conversion circuit, which stimulates audio signals to

output from decode chip directly, through audio amplifying and filtering circuit, directly output audio

signals to audio terminal. Another path of L/R signal outputs to headphone circuit of MIC board for

processing and then output from headphone.

3. External Karaoke input and output

Trough CS5340 A/D conversion circuit, MIC signals switches to digital audio signals to input to

decode chip for echo and volume processing and then output together with audio signals L/R to fulfill the

purpose of Karaoke.

3.2.11 Mute circuit

1. Mute circuit is shown in the figure 3.2.11.1:

R2103 1K

R2104 1K

R2105 10K

Figure 3.2.11.1 Mute circuit

R2106 10K

Q212

2SC1815-YS

Q213 1015

AGND

R2108 10K

D203 1N4148

MUTE-1

Q214 1015

AGND

R2109 10K

D204 1N4148

DV33

TC235

100uF/10V

VMUTE

R2107 10K

R2101

100K

DV33

TC238

100uF/10V

-9V

Q211 1015

+9V

2. Working principle of quieting circuit

When the player is playing normally, shown in the figure 2.11.1, chip outputs analog audio signals

and a low level signal at the same time to VMU

TE to make Q211 on, voltage of Q211B electrode is about

2.7V, voltage of Q211 collector electrode is about 3.3V, so Q212 is also on, voltage of B electrode is

about 0.7V, voltage of Q213 E electrode is close to zero, Q213 cuts off, MUTE-1 is negative voltage

which is added to base electrode of mute tube of audio output end to make mute tube cutoff, audio

signals output through being amplified by 4580. When in mute, MT1389E has no audio signals to output

to operational amplifier, so audio output end of the player has no audio output, because electrical

elements and IC in circuit will produce some noise to send to audio output end of the player, in order to

filter these noise, decode chip outputs a high level to VMUTE to make Q211 cutoff, so Q212 cuts off, +5V

power transmits to base electrode of switch pipe Q205 - Q210 through E, C electrode of Q213 and circuit

is in mute.

When machine is not playing discs, decode chip outputs a high level signal to VMUTE to make

circuit enter circuit mode.

- 27 -

3. Working principle of power-off quieting:

Key point E F G H I J K L M

No mute 2.5 3.2 0.7 0.12 -0.15 -4.27 -4.27 4.9 4.9

Mut e 3.2 -3.86 -3.87 1.4 0.7 1.3 -4 4.9 4.9

Shown in the figure

3.2.11.1, when the player is working normally, D204 is on, +5V charges

capacitor Tc235 through D204, now voltage of Q214 emitter electrode is lower than that of base

electrode, Q214 cuts off. When power off, +5V disappears, base electrode of Q214 changes to low level,

And the emitter electrode changes to high level due to discharge of TC235, now Q214 is on, Q214

collector electrode (AMUTE) outputs high level to add to base electrode of switch pipe Q

205 - Q210,

switch pipe is saturated, noises that produce in the course of power off is bypassed to ground, that is

power off quieting function is realised.

4. Key point voltage (unit: V) is shown as the following table:

3.2.12 Power circuit

1. Power circuit block diagram is shown as in the following figure 3.2.12.1:

Rectification

Power grid filtering

Protector tube

Power socket

Filtering

HOST GND

Switch IC

Rectification

Absorption loop

VIPER22A

Feedback winding

Photoelectric coupling

Transformer

TLV 431

Figure 3.2.12.1 Power circuit block diagram

Sampling circuit

Filtering

+9V

LED+5V

+5V

+3.3V

-21V

FL-

FL+

2. Working principle

(1) Power grid filtering circuit: various electromagnetic radiation exists in surroundings, so it will

produce interference to the inputted AC power, and the function of power grid filtering circuit is to filter

these interference to make those that enter bridge rectification circuit are pure 220V AC power.

- 28 -

(2) Bridge rectification and filtering circuit: the function of this circuit is to converse electric supply

into DC power, the voltage after being rectified and filtered is 1.414 times of input power, so the DC

voltage at the two ends of TC501 is about equal to 300V

(3) Absorption loop: for power is always working in on/off state and will produce very high peak

voltage, in order to well protect switch IC, a peak absorption loop is added.

(4) Filtering circuit: the function is to produce a stable and slamm-wave DC voltage. In filtering

circuit, “ " type filter is mostly adopted. The feature of capacitor filtering is high load resistance, when

current is small, filtering is obvious, but inductor filtering is small load resistance, when current is large,

filtering is obvious. To compose capacitor into “ " type filter can make better filtering effect.

(5) Feedback loop: the time length of “on” and “off” within the same cycle inside switch module

VEPR22 is decided by feedback loop. Feedback loop performs sampling to +3.3V output stage voltage,

when output stage voltage is too high, the sampled voltage is on high side, through feedback loop, to

change the duty ratio of pin 3 signal of VEPR22 and reduce on time, and output voltage begins to reduce.

When output voltage is too low, the sampled voltage is on low side, through feedback loop, to make duty

radio of VEPR22 increase, output voltage increases, through the function of feedback loop, power board

is made to output stable voltage. The used LM431 in this power is a 2.5V comparator, sampling voltage

is compare with this 2.5V voltage, when sampling voltage is more than 2.5V (means that output voltage

is on high side), LM431 is on, light emitting diode in photoelectric diode begins to emit light to make the

other end of photoelectric coupler begin to be on, light emitting diode is stronger, the on degree bigger,

the on time of switch module VEPR22 decreases, output voltage begins to decrease. When sampling

voltage is less than 2.5V (means output stage voltage is on low side), Lm431 is cut off, on time of

VEPR22 increases, output voltage increases. Thus through auto control function of feedback loop,

power board is made to output stable voltage.

3.2.13 USB jack circuit

1. USB jack circuit block diagram is shown in the figure 3.2.13.1:

USBP

USBM

XS601

USB 5V

A5V

USB

JK602

Figure 3.2.13.1 USB jack circuit block diagram

2. Working principle: USB jack is composed of two data lines of USBP and USBM, one power supply

line USB5V and grounding line (outside casing). Pin 48,49 of MT1389 is USB data jack, which outputs to

USB jack through XS601 and can read data inside USB device.

- 29 -

3.1.14 AV output board circuit

Pin Name

Signal

direction

Function descr iption Pin Name

Signal

direction

Function descr iption

1 A(B)OUT I Audio right channel input 12 NC Netw ork communication data line 2

2 A(B)IN O Audio right channel output 13 RETURN Pr signal ground

3 A(A)OUT I Audio left c hannel input 14 RETURN Blanking signal ground

4 A-COM Audio signal ground 15 RED I/O I/O Pr signalI/O port

5 RETURN Pb signal ground 16 BLK I/O I/O Blanking signal I/O port

6 A(A)IN O Audio left c hannel output 17 RETURN Blanking signal ground

7 BLUE I/O I/O Pb signalI/O port 18 TRTURN Composite video signal ground

8 FUNCSW I Function selection jack 19 V-OUT I Composite video signal input

9 RETURN Y1 s ignal ground 20 V-IN O Composite video signal output

10 CONT I/O

Netw ork communication data line 2

21 GND Commo n

11 GREEN I/ O I/O Y1 signal I/O port

1. AV output board is mainly composed of audio/video output terminal,

mode switch circuit and filtering circuit. output board outputs different signals to connect with the

SCART output terminal,

corresponding external equipment. AV output board circuit block diagram is shown as in the following

figure

3.1.14.1:

PDAT2 PDAT1

VIDEO#

XS701

SPDIF

+10V

R# L#

Y1 Pb

Mode switch

RGB_CVBS

AV_TV

XS702

SCART

Component video output terminal

Optical, terminal

MIC fetch

Figure 3.1.14.1 AV output board circuit block diagram

2. Introduction to SCART terminal

(1) Working principle: SCART terminal integrates video and audio all together and it may transmit

video and audio signals at the same time. The operation is convenient, 21 pins in all and lies in the

central part on the rear side of the player.

(2) SCART terminal pin function is shown as the following table:

- 30 -

(3) SCART terminal function selection is shown as the following table:

PDA TO PDA T1 PDA T2 Pin 8 of SCART terminal Function

0 × 0 10V AV4:3

0 × 1 7.5V AV16:9

1 × 0 0.90V TV

1 × 1 0.85V TV

× 0 × × CVBS MODE

× 1 × × RGB MODE

Note: PDAT0 and PDAT2 are used to control input voltage of pin 8 of SCART terminal; PDAT1 is

used to control voltage change of pin 16 of SCART terminal and the voltage on pin 16 controls SCART

terminal to select RGB mode or CVBS mode.

3.2.15 Panel control circuit

1. Panel control circuit block diagram is shown in the figure 3.2.15.1:

Remote controller

Button

LED screen

Figure 3.2.15.1 Panel control circuit block diagram

IR sensor

U401(PT6961)

Light emission diode

LEDST, LEDCK, LEDAT

Decode

2. Working principle

Panel control components are divided into main panel and subsidiary board parts. Main panel is

mainly composed of LED screen, drive chip PT6961, remote control IR sensor, buttons and indicator

light; and subsidiary board is mainly composed of power button and power indicator light.

Function of U401 (PT6961) is to process data signals sent from decode board and then drive

display screen to display the relevant state, and scan panel buttons matrix at the same time, then

process button information and send to CPU in the means of digital signals to control the player to make

the relevant action.

Pin 2 of remote control IR sensor HS0038B3V is 5V power supply pin, pin is grounded, pin 3 is

output pin. After receiver processes button information of remote control, it outputs from pin 3 to send to

decode board directly.

- 31 -

3.2.16 HDMI circuit

1. HDMI circuit block diagram is shown in the figure 3.2.16.1, “Source” refers to device with HDMI

output jack and “Sink” refers to device with HDMI input.

HOUSE Source

Video

Audio

Control Status

HDMI Trasmitter

Figure 6 HDMI circuit block diagram3.2.1 .1

TMDS Chnanel 0

TMDS Chnanel 1

TMDS Chnanel 2

TMDS Clock Chnanel

Display Data Channel

HDMI Sink

Video

HDMI Receiver

Audio

Control Status

2. Working principle: besides from normal AV output, this player also has HDMI output. Normal AV

output is the same with that of other normal DVD players: process the analog audio and video signals

decode by, and then send to analog output terminal; digital audio output signal ASPDIF is directly send

to digital output terminal. Analog video signal and digital video signal sent by 1389 are sent to MT1392E

(U701) for processing, and digital audio signal is sent to MT1392E; MT1392E is a format conversion

processor, which switches normal audio and video signals into HDMI standard format, HDMI switches 8-

bit data into 10-bit signal through decoding and outputs in the means of differential transmission. Audio

and video signals transmit through 3 TMDS data channels. Signals outputted from MT1392E are directly

sent to HDMI jack to fulfill HDMI output. The working principle of HDMI jack is to transmit digital high

definition signals without any damage with advantages that no extra loss in the course of transmission,

digital signal and analog signal can be transmitted at the same time, transmission speed may be

increased, resolution is not controlled by SXGA, usage is simple ans cost is reduced. Digital video

signal Y0-Y7 outputs from pin 157-165 of 1389 to send to pin 13-20 of 1392E. 8-channel digital audio

signals output from pin 197, 202, 203, 209-212 of 1389 to send to pin 73-79 of 1392E, and YNC digital

audio ASPDIF of 1389 outputs from pin 216 to send to pin 72 of 1392E. Pin 182, 185, 183 of 1389 output

analog video signal R, G, B which are sent to pin 68, 70, 71 of 1392E. Clock signal 1392 VCK of 1392E

is produced by 1389 and outputs from pin 166, the communication format between 1389 and 1392E is

- 32 -

I2C bus from pin 101, 102 of 1389B to pin 21, 22 of 1392E. Line synchronous signal HSYNC# and filed

synchronous signal VSYNC# outputted by 1389 from 179, 181 are sent to pin 38, 39 of 1392E. Pin 110 of

1389 outputs signal to send to pin 27 of 1392E to fulfill the control to 1392E. HDMI_SCL#, HDMI_SDA#

are display data channel, which outputs from pin 103, 104 of 1389 to HDMI jack, DDC (display data

channel) is responsible to report information about the setup and performance of receiving device to

other device, which needs E-EDID (Enhanced Extended Display Identification Data) that reads receiving

device to fulfill.

- 33 -

Section Three Servicing Cases

3.3.1 Servicing cases

Example 1 Symptom: power not on

Description: insert power plug, standby indicator light is not on and the player cannot be switched

on.

Analysis and troubleshooting: test power board 5V, 3.3V voltage and they are normal; check decode

board 1389 chip power supply and they are 3.3V and 1.8V, which is normal; use oscillograph to check

clock frequency 27MHZ crystal oscillator of 1389 chip and observe whether oscillation frequency is

normal; we find that crystal oscillator has trouble, after changing it, trouble is removed.

Example 2 Symptom: power not on

Description: insert power plug, standby indicator light is not on and the player cannot be switched

on.

Analysis and troubleshooting: test power board 5V, 3.3V voltage and they are normal; check

decode board 27MHZ crystal oscillator frequency and it is normal; test 1389 chip power supply voltage

3.3V, 1.8V and find that there is no 1.8V power supply voltage; check Q306, Q309 and find that Q306

has rosin joint; weld again and trouble is removed.

Example 3 Symptom: no mute function

Description: when playing, press MUTE button, there is mute icon but no mute function.

Analysis and troubleshooting: when playing, test Q213 collector electrode C pin voltage and it is -

2.24V, which is normal; press MUTE button on remote control, use voltage level of multimeter to test

Q213 collector electrode C pin voltage and it is negative voltage, which should be 1.4V in normal

conditions; check 9V power supply voltage and it is normal; test Vd203 anode voltage and it is 0, 7V,

which is normal, so we doubt trouble is caused by Q213; change Q213 and trouble is removed.

Example 4 Symptom: no MIC

Description: when reading disc, sound is normal, there is picture but no microphone function.

Analysis and troubleshooting: power on, use remote control to switch on microphone, insert

microphone, use probe of oscillograph to test OKA pin of MIC board Xs206, speak and there is signal

- 34 -

Output; check decode board U203 OKR, OKL and there is signal input; test U210 power supply 3.3V

and it is normal; use oscillograph to test three data clock of SACLK, SBCLK, SLRCK that 1389 chip

outputs to U210 and they are normal, so we doubt that the trouble may be caused by U203 or rosin joint;

weld U203 again , test and trouble is removed.

Example 5 Symptom: HDMI has no sound output

Description: HDMI has pivture but no sound, AV is normal

Analysis and troubleshooting: check U701 Mt1392 power supply voltage 1.8V, DV3.3V and they are

normal; check pin 25 reset voltage of U701 and it is 3.3V, which is normal; check 3 audio data outputted

by 1389 chip; ,use oscillograph to test pin 75 of U701 and find SDATA1 has no audio data input; check

1389 chip SDATA1 and there is data output; use resistance level of multimeter to test the line from 1389

chip to U203 and it is not well connected, and a segment of copper line cuts off; after repair the line,

connect and trouble is removed.

Example 6 Symptom: not read CD disc

Description: when reading CD disc, “NO DISC” displays

Analysis and troubleshooting: load CD disc an test; check Q302, pin E voltage is 3.3V, pin B voltage

is 0V, pin c voltage is 3.3V, but, when reading CD disc normally, pin E voltage is 3.14V, pin B voltage is

2.2V, pin C voltage is 2.45V, so we doubt Q302 or circuit around has trouble; take down decode board

and find TC303 of B panel is joint welding; weld again and trouble is removed.

Example 7 Symptom: not read disc

Description: not read CD disc and DVD disc

Analysis and troubleshooting: check laser head and there is laser output, and also focus, trace,

feed and man axis actions, but feed act has abnormality; the normal feed act is to bring laser head to

make small distance movement, but feed range of trouble machine is nearly up to frame terminal, so

firstly check feed circuit, and capacitance of C211 becomes small; after changing capacitor, trouble is

removed.

Example 8 Symptom: surround has no waveform

Description: surround has no waveform output

Analysis and troubleshooting: check pin 1, 7 of U210 and there is waveform output; check Tc248,

Tc249 and they both have waveform output; when checking Q207, Q208, we find that Q207 has rosin

joint; after welding again, trouble is removed.

Example 9 Symptom: disc reading is slow

Description: when reading CD, DVD disc, it is slow.

Analysis and troubleshooting: when checking nerve line and nerve line jack, we find that resistance

- 35 -

Value on two ends of nerve line and nerve line jack is large; change nerve line jack XS301 and trouble is

removed.

Example 10 Symptom: not read disc

Description: not read any discs

Analysis and troubleshooting: not read any discs, observe laser head action carefully and find there

is no focus action; test focus signal outputted by decode chip and it is normal; this signal is m\normal

until 5888, so change 5888 of the same model, trouble is removed.

Example 11 Symptom: power not on

Description: +5V, +9V, -9V, +3.3V have no output

Analysis and troubleshooting: check power board and find each path voltage has no output; check

and find 220V voltage input is normal, and bridge rectifying circuit has no voltage output; use multimeter

to test fuse tube and it has open circuit; change fuse tube and trouble is not removed. Test Tc501 anode

and there is still no voltage output, fuse tube is burnt down; check 4 diodes of bridge rectifying circuit

and they are all normal, Tc501 has no abnormalities of liquid leakage and stricken through; test pin 1 and

8 of U501 (switch IC) and it has short circuit; this IC has been stricken through; after changing IC,

trouble is removed.

Example 12 Symptom: power not on

Description: +5V, +9V, -9V have output, but +3.3V has no output.

Analysis and troubleshooting: test each path voltage output of power board and find there is no

+3.3V voltage output; check C510, TC506, TC505, L507, D507 and they are all normal; check D509

cathode and find there is no voltage output; test D509 and there is open circuit; after changing D509,

trouble is removed.

Example 13 Symptom: HDMI has no output

Description: connect with HDMI and there is no display

Analysis and troubleshooting: test H601 and V601 signal on decode board and they are normal;

test H601 and V601 on high definition board and find H601 signal is not normal; test R701 and it has

open circuit; change R701 and trouble is removed.

Example 14 Symptom: noise appears when power on

Description: when power on, only right channel has a bump sound, after increasing volume, there is

current sound and sound quality is abnormal, and other channels are normal.

Analysis and troubleshooting: according to symptom, in audio signal outputted by right channel,

there is some DC component and trouble lies in audio part. Use multimeter to check right channel audio

- 36 -

output and there is 2.45V voltage; check each signal output pin of U209 and there is 2.5V voltage;

check two ends of Tc240 capacitor and there are 2.5V voltage; power off and test Tc240 capacitor and

there is 200-ohm resistance; after changing this capacitor, trouble is removed.

Example 15 Symptom: HDMI has no output

Description: other video channel output is normal, only HDMI port has no output

Analysis and troubleshooting: when this trouble appears, check pin 18 of HDMI output terminal,

+5V detect voltage is only 1V; then test voltage in L715 and find voltage on two ends of L715 inductor

have 4V voltage difference; use multimeter to test L715 resistance and it is about 1K , now inductor

has totally become resistance; after changing it, trouble is removed.

- 37 -

3.3.2 Troubleshooting flow chart

1. Troubleshooting process for “power not on” is shown in the figure 3.3.2.1:

Power not on for the player

Whether

power board +5V

power supply is

normal

Whether

3.3V, 1.8V power is normal

Check

whether 27M clock is

normal

Whether reset is

normal

Check according to troubleshooting process for “Power board not on”

Whether DV33 1.8V voltage stabilizing circuit is

normal

Check clock circuit

Check reset circuit

Check 3.3V or 1.8V voltage

stabilizing circuit

Check

whether SDRAM and

FLASH power supply is

normal

Check

whether SDRAM and

FLASH power supply is

normal

Whether

firmware is normal

whether SDRAM clock is

Check

normal

Check power supply loop and filtering circuit

Upgrade again, if not, change FLASH

whether FLASH and

MT1389 have rosin

Weld again

Check

joint

Check

whether SDRAM is

normal

Change MT1389HD

Change MT1389 or FLASH

Change MT1389 or SDRAM

Figure 3.3.2.1 Troubleshooting flow chart for “Power not on”

- 38 -

2. Troubleshooting process for “Video has no output” is shown in the figure 3.2.2.2:

Video has no output

Check

whether output

mode switch is

correct

Restore setup mode

Check

whether 27M clock is

normal

Whether

component video has

output

Whether

composite video has

signal output

whether power

supply of MT1389 video

output part is

Change MT1389

Check component video output circuit

pin 187 of MT1389

has signal

whether JK703 has

signal output

Check

normal

Whether

output

Check

Restore setup mode

Change MT1389

Check video filtering circuit

Change JK703

Figure 3.2.2.2 Troubleshooting flow chart for “Video has no output”

- 39 -

3. Troubleshooting process for “No sound output” is shown in the figure 3.2.2.3:

No sound output

Whether

+9V, -9V power supply

is normal

Whether

decode chip has audio

signal output

Whether

Q213 collector electrode

is low level

Check according to troubleshooting of "Single channel has no sound"

Check power supply circuit

Check decode chip

Check mute circuit

Figure 3.2.2.3 Troubleshooting flow chart for “No sound output”

- 40 -

4. Troubleshooting process for “Left channel has no sound” is shown in the figure 3.2.2.4:

Left channel has no sound

Check

whether pin 226 of

MT1389 has sound

output

Check

whether pin 2 of

U209 has audio signal

input

Check whether pin 1 of U209 has signal

output

whether L205 has signal

Check line and terminal

Check

output

MT1389 has trouble

Check the line between MT1389 and U209

U209 has trouble

Check Q206

Figure 3.2.2.4 Troubleshooting flow chart for “Left channel has no sound”

- 41 -

5. Troubleshooting process for “Power not on” is shown in he figure 3.2.2.5:

Power not on

Whether

two ends of TC501

have 300V

voltage

Whether

each pin voltage of

U501 is

normal

Check

U501 peripheral and

transformer

Whether

cathode of D510 has

power output

Check U501 and transformer

Check D501 and transformer

Whether two ends of power grid filter have AC

input

Check rectifying tube D501 D504

Change U501

Check fuse tube and power cord

Whether

pin 4 of CN501 has

power output

Whether

+5V voltage output is

normal

Figure 3.2.2.5 Troubleshooting flow chart for “Power not on”

Check +5V filtering circuit

Check peripheral elements of feedback loop

Check

whether TLV431 and

photoelectric coupler

are normal

Change TLV431 or photoelectric coupler

- 42 -

6. Troubleshooting process for “Not read disc” is shown in the figure 3.2.2.6:

Not read disc

Check

whether loader has

reset when no

disc in

Observe

whether object lens

has up/down focus

action

Whether

pin 26 of AM5888S

has feed signal

input

Check

whether pin 17/18

voltage of AM5888S

is normal

Check line and elements between AM5888S and feed electric machine

Whether

pin 1 of AM5888S

has focus signal

input

Check

whether pin 13, 14

voltage of AM5888S is

normal

Check whether disc in/feed to proper position detect circuit and MT1389 are normal

Check AM5888S

Check Mt1389 and R204, C213 are normal

Change AM5888S

Whether

main axis electric

machine rotates

Whether

laser head emits light

Check whether pin 1, 2 voltage of XS301 is normal

Whether

pin 4 of AM5888S

has signal input

Check

whether pin 11, 12

voltage of AM5888S is

normal

Check electric machine

Check

whether APC

circuit supplies voltage

for laser head

Check whetherMT1389 and R201, C210 are normal

Check AM5888S

Check

whether LDO_DV33 is

normal

Check whether MT1389 and R201, C210 are normal

Change loader

- 43 -

Load

disc and observe

whether disc rotation

speed is

normal

Change

loader and check

whether it is

normal

Check

whether LDO_DV33 is

normal

Check

whether LD01 is

normal

Change 24P flat cable cord

Whether

there is RF signal

Whether

ABCDEF signal is

normal

Change loader

Check XS301 and flat cable

Check whether MT1389 and R201, C210 is normal

Check MT1389

Check MT1389 and peripheral elements

Figure 3.2.2.6 Troubleshooting flow chart for “Not read disc”

Check MT1389 and peripheral elements

- 44 -

Section Four Waveform diagram

This section collects signal waveform diagram of audio, video and each unit circuit with the purpose

to help servicing personnel to judge where trouble lies in accurately and quickly to improve servicing

skills. For the difference of oscillograph's type, model and tuner, a certain difference may exist, so the

servicing personnel are expected to pay more attention to check in daily operation.

1. Waveform diagram for pulse DC of power board D513 anode

2. RFO signal waveform diagram of pin 17 of XS301

- 45 -

3. A signal waveform diagram of pin 15 of XS301(B C D E F

4. DMO signal (when there is main axis rotation) waveform diagram of pin 37 of U201 (Mt1389)

5. FMO signal (when there is feed) waveform diagram of pin 38 of U201 (MT1389)

- 46 -

6. TRO signal (when there is trace) waveform diagram of pin 41 of U201 (MT1389)

7. FOO signal (when there is focus) waveform diagram of pin 42 of U201 (MT1389)

8. Waveform diagram of pin 29 (when no disc in) of U207(FLASH)

- 47 -

9. Waveform diagram of pin 38of U208 (SDRAM)

10. Video signal waveform diagram

11. ACLK (12.2878MHZ): waveform diagram for external clock signal

- 48 -

12. ABCK (3.07195MHZ): waveform diagram for bit clock signal

13. ALRCK (48KHZ): waveform diagram for left/right channel clock signal

14. SDATA0: waveform diagram for mixed left/right channel digital signal

- 49 -

15. SDATA1: waveform diagram for surround left/right channel digital signal (now the disc being

played is 2.1CH, and this signal has no output; if 5.1CH, the form is the same with that of SDATA0)

16. SDATA2: waveform diagram for centre subwoofer digital signal

17. 1KHZ audio signal output waveform diagram (it is suggested to use test disc, if not, waveform

tested will change at any time, which will affect your judgment).

- 50 -

18. LEF#: waveform diagram for subwoofer channel analog signal

19. AMDAT: waveform diagram for microphone signal after 5340 A/D conversion

20. SPDIF: waveform diagram for optical/coaxial digital audio signal

- 51 -

21. 27M clock signal waveform diagram

22. Reset circuit waveform diagram

URST#

Dv33

- 52 -

Section Five Function Introduction to IC

3.5.1 Function introduction to MT1389HD

1. Description

MT1389HD (U201) is a cost-effective DVD system-on-chip (SOC) which incorporates advanced features

like MPEG-4 video decoder, high quality TV encoder and state-of-art de-interlace processing.

Based on MediaTek’s world-leading DVD player SOC architecture, the MT1389E is the 3rd generation of the DVD player SOC. It integrates the MediaTek 2nd generation front-end analog RF amplifier and the Servo/MPEG AV decoder.

To enrich the feature of DVD player, the MT1389 equips a simplified MPEG -4 advanced simple profile (ASP) video decoder to fully support the DivX1 Home Theater profile. It makes the MT1389-based DVD player be capable of playback MPEG-4 content which become more and more popular.

The progressive scan of the MT1389HD utilized advanced motion-adaptive de-interlace algorithm to achieve the best movie/video playback. It also supports a 3:2 pull down algorithm to give the best film effect. The 108MHz/12-bit video DAC provides users a whole new viewing experience.

2. General Feature lists

(1)Integration DVD player single chip

High performance analog RF amplifier Servo controller and data channel processing MPEG-1/MPEG -2/JPEG video Dolby AC-3/DTS Decoder Unified memory architecture

Versatile video scaling & quality enhancement OSD & Sub-picture Built-in clock generator Built-in high quality TV encoder Built-in progressive video processor Audio effect post-processor Built-in 5.1-ch Audio DAC

- 53 -

(2)High Performance Analog RF Amplifier

Programmable fc Dual automatic laser power control Defect and blank detection RF level signal generator

(3)Speed Performance on Servo/Channel Decoding

DVD-ROM up to 4XS CD-ROM up to 24XS

(4)Channel Data Processor

Digital data slicer for small jitter capability Built-in high performance data PLL for channel data demodulation EFM/EFM+ data demodulation Enhanced channel data frame sync protection & DVD-ROM sector sync protection

(5)Servo Control and Spindle Motor Control

Programmable frequency error gain and phase error gain of spindle PLL to control spindle motor on CLV

and CAV mode

Built-in ADCs and DACs for digital servo control Provide 2 general PWM Tray control can be PWM output or digital output

(6)Embedded Micro controller

Built-in 8032 micro controller Built-in internal 373 and 8-bit programmable lower address port 1024-bytes on-chip RAM Up to 2M bytes FLASH-programming interface Supports 5/3.3-Volt. FLASH interface Supports power -down mode Supports additional serial port

(7)DVD-ROM/CD-ROM Decoding Logic

High-speed ECC logic capable of correcting one error per each P-codeword or Q-codeword Automatic sector Mode and Form detection Automatic sector Header verification Decoder Error Notification Interrupt that signals various decoder erro rs Provide error correction acceleration

(8)Buffer Memory Controller

Supports 16Mb/32Mb/64Mb SDRAM Supports 16-bit SDRAM data bus

- 54 -

Provides the self-refresh mode SDRAM Block-based sector addressing

(9)Video Decode

Decodes MPEG1 video and MPEG2 main level, main profile video (720/480 and 720x576)Decodes

MPEG-4 Advanced Simple Profile

Support DivX 3.11/4.x/5.x Home Theater Profile Support Nero -Digital Smooth digest view function with I, P and B picture decoding Baseline, extended -sequential and progressive JPEG image decoding Support CD-G titles

(10)Video/OSD/SPU/HLI Processor

Arbitrary ratio vertical/horizontal scaling of video, from 0.25X to 256X 65535/256/16/4/2-color bitmap format OSD, 256/16 color RLC format OSD Automatic scrolling of OSD image

(11)Audio Effect Processing

Dolby Digital (AC-3)/EX decoding DTS/DTS-ES decoding MPEG-1 layer 1/layer 2 audio decoding MPEG-2 layer1/layer2 2-channel audio High Definition Compatible Digital (HDCD) Windows Media Audio (WMA) Dolby ProLogic II Concurrent multi-channel and downmix out IEC 60958/61937 output PCM / bit stream / mute mode Custom IEC latency up to 2 frames Pink noise and white noise generator Karaoke functions Microphone echo Microphone tone control Vocal mute/vocal assistant Key shift up to +/- 8 keys Chorus/Flanger/Harmony/Reverb Channel equalizer 3D surround processing include virtual surround and speaker separation

- 55 -

(12)TV Encoder

Four 108MHz/12bit DACs Support NTSC, PAL-BDGHINM, PAL-60 Support 525p, 625p progressive TV format Automatically turn off unconnected channels Support PC monitor (VGA) Support Macrovision 7.1 L1, Macrovision 525P and 625P CGMS-A/WSS Closed Caption

(13)Progressive Scan Video

Automatic detect film or video source 3:2 pull down source detection Advanced Motion adaptive de-interlace Minimum external memory requirement

(14)Outline

216-pin LQFP package

3.3/1.8-Volt. Dual operating voltages

3. Pin Definitions

PIN Main Alt Type Description

RF interface (26)

231 RFGND18 Ground Analog ground

132 RFVDD 18 Power Analog power 1.8V 252 OSP Analog output RF Offset cancellation capacitor connecting

253 OSN Analog output RF Offset cancellation capacitor connecting

254 RFGC Analog output RF AGC loop capacitor connecting for DVD-ROM

255 IREF Analog input

256 AVDD3 Power Analog power 3.3V

1 AGND Ground Analog ground 2 DVDA Analog input AC couple input path A

Current reference input. It generates reference current for RF path. Connect an external 15K resistor to this pin and AVSS

3 DVDB Analog input AC couple input path B 4 DVDC Analog input AC couple input path C

5 DVDD Analog input AC couple input path D 6 DVDRFIP Analog input AC coupled DVD RF signal input RFIP

- 56 -

7 DVDRFIN Analog input AC coupled DVD RF signal input RFIN 8 MA Analog input DC coupled main beam RF signal input A

9 MB Analog input DC coupled main beam RF signal input B 10 MC Analog input DC coupled main beam RF signal input C

11 MD Analog input DC coupled main beam RF signal input D 12 SA Analog input DC coupled sub-beam RF signal output A

13 SB Analog input DC coupled sub-beam RF signal output B 14 SC Analog input DC coupled sub-beam RF signal output C

15 SD Analog input DC coupled sub-beam RF signal output D 16 CDFON Analog input CD focusing error negative input

17 CDFOP Analog input CD focusing error positive input 18 TNI Analog input 3 beam satellite PD signal negative input

19 TPI Analog input 3 beam satellite PD signal positive input

ALPC (4)

20 MIDI1 Analog input Laser power monitor input

21 MIDI2 Analog input Laser power monitor input 22 LDO2 Analog output Laser driver output

23 LDO1 Analog output Laser driver output

ADC Power ( 2 )

244 ADCVDD3 Power Analog 3.3V Power for ADC 245 ADCVSS Ground Analog ground for ADC

VPLL (3) 43 VPLLVSS Ground Analog ground for VPLL

44 CAPPAD Analog Inout VPLL External Capacitance connection 45 VPLLVDD3 Power Analog 3.3V Power for VPLL

Reference voltage (3)

28 V2REFO Analog output Reference voltage 2.8V

29 V20 Analog output Reference voltage 2.0V 30 VREFO Analog output Reference voltage 1.4V

Analog monitor output (7)

24 SVDD3 Power Analog power 3.3V

25 CSO RFOP Analog output

26 RFLVL RFON Analog output

- 57 -

1) Central servo

2) Positive main beam summing output

1) RFRP low pass, or

2) Negative main beam summing output

27 SGND Ground Analog ground

31 FEO Analog output Focus error monitor output 32 TEO Analog output Tracking error monitor output

33 TEZISLV Analog output TE slicing Level

Analog monitor output (6)

246 RFVDD3 Analog output Analog Power 247 RFRPDC Analog Input RF ripple detect output

248 RFRPAC Analog output RF ripple detect input(through AC-coupling) 249 HRFZC Analog output High frequency RF ripple zero crossing

250 CRTPLP Analog output Defect level filter capacitor connecting 251 RFGND Ground Analog Power

RF Data PLL Interface (9) 235 JITFO Analog output Output terminal of RF jitter meter

236 JITFN Analog Input Input terminal of RF jitter meter

237 PLLVSS Ground Ground pin for data PLL and related analog circuitry 238 IDACEXLP Analog output Data PL L DAC Low-pass filter

239 PLLVDD3 Power Power pin for data PLL and related analog circuitry 240 LPFON Analog Output Negative output of loop filter amplifier

241 LPFIP Analog input Positive input terminal of loop filter amplifier 242 LPFIN Analog input Negative input terminal of loop filter amplifier

243 LPFOP Analog output Positive output of loop filter amplifier

Motor and Actuator Driver Interface (10)

34 OP_OUT Analog output Op amp output 35 OP_INN Analog input Op amp negative input

36 OP_ INP Analog input Op amp positive input 37 DMO Analog output Disk motor control output. PWM output

38 FMO Analog output Feed motor control. PWM output

TROPENPW

Analog output Tray PWM output/Tray open output

40 PWMOUT1

41 TRO Analog output

ADIN0

Analog output

1) 1st General PWM output

2) AD input 0 Tracking servo output. PDM output of tracking servo compensator

- 58 -

42 FOO Analog output

Focus servo output. PDM output of focus servo compensator

93 142 160 174 213

81 178

96 118

LVTTL3.3 Input,

1) Monitor hall sensor input

ADIN1

Schmitt input, pull up,

2) AD input 1

(Digital pin)

GPIO

with analog input path

3) GPIO

for ADIN1

General Power/Ground (18)

DVDD18 Power 1.8V power pin for internal digital circuitry

DVSS Ground 1.8V ground pin for internal digital circuitry

131

DVDD3 Power 3.3V power pin for internal digital circuitry

145 156 170 208

DVSS Ground 3.3V ground pin for internal digital circuitry

148

Micro Controller and Flash Interface (48) 62 HIGHA0 InOut 4~16mA,SRPU Microcontroller address 8

74 HIGHA1 InOut 4~16mA,SRPU Microcontroller address 9 73 HIGHA2 InOut 4~16mA,SRPU Microcontroller address 10

72 HIGHA3 InOut 4~16mA,SRPU Microcontroller address 11

71 HIGHA4 InOut 4~16mA,SRPU Microcontroller address 12 70 HIGHA5 InOut 4~16mA,SRPU Microcontroller address 13

69 HIGHA6 InOut 4~16mA,SRPU Microcontroller address 14 68 HIGHA7 InOut 4~16mA,SRPU Microcontroller address 15

89 AD7 InOut 4~16mA,SRPU Microcontroller address/data 7

- 59 -

86 AD6 InOut 4~16mA,SRPU Microcontroller address/data 6 85 AD5 InOut 4~16mA,SRPU Microcontroller address/data 5

84 AD4 InOut 4~16mA,SRPU Microcontroller address/data 4 83 AD3 InOut 4~16mA,SRPU Microcontroller address/data 3

82 AD2 InOut 4~16mA,SRPU Microcontroller address/data 2 80 AD1 InOut 4~16mA,SRPU Microcontroller address/data 1

79 AD0 InOut 4~16mA,SRPU Microcontroller address/data 0 92 IOA 0 InOut 4~16mA,SRPU Microcontroller address

77 IOA 1 InOut 4~16mA,SRPU Microcontroller address 1/ IO 56 IOA 2 InOut 4~16mA,SRPU Microcontroller address 2/ IO

57 IOA 3 InOut 4~16mA,SRPU Microcontroller address 3/ IO 58 IOA 4 InOut 4~16mA,SRPU Microcontroller address 4/ IO

59 IOA 5 InOut 4~16mA,SRPU Microcontroller address 5/ IO 60 IOA 6 InOut 4~16mA,SRPU Microcontroller address 6/ IO

61 IOA 7 InOut 4~16mA,SRPU Microcontroller address 7/ IO

67 A16 InOut 4~16mA,SRPU Flash address 16 91 A17 InOut 4~16mA,SRPU Flash address 17

InOut 4~16mA,

63 A18

Flash address 18 /IO

SRPD,SMT

InOut 4~16mA,

64 A19

Flash address 19 /IO

SRPD,SMT

5) Flash address 20 /IO

75 A20

YUV0

InOut 4~16mA,

6) While External Flash size <= 1MB:

SRPD,SMT

I) Alternate digital video YUV output 0

YUV7

7) Flash address 21 /IO

InOut 4~16mA,

87 A21

GPIO

8) While External Flash size <= 2MB:

SRPD,SMT

I) Digital video YUV output 7 II) GPIO

InOut 4~16mA,

88 ALE

Microcontroller address latch enable

SRPD,SMT

InOut 4~16mA,

78 IOOE#

Flash output enable, active low / IO

SRPD,SMT

66 IOWR#

76 IOCS#

InOut 4~16mA,

Flash write enable, active low / IO

SRPD,SMT

InOut 4~16mA,

Flash chip select, active low / IO

SRPD,SMT

- 60 -

94 UWR#

InOut 4~16mA,

Microcontroller write strobe, active low

SRPD,SMT

95 URD#

97 UP1_2

98 UP1_3

99 UP1_4

100 UP1_5

101 UP1_6 SCL

102 UP1_7 SDA

103 UP3_0 RXD

InOut 4mA, SRPD,SMT

InOut 4~16mA,

SRPD,SMT InOut 4mA, SRPD,SMT InOut 4mA, SRPD,SMT InOut 4mA, SRPD,SMT InOut 4mA, SRPD,SMT InOut 4mA, SRPD,SMT InOut 4mA, SRPD,SMT

Microcontroller read strobe, active low

Microcontroller port 1-2

Microcontroller port 1-3

Microcontroller port 1-4

Microcontroller port 1-5

1) Microcontroller port 1-6

2) I2C clock pin

1) Microcontroller port 1-7

1) I2C data pin

1) Microcontroller port 3-0

2) 8032 RS232 RxD

InOut 4mA,

1) Microcontroller port 3-1

104 UP3_1 TXD

SRPD,SMT

2) 8032 RS232 TxD

1) Microcontroller port 3-4

105 UP3_4

RXD

SCL

InOut 4mA,

2) Hardwired RD232 RxD

SRPD,SMT

3) I2C clock pin

1) Microcontroller port 3-5

106 UP3_5

RXD SDA

InOut 4~16mA,

2) Hardwired RD232 TxD

SRPD,SMT

3) I2C data pin

109 IR Input SMT IR control signal input

InOut 4~16mA,

110 INT0#

Microcontroller external interrupt 0, active low

SRPD,SMT

Audio interface ( 28 )

1) Audio DAC master clock of SPDIF input

2) While SPDIF input is not used:

204 SPMCLK SCLK0 Inout

I) Serial interface port 0 clock pin II) GPIO

205 SPDATA SDIN0 Inout

1) Audio data of SPDIF input

2) While SPDIF input is not used:

- 61 -

I) Serial interface port 0 data-in II) GPIO

1) Audio left/right channel clock of SPDIF input

206 SPLRCK SDO0 Inout

SDCS0

207 SPBCK

ASDATA

Inout

InOut 4mA,

209 ALRCK

PD,SMT

InOut 4mA,

210 ABCK Fs64

SMT

InOut 4mA,

211 ACLK

SMT

2) While SPDIF input is not used: I) Serial interface port 0 data-out II) GPIO

1) Audio bit clock of SPDIF input

2) While SPDIF input is not used: I) Serial interface port 0 chip select II) Audio serial data 5 part I : DSD data sub-woofer Channel or Microphone output III) GPIO

1) Audio left/right channel clock

2) Trap value in power-on reset: I) 1: use external 373 II) 0: use internal 373

1) Audio bit clock

2) Phase de-modulation

Audio DAC master clock

1) Audio serial data 0 (Front-Left/Front-Right)

197 ASDATA0

202 ASDATA1

203 ASDATA2

InOut 4mA,

PD,SMT

InOut 4mA,

PD,SMT

InOut 4mA,

PD,SMT

2) DSD data left channel

3) Trap value in power-on reset: I) 1: manufactory test mode II) 0: normal operation

4) While using external channels: ) GPO_2

2) Audio serial data 0 (Front-Left/Front-Right)

2) DSD data right channel

3) Trap value in power-on reset: I) 1: manufactory test mode II) 0: normal operation

4) While using external channels: I) GPO_2

1) Audio serial data 1 (Left-Surround/Right-Surround)

2) DSD data left surround channel

3) Trap value in power-on reset: I) 1: manufactory test mode

- 62 -

II) 0: normal operation

4) While using external channels: I) GPO_1

1) Audio serial data 2 (Center/LFE)

2) DSD data right surround channel

212 ASDATA3

INT1#

214 ASDATA4

INT2#

215 MC_DATA

InOut 4mA,

3) Trap value in power-on reset: I) 1: manufactory test mode

PD,SMT

II) 0: normal operation

4) While only 2 channels output: I) GPO_0

1) Audio serial data 3 (Center-back/ Center-left-back/Center-right-back, in 6.1 or 7.1 mode)

InOut 4mA,

PD,SMT

2) DSD data center channel

18) While only 2 channels output: I) Digital video YUV output 6 II) GPIO

1) Microphone serial input

InOut 2mA,

PD,SMT

2) While not support Microphone: I) Microcontroller external interrupt 2 II) GPIO

Output

216 SPDIF

4~16mA,

S/PDIF output

SR: ON/OFF 217 APLLVDD3 Power 3.3V Power pin for audio clock circuitry

218 APLLCAP Analog inout APLL External Capacitance connection 219 APLLVSS Ground Ground pin for audio clock circuitry

220 ADACVSS2 Ground Ground pin for AUDIO DAC circuitry 221 ADACVSS1 Ground Ground pin for AUDIO DAC circuitry

1) AUDIO DAC Sub-woofer channel output

222 ARF Output

2) While internal AUDIO DAC not used: GPIO

1) AUDIO DAC Right Surround channel output

2) While internal AUDIO DAC not used:

223 ARS GPIO Output

a. SDATA3 b. GPIO

1) AUDIO DAC Right channel output

224 AR GPIO Output

2) While internal AUDIO DAC not used:

- 63 -

a. SDATA1

b. GPIO

225 AVCM Analog AUDIO DAC reference voltage

1) AUDIO DAC Left Surround channel output

226 AL GPIO Output

2) While internal AUDIO DAC not used: a. SDATA2 b. GPIO

1) AUDIO DAC Left Surround channel output

2) While internal AUDIO DAC not used:

227 ALS GPIO Output

a.SDATA0 b. GPIO

1) AUDIO DAC Center channel output

228 ALF GPIO Output

2) While internal AUDIO DAC not used: GPIO 229 ADACVDD1 Power 3.3V power pin for AUDIO DAC circuitry 230 ADACVDD2 Power 3.3V power pin for AUDIO DAC circuitry

Video Interface ( 18 ) 196 DACVDDC Power 3.3V power pin for VIDEO DAC circuitry

195 VREF Analog Bandgap reference voltage 194 FS Analog Full scale adjustment

Output

1) Video data output bit 0

193 YUV0 CIN

4MA, SR

2) Compensation capacitor

192 DACVSSC Ground Ground pin for VIDEO DAC circuitry

Output

1) Video data output bit 1

191 YUV1 Y

4MA, SR

2) Analog Y output

190 DACVDDB Power 3.3V power pin for VIDEO DAC circuitry

Output

1) Video data output bit 2

189 YUV2 C

4MA, SR

2) Analog chroma output

188 DACVSSB Ground Ground pin for VIDEO DAC circuitry

Output

1) Video data output bit 3

187 YUV3 CVBS

4MA, SR

2) Analog composite output

186 DACVDDA Power 3.3V power pin for VIDEO DAC circuitry

Output

1) Video data output bit 4

185 YUV4 Y/G

4MA, SR

2) Green or Y

184 DACVSSA Ground Ground pin for VIDEO DAC circuitry

Output

1) Video data output bit 5

183 YUV 5 B/Cb/Pb

4MA, SR

- 64 -

2) Blue or CB

182 YUV 6 R/Cr/Pr

Output

4MA, SR

1) Video data output bit 6

2) Red or CR

1) Vertical sync input/output

181 VSYN V_ADIN1

INT3#

180 YUV 7

ASDATA

INT4#

179 HSYN

V_ADIN2

Output

4MA, SR

Output

4MA, SR

Output

4MA, SR

2) While no External TV-encoder: I) Vertical sync for video-input II) Version AD input port 1 III) GPIO

1) Video data output bit 7

2) While no External TV-encoder: I) Microcontroller external interrupt 3 II) Audio serial data 5 part II : DSD data sub-woofer channel or Microphone output III) GPIO

1) Horizontal sync input/output

2) While no External TV-encoder: I) Horizontal sync for video-input II) Version AD input port 2 III) GPIO IV) Microcontroller external interrupt 4

Video Interface (12)

160 DACVDDC Power 3.3V power pin for video DAC circuitry 161 VREF Analog Bandgap reference voltage

162 FS Analog Full scale adjustment 163 DACVSSC Ground Ground pin for video DAC circuitry

InOut 4mA,

164 CVBS

Analog composite output

SR 165 DACVDDB Power 3.3V power pin for video DAC circuitry 166 DACVSSB Ground Ground pin for video DAC circuitry

167 DACVDDA Power 3.3V power pin for video DAC circuitry

InOut 4mA,

Green, Y, SY, or CVBS

168 Y/G

SR 169 DACVSSA Ground Ground pin for video DAC circuitry

InOut 4mA,

170 B/CB/PB

Blue, CB/PB, or SC

SR 171 R/CR/PR InOut 4mA, Red, CR/PR, CVBS, or SY

- 65 -

MISC (12)

108 PRST#

Power on reset input, active low

PD,SMT 107 ICE InOut PD,SMT Microcontroller ICE mode enable 233 XTALO Output 27MHz crystal output

234 XTALI Input 27MHz crystal input

46 USB_VSS USB Ground USB ground pin

47 USBP Analog Inout USB port DPLUS analog pin 48 USBM Analog Inout USB port DMINUS analog pin

49 USB_VDD3 Analog Inout USB Power pin 3.3V 201 GPIO3 InOut Pull-Down GPIO

200 GPIO4 InOut Pull-Down GPIO 199 RCLKB GPIO5 InOut Pull-Down GPIO

198 RVREF GPIO6 InOut Pull-Down GPIO

Dram Interface (58) (Sorted by position)

InOut

176 C_0

IO_0(RD1

InOut Non-pull

1) Digital Video output C bit 0

2) GPIO

175 C_1

IO_1(RD1

IO_2(RD1

173 C_2

IO_3(RD1

172 C_3

IO_4(RD2

171 C_4

IO_5(RD2

169 C_5

IO_6(RD2

168 C_6

IO_7(RD2

167 C_7

177 IO_17 (DQM2)

IO_8(DQ

166 YUVCLK

M3)

InOut Non-pull

1) Digital Video output C bit 1

2) GPIO

1) Digital Video output C bit 2

InOut Non-pull

2) GPIO

1) Digital Video output C bit 3

InOut Non-pull

2) GPIO

1) Digital Video output C bit 4

InOut Non-pull

2) GPIO

1) Digital Video output C bit 5

InOut Non-pull

2) GPIO

1) Digital Video output C bit 6

InOut Non-pull

2) GPIO

1) Digital Video output C bit 7

InOut Non-pull

2) GPIO

InOut Pull- Up GPIO

1) Digital Video output Clock

InOut Pull- Up

2) GPIO

- 66 -

165 Y_0

IO_9(RD2

InOut Non-pull

1) Digital Video output Y bit 0

2) GPIO

164 Y_1

163 Y_2

162 Y_3

161 Y_4

159 Y_5

158 Y_6

157 Y_7

IO_10(RD

InOut Non-pull

25)

IO_11(RD

InOut Non-pull

26)

IO_12(RD

InOut Non-pull

27)

IO_13(RD

InOut Non-pull

28)

IO_14(RD

InOut Non-pull

29)

IO_15(RD

InOut Non-pull

30)

IO_16(RD

InOut Non-pull

31)

1) Digital Video output Y bit 1

2) GPIO

1) Digital Video output Y bit 2

2) GPIO

1) Digital Video output Y bit 3

2) GPIO

1) Digital Video output Y bit 4

2) GPIO

1) Digital Video output Y bit 5

2) GPIO

1) Digital Video output Y bit 6

2) GPIO

1) Digital Video output Y bit 7

2) GPIO 155 RA 4 InOut DRAM address 4

154 RA 5 InOut DRAM address 5 153 RA 6 InOut DRAM address 6

152 RA 7 InOut DRAM address 7 151 RA 8 InOut DRAM address 8

150 RA 9 InOut DRAM address 9 149 RA11 InOut DRAM address bit 11

147 CKE InOut Pull-Down DRAM clock enable 146 RCLK InOut Dram clock

144 RA 3 InOut DRAM address 3 143 RA 2 InOut DRAM address 2

141 RA 1 InOut DRAM address 1 140 RA 0 InOut DRAM address 0

139 RA10 InOut DRAM address 10

138 BA1 InOut DRAM bank address 1 137 BA0 InOut DRAM bank address 0

136 RCS# output DRAM chip select, active low 135 RAS# output DRAM row address strobe, active low

134 CAS# output DRAM column address strobe, active low

- 67 -

133 RWE# output DRAM Write enable, active low 132 DQM1 InOut Data mask 1

130 IO_18 (DQS1) InOut Non-pull GIPIO 129 RD8 InOut DRAM data 8

128 RD9 InOut DRAM data 9 127 RD10 InOut DRAM data 10

126 RD11 InOut DRAM data 11 125 RD12 InOut DRAM data 12

124 RD13 InOut DRAM data 13 123 RD14 InOut DRAM data 14

125 RD15 InOut DRAM data 15 121 RD0 InOut DRAM data 0

120 RD1 InOut DRAM data 1 119 RD2 InOut DRAM data 2

117 RD3 InOut DRAM data 3

116 RD4 InOut DRAM data 4 115 RD5 InOut DRAM data 5

114 RD6 InOut DRAM data 6 113 RD7 InOut DRAM data 7

112 IO_19 (DQS0) InOut GPIO 111 DQM0 InOut Non-pull Data mask 0

JTAG Interface( 4 )

1) Serial interface port 3 data-out

51 TDI V_ADIN4

52 TMS V_ADIN5

53 TCK V_ADIN6

InOut Non-pull

2) Version AD input port 4

3) GPIO

1) Serial interface port 3 data-out

2) Version AD input port 5

3) GPIO

1) Serial interface port 3 data-out

2) Version AD input port 6

3) GPIO

1) Serial interface port 3 data-out

54 TDO V_ADIN7

InOut Non-pull

2) Version AD input port 7

3) GPIO

- 68 -

3.5.2 function introduction to AT24C02

1. Description

The AT24C02 (U202) provides 2048 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 256 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The AT24C02 is available in space-saving 8-lead PDIP,

8-lead MAP, 8 lead TSSOP and 8-ball dBGA2 packages and is accessed via a 2-wire serial interface. In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V) versions

2. Features

◆ Low-voltage and Standard-voltage Operation – 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 5.5V)

◆ Internally Organized, 256 x 8 (2K),

◆ 2-wire Serial Interface

◆ Schmitt Trigger, Filtered Inputs for Noise Suppression

◆ Bi-directional Data Transfer Protocol

◆ 100 kHz (1.8V) and 400 kHz (2.5V, 2.7V, 5V) Compatibility

◆ Write Protect Pin for Hardware Data Protection

◆ 8-byte Page (1K, 2K), Write Modes

◆ Partial Page Writes are Allowed

◆ Self-timed Write Cycle (5 ms max)

◆ High-reliability

◆ – Endurance: 1 Million Write Cycles

◆ – Data Retention: 100 Years

◆ Automotive Grade, Extended Temperature and Lead-Free Devices Available

◆ 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 5-lead SOT23,

◆　 8-lead TSSOP and 8-ball dBGA2™ Packages

3. PIN Description

PIN No. Symbol I/O Description

1 A0 I To Ground

2 A1 I To Ground 3 A2 I To Ground

4 VSS I To Ground 5 SDA I/O Serial Data input

- 69 -

6 SCL I/O Serial SCL input 7 TEST I/O Test port

8 VDD I Positive Power Supply

3.5.3 function introduction to CS5340

1. DESCRIPTION

The CS5340 (U203) is complete analog-to-digital converter for digital audio systems. It performs sampling, analog-to-digital conversion and anti-alias iltering, generating 24-bit values for both left and right inputs in serial form at sample rates up to 200 kHz per channel.

The CS5340 uses a 5th-order,multi-bit delta-sigma modulator followed by digital filtering and decimation, which removes the need for an external anti-alias filter.

The CS5340 is ideal for audio systems requiring wide dynamic range, negligible distortion and low noise, such as set -top boxes, DVD-karaoke players, DVD recorders, A/V receivers, and automotive applications.

2. FEATURES

Advanced multi-bit Delta-Sigma architecture

24-bit conversion.

Supports all audio sample rates including 192kHz.

101dB Dynamic Range at 5V.

-94 dB THD+N.

High pass filter to remove DC offsets.

Analog/digital core supplies from 3.3V to 5V..

Linear phase digital anti-alias filtering.

Auto-mode selection.

Pin compatible with the cs5341

3. PIN DESCRIPTION

PIN No. Symbol I/O Description

1 M0 I Mode selection 0 2 MCLK I Master clock 3 VL I Logic power 4 SDOUT O Serial audio data output 5 GND I GND 6 VD I Digital power 7 SCLK I Serial clock

- 70 -

8 LRCK I Left right clock 9 /RST I Reset

10 AINL I Analog input L

11 VQ O Quiescent voltage 12 AINR I Analog input R 13 VA I Analog power 14 REF_GND I GND 15 FILT+ I Positive voltage reference 16 M1 I Mode selection 1

3.5.4 function introduction to 74HCU04

1. Description

The 74HCU04 (U205) is a high-speed Si-gate CMOS device and is pin compatible with low power

Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard no. 7A.

The 74HCU04 is a general purpose hex inverter. Each of the six inverters is a single stage

2. Features

◆ Output capability: Standard

◆　 ICC category: SSI

3. PIN CONFIGURATION

PIN NO. SYMBOL I/O Description 1, 3, 5, 9, 11, 13 2, 4, 6, 8, 10, 12

7 GND ground (0 V)

14 VCC positive supply voltage

1A to 6A I data inputs 1Y to 6Y O data outputs

3.5.5 Function introduction to FLASH

1. DESCRIPTION

FLASH (U207) is a 16Mbit FLASH memorizer, and the damage of U214 may cause troubles, such as

power not on, no disc reading and power on picture mosaic.

2. PIN DESCRIPTION

Pin Name Function Voltage (when no disc) Data direction

- 71 -

1-9、16-25、48

11 WE Write enable signal, low level is effective 3.23V I

12 RESET Reset, low level is effective 3.23V I

AO-A19 20 bit address bus 　 I

10、13、14

15 RY/BY Ready/system busy 3.23V O

26 CE Chip enable, low level effective 0V I

27、46

28 OE Output enable signal , low level is effective 0V I

29-3、6、38 -44

37 VCC 5V power supply +5V 　

45 DQ15/A-1

47 BYTE

NC Blank pin 　　

VSS Ground 　　

DQ0-DQ14

Take word extend mode as data line, and bit extend

Select 8-bit or 16-bit output mode. High level is 16-bit

output and low level is 8-bit output

15 bit data bus 　 O

mode as address line

3.5.6 Function introduction to SDRAM

1. DESCRIPTION

　 I/O

64M 16 -bit memorizer SDRAM (U208) with the player and the working clock frequency is 166/143MHZ. The func tion of 16SDRAM in DVD players is to memorizer the program of AML3298 taken out from FLASH and information of image and sound taken out from disc to form buffer, add the stability of information output and add anti-shaking effect of player.

2. PIN DESCRI PTION

Pin Name

1 VDD 3.3V power supply 　 28 VSS Ground 　

2 DQ0 Data bus I/O 29 MA4 Address bus I

3 VDDQ

4 DQ1 Data bus I/O 31 MA6 Address bus I

5 DQ2 Data bus I/O 32 MA7 Address bus I

6 VSSQ

7 DQ3 Data bus I/O 34 MA9 Address bus I

8 DQ4 Data bus I/O 35 MA11 Address bus I

Function Signal flow Pin Name Function Signal flow

3.3V power supply I/O 30 MA5 Address bus I

Ground 　 33 MA8 Address bus I

- 72 -

9 VDDQ

3.3V power supply 　 36 NC Blank 　

11 DQ6 Data bus I/O 38 CLK System clock input I

12 VSSQ

14 VDD 3.3V power supply 　 41 VSS Ground 　

15 LDQM

17 CAS Line address gating signal I 44 DQ9 Data bus I/O

18 RAS Row address gating signal I 45 DQ10

20 SD -BS0 Segmanr address 0 gating signal

21 SD -BS1 Segmanr address 1 gating signal

DQ5 Data bus I/O 37 CKE Clock enable signal I

Ground 　 39 UDQM

DQ7 Data bus I/O 40 NC Blank 　

Data input/output screen-shielded

I 42 DQ8 Data bus I/O

signal

WE Write control signal I 43 VDDQ

CS Chip selection signal I 46 VSSQ

I 47 DQ11 Data bus I/O

I 48 DQ12

Data input/output

screen-shielded signal

3.3V power supply 　

Data bus I/O

Ground 　

Data bus I/O

22 MA10

23 MA0 Address bus I 50 DQ13

24 MA1 Address bus I 51 DQ14

25 MA2 Address bus I 52 VSSQ

26 MA3 Address bus I 53 DQ15

27 VDD 3.3V power supply 　 54 VSS Ground 　

Address bus I 49 VDDQ

3.3V power supply 　

Data bus I/O

Ground 　

Data bus I/O

3.5.7 function introduction to 4580

1. Description

NJM4580 (U209, U210, U211) is the dual operational amplifier, specially designed for improving the

tone control, which is most suitable for the audio application.

Featuring noiseless, higher gain bandwidth, high output current and low distortion ratio, and it is most suitable not only for acoustic electronic parts of audio pre-amp and active filter, but also for the industrial measurement tools. It is also suitable for the head phone amp at higher output current, and further more, it can be applied for the handy type set operational amplifier of general purpose in application of low voltage single supply type which is properly biased of the low voltage source.

- 73 -

2. FEATURES

◆ Operating Voltage ( ±2V~±18V )

◆ Low Input Noise Voltage ( 0.8µVrms typ. )

◆ Wide Gain Bandwidth Product ( 15MHz typ. )

◆ Low Distortion ( 0.0005% typ. )

◆ Slew Rate ( 5V/µs typ. )

◆ Package Outline DIP8,SIP8,EMP8,SSOP8,DMP8

◆　 Bipolar Technology

3. PIN Description

PIN No Symbol I/O

1 1OUT O

2 1IN– I 3 1IN+ I

4 VCC– I 5 2IN+ I

6 2IN– I 7 2OUT O

8 VCC+ I

Output 1

Inverting Input Pin 1 Non-Inverting Input Pin 1

Negative Power Supply Non-Inverting Input Pin 2

Inverting Input Pin 2 Output 2

Positive Power Supply

Description

3.5.8 function introduction to D5954

1. DESCRIPTION

D5954 (U302) is a servo drive IC with built-in 4-channel drive circuit. Digital focus, trace, feed and main axis drive signal outputted by MT1389E is sent to D5954 for amplifying through RC integration circuit. The focus, trace, feed and main axis drive signal being amplified by D5954 is sent to loader to fulfill the corresponding servo work.

2. PIN DESCRIPTION

PIN Symbol I/O Description

1 VINFC I Focus control signal input 2 CF1 I External feedback loop 3 CF2 I External feedback loop 4 VINSL+ I Forward control input, connected to reference voltage 5 VINSL- I Main axis control signal input

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6 VOSL O External feedback resistor 7 VINFFC I Focus feedback signal input 8 VCC I 5V power supply 9 PVCC1 I 5V power supply

10 PGND I Ground

11 VOSL- O Main axis drive reverse voltage output 12 VO2+ O Main axis drive forward direction voltage output 13 VOFC- O Focus drive reverse voltage output 14 VOSC+ O Focus drive forward voltage output 15 VOTK+ O Trace drive forward direction voltage output 16 VOTK- O Trace drive reverse voltage output 17 VOLD+ O Feed drive forward direction voltage output 18 VOLD- O Feed drive reverse voltage output 19 PGND I Ground 20 VINFTK I Trace feedback signal input 21 PVCC2 I 5V power supply 22 PREGND I Ground 23 VINLD I Feed control signal input 24 CTK2 I External feedback loop 25 CTK1 I External feedback loop 26 VINTK I Trace control signal input 27 BIAS I 1.4V reference voltage input 28 STBY I Enable control signal

3.5.9 function introduction to PT6961

1. DESCRIPTION PT6961 (U401) is an LED Controller driven on a 1/7 to 1/8 duty factor. Eleven segment output lines, six

grid output lines, 1 segment/grid output lines, one display memory, control circuit, key scan circuit are all incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer. Serial data is fed to PT6961 via a four-line serial interface. Housed in a 32-pin SO Package, PT6961 pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.

2. FEATURES

◆ CMOS Technology

◆ Low Power Consumption

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◆ Multiple Display Modes (12 segment, 6 Grid to 11 segment, 7 Grid)

◆ Key Scanning (10 x 3 Matrix)

◆ 8-Step Dimming Circuitry

◆ Serial Interface for Clock, Data Input, Data Output, Strobe Pins

◆ Available in 32-pin, SOP Package

3. PIN DESCRIPTION

PIN Symbol I/O Description

1 OSC I Oscillator Input P in

2 DOUT O Data output

3 DIN I Data input 4 CLK I Clock input

5 STB I Serial interface strobe 6 K1 I Key data input

7 K2 I Key data input 8 K3 I Key data input

9 VDD I Power supply 10 SG1/KS1 O Segment output

11 SG2/KS2 O Segment output 12 SG3/KS3 O Segment output

13 NC 14 SG4/KS4 O Segment output

15 SG5/KS5 O Segment output 16 SG6/KS6 O Segment output

17 SG7/KS7 O Segment output

18 SG8/KS8 O Segment output 19 SG9/KS9 O Segment output

20 SG10/KS10 O Segment output 21 SG11 O Segment output

22 SG12/GR7 O Segment output 23 GR6 O Grid output

24 GR5 O Grid output 25 VDD I Power input

26 GND I Ground

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27 GR4 O Grid output 28 GR3 O Grid output

29 GND I Ground 30 GR2 O Grid output

31 GR1 O Grid output 32 GND I Ground

3.5.10 function introduction to VIPer22ADIP

1. DESCRIPTION

The VIPer22A (U501) combines a dedicated current mode PWM controller with a high voltage Power MOSFET on the same silicon chip. Typical applications cover off line power supplies for battery charger adapters, standby power supplies for TV or monitors, auxiliary supplies for motor control, etc. The internal control circuit offers the following benefits:

Large input voltage range on the VDD pin accommodates changes in auxiliary supply voltage. This feature is well adapted to battery charger adapter configurations.

Automatic burst mode in low load condition.

Over voltage protection in hiccup mode.

2. FEATURES

◆ FIXED 60 KHZ SWITCHING FREQUENCY

◆ 9V TO 38V WIDE RANGE VDD VOLTAGE

◆ CURRENT MODE CONTROL

◆ AUXILIARY UNDERVOLTAGE LOCKOUT WITH HYSTERESIS

◆ HIGH VOLTAGE START UP CURRENT SOURCE

◆　 OVERTEMPERATURE, OVERCURRENT AND OVERVOLTAGE PROTECTION WITH

AUTORESTART

3. PIN DESCRIPTION

PIN Symbol I/O Description

1 SOURCE O Power MOSFET source and circuit ground reference. 2 SOURCE O Power MOSFET source and circuit ground reference.

3 FB I Feedback input. 4 VDD I Power supply of the control circuits.

5 DRAIN I Power MOSFET drain.

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6 DRAIN I Power MOSFET drain.

Ｒ

7 DRAIN I Power MOSFET drain.

8 DRAIN I Power MOSFET drain.

3.5.11 Function introduction to PH817

PH817 (U502) is a photoelectric coupler, shown as the figure 3.5. 11.1. The right side is a light emitting diode, which sends out light of different intensity according to the strength of voltage inputted from the right side, generates photocurrent of different intensity on the left side according to light of different intensity, and outputs from position D. The higher of the voltage inputted from the right side, the stronger of the light emitted from light emitting diode and the larger of the photocurrent produced from position D. The lower of the voltage inputted from the right side of photoelectric coupler, the weaker of the light emitted from light emitting diode and the weaker of the current outputted from position D.

Figure 3.5.11.1 PH817 outside drawing

3.5.12 Function introduction to LM431A

LM431A (U503) is a 2.5V comparator, shown as the figure 3.5.12.1. Compared the inputted voltage of R end with 2.5V, when voltage of R end is more than 2.5V, KA end is on and photoelectric coupler starts to send out photocurrent; when voltage of R end is less than 2.5V, KA end is cutoff and photoelectric coupler does not send out photocurrent. CPU+3.3V in power board circuit must be kept in 3.3V, for the function of comparator. No

matter more than or less than 3.3V, through on and off status of comparator, it will control the on state of the output end of photoelectric coupler LM431A to adjust the output space occupation ratio of switch module to control the output voltage of transformer and masthead the power.

Ｋ

Ａ

Figure 3.5.12.1 LM431A outside drawing

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3.5.13 Function introduction to 4558

1. Description

The RC4558 and RM4558 devices (U601) are dual general-purpose operational amplifiers with each half electrically similar to the A741 except that offset null capability is not provided.

The high common -mode input voltage range and the absence of latch-up make these amplifiers ideal for voltage-follower applications. The devices are short-circuit protected and the internal frequency compensation ensures stability without external components.

The RC4558 is characterized for operation from 0 C to 70 C, and the RM4558 is characterized for operation over the full military temperature range of –55 C to 125 C.

2. FEATURES

◆ Continuous-Short-Circuit Protection

◆ Wide Common-Mode and Differential

◆ Voltage Ranges

◆ No Frequency Compensation Required

◆ Low Power Consumption

◆ No Latch-Up

◆ Unity-Gain Bandwidth ,3 MHz Typ

◆ Gain and Phase Match Between Amplifiers

◆ Low Noise ,8 nV?Hz Typ at 1 kHz

◆ Designed To Be Interchangeable With

◆　 Raytheon RC4558 and RM4558 Devices

3. PIN CONFIGURATION

PIN No Symbol I/O

1 1OUT O 2 1IN– I

3 1IN+ I PIN No. Symbol I/O

PIN No. Symbol I/O

4 VCC– I

Description

Output 1 Inverting Input Pin 1

Non-Inverting Input Pin 1 Description

Description

Negative Power Supply

5 2IN+ I

6 2IN– I

7 2OUT O

8 VCC+ I

Non-Inverting Input Pin 2

Inverting Input Pin 2 Output 2

Positive Power Supply

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3.5.14 Function introduction to TDA1308

1. DESCRIPTION

The TDA1308 (U603) is an integrated class AB stereo headphone driver contained in an SO8, DIP8 or a TSSOP8 plastic package. The device is fabricated in a 1 mmCMOS process and has been primarily developed for portable digital audio applications.

The difference between the TDA1308 and the TDA1308A is that the TDA1308A can be used at low supply voltages.

2. FEATURES

◆ Wide temperature range

?◆ No switch ON/OFF clicks

?◆ Excellent power supply ripple rejection

?◆ Low power consumption

◆ Short-circuit resistant

?◆ High performance

◆ – high signal-to-noise ratio

◆ – high slew rate

◆ – low distortion

?◆ Large output voltage swing.

3. PIN DESCRIPTION

PIN Symbol I/O Description

1 OUTA O output A

2 INA(neg) I inverting input A 3 INA(pos) I non-inverting input A

4 VSS I negative supply

PIN Symbol I/O Description

5 INB(pos) I non-inverting input B 6 INB(neg) I inverting input B

7 OUTB O output B

8 VDD I positive supply

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3.5.15 Function introduction to MT1392E

1. Description

MediaTek MT1392E (U701) is a multi-resolution HDMI transmit processor, which incorporates video scaler, high definition TV encoder, audio sampling rate converter, audio packer, HDCP processor and HDMI transmItter. This IC can accept digital video in various definition, including standard-definition video such as 480i, 576i, 480p, 576p, and high-definition video such as 720p (50/59.94Hz), 1080i(5059.94Hz), and converts the standard definition video into high-definition ones. MT1392 can support up to 8 channel I2S or SPDIF. It is also fully compatible with DVI 1.0, HDMI 1.0 and HDCP 1.1.

2. Features

◆ High Definition Video Process Support 480i, 576i, 480p, 576p digital video input According to CCIR656 or CCIR601 spec. Support 720p (50/59.94Hz), 1080i??(50/59.94Hz) digital video input According to SMPTE-293M spec. Programmable scaler converts standard-definition video to 720p, 1080i high-definition video. TV encoder support 480p, 576p, 720p, 1080i (50 and 59.94Hz) component analog output including RGB

and YCbCr.

◆ Audio Input Formats Support Industry-standard S/PDIF for digital audio using IEC 6095 8 2-channel PCM, and compressed

(encoded) audio data (DTS, AC3, MPEG Audio) using IEC 61937??format.

Support I2S audio interface up to 4 channels. Sampling rate conversion for stereo I2S audio

◆ HDMI & HDCP Fully backward Compatible with DVI, and compliant with HDMI 1.0, DVI1.0, EIA/CEA-861B, HDCP 1.1. Integrate High-Bandwidth Content Protection (HDCP 1.1) for both video and audio.

Optional I2C master interface for HDCP key set loading.

◆ Serial Interface I2C slave programming interface.

◆ Outline 80-pin LQFP package

3.3/1.8-Volt. Dual operating voltages

3. PIN Description

PIN Symbol I/O Description

1 DVSS GND Digital ground

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Normal : Digital chrom a input

2-9

C0-C7

I,PD

VDAC test DAC test mode [0:7] input.

BIST mode : BIST data input

10 DVDD33 VDD Digital power, 3.3V

11 VCK I Clock of digital video input

12 DVSS GND Digital ground

13-20

Y0-Y7

I, PD

Normal : Digital luma input

VDAC test : DAC test data [0:7] input.

BIST mode : BIST address input

21 SSCK I Normal : Slave serial interface clock input

SCAN mode : scan reset active low 22 SSD IO Slave serial interface data input output 23 DVDD18 VDD Power of digital core, 1.8V 24 PWDN# I, PD Power down, activ e low 25 RST# I, PD Reset, active low. 26 XTAL I Normal : clock input

VDAC test : VDAC test clock input 27 INT O Interrupt output 28 DVSS GND Digital ground

A7/GPO0

A6/GPO1

TRAP2/GPO2

TRAP1/GPO3

IO,PD IO,PD

IO,PD

Power ON : Serial interface address 7

BIST mode : SRAM fail output

Normal : General purpose output

Power ON : Serial interface address 6

BIST mode : SRAM fail output Normal : General purpose output Power ON : Hardware trap Bit 2

BIST mode : SRAM fail output

Normal : General purpose output

Power ON : Hardware trap bit BIST mode : SRAM fail output

Normal : General purpose output

Power ON : Hardware trap Bit

TRAP0/GPO4

O,PD

BIST mode : SRAM fail output Normal : General purpose output

MasterI2C on : Master serial interface clock output

- 82 -

34 MSCK/GPO5 O BIST mode : SRAM fail output

Normal : General purpose output

MSD/GPO6

IO,PU

MasterI2C on : Master serial interface data input output

BIST mode : SRAM fail output Normal : General purpose output

36 GPO7 IO,PD Power ON : EPROM word-address type 1 : 16bit , 0 : 8bit

BIST mode : SRAM fail output

Normal : General purpose output

GPIO8

BIST mode : SRAM fail Output

Normal : General purpose output / HDMI test Input /

down mixed audio input

GPIO9

BIST mode : SRAM fail output

Normal : General purpose output / V - sync in out HDMI test Input

VDAC test : PLL test Enable

GPIO10

BIST mode SRAM fail output

Normal : General purpose output H-sync in out / HDMI test input

VDAC test : PLL test calibration

40 HTPLG I,PD HDMI Hot-Plug detection 41 AVSS GND Analog ground 42 PLLC0 A PLL Capacitor ground 43 PLLC1 A PLL Capacitor 44 AVDD VDD Analog power, 3.3V 45 AVDD VDD Analog power, 3.3V 46 AVSS GND Analog Ground 47 AVSS GND Analog Ground 48 TCK- AO HDMI Tx clock 49 TCK+ AO HDMI Tx clock 50 AVDD VDD Analog power, 3.3V 51 TX0- AO HDMI Tx channel 0 52 TX0+ AO HDMI Tx channel 0 53 AVSS GND Analog Ground 54 TX1- AO HDMI Tx channel 1 55 TX1+ AO HDMI Tx channel 1 56 AVDD VDD Analog power 3.3V 57 TX2- AO HDMI Tx channel 2 58 TX2+ AO HDMI Tx channel 2

- 83 -

59 AVSS GND Analog Ground 60 SWING AI HDMI output swing adjustment 61 AVDD VDD Power of DAC, 3.3V 62 VREF A Voltage reference of DAC 63 FS A DAC full scale adjustment 64 AVSS GND Ground of DAC 65 AVDD VDD Power of DAC, 3.3V 66 AVSS GND Ground of DAC 67 AVDD VDD Power of DAC, 3.3V 68 G AO Component analog video output Y/Green 69 AVSS GND Ground of DAC 70 B AO Component analog video output Cb/Blue 71 R AO Component analog video output Cr/Red

73 AD3 I Normal : I2S data of channel 6/7

77 ACK I Normal : S/PDIF clock

SPDIF

AD2

AD1

AD0

Normal : S/PDIF audio input SCAN mode : test _se input

VDAC test : VDAC test reset, active low

BIST mode : BIST reset, active low.

VDAC test VDAC test data bit 11 input

Normal : I2S data of channel 4/5

VDAC test : VDAC test data bit 10 input

BIST mode : BIST reset active low

Normal: I2S data of channel 2/3

VDAC test VDAC test Data bit 9 input

BIST mode : BIST verify pulse

Normal : I2S data of channel 0/1

VDAC test : VDAC test data bit 8 input

BIST mode : BIST write pulse

VDAC test : VDAC test reset, active high. 78 ABCK I I2S bit clock 79 ALRCK I I2S Left/Right channel flag 80 DVDD18 VDD Power of digital core 1.8V

- 84 -

Chapter Four

Disassembly and Assembly Process

DVD players manufactured in BBK are largely identical but with minor differences and are mainly

composed of loader components, control panel components, decode and servo board components,

power board components, power amplifier board components, MIC board components and AV board

components. In order to speed up the compilation of “Service Manual”, we shall not give repeat

explanation to model with minor differences in chapter four “Disassembly and Assembly Process” for the

later compiled service manuals. For disassembly and assembly process in this chapter, please refer to

chapter 4 of “DK1005S Service Manual” or “DK1020S Service” .

The pictures of this model are shown as follows:

- 85 -

Chapter Cinque

PCB board & Circuit diagram

Section One PCB board

5.1.1 Surface layer of KEY SCAN Board

VD404

VD402

TC402

U402 LED401

TC401

- 86 -

VD406

K405

4DV985-1 LEI

DVD 2006/03/22

K403

VD403

K402

5.1.2 Bottom layer of KEY SCAN Board

R408

C401

C403 XS401

D409

D410

D411

C402 R403

R404

D406

R402

R407

R410

Q402

XS402

R409

D413

R411

D414

R405

L401

R401

R420

U401

C408

D407

D408D412

D402

D401

D405

D404

R412 R415

D403Q404

- 87 -

5.1.3 Surface layer of DECODE&SERVO Board

- 88 -

5.1.4 Bottom layer of DECODE&SERVO Board

- 89 -

5.1.5 Surface layer of HDMI Board

XS704

R703 R704

R705

GND

LEI

TDV985-1

GND

R724

C746

R723

U701

DVD 2006/07/06

U703

XS703

U704

R749

JK708

R745

R744 R756

R754

C752

R742

R731

L724L716

L717 L721AC749 L715

R730

C736

XS701

TC702

C751 L719

TC701

L718

R701

R702

R757

V18

GND

VCC

GND

R726

R718

R743

DV33

- 90 -

5.1.6 Bottom layer of HDMI Board

C743

C742

C740

C739

C747

C753

C737 C738

C745

C744

C750

- 91 -

5.1.7 Surface layer of MIC Board

L606

DET OK GND

+9V

-9V GND BP BM 5V

XS601

JP601

6DV718-1

2006/6/28

JP607

TC605

JP602

R621 TC615 R622

JP603

G602 JP609

TC601

TC607

R611

JK602

L605

LEI

JP606

U601

TC616

JP610 MIC601

XS603

TC617

JP608

AGND

TC618

JP604

R629

JP605

TC619

JK601

G601

TC614

TC620

- 92 -

5.1.8 Bottom layer of MIC Board

R630

C604

R635

C619

R637

C621

R636

U603

R638

C620

C622

R634

R633 C616

C617

R626

R628

R625

L601

R602

C609 R604

R631R632

C603 R606

C602 R605

C606R627 R610

R608

R613

R603

C625 R640 R624

C611

C607

C624

R639

R641

C613

C612

R623

Q602

C627

C626

C605

R607

C601

ZD601

C623

R601

Q601

C608

R617

- 93 -

5.1.9 Surface layer of AV Board

JK706

XS702

R709

L713

R708

R711

L714

7DV718-0 DVD 2006/06/17

LEI

V703

V702

XS703

R712

Y6Y5Y4

VGND

JP702

JP703

V701

VGND

JP716

JP715

JP707

JP712

JK705

JP713

JP714

JP717

JP705

PDAT2

JP718

JP706

PDAT1

SPDIF

VCC

JP704

JP709

JK702

VGND

JP719

L715

VGND

JP708

PDAT0

VIEDO

JP710

+10V

JP711

GND

JP701

XS701

- 94 -

5.1.10 Bottom layer of AV Board

R701

L708

C704

D704

ZD706

L702 C703 R718

C722

C717

L707

D703

ZD705

R702

D705

L701 C701

C702

R717

C720

C710

L709

R703

C706

ZD707

R719

L703 C705

C711

R706

R714

C727

R705

R715

C716

ZD704 R704

R710

C723 C724

ZD703

ZD702

C728

ZD701

R713

C726

R716

C725

D702

D701

- 95 -

5.1.11 POWER Board

BCN502

~220V

G502

BCN501

~220V

CAUTION:FOR CONTIUED AGAINST WITH T1.6A L250V FUSE

BC505

BCN503

BC504

G501

R501

RISK

OF FIREREPLACE

SAME TYPE

D502

D503

T1.6AL 250V F501

5DV985-2

DVD 2006/06/15

BC501

F501

LEI

PROTECTION

ONLY

D504

D501

L501

TC501

U501

C506

C505

R503

C502

VOLTAGE

C503

JP502

HIGH

D505

TC502

R512 R505

D506

T501

BC503

U502

D512

D513

C515

R502

U503

R506 R508 R509

TC508

TC504

R510

C512

TC505

AR K

R507

JP506

D508

D511

TC509

L507

ZD501

C510

C507

JP507

JP504

D510

TC506

TC503

D507

TC507

U504

JP501

+3.3V

D509

GND +5V GND

-9V +9V

R516

R515

C511

C508

JP503

-21V

G503

G504

FL+ FL-

GND +5V

JP505

CN502

CN501

- 96 -

BBK DV718SI Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual