BBK DV112, DV113, DV123SI Service Manual

DV112SI

DV113SI

DV123SI

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

1

1

1

1

1

2

2

2

2

2

2

2

3

3

3

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 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

4

4

4

4

5

5

5

6

7

7

7

7

8

8

2.4.6 Preference

9

2.4.7 Parental control

2.4.8 Initial setup

2.4.9 Rest to defaults

2.4.10 Exit

2.5 Specifications

Chapter Three Principle and Servicing

Section One Principle of the Player

3.1.1 Block diagram of the player

3.1.2 PCB board block diagram of the player

3.1.3 How to use IC

Section Two Unit Circuit Principle

3.2.1 Introduction to laser head

3.2.2 Servo circuit

3.2.3 Open/close drive circuit

9

9

9

9

9

11

11

11

12

13

14

14

16

18

3.2.4 Laser power control circuit

3.2.5 CD/DVD conversion circuit

3.2.6 Main axis control circuit

3.2.7 Decode circuit

3.2.8 Reset circuit

3.2.9 Video circuit

3.2.10 Audio circuit

3.2.11 Mute circuit

3.2.12 Decode circuit voltage regulating

3.2.13 Panel control circuit

3.2.14 MIC circuit

3.2.15 Power circuit

Section Three Servicing Cases

3.3.1 Servicing cases

3.3.2 Troubleshooting flow chart

18

19

20

21

22

23

24

25

26

27

27

27

29

29

35

Section Four

Section Five Function Introduction to IC

3.5.1 function introduction to MT1389 D

3.5.2 function introduction to 4558

Waveform diagram

47

53

53

61

3.5.3 function introduction to AT24C02

62

3.5.4 function introduction to TDA1308

3.5.5 function introduction to VIPer22ADIP

3.5.6 function introduction to AM5888S

3.5.7 function introduction to PT6961(4dv315)

3.5.8 Function introduction to SDRAM

3.5.9 Function introduction to FLASH

3.5.10 Function introduction to LM431A

3.5.11 Function introduction to Pc817

Chapter Four Disassembly and Assembly Process

Chapter Cinque PCB board & Circuit diagram

Section One PCB board

Section Two circuit diagram

63

64

65

67

68

69

70

71

72

73

73

80

Chapter six BOM List

DV123SI Service Manual

7.1.1 PCB composition figure of the player

7.2.1 Panel control circuit

7.2.2 MIC circuit

7.3.1 PCB board

7.3.2 circuit diagram

87

94

94

95

95

96

100

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.

- 1 -

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.

- 2 -

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 -

Functions and Operation Instructions

2.1 Features

Compatible Disc Types:

Digital video playback:DVD-Video, Super VCD, VCD Compatibility.
Digital audio playback:CD-DA and HDCD compatibility
Fully compatible with compressed audio files such as Mp3and WMA.
Digital graphic albums playback:kodak picture CD, JPEG compatibility.

Audio:

Coaxial output for Dolby Digital/DTS/LPCM digital audio.
Mixed audio output for amplifier or TV connection.
Digital multi-channel decoders, providing Dolby Digital/DTS audio stream playing.
MIC input for karaoke function.

Video:

108 MHZ/12 bit video Digital/Analog converter.
Composite, S-Video and RGB/SCART outputs for various types of connections.
Capable of playing NTSC/PAL discs.
Multiple dubbings, angles, subtitles support.
Sharpness, gamma, brightness, contrast, hue, saturation adjustment.

Others:

Compatible disc types:CD-R/CD-RW, DVD-R/DVD-RW, DVD+R/DVD+RW
Russia, CIS and Baltic States adaptation interface and filenames, ID3-tags and CD-Text support

simplifies device operation.

"Memory” function enables to save the last point after stop playback.
"Q-play” function provides direct playback and allows to skip commercial that is not possible to

rewind.

"Captrue” function allows to save any picture as background.
"Virtual Keyboard” function provides more convenient DVD playback control.
"Browser” function provides easy access to playback control.
Automatic Screenaver function.
Parental control function to protect children from watching inappropriate discs.
Super wide range of operating power supplies(~110-250V, 50/60Hz), automatic short circuit

protection.

Chapter Two

2.2 Control Button Locations and Explanations

2.2.1 Front Panel Illustration

- 4 -

1

1

DV112SI and DV113SI

2

2

3

3

4

5

8

4

6

7

5

6

7

8

2.2.4 Remote Control Illustration

1

POWER switch

2

;Disc tray

3

OPEN/CLOSE button

:

4

5

6

2.2.2 Rear Panel Illustration

1

Digital Audio Coaxial Out jack

2

2CH Audio Out jacks

3

S-Video

2.2.3 Display Window Illustration

Display window*

PLAY/PAUSE button

STOP button

4

5

9

Video Out jack

SCART Out jack

7

MIC jack

8

MIC volume control

9

IR sensor button

2.2.4 Remote Control Illustration

1

[ ]

Button

Open or close the dis tray.

2

LANG Button

Change the audio language or audio channel.

3

MEMORY Button

Save the playing point or jump to the saved point

4

DISP Button

Display or hide disc information.

5

NUMBER Buttons

Playback time

- 5 -

6

BROWSE Buttons

Switch new user interface.

7

CURSOR Buttons

8

SETUP Button

Function Setup.

[ ]

9

Button

Open/close the keyboard function.

[ ]

10

Button

Adjust picture ratio

[ ]

11

Button

Fast backward play.

[ ]

12

Button

Skip backward.

13

PEPEAT Button

Repeat play.

14

A-B Button

Repeat the select.

[ ]

15

Button

Press once to stand by, Press twice to play.

16

SUBT Button

Change subtitle language, Switch JPEG

Display mode.

17

Q-PLAY Button

Skip the advertisement/warning and play the DVD

directly.

18

ANGLE Button

27

CAPTURE Button

Set the played image as the Power-on logo.

28

VOL +/- Button

Increase/decrease volume level.

29

MUTE Button

Press once to mute, twice to turn off.

2.3 Accessories

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

Change camera angle

19

MENU Button

Display DVD menu or open/close PBC.

20

OK Button

21

Cancel Button

22

ZOOM +/- Button

Zoom in/out the displayed frame.

[ ]

23

Button

.

Play or pause playback

[ ]

24

Button

Fast forward play.

[ ]

25

Button

Stop playback.

[ ]

26

Button

Skip forward.

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

- 6 -

2.4 FUNCTION SETUP

2.4.1 Function Setup

1.Press The [SETUP] Button and The screen
displays the selection Menu of function setup.

Off

Com.

LB

L.

0

0

0

0

LB

L.

Off

0

0

0

0

Setup menu

DVD menu

Soundtrack

Subtitle

AUTO

PAL

NTSC

High

Medium

Low

Off

Language

Image

Sound

Playback

Preference

Parental control

Initial setup

Reset to defaults

Exit

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.

TV system

Video out.

TV format

Sharpness

Gamma

Brightness

Contrast

Hue

Saturation

AUTO

S-Vid.

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/DOEN] arrow to
select Medium,then press [OK], the TV screen
display.

TV system

Video out.

TV format

Sharpness

Gamma

Brightness

Contrast

Hue

Saturation

AUTO

5.Press [LEFT] butt on if you not 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

1.Setup menu:This item Is used to se t 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.

Russian

English

Ukrainian

2.4.3 Image

Off

AUTO

PAL

NTSC

LB

L.

0

0

0

0

TV system

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.Video output: To Set the Types of SCART out
connector.

Optional setting: S-Video,Component, SCART,
Default: Component.

When using RGB outputs from the SCART
interface,Please select RGB.Other,please
select Com-and when using S-Video output
please select S-Video.

- 7 -

3.TV format: To set the aspect ratio of This player
output image.

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

16:9 TV

Default: 16:9 letterb.

4.Sharpness:Used To set the sharpness of video
outputs.

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

5.Gamma emendation : This item is used To
setup the Gamma value of video output.

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

6.Brightness:Used to set the brightness of Video
outputs.

7.Contrast:Used to set the contrast of Video
outputs.

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

9. Saturation: Used to set the saturation of video
outputs.

Brightness, contrast, Hue and saturation

adjusting means:

A.Press [UP/DOWN] arrow In the video To select

The desired item you want to adjust.Press [OK]
or [RIGHT button] To enter the item's
adjustment.

B.Press [UP/DOWN] arrow to adjust the setting

value.

2.4.4 Sound

Mixer...

Digital output

Tuning

1.Mixer...

Stereo mix

Surr. Mix

A.Stereo mix: To set the output means of the left

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

Optional Setting: L+R, L, R.
Default: L+R.

B.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.

2.Digital output: select to set the format and
stream form of digital audio output.

A.SPDIF format:

Optional setting: RAW format, SPDIF/PCM.
Default: RAW format.

Stereo mix

Surr. Mix

L+R

off

L+R

off

L+R

L

R

B.LPCM

Optional setting: 48 kHz 16 bit, 96 kHz 24 bit.
Default: 48 kHz 16 bit.

3.Tuning:
A.Max volume: set the maximum volume limit.
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

Load effect

1.DVD: set whether information of advertisement
and warnings at the beginning of DVD disc is
skipped to play the movie directly.

Always skip ads

Optional setting: Yes,
Default: Number

2.VCD/SVCD: To set the PBC status.

When playing Super VCD or VCD2.0 discs, if

the PBC Is ON, The menu image displays

Optional setting: On, Off.
Default: On.

3.Files: data disc may probably includes Mp3,
JPEG format files in which you may select DVD
player to read the file type.

Optional setting: Audio, Picture.
Default: Audio, Picture.

4.Repeat : select the repeat playback mode.

Optional setting: Off, Single, all.
Default: Off.

5.Load effect: set the may to play JPEG image.

Optional setting: Off, from top, from bottom.

Advertisemenu No

A. P

Off

Off

- 8 -

Default: Off.

Playable discs

Inputs

DVD-Video, Super VCD, VCD, CD-DA, CD+G, HDCD, MP3, Kodak
piclure CD, JPEG

MIC INPUT

2.4.6 Preference

Gr. equalizer

Background

Screen saver

Off

std.

On

On

Off

Old password

New password

Verify

OK Cancel

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

Optional setting: On, Off.
Default: Off.

2.Background: This item is used ti setup the sort
of Power-in Logo.

Optional setting: Standard, saved.
Default: Standard.

NOTE

The Screen Logo refers that use the image
selected by pressing the [CAPTURE] button as
the power-on logo.When in the operation of
changing screen, if the power -on logo has not
set in Screen Logo, the unit will automatically set
the power-on logo as screen logo.

3.Screen saver: Open or close the screen saver

function.

Optional setting: On, Off.
Default: On.

2.4.7 Parental control

Any

Kid

G

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.
Default: 7890.

PG

PG-13

PGR

R

NC-17

2.4.8 Initial setup

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.

2.4.9 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.

2.4.10 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

- 9 -

Audio outputs

Video outputs Composite, S-Video RGB/SCART

Video characteristics

Audio characteristics

Operating voltage

Power Consumption

General Specification

Dimensions:
Mass:

DU112SI, DV113SI
320×224×41mm

1.7kg

DV123SI

420×275×47mm

2.3kg

Operating temperature

Operating humldlty

Outputs

20W

5 -35

15%-75%(no conden sation)

Analog audio output: Stereo
Digital audio output: Coaxial

Video amplitude: 1.0Vp-p(75 )
S-Video amplitude: Y:1.0Vp-p(75 ) C:0.286Vp-p(75 )

Frequency response 20-20000Hz(±1dB)
Signal-to-noise ratio >100(dB)
THD <0.01%

~100V-250V, 50/60Hz

Design and specifications are subject to change without notice.
We do not guarantee that all discs can be played smoothly due to the disc quality, disc recording

quality and recording format.

- 10 -

Chapter Principle and Servicing

Section One Principle of the Player

3.1.1 Block diagram of the player

DV317SI is composed by decode circuit, servo circuit, audio circuit, video circuit, MIC circuit and

power circuit, the block diagram of the player is shown as in the following figure 3.1.1.1:

PICK-UP

Feed
electric
machine

Main
axis
electric
machine

ACIN

VR-DVD

VD-CD

LD-DVD

LD-CD

TK-

TK+
FC+
FC-

SL+

M

M

SL-

SP+

M

SP-

Power
board

CD/DVD switch

Laser power
control

DVD:A/B/C/D/RFO

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

Am5888
U301

TRB2

TRB1

REGO1

Voltage
regulating
circuit

SDRAM 64M

U208

Ld02

Ld01

MDI

VIP4

FOSO

FMSO
DMSO

TRSO

REGO2

V18

Dv33

+9V

IOA

FLASH16M

U207

MT1389 D

U201

UREST

Reset

Panel

MIC board

XI

SDA

SCL

27M clock

EEPROM

U202

24C02

XO

MIC1

AL

AR

CVBS

Y/G

CB/B

CR/R

Audio
amplifying
filtering

U209

CVBS
B/U
R/V
G/Y

Video filtering

catching

L

R

SY
SC

Audio
output
terminal

S-video

Terminal

Video output

L#

R#

SPDIF

VIEDO#

PB#

PR#

Y#

SCART output terminal

-9V

Figure 3.1.1.1 Block diagram of the player

- 11 -

3.1.2 PCB board block diagram of the player

PCB board block diagram of the player is show as in the following figure 3.1.2.1:

Power board

5241-0

BCN501

AC220V

IOA

C

D

Laser head

RFO

ABF

F

A

B

IOA

RFO

XS301

GND

V20

V20

GND

+5V

E

VR-CD

AVCC

E

AVCC

VR-CD

XS205

_9V

+9V

XS601

VR-DVD

CD-LD

MDI

CD-LD

VR-DVD

GNDOKDET

HFM

DVD-LD

GND-LD

MDI

HFM

DVD-LD

GND-LD

Loader frame Small bracket

FC-

FC+

TK+

LOAD-

LOAD+

TROUT

LOAD-

LOAD+

TROUT#

SL+

SL-

LIMIT#

GND

SP+

GND

TRIN

GND

TRIN#

SP-

SL-

SP-

SL+

SP+

GND

LIMIT#

TK-CD

TK-

FC-

TK+

FC+

XS307 Xs306

CN501

+12V

-12V

GND

VCC

XS203

Decode board

2DV112S-0

Xs201

2

VSDA

3

VSCK

4

6

5

GNDVSTB

VCC

7

IR

Main panel

4911S-1

MIC board

6112S-2

Figure 3.1.2.1 PCB board block diagram of the player

This machine is mainly composed of decode board, power board, MIC board, main panel buildup

Decode board: includes decode, servo, audio, video output circuit.

Power board: provides working voltage for each circuit, output voltage has +12V, -129V and +5V.

MIC board: with single-way microphone input, MIC signals input to decode board after being

amplified.

Main panel: this panel is simple and mainly composed of remote control receiver and buttons.

Remark: in order to facilitate readers to better know the composition of machine, we have made

PCB composition figure, the connecting lines in PCB composition figure are the main control line, signal

line and power cord connected through flat cable, but all connected flat cable are not included.

- 12 -

3.1.3 How to use IC

Semi-finished PCB

name

IC model name Location Function

AZ431 U503 Precise voltage regulator

PC817 U502 Photoelectric coupler

VIPER22A U501 Power switch IC

Main panel 4911S-1 HS0038B3V U403 Remote control receiver

OK board 6112S-1 KA4558 U601

Operational amplifier (MIC

amplifying)

NJM4558 U219

Operational amplifier (audio

amplifying)

HY57V641620HGT-7 U206 SDRAM

24C02 U202 EEPROM

MT1389 D version U201 Decode chip

AM5888S U301 Servo drive

29LV160BE U214 FLASH

Decode board

2DV112 S-0

Power board

5241-0

DV112SI IC usage instruction is shown as in the following table:

- 13 -

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

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

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

- 14 -

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

Pin Name

Signal flow

direction

DVD disc CD disc No disc Function description

21 HFM Input loader 5.04 5.04 5.02

High frequency overlapping signal produces

laser with different wave length inside

loader

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.

- 15 -

3.2.2 Servo circuit

1. Servo system of this player adopts SANYO loader + MTK decode solution (MT1389D+FLASH

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

servo processing, digital signal processing IC MT1389D and drive circuit AM5888S , in which MT1389D

is also the main composed part of decode circuit. Servo circuit block diagram is shown as in the

following figure

Feed electric machine

Main axis electric machine

3.2.2.1:

Xs301

A B C D E F RFO

TK+ 16

FC+ 14

FC- 13

SL+ 17

Main axis control
detect circuit

Switch circuit

APC circuit

TK- 15

SL- 18

SP- 12

SP+ 11

Am5888

LOAD+

LOAD-

1

23

26

4

7
6

FOSO

FMSO

TRSO

DMSO

TRCLOSE

TROPEN

10

Disc in/out

9

electric machine

IOA

MD11

LDO2
LDO2

MT1389D

U201

Figure 3.2.2.1 Servo circuit block diagram

2. Working principle

After power on or disc in to proper position (on loader frame for general DVD players, on PCB board

below door for PDVD players), loader laser head begins reset, after laser head reaches to proper

position, detect switch will give a signal to MT1389, MT1389 begins to output focus, main axis and light

emission signals, disc begins to rotate, laser head begins to recognize disc information and judge

whether disc is CD or DVD according to disc information to facilitate to output level from IOA pin, control

disc switch circuit and laser head PD IC to make corresponding acts. At the same time, MT1389 also

adjusts laser power output through laser power control circuit.

After loader reads disc information, A, B, C, D, E and F signal are formed through photoelectric

conversion to MT1389 (DVD only has A, B, C, D signals) and RF signal and output from pin 2~11, 18, 19

of MT1389 respectively, after amplifying processing of pre-amplifier inside MT1389, now signals are

divided into 2 ways inside MT1389: one part, through summation amplifying and subtraction circuit

- 16 -

Inside MT1389, produces servo error signal, after digital servo signal circuit processing, forms

corresponding servo control signals, outputs FOO, TRO, DMO and FMSO servo control signal from pin

42, 41, 37 and 38 of MT1389 respectively and then send to servo drive circuit for drive amplifying

through the integration circuit composed by resistor and capacitor and bring along focus coil, trace coil,

main axis electric machine and feed electric machine after drive amplifying. 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 bring along disc to rotate. After processing of amplification by VGA

voltage control amplifier and 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. General

DVD players have a disc in/out circuit to control disc tray door in/out acts to reach the purpose of making

disc in and out. For PDVD, we adopt manual disc in/out means and we can judge whether disc in to

proper position through detect switch.

3. Explanation to servo terms

(1) FOO: for disc make differences, and 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,

now focus point of objective lens is required to adjust to make focus aim at data pit exactly. The acts are

mainly to make objective lens move upwards and downwards.

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

produce, now laser head is required to adjust. In this process, objective lens makes forward and

backward movement with small moving range.

(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 power on and selecting track.

(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.

- 17 -

3.2.3 Open/close drive circuit

1. Open/close drive circuit is shown as in the following figure 3.2.3.1:

27K

TRSO

FC+
FC­SP­SP+
LOAD+

LOAD-

TK­TK+
SL+
SL-

AM5888S

Figure 3.2.3.1 Open/close drive circuit diagram

STBY

V1P4

FMSO

TRCLOSE

TROPEN

DMSO

FOSO

2. Working principle: when the machine is reading discs normally, pin 6, 7, 9 10 of AM5888S are all

0V. After OPEN button is pressed, pin 6 inputs high level, pin 10 LOAD+ outputs high level, electric

R203

R202

R314

10K

R204

15K

MT1389D

R201

10K

27K

machine rotates to perform OPEN acts. When closing, pin 9 LOAD- outputs high level to pin 9 through

electric machine to form loop, electric machine rotates reversely to perform CLOSE acts. After closing to

proper position, all pins are all low level. Servo drive principle is the same with the drive of D5954

scheme, so we will not describe here.

3.2.4 Laser power control circuit

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

LDO-AV33

4.7R
TC302

47uF/16V

LDO2

V301

2SB1132-S

20/21

MT1389D

V302

2SB1132-S

LDO1

XS301

R301

23

MD1

20

19

TC303
47uF/16V

4.7R

R302

Figure 3.2.4.1 Laser power control circuit diagram

LDO-AV33

- 18 -

2. Working principle

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

V301_E 2.9V 3.2V V302_B 3.2V 2.2V

V301_B 2.2V 3.2V V302_E 3.2V 2.9V

V301_C 2.2V 0 MT 1389_20 0.2V 0.2V

V302_C 0 2.2V

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.

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

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 CD/DVD conversion circuit

1. CD/DVD conversion circuit is shown as in the following figure 3.2.5.1:

AVCC

V305
3904-S

R309

10K
R311

10K

R310

100K

IOA

MT1389D

R308

100K

XS301

V303

17

2SK3018-S

18

Figure 3.2.5.1 CD/DVD conversion circuit diagram

V304

2SK3018-S

2. Working principle

After loading disc in the player, IOA port of MT1389 is defaulted high level to make V305 saturation

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

- 19 -

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

V305 V303 V304

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 V305 cut off and make V303 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: V303 and V304 are MOS tube

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

3.2.6 Main axis control circuit

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

XS303

6P2.0mm

R330 10K

1
2
3
4
5
6

104

C313

R321

R319
150K

Figure 3.2.6.1 Main axis control circuit diagram

DV33

SL+
SL-

LIMIT#

SP+
SP-

1R

680K/1%

R320

150K

R318

R322

330

C307

LIMIT

222

R317

680K/1%

C308

101(DNS)

C310

222

R331

0R

OPO

ADIN

OP­OP+

V1P4

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

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

hasstopped 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,

- 20 -

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

Key point Position Normal working voltage (V) Volateg change when disc out (V)

SP+

Pin 11 of AM5888S, pin 5 of
XS307

3.79 3.79 0.70 1.80

SP-

Pin 12 of AM5888S, 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

AD IN Pin 47 of MT1389 2.44 2.41 0.41 2.44

DMSO Pin 4 of AM5888S 1.42 1.42

VIP 4 Pin 30 of MT1389 1.41 1.41

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 R331. 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:

3.2.7 Decode circuit

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

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

- 21 -

FLASH

PWR

PRD

PCE

A0~A20

AD0~AD7

URST

MT 1389

SDCLK

SDCKE

DCS

DRAS

SWE

DQM0

DQM1

DQ0~DQ15

MA0~MA11

SDRAM

Reset
circuit

SDA
SCL

EEPROM

24C02

Figure 3.2.7.1 Decode circuit block diagram

Clock

27M

V18

1.8V
voltage
regulating

3.3V
voltage
regulating

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.

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, MT1389D 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 Reset circuit

1. Reset circuit is shown as in the following figure 3.2.8.1:

DV33

R254
10K

V310

33R
R255

C272
104

URST#

1N4148

VD201

TC217

106

2SC1815-YS

R250

1K

R252

47K

Figure 3.2.8.1 Reset circuit diagram

- 22 -

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

normal. Now, voltage of TC217 to DV33 cannot change suddenly to make base electrode of V310 has

current flow in, V310 is saturation on, URST is low level. DV33 charges TC217 in two paths through

emitter junction of R252 and V310 make negative pole voltage of TC217 decrease slowly. When this

voltage decreases below 0.7V, V310 cuts off, URST changes into high level, the process for URST from

low to high is called effective reset signal of low level by us. After power off, voltage of DV33 decreases,

TC217 decreases together with DV33 voltage, VD201 performs suge discharge and clamping to Tc217.

3. Key point voltage (unit: V)

V310_B is low level when in normal condition, at the moment of power on, it decreased to 0V from

3.3Vgradually.

V310_C is high level when in normal condition, at the moment of power on, it increases to 3.3V from

0V.

3.2.9 Video circuit

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

SY

SC

Y4

179

Y5

181

MT1389

Y6

182

Y3

175

L212

L213

L214

L210

R/V/SY

CUBS

Figure 3.2.9.1 Video signal flow chart

L240

L239

L241

R284

CUBS#

3.2.9.1

S-Video

Jk202A

11

7

SCART

Terminal

15

19

Jk202B

CVBS -Video

2. Working principle: MT1389D 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 .

Terminal

Shown as in the figure 3.2.9.2, capacitor C253, C254 and inductor L210 compose a low-pass filter

to filter high frequency disturbance signal except useful signal; dual diode D220 composes a limiter

- 23 -

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.

VCC

L210

C253
47pF

1.8uH

C254
47pF

CVBS

D220
1N4148*2

Y3

R217

75R

VGND

VGND

Figure 3.2.9.2 Video output circuit

3.2.10 Audio circuit

1. Audio signal flow chart block diagram is shown in the figure 3.2.10.1:

MIC board

7

1

OKA

CH-L

CH-R

7

U601B

L235

L236

C2003

13

14

Jk201

1

Audio
terminal

6

U601A

3

L#

R#

MIC holder

SCART

Coaxial

R2132
R2156

AL

189

187

MT1389

AR

6

U219

2

SAPDIF

170

R233

Figure 3.2.10.1 Audio signal flow chart block diagram

2. Working principle: MT1389D has built-in audio DAC conversion circuit, which stimulates signals

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

signals directly. Shown in the figure 3.2.10.2, the right channel analog signals outputted by decode chip

are coupled by and then the high frequency component in audio signals is filtered by the low pass

filter composed of , for signals are damped through filtering circuit, the audio signals after

being filtered require the amplifying output by the amplifying circuit composed of , is

TC225

R2131 C2112

U219 R2129

feedback resistor, this circuit is a active filter on the whole.

R2132

24K

R

TC225

10uF/16V

OKA

AR

CH-R

TC240

R2129

30K

C211 1

120

10uF/16V

+12V

1

-12V

8

4

2

3

U219A
4580

R2130

5.1K

Figure 3.2.10.2 Amplifying circuit diagram

- 24 -

C2112

AGND

R2131

10K

222

3. External Karaoke signal input and output

After being amplified, MIC signals input to pin 2, 6 of U219 separately for amplifying output,

MIC_DET on MIC board is microphone detect pin.

3.2.11 Mute circuit

1. Mute circuit is shown as in the figure 3.2.11.1:

MUTE-DAC

R274

4.7K

89V33

R2101

100K

TC238
47uF/10V

Q211

2SA1015Y-S

MIC-DET

+12V

R21043.3K

-12V

Figure 3.2.11.1 Mute circuit

R2107

R21031K

R2106
10K

R2105
10K

0R(DNS)

Q212
2SC1815Y-S

R2108
10K

Q218
2SA1015Y-S

VD205
1N4148

AGND

MUTE-OUT

Q219
2SA1015Y-S

AGND

+12V

VD206
1N4148

TC235
100uF/16V

R2109
10K

R2160

0R(DNS)

2. Working principle of quieting circuit

When the player is working normally, shown in the figure 3.2.11.1, MT1389E outputs analog audio

signal, and a low level signal to

MUTE-DAC at the same time to make Q211 on, B electrode of Q211 is

VCC

R2161

0R

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

0.7V, voltage of Q218 E electrode is near to zero, Q218 cuts off, MUTE 1 is negative voltage, which is

added to base electrode of mute tube of audio output end to make mute tube cut off, and audio signal

outputs after being amplified by 4558. When pressing MUTE button on remote controller, MT1389 has

no audio signal that outputs to operational amplifier, so audio output end of the player has no audio

signal output, but because electronic elements in circuit will produce some noise when working that

transmits to output end of the player, in order to filter there noise, decode chip outputs a high level signal

to MUTE-DAC to make Q211 cut off, so Q212 cuts off, +5V power is transmitted to base electrode of

switch pipe Q205-Q210 through EC electrode of Q218, mute circuit is in mute state.

When player is not playing disc or stops playing, MT1389D outputs a high level signal to MUTE-

DAC to make audio circuit enter mute state.

After microphone is inserted into the machine, DET pin outputs low level, Q218E electrode is low

level, now no matter the former circuit outputs mute circuit, rear mute circuit does not work, and sound

outputs normally.

- 25 -

3. Power-off quieting working principle

As shown in the figure 3.2.11.1, when the player is working normally,

VD206 is on, +5V charges

capacitor TC235 through D20, now emitter voltage of Q219 is less than base electrode voltage, Q219

cuts off. When power off, VCC disappears, Q219 base electrode changes into low level, its emitter

electrode changes into high level because of discharge, now Q219 is on, Q219 collector electrode

(MUTE-OUT) outputs high level to add to base electrode of switch pip Q205-Q206, switch pipe is

saturated, noise produces in the course of power off is bypassed to ground, and power-ff quieting

function is realized.

3.2.12 Decode circuit voltage regulating

Decode circuit voltage regulating is shown as in the following figure 3.2.12:

MO-VCC

VD301

1N4001

V307
Ss8550

TR_B1

Ss8550

V308

12K

R327

V309

SS8550

R326
20K

REGO1

TR_B1

DV33

TC309

100uF/16V

23NC24

25

26

27

28

BIAS

MUTE

VINTK

TR_B2

VINFC1TR_B12REGO23VINSL+4REGO15FWD6REV

VD302

15

16

17

18

19NC20

21

22

30

U301

VOLD-

VOTK-

VOLD+

AM5888S

VOTK+

1.8V

C326

104

14

100uF/16V

TC308

REGO2

VCC2

PVCC

GND2

VINLD

PREGND

GND1

VCC18VOTR-9VOTR+10VOSL-11VOSL+12VOFC-13VOFC+

7

29

1N4001

V306
SS8550

R324

5.6K

R325

TR_B2

10K

Figure 3.2.12 Decode circuit voltage regulating circuit diagram

2. Working principle:

DV33 voltage regulating process: VCC reduces voltage through VD301, and supply power for rear

stage circuit through E-C electrode of V309. R326/R327 is feedback end sampling resistor.

Voltage regulating principle: Dv33 voltage increases REGO1 voltage increases TR_B1

voltage increases V309VCE voltage increases DV33 voltage decreases.

Voltage regulating principle of 1.8V is the same with that of DV33, only a diode (VD302) is added to

perform voltage reduction.

3. Key point voltage (unit: V) is shown as follows:

C electrode of # V309: 3.95, B electrode: 3.35, C electrode: 2.25

C electrode of # V306: 3.25, B electrode: 3.55, C electrode: 1.95

# REGO1 REGO2 is 1.25V

- 26 -

3.2.13 Panel control circuit

This main panel (4911-1) has no display screen and drive IC. PT6961 is mainly composed of panel

button and remote control receiver, the coding of button function is completed by decode chip.

3.2.14 MIC circuit

MIC board (6112S-1) mainly fulfills the amplifying and output of MIC signal, shown in the figure

3.2.14.1, after microphone is inserted into the machine, MIC signals, after being filtered, are sent by

TC601 to pin 3 of MIC signal amplifying circuit U601 for in-phase amplifying, and then output from pin 1

of U601, through volume adjustment by potentiometer VR602, input to pin 6 of U601 for reverse

amplifying, then output from pin 7 of U601 to decode board and audio amplifying circuit for mixed

amplifying.

TC605

47U/16V

TC601

47U/16V

R601

22K

R603
560R

C603
103

R607

1K

R609 33K

C605 101

2

3

R605
10K

-9VA

8 4

+9VA

U601A

4558

TC603

1

47U/16V

R619

1K

L601
FBSMT

3

VR602

10K

1

R612

2

6.8K

C607

6

5

R613
33K

101

U601B
4558

Figure 3.2.14.1 MIC circuit diagram

3.2.15 Power circuit

1. Power circuit block diagram is shown as in the following figure 3.2.15.1:

Rectification

Power grid
filtering

Protector tube

Filtering

HOST GND

Switch IC

Absorption loop

FSDH321

Feedback
winding

Transformer

Rectification

Rectification

Rectification

Filtering

Filtering

Filtering

7

TC613

47U/16V

+5V

-9V

R626
1K

+9V

C619
104

OK

Power socket

Photoelectric
coupling

TLV 431

Sampling
circuit

Figure 3.2.15.1 Power circuit block diagram

- 27 -

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.

(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

is decided by feedback loop. Feedback loop performs sampling to +5V 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 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 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 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

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

power board is made to output stable voltage.

- 28 -

Section Three Servicing Cases

3.3.1 Servicing cases

Example 1 Symptom: noise appears when power off

Description: at the moment of power off, audio output has noise; TV loudspeaker gives a bump

sound.

Analysis and troubleshooting: when this type of trouble appears, trouble always appears in power-

off noise removing circuit; firstly, test the MUTE-1 voltage of Q219 C electrode at the moment of power

off, shown in the figure 3.3.1.1, voltage of this point changes from -7.8V to 0.5V gradually at the moment

of power off, use multimeter to test elements around Q214, VD206 1N4148 diode has been stricken

through, after changing it, trouble is removed.

MUTE-OUT

Q219
2SA1015Y-S

AGND

Figure 3.3.1.1 Quieting circuit diagram

+12V

VD206
1N4148

TC235
220uF/16V

10K

R2109

VCC

R2160

0R(DNS)

R2161

0R

Example 2 Symptom: no sound

Description: picture output is normal

Analysis and troubleshooting: test sound output, pin 1, 7 of circuit operational am[lifier and there is

no signal output, test power supply voltage of operational amplifier and it is 9V which is on low side with

only two and a little, after removing load, test 9V voltage output of power board and it is normal, so we

confirm that trouble lies in decode board, only U219 of decode board has +9V power supply, test the

resistance to ground of pin 8 of U219 and it is 86 , which should be infinite in normal conditions, so we

doubt that U219 has trouble, change it and trouble is removed.

- 29 -

Example 3 Symptom: power not on

Description: no picture, no sound and no screen display

Analysis and troubleshooting: shown in the figure 3.3.1.2, after power on, use voltage level (20V) of

multimeter to test the power supply from power board to decode board ( 9, +5, 3.3V) and it is normal,

check reset circuit V310 working and it is normal, check clock and there is no 27MHZ oscillation

frequency, so it is doubted that the fault of crystal oscillator X201 caused the trouble, after changing it,

disc reading and output are normal and trouble is removed.

R246 100K

XI

C275

33pF

Figure 3.3.1.2 Clock circuit diagram

X201
27MHz

XO

C276
33pF

Example 4 Symptom: picture mosaic when reading disc

Description: power on and read disc, after displaying DVD format, machine down and picture has

mosaic, power on again, picture still has mosaic but not read disc. Put the machine aside for 20 minutes

and trouble disappears.

Analysis and troubleshooting: firstly test voltage of each spot +5V, +3V and core voltage 1.86V and

they are all normal, so we doubt that it is affected by temperature. Use electric hair drier to heat each IC

of decode board and find that when temperature of decode IC 1389D increases 20-degree, machine

down and picture has mosaic, change 1389D chip and trouble is removed.

Example 5 Symptom: no sound

Description: disc reading is normal and there is sound output

Analysis and troubleshooting: use remote controller to restore to default settings firstly, then

connect with audio terminal and check whether there is sound output; check pin 1, 7 of operational

amplifier U219 Ic4558 and there is no sound output, test pin 4, 8 of 4558 and there is no +9V voltage,

Check and find that XS203 has +9V voltage input, test and find that one end of L220 has 9V voltage and

the other end has no voltage output, change L210 and trouble disappears.

Example 6 Symptom: power not on

Description: no picture, no sound and no screen display

Analysis and troubleshooting: check power board and find that voltage of each channel has no

output, check and find that 220V voltage input is normal, test bridge rectification circuit and there is no

voltage output, use multimeter to test protector tube and it has open circuit, change protector tube and

- 30 -

trouble is not removed, test anode of Tc501 and there is still no voltage output, protector tube is burnt

out again, check 4 diode of bridge rectification circuit and they are all normal, TC501 has no

abnormalities of liquid leakage and stricken through, test U501 (switch IC) and pin 1, 8 are short-

circuited to ground, so it is judged that IC has been stricken through, change IC and trouble is removed.

Example 7 Symptom: power not on

Description: no screen display and no output

Analysis and troubleshooting: check +5V voltage output of power board and it is normal; check

voltage of pin 4 of XS203 and it is also +5V, which is normal; after power of for a period, use hand to

touch 1389 and find that 1389 does not work (feel the temperature here. If 1389 has began to work, the

temperature will be high), so firstly consider the power supply of 1389; shown in the figure 3.3.1.3, test

anode of Tc307 and there is no +1.8V voltage (output voltage of V309, V308 emitter electrode supplies

+3.3V power for 1389), check V306, V307 and they are all normal, test base electrode voltage of V306

and it is zero, this signal is AM5888 output, test voltage of pin 8, 19, 21 of AM5888 and they are all 5V,

which is normal, so we judge that AM5888 has trouble; change it and trouble is removed.

MO-VCC

1

A

VD301

1N4001

K

VD302

2

1.8V

TR_B2

C326

104

V306

B

SS8550

TC308
100uF/10V

REGO2

E

TR_B2

C

R324

5.1K

1N4001

E

V307

B

SS8550

C

R325

10K

Figure 3.3.1.3 circuit diagram

V308

SS8550

V309

TR_B1 TR_B1

SS8550

R326
20K

100uF/10V

12K

R327

REGO1

TC309

DV33

C327
104

Example 8 Symptom: power not on(DV123SI)

Description: power on, test and find that there is no +5V, 3.3V voltage output.

Analysis and troubleshooting: 1. Insert power cord, use multimeter to test whether 220V AC input is

normal, and the result is normal;

2. Check whether each voltage input of XS203 on decode board is normal, and find that+5V has no

input but others are normal;

- 31 -

3. Pull out flat cable of decode board XS203, test each input voltage again and there is still no +5V

voltage;

4. Check whether two ends of +5V on power supply flat cable from power board CN502 to decode

board, and result is normal;

5. Test voltage of two ends of TC506, +5V has no output; after power off, use 200 ohm level of

multimeter to test two ends of TC506 and find that resistance is close to zero, so we doubt that capacitor

TC506 has electricity leakage; take down TC506, test anode welding point of TC506 and find that +5V

output is normal, but there is still no 3.3V output;

6. Test two ends of diode D507 on power board and find that one end is 5V voltage and the other

end has no voltage output. After changing D507, 3.3V output is normal, and machine works normally.

Example 9 Symptom: sound has no output

Description: after power on, each audio channel has no sound output when playing discs, when

switching MUTE function; output has no change, no sound output.

Analysis and troubleshooting: we know from trouble symptom, the common channel of sound

output has abnormality, firstly test operational amplifier IC 4558 +9V and -9V power supply voltage and it

is normal, use multimeter to test voltage of pin 186, 183 of decode chip 1389D and it is 3.3V, which is

normal, use oscillograph to test audio output waveform of pin 189, 187 of 1389D and it is normal, shown

in the figure 3.3.1.4, use multimeter to test voltage of C electrode of mute circuit Q218 and it is 4.6V and

keeps in 4.6V when no disc in and playing discs, when testing electrode resistance of Q218 and Q219

triode, the positive/negative direction resistance of C, E electrode of Q219 is about 500Ù, after changing

Q219 triode, trouble is removed.

R2107

R2106
10K

R2105
10K

0R

Q212
2SC1815Y-S

R2108
10K

Q218
2SA1015Y-S

VD205
1N4148

AGND

MUTE-OUT

Q219
2SA1015Y-S

AGND

+12V

VD206
1N4148

TC235
220uF/16V

R2109
10K

VCC

R2160

0R(DNS)

R2161

0R

MUTE-DAC

R274

4.7K

89V33

R2101

100K

2SA1015Y-S

TC238
47uF/10V

Q211

MIC-DET

+12V

R21043.3K

-12V

R21031K

Figure 3.3.1.4 Quieting circuit diagram

- 32 -

Example 10 Symptom: not read DVD

Description: laser head, focus, feed, main axis and trace are all normal, but no light emission.

Analysis and troubleshooting: check emitter electrode voltage of Q301 and it is 3.3V, which is

normal, test the inductor L303between collector electrode and pin 23 of Xs301 and find that inductor has

open circuit; after changing inductor, trouble is removed.

Example 11 Symptom: less screen display

Description: when reading disc, display screen does not emit light for a period.

Analysis and troubleshooting: beat machine and test, screen less display always exists; use diode

level of multimeter, red pen connected with any pin of screen and black pen tested pin of screen tube,

test each screen pin one by one and check light emission segment of screen and a segment of screen

does not emit light, so we may judge that screen is damaged; after changing screen, trouble is removed.

Example 12 Symptom: clutter

Description: disc reading of machine is normal, picture output is normal, sound output has noise

Analysis and troubleshooting: power on and read disc (test disc), use oscillograph to test the

output waveform of pin 1, 7 of decode board operational amplifier U219 IC4558 and it is clutter, test

output waveform of pin n2, 6 of operational amplifier and it is clutter, test AL, AR output waveform of pin

189, 187 of 1389D and it is clutter, test power supply and clock of 1389 and they are both normal, so it is

judge that 1389D has trouble, after changing iot, trouble is removed.

Example 13 Symptom: not read disc

Description: not read any disc, laser head, light emission, feed, main axis and trace are all normal,

but there is no focus acts.

Analysis and troubleshooting: use multimeter to test pin 13, 14 of U301 (5888) and voltage is

normal (about 1.4V), test pin 1, 2 of XS301 and voltage is normal, check nerve flat cable and the contact

is good, so we judge that laser head focus coil is burnt out; after changing loader, trouble is removed.

Pins have 10 ohm resistance (o ohm resistance in normal conditions), so we judge that light touch has

trouble; after changing light touch switch, trouble is removed.

Example 14 Symptom: door not open

Analysis and troubleshooting: press OPEN button, check pin 39 of 1389and it is high level, normal;

check on state between pin 39 of 1389 and pin 6 of U301 (AM5888) and it is good; check pin 9, 10 of

U301and there is no voltage output (pin 9 is low, pin 10 is high), so we doubt that AM5888 has trouble,

after changing it, trouble is removed (AM5888 integrates open/close circuit).

- 33 -

Example 15 Symptom: disc rotation speed too fast when door opens

Description: when playing normally, open disc, disc tray cannot come out immediately, after disc

tray out, disc will rotate on the tray for a while and then stop.

Analysis and troubleshooting: if this kind of trouble appears, the problem will appear in main axis

servo drive circuit, when opening door, test voltage change of pin 11, 12 of U301 AM5888S and it is high

and low level alternative, which is normal, shown in the figure 3.3.1.5, test ADIN signal of pin 43 of 1389

and it is always 0V, test voltage of OPO signal of pin 34 of 1389 and it changes in 0.8~2.3V, use

multimeter to test the voltage drop between pin 34 and pin 43 of 1389 and it is in 0.8~2.3V, test R331

resistor and it has open circuit, after changing it, trouble is removed.

XS303

6P2.0mm

1
2
3
4
5
6

R330 10K

C313102

R321

R319
150K

1R

DV33

SL+
SL­LIMIT

SP+
SP-

R320
150K

R318

680K/1%

Figure 3.3.1.5 Servo circuit diagram

C307

222

R317

680K/1%

R322

330R

C308
101(DNS)

C310
222

LIMIT#

R331

0R

OPO

ADIN

OP­OP+

V1P4

- 34 -

3.3.2 Troubleshooting flow chart

1. Troubleshooting process for “Power on (insert “power plug” and turn on “power switch”) is shown

in the following figure 3.3.2.1:

Power on test

Whether

power-on picture

may be displayed

Y

N

Whether

3.3V, 1.8V power is
normal

Y

Check

whether 27M clock is

normal

Y

Whether

reset is normal

Y

Check

whether SDRAM

and FLASH power

supply is

normal

Y

Whether

firmware is normal

N

N

N

N

N

Whether

voltage regulating

circuit of Dv33 1.8V

is normal

Check clock circuit

Check reset circuit

Power supply loop and
filtering circuit

Upgrade again

N

Check voltage regulating circuit

Whether

disc reading is normal

Y

A

Check

whether clock

of SDRAM is

normal

Check

whether SDRAM

works

Change MT1389

N

Servo circuit troubleshooting

Y

Check

N

Y

N

Y

whether FLSAH

and MT1389 has rosin

joint

Y

Weld again

Check

whether SDRAM

MT1389 has rosin

joint

Y

Weld again

N

N

Change

Change

- 35 -

A

Whether

sound is normal

Y

Whether

screen display is normal

N

N

whether MT1389

has audio signal

Check audio output circuit

Whether

MT1389 has signal to

Check panel circuit

Check

output

Y

panel

Y

N

Check MT1389 and power supply

N

Whether

firmware is correct

Change 1389

Figure 3.3.2.1 Troubleshooting flow chart for “Power on”

N

Upgrade again

Y

- 36 -

2. Troubleshooting process for “Not read disc” is shown in the following figure 3.3.2.2:

Not read disc

Whether

laser head resets

Y

Whether

there is focus acts

Y

N

N N

Whether

pin 26 of AM5888S

has feed signal

input

Y

Check

whether voltage

of pin 17/18 of AM5888S

is normal

Y

Check AM5888S

Whether

pin 1 of AM5888S

has focus signal

input

Y

Check

whether voltage

of pin 13, 14 of AM5888S

is normal

Y

N

Check MT1389 and filtering
capacitor

N

Check electric machine

Check MT1389 and filtering
capacitor

N

Check AM5888S

Whether

main axis electric

machine rotates

Y

Whether

laser head emits light

Y

B1

Check the line from pin 1,
2 of XS301 to coil

N

N

pin 4 of AM5888S has

signal input

whether voltage

of pin 11, 12 of AM5888S

Check electric machine

whether APC

circuit supplies voltage

for laser head

Change loader

Whether

Y

Check

is normal

Y

Check

Y

N

Check MT1389 and filtering
capacitor

N

N

Check AM5888S

Check

whether LDO_DV33 is

normal

B2

N

Check power supply circuit

Y

- 37 -

B2

B1

Whether

rotation speed of disc

is normal

Y

Change loader

N

three is RF signal

there is ABCDEF signal

Whether

Y

Whether

Y

Check

whether LD01 is normal

Check

V301, V302 and socket

XS301

Change 24P flat cable

N

Change loader

N

Check XS301 and flat cable

N

Y

N

Y

Check MT1389

Change

Check MT1389 and the peripheral

Figure 3.3.2.2 Troubleshooting flow chart for “Not read disc”

- 38 -

3. Troubleshooting process for “Video has no output” is shown in the following figure 3.3.2.3:

Video has no output

Check
whether output
mode switches

correctly

Y

Check

whether 27M clock

is normal

Y

Whether

a certain video signal

has no output

Y

Whether

component video has

output

Y

Whether

composite video has

signal output

N

N

N

N

N

Resume setup mode

Check clock circuit

Check

whether power

supply of video output of

MT1389 is

normal

Change MT1389

Check component video output
circuit with the method the same
with that of composite video

Whether

pin 175of

MT1389 has signal

output

N

Check power supply loop

N

Change MT1389

Y

Check

whether pin 5

of Jk202 has signal

output

Y

Check Jk202

N

Check vide filtering circuit

Figure 3.3.2.3 Troubleshooting flow chart for “Video has no output”

- 39 -

4. Troubleshooting process for “Left channel has no sound” is shown in the following figure 3.3.2.4:

Left channel has no sound

Check

whether pin 189

of MT1389 has sound

output

Y

Check

whether pin 6

of U219 has audio signal

input

Y

Check

whether pin 7

of U219 has signal

output

Y

Check

whether pin 1

of Jk201 has signal

output

Y

N

N

N

N

MT1389 has trouble

Check the line between
MT1389 and U219

U209 has trouble

Test Q206

Whether

filtering capacitor

has electric

leakage

Y

Remove one by one

N

Check line and terminal

Figure 3.3.2.4 Troubleshooting flow chart for “Left channel has no sound”

- 40 -

5. Troubleshooting process for “MIC has no sound output” is shown in the figure 3.3.2.5:

MIC has no sound output

Check

whether pin 3

of U601has signal

input

Y

Check

whether pin 1

of U601 has signal

output

Y

Check

whether pin 6

of U601 has signal

input

Y

Check

whether pin 7

of XS601 has signal

output

Y

N

N

N

N

Check MIC socket

Check U601 and power
supply loop

Check Vr602

Check pin 7 of U603 and the
line between it and XS601

Whether

DET pin is low level

Y

Check

whether the line

to decode chip is

normal

N

N

Change MIC socket

Remove one by one

Figure 3.3.2.5 Troubleshooting flow chart for “MIC has no sound output”

- 41 -

6. Troubleshooting process for "No +5V voltage (power board 5317SI-1)" is shown in the following

figure 3.3.2.6:

No +5V voltage

Whether

cathode of

D510 has power

output

Y

Whether

pin 4 of CN501

has power

output

Y

OK

N

Check D510 and transformer

N

Check +5V filtering circuit

Figure 3.3.2.6 Troubleshooting process for “No +5V voltage”

- 42 -

7. Troubleshooting process for "Voltage output is unstable (power board 5317SI-1)" is shown in the

following figure 3.3.2.7:

Voltage output is unstable

Check

whether LM431 pin has

voltage

Y

Check

whether LM431 is

normal

Y

Check

whether photoelectric

coupler is

normal

Y

Change U501,C506

N

Check LM431 and sampling
circuit R508 R509 C515 R506

N

N

Change LM431

Change photoelectric coupler

Figure 3.3.2.7 Troubleshooting flow chart for “Voltage output is unstable”

- 43 -

8. Troubleshooting process for “No +9V voltage (power board 5317SI-1)” is shown in the following

figure 3.3.2.8:

No +9V voltage

Whether

D508 cathode has

power output

Y

Whether

pin 1 of CN501 has

power output

Y

OK

N

Check D508 and transformer

N

Check +9V filtering capacitor

Figure 3.3.2.8 Troubleshooting flow chart for “No +9V voltage”

- 44 -

9. Troubleshooting process for “No -9V voltage (power board 5317SI-1)” is shown in the following

figure 3.3.2.9:

No -9V voltage

Whether

cathode of D511 has

power output

Y

Whether

pin 2 of CN501 has

power output

Y

OK

N

Check D511 and transformer

N

Check -9V filtering capacitor

Figure 3.3.2.9 Troubleshooting process for “No -9V voltage”

- 45 -

10. Troubleshooting process for “No voltage output (power board 5317SI-1)” is shown in the

following figure 3.3.2.10:

No voltage output

Whether

two ends of TC501

have 300V

voltage

Y

Whether

voltage of each

pin of U501 is

normal

Y

Check U501 peripheral
and transformer

Figure 3.3.2.10 Troubleshooting flow chart for “No voltage output”

N

N

two ends of power
grid filter have AC

Check rectification tube
D501 D504

Change U501

Whether

input

Y

N

Check power cord

- 46 -

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.

XS301 1. RFO signal waveform diagram of pin 8 of

2. A signal waveform diagram of pin 9 of Xs301(B C D E F

- 47 -

3. DMO signal (when there is main axis rotation) waveform diagram of pin 37 of U201 (MT1389)

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

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

- 48 -

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

7. Waveform diagram of pin 29 (when no disc in) of U214 (FLASH)

8. Waveform diagram of pin 38of U211 (SDRAM)

- 49 -

9. Video signal waveform diagram

10. Waveform diagram of audio signals without being filtered and amplified (test point: audio signal

amplifying input end Tc241)

11. 1KHZ signal waveform diagram. It is suggested to use test disc, if not, the tested waveform will

change at any time to affect judgment.

- 50 -

12. LEF#: waveform diagram for subwoofer channel analog signa(DV521)l

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

14. 27M clock signal waveform diagram

- 51 -

15. Reset signal waveform diagram

URST#

Dv33

- 52 -

reference current for RF path.

Section Five Function Introduction to IC

3.5.1 function introduction to MT1389 D

MT1389D adopts LQFP 256 pin sealing packaging, 3.3V/1.8V dual voltage working mode, a
good-performance large-scale CD-ROM, DVD-ROM front-stage processing CMOS integrated circuit, and
special chip for CD/VCD/DVD player. It includes focus servo error amplifying and trace servo error
amplifying, and RF horizontal output servo control. The main functions include:

The main function of RF small signal front stage processing is to perform the relevant processing and

amplifying to RF signals conveyed by laser head part, and automatically adjusts laser output power.

Digital servo processing may produce focus, trace, feed and main axis servo control signals; digital signal

processing fulfills EFM/EFM + modulating of RF signal.

MPEG-1/MPEG -2/MPEG4/JPEG Video decode: this chip can not only fulfill decoding to VCD, DVD, but

also read JPEG picture to realize digital album playback function.

In audio aspect, AC-3/DTS dual decoding can be realized. This chip has built-in audio D/A converter to
make peripheral circuit simpler and has built-in 108MHZ video coder.

Pin Main Type Description

RF Interface ( 26 )

191 RFGND18 Ground Analog ground

192 RFVDD18 Power Analog power 1.8V

212 OSP Analog output RF Offset cancellation capacitor connecting

213 OSN Analog output RF Offset cancellation capacitor connecting

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

215 IREF Analog Input

216 AVDD3 Power Analog power 3.3V

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

1 AGND Ground Analog ground

2 DVDA Analog Input AC coupled input path A

3 DVDB Analog Input AC coupled input path B

4 DVDC Analog Input AC coupled input path C

- 53 -

5 DVDD Analog Input AC coupled input path D

6 DVDRFIP Analog Input AC coupled DVD RF signal input RFIP

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 input A

13 SB Analog Input DC coupled sub-beam RF signal input B

14 SC Analog Input DC coupled sub-beam RF signal input C

15 SD Analog Input DC coupled sub-beam RF signal input 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 MDI1 Analog Input Laser power monitor input

21 MDI2 Analog Input Laser power monitor input

22 LDO2 Analog Output Laser driver output

23 LDO1 Analog Output Laser driver output

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

1) Central servo

25 CSO Analog output

2) Positive main beam summing output

26 RFLVL Analog 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

- 54 -

32 TEO Analog output Tracking error monitor output

33 TEZISLV Analog output TE Slicing Level

Analog Servo Interface ( 8 )

204 ADCVDD3 Power Analog 3.3V Power f or ADC

205 ADCVSS Ground Analog ground for ADC

206 RFVDD3 Power Analog Power

207 RFRPDC Analog output RF ripple detect output

208 RFRPAC Analog Input RF ripple detect input(through AC-coupling)

209 HRFZC Analog Input High frequency RF ripple zero crossing

210 CRTPLP Analog output Defect level filter capacitor connecting

211 RFGND Ground Analog Power

RF Data PLL Interface ( 9 )

195 JITFO Analog output The output terminal of RF jitter meter.

196 JITFN Analog Input The input terminal of RF jitter meter.

197 PLLVSS Ground Ground pin for data PLL and related analog circuitry.

198 IDACEXLP Analog output Data PLL DAC Low -pass filter

199 PLLVDD3 Power Power pin for data PLL and related analog circuitry.

200 LPFON Analog Output The negative output of loop filter amplifier

201 LPFIP Analog Input The positive input terminal of loop filter amplifier.

202 LPFIN Analog Input The negative input terminal of loop filter amplifier.

203 LPFOP Analog Output The 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

39

Analog Output Tray PWM output / Tray open output.

M

40

PWMOUT1

Analog Output

ADIN0

1) 1st General PWM output, or

2) AD input 0

41 TRO Analog Output Tracking servo output. PDM output of tracking servo compensator.

- 55 -

42 FOO Analog Output Focus servo output. PDM output of focus servo compensator

LVTTL 3.3V Input, Schmitt Input,

pull up , with analog input path for

FG

1) Motor Hall sensor input, or

43

2) AD input 1, or

(Diogital pin)

ADIN1

3) GPIO

General Power/Ground ( 27 )

48,84,103,

DVDD18 Power 1.8V power pin for internal digital circuitry

133,156

71,93,120,

DVSS Ground 1.8V Ground pin for internal digital circuitry

143

58,61,87,

108,123,13

DVDD3 Power 3.3V power pin for internal digital circuitry

8,151,168

56,74,97,

115,130,145

DVSS Ground 3.3V Ground pin for internal digital circuitry

,160

184 APLLCAP Analog Inout APLL External Capacitance connection

185 APLLVSS Ground Ground pin for audio clock circuitry

183 APLLVDD3 Power 3.3V Power pin for audio clock circuitry

Micro Controller and Flash Interface ( 48 )

54 HIGHA0 Inout 4~16MA, SR PU Microcontroller address 8

68 HIGHA1 Inout 4~16MA, SR PU Microcontroller address 9

67 HIGHA2 Inout 4~16MA, SR PU Microcontroller address 10

66 HIGHA3 Inout 4~16MA, SR PU Microcontroller address 11

65 HIGHA4 Inout 4~16MA, SR PU Microcontroller address 12

64 HIGHA5 Inout 4~16MA, SR PU Microcontroller address 13

63 HIGHA6 Inout 4~16MA, SR PU Microcontroller address 14

62 HIGHA7 Inout 4~16MA, SR PU Microcontroller address 15

85 AD7 Inout 4~16MA, SR Microcontroller address/data 7

81 AD6 Inout 4~16MA, SR Microcontroller address/data 6

80 AD5 Inout 4~16MA, SR Microcontroller address/data 5

79 AD4 Inout 4~16MA, SR Microcontroller address/data 4

78 AD3 Inout 4~16MA, SR Microcontroller address/data 3

77 AD2 Inout 4~16MA, SR Microcontroller address/data 2

- 56 -

76 AD1 Inout 4~16MA, SR Microcontroller address/data 1

75 AD0 Inout 4~16MA, SR Microcontroller address/data 0

88 IOA0 Inout 4~16MA, SR PU Microcontroller address 0 / IO

72 IOA1 Inout 4~16MA, SR PU Microcontroller address 1 / IO

47 IOA2 Inout 4~16MA, SR PU Microcontroller address 2 / IO

49 IOA3 Inout 4~16MA, SR PU Microcontroller address 3 / IO

50 IOA4 Inout 4~16MA, SR PU Microcontroller address 4 / IO

51 IOA5 Inout4~16MA,SR PU Microcontroller address 5 / IO

52 IOA6 Inout 4~16MA, SR PU Microcontroller address 6 / IO

53 IOA7 Inout 4~16MA, SR PU Microcontroller address 7 / IO

60 A16 Output 4~16MA, SR PU Flash address 16

86 A17 Output 4~16MA, SR PU Flash address 17

55 IOA18 Inout 4~16MA, SR PD, SMT Flash address 18 / IO

57 IOA19 Inout 4~16MA, SR PD, SMT Flash address 19 / IO

69 IOA20 Inout 4~16MA, SR PD, SMT Flash address 20 / IO

1) Flash address 21 / IO

82 IOA21 Inout 4~16MA, SR PD, SMT

2) While External FLASH size <= 2MB: GPIO

83 ALE Inout 4~16MA, SR PU, SMT Microcontroller address latch enable

73 IOOE# Inout 4~16MA, SR SMT Flash output enable, active low / IO

59 IOWR# Inout 4~16MA, SR PU, SMT Flash write enable, active low / IO

70 IOCS# Inout 4~16MA, SR SMT Flash chip select, active low / IO

89 UWR# Inout 4~16MA, SR PU, SMT SMT Microcontroller write strobe, active low

90 URD# Inout 4~16MA, SR PU, SMT Microcontroller read strobe, active low

91 UP1_2 Inout 4MA, SR PU, SMT Microcontroller port 1-2

92 UP1_3 Inout 4MA, SR PU, SMT Microcontroller port 1-3

94 UP1_4 Inout 4MA, SR PU, SMT Microcontroller port 1-4

95 UP1_5 Inout 4MA, SR PU, SMT Microcontroller port 1-5

1) Microcontroller port 1 -6

96 UP1_6 Inout 4MA, SR PU, SMT

2) I2C clock pin

98 UP1_7 Inout 4MA, SR PU, SMT

99 UP3_0 Inout 4MA, SR PU, SMT

1) Microcontroller port 1-7

2) I2C data pin

1) Microcontroller port 3-0

2) 8032 RS232 RXD

- 57 -

100 UP3_1 Inout 4MA, SR PU, SMT

1) Microcontroller port 3-1

2) 8032 RS232 TXD

1) Microcontroller port 3-4

101 UP3_4 Inout 4MA, SR PU, SMT

2) Hardwired RD232 RXD

3) I2C clock pin

1) Microcontroller port 3-5

102 UP3_5 Inout 4MA, SR PU, SMT

2) Hardwired RD232 TXD

3) I2C data pin

106 IR IR Input SMT IR control signal input

107 INT0# Inout 4~16MA, SR PU, SMT Microcontroller external interrupt 0, active low

Audio interface ( 14 )

1) Audio left/right channel clock

2) Trap value in power -on reset:

163 ALRCK Inout 4MA,PD,SMT

I) 1 : use external 373
II) 0: use internal 373

3) While internal AUDIO DAC used: GPO

1) Audio bit clock

161 ABCK Inout 4MA

2) While internal AUDIO DAC used: GPIO

162 ACLK Inout 4MA SMT

164 ASDATA0 Inout 4MA PD SMT

165 ASDATA1 Inout 4MA PD SMT

166 ASDATA2 Inout 4MA PD SMT

1) Audio DAC master clock

2) While internal AUDIO DAC used: GPIO

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

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

3) While internal AUDIO DAC used: GPO

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

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

3) While only 2 channels output: GPO

1) Audio serial data 2 (Center/LFE)

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

3) While only 2 channels output: GPO

- 58 -

1) Audio serial data 3 (Center-back/ Center-left-back/Center-right-

back, in

167 ASDATA3 Inout 4MA PD SMT

6.1 or 7.1 mode)

2) While only 2 channels output: GPIO

1) Microphone serial input

2) While not support Microphone:

169 MC_DATA Inout 2MA

I) Microcontroller external interrupt 2
II) GPIO

170 SPDIF Output 4~16MA, SR : ON/OFF SPDIF output

186 ADACVDD3 Power 3.3V power pin for AUDIO DAC circuitry

1) AUDIO DAC right channel output

187 AR Output

2) While internal AUDIO DAC not used: GPO

188 VCM Analog AUDIO DAC reference voltage

1) AUDIO DAC left channel output

189 AL Output

2) While internal AUDIO DAC not used: GPO

190 ADACGND Ground Ground pin for AUDIO DAC circuitry

Video Interface ( 12 )

171 DACVDDC Power 3.3V power pin for VIDEO DAC circuitry

172 VREF Analog Bandgap reference voltage

173 FS Analog Full scale adjustment

174 DACVSSC Ground Ground pin for VIDEO DAC circuitry

175 CVBS Output 4MA, SR Analog composite output

176 DACVDDB Power 3.3V power pin for VIDEO DAC circuitry

177 DACVSSB Ground Ground pin for VIDEO DAC circuitry

178 DACVDDA Power 3.3V power pin for VIDEO DAC circuitry

179 Y/G Output 4MA, SR Green or Y or SY or CVBS

180 DACVSSA Ground Ground pin for VIDEO DAC circuitry

181 B/CB/PB Output 4MA, SR Blue or CB/PB or SC

182 R/CR/PR Output 4MA, SR Red or CR/PR or CVBS or SY

MISC ( 10 )

105 PRST# Input PU, SMT Power on reset input, active low

104 ICE Input PD, SMT Microcontroller ICE mode enable

193 XTALO Output 27M crystal out

194 XTALI Input 27M crystal in

- 59 -

44 GPIO0 Inout 4MA, SR SMT General purpose IO 0

45 GPIO1 Inout 4MA, SR SMT

1) General purpose IO 1

2) Microcontroller external interrupt 4

46 GPIO2 Inout 2MA General purpose IO 2

1) General purpose IO 3

157 GPIO3 Inout 2MA

2) Microcontroller external interrupt 1

158 GPIO4 Inout 2MA General purpose IO 4

1) General purpose IO 5

159 GPIO5 Inout 2MA

2) Microcontroller external interrupt 3

Dram Interface ( 38 ) ( Sorted by position )

155 RA4 Inout DRAM address 4

154 RA5 Inout DRAM address 5

153 RA6 Inout DRAM address 6

152 RA7 Inout DRAM address 7

150 RA8 Inout DRAM address 8

149 RA9 Inout DRAM address 9

148 RA11 Inout Pull-Down DRAM address bit 11

147 CKE output DRAM clock enable

146 RCLK Inout Dram clock

144 RA3 Inout DRAM address 3

142 RA2 Inout DRAM address 2

141 RA1 Inout DRAM address 1

140 RA0 Inout DRAM address 0

139 RA10 Inout DRAM address 10

137 BA1 Inout DRAM bank address 1

136 BA0 Inout DRAM bank address 0

135 RCS# output DRAM chip select, active low

134 RAS# output DRAM row address strobe, active low

132 CAS# output DRAM column address strobe, active low

131 RWE# output DRAM Write enable, active low

129 DQM1 Inout Data mask 1

128 RD8 Inout DRAM data 8

- 60 -

127 RD9 Inout DRAM data 9

126 RD10 Inout DRAM data 10

125 RD11 Inout DRAM data 11

124 RD12 Inout DRAM data 12

122 RD13 Inout DRAM data 13

121 RD14 Inout DRAM data 14

119 RD15 Inout DRAM data 15

118 RD0 Inout DRAM data 0

117 RD1 Inout DRAM data 1

116 RD2 Inout DRAM data 2

114 RD3 Inout DRAM data 3

113 RD4 Inout DRAM data 4

112 RD5 Inout DRAM data 5

111 RD6 Inout DRAM data 6

110 RD7 Inout DRAM data 7

109 DQM0 Inout Data mask 0

3.5.2 function introduction to 4558

1. Description

The RC4558 and RM4558 devices 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

- 61 -

◆ 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

5 2IN+ I

6 2IN– I

7 2OUT O

8 VCC+ I

3.5.3 function introduction to AT24C02

1. Description

Description

Output 1
Inverting Input Pin 1

Non-Inverting Input Pin 1
Description

Description
Negative Power Supply

Non-Inverting Input Pin 2
Inverting Input Pin 2

Output 2
Positive Power Supply

The AT24C02 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

- 62 -

◆ 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

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

8 VDD I Positive Power Supply

3.5.4 function introduction to TDA1308

1. DESCRIPTION

The TDA1308; TDA1308A 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

- 63 -

?◆ 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

3.5.5 function introduction to VIPer22ADIP

1. DESCRIPTION

The VIPer22A 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.

– Overvoltage protection in hiccup mode.

2. FEATURES

◆ FIXED 60 KHZ SWITCHING FREQUENCY

- 64 -

◆ 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.
6 DRAIN I Power MOSFET drain.

7 DRAIN I Power MOSFET drain.
8 DRAIN I Power MOSFET drain.

3.5.6 function introduction to AM5888S

1. Description

The AM5888S is a five-channel BTL driver IC for driving the motors and actuators such as used in DVD
player and consists of two independent precision voltage regulators with adjustable range from 1.5V to 4 V. It
supports a variety of applications. Also, Pb free package is selectable (Please refer to Marking Identification).

2. Fetures

1) Two channels are voltage-type BTL drivers for actuators of tracking and focus. Two channels are
voltage-type BTL driver for sled and spindle motors. It is also built-in one channel bi-direction DC motor driver
for tray.

2) Wide dynamic range [9.0V (typ.) when Vcc1= Vcc2= 12V, at RL= 20¦¸ load].

3) Separating power of Vcc1 and Vcc2 is to improve power efficiency by a low supply voltage for tracking,
focus, and spindle.

4) Level shift circuit built-in.

5) Thermal shut down circuit built-in.

6) Mute mode built-in.

7) Dual actuator drivers:

- 65 -

A general purpose input OP provides differential input for signal addition. The output structure is two

power OPAMPS in bridge configuration.

8) Sled motor driver:A general purpose input OP provides differential input for signal addition. The output
structure is one power OPAMP in bridge configuration.

9) Spindle driver:Single input linear BTL driver. The output structure are two power OPAMPS in bridge
configuration.

10) Tray in-out driver:The DC motor driver supports forward/reverse control for tray motor.

11) 2 Built -in regulator controllers: Adjustable range 1.5V ~ 4V

3. PIN DESCRIPTION

PIN Symbol I/O Description

1 VINFC I Input for focus drive

2 TRB_1 O Connect to external transistor base
3 REGO2 O Regulator voltage output, connect to external transistor collector

4 VINSL I Input for the sled driver
5 REGO1 O Regulator voltage output, connect to external transistor collector

6 FWD I Tray driver forward input
7 REV I Tray driver reverse input

8 VCC1 I Vcc for pre-drive block and power block of sled and tray
9 VOTR- O Tray driver output (-)

10 VOTR+ O Tray driver output (+)
11 VOSL+ O Sled driver output (+)

12 VOSL- O Sled driver output (-)
13 VOFC- O Focus driver output (-)

14 VOFC+ O Focus driver output (+)

15 VOTK+ O Tracking driver output (+)
16 VOTK- O Tracking driver output (-)

17 VOLD+ O Spindle driver output (+)
18 VOLD- O Spindle driver output (-)

19 VCC2 I Vcc for power block of spindle, tracking and focus
20 NC No Connection

21 VCTL I Speed control input of tray driver
22 GND I Ground

23 VINLD I Input for spindle driver

- 66 -

24 NC No Connection
25 TRB_2 O Connect to external transistor base

26 VINTK I Input for tracking driver
27 BIAS I Input for reference voltage

28 MUTE I Input for mute control

3.5.7 function introduction to PT6961(4dv315)

1. DESCRIPTION

PT6961 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

◆ 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

- 67 -

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

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

3.5.8 Function introduction to SDRAM

64M 16-bit memorizer SDRAM with the player and the working clock frequency is 166/143MHZ. The
function 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 ant i-shaking effect of player. Pin function introduction is shown as the following table:

Pin Name

1 VDD 3.3V power supply 　 28 VSS Ground 　

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

Function Signal flow Pin Name Function Signal flow

- 68 -

3 VDDQ

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

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

3.3V power supply I/O 30 MA5 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

9 VDDQ

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

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

12 VSSQ

13 DQ7 Data bus I/O 40 NC Blank 　

14 VDD 3.3V power supply 　 41 VSS Ground 　

15 LDQM

16

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

WE Write control signal I 43 VDDQ

Data input/output screen-shielded

Ground 　 33 MA8 Address bus I

3.3V power supply 　 36 NC Blank 　

Ground 　 39 UDQM

I 42 DQ8 Data bus I/O

signal

Data input/output

I

screen-shielded signal

3.3V power supply 　

18 RAS Row address gating signal I 45 DQ10

19

20 SD -BS0 Segmanr address 0 gating signal

21 SD -BS1 Segmanr address 1 gating signal

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 　

CS Chip selection signal I 46 VSSQ

I 47 DQ11 Data bus I/O

I 48 DQ12

Address bus I 49 VDDQ

Data bus I/O

Ground 　

Data bus I/O

3.3V power supply 　

Data bus I/O

Data bus I/O

Ground 　

Data bus I/O

3.5.9 Function introduction to FLASH

FLASH (U214) 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. Pin function is shown as the following table:

- 69 -

Pin Name Function Voltage (when no disc) Data direction

Ｒ

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

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

AO-A19 20 bit address bus 　 I

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

　 I/O

mode as address line

　 I

3.5.10 Function introduction to LM431A

U503 (LM431A) is a 2.5V comparator, shown as the figure 3.4.12.1. 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 3.4.12.1 LM431A outside drawing

- 70 -

3.5.11 Function introduction to Pc817

U502 (2501) is a photoelectric coupler, shown as the figure 3.4.13.1. 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 out puts
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 3.4.13.1 2501 outside drawing

- 71 -

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:

- 72 -

Chapter Cinque

PCB board & Circuit diagram

Section One PCB board

5.1.1 Surface layer of KEY SCAN Board

XS401

TC407C405

DAT
DCK
DST
GND
VCC
IR

U403

R415

G

O V

JP401
D401

K401

4911S-1

2004.10.20

K402

K403

- 73 -

5.1.2 Bottom layer of KEY SCAN Board

R416

R417

R418

- 74 -

5.1.3 Surface layer of DECODE&SERVO Board

C2008

R287

AGND

+12V

-12V

R320
R321
R319
R318

R#

L#

GND
VCC

SL+
SL­LIMIT
GND
SP+
SP-

L237

XS203

TC208

L238 VD223

XS305

L222

XS301

XS303

V303

L306
L304
L303

C260

R220

L220
L221

C310

TRI

C313

C271

GND

V304

R310

L205

TC301

R331

C307
R317

TRO

L239

L213
C259

C269

R303

C268

L311

XS302

C255

C305

R219

C270

R308

TC304

R330

V302

L201

C304

R322

C308

C258

C327

R311

C306

R313

VD222

C345

R328

L216

C301

V305

L-

C314

L240
C256

L212
C257

R301

L+

C315

V301

U301

R221

TC207

TC305

R302 TC303

V306

R329

JK203

L241

V311C2007

C262

VD224

C277

L214

C261

R285

VD205

TC235

R2108

Q218

D

R2105

Q212

R2106

D

Q219

R2104

TC238

Q211

R2101

L208

L309

L233
R206

R2107

R2103

C201
C202
C203
C204

C206

TC206

TC205

C316
C317

TC302

TC204

C318
C319

C302
C303

VD301

VD302

V309

CBE

TC308

C326 R327

C

R2160

R335
R336

CBE

C

TC214

C205

R2161

R333
R334

V313

R291

VD206

R274

L215

C235

TC309

R326

R2109

R223

R290

C227

R288
R289

C225

X201

C224

V308

CBE

V312

C223

R286

R246

C220

C231

TC202

C233

JK202

C254

R217

TC215

R227

U214

U211

R325

C2004
VD220

C275

V307

C

R324

TC201

C276

BE

L210
C253

R284

C278

C217

R2133
R2156

R2135

TC216

R281

C2005

R214

TC237

C2006

B

TC203

C216

TC217

LCDIN

VSDA

R2112

R2119

R2120
TC241

B

L227

TC245

L204

VSCK

VSTB

L206

U201

GND

A

TC226

R264

R263

U206

L217

VCC

L232

IR

L235

Q206

C280

C263

E

C2001

C2115

R277

L228

L231

R2134

C2114

A

R2117

U219

L207

C264

L230EC265

R2111

R2118

28

54

C230

C2111

TC211

26

50

R230

R259

R229

R260

C266

L236

Q205

TC240

R2129
R2131

TC225

R278

TC212

R282

C2003

C2002

C283

C2116

R2130

R2132
C2112

LEI

2DV112S-0

DVD 2006/03/19

25

27

1

U203

1

U202

XS201

V
T

XS304

C245
L226

XS202

R283
R233

DET

OKA
AGND
+12V

-12V

VCC

GND

TXD

RXD

3.3V

JK201

S

S

- 75 -

5.1.4 Bottom layer of DECODE&SERVO Board

C234

C294

C214

C222

C221

C219

C218

R224
C215
C241
C242
C243
C320

C212

C239

R203

C228

R239

R241

R240
R242

R238

R314

C249

C248

C247

C246

RN201

R267
R268

C250

C251

C252

VD201

R252

C272

R253

C236
L234

C207

C296

V310

C211

R255

C210
C209
C237

C208

C244

R254

C240

C213

C226

C238

C273

C312

C311

- 76 -

5.1.5 Surface layer of earphone Board

JP601

TC613

TC605

U601

XS601

R632

R633

+5V

-9V

+9V

OK

DET

AGND

TC615

TC616

JP602 TC603

TC601

VR602

6112S-1

DVD 2006.02.13

JP603

MIC602

LEI

- 77 -

5.1.6 Bottom layer of earphone Board

R619
R612

C625

C606

L601

L602

R603

R601

C603

R605

C605
R609

R613
C607

1

R607

C601

R626

C602

C619

C604

R623

- 78 -

5.1.7 POWER Board

G502

G501

GND

+3.3V

GND
+5V
GND

-9V
+9V

V

S

JP502

CN502

JP501

CN501

+9V

-9V

GND

+5V

TC510

R517

D513

R509

C508

D509

R507

TC513

C510

R508

R511

TC504

R506

TC506

+

+

ZD502

TC505

L507

L505

TC512

D510

TC503

JP503

6
7
8
9

10

U503

JP504

D511

C515

D508

BC503

T501

U502

5241-0

2006/3/18

R512

D506

R505

+

TC502

C504

R503

D504

C506

D501

D502

D503

BCN502

TC501

U501

5

L503

4

C503

3
2

1

D505

C502

R501

L501
BCN503

CAUTION:

BC501

T1.6AL 250V

F502

AC 220V IN

FOR CONTINUED
PROTECTION AGAINST
RISK OF FIRE
ONLY WITH SAME TYPE

T1.6AL 250V FUSE

F501

REPLACE

F501

BCN501

- 79 -

5.2.1 DECODE&SERVO Board 1

Section Two circuit diagram

+12V

TC215
100uF/25V

C280
104

AGND

TC240

10uF/16V

CH-R

1K

Q205
2SC1815Y-S

Q206
2SC1815Y-S

89V33

R2101
100K

R2117

1K

R2118

1K

R2119

1K

R2120

TC238
47uF/10V

Q211

2SA1015Y-S

MIC-DET

+12V

R2104 3.3K

-12V

CH-L

MUTE-OUT

R2107

R2103 1K

R2106
10K

R2105
10K

TC241

10uF/16V

0R

Q212
2SC1815Y-S

R2108
10K

Q218
2SA1015Y-S

VD205
1N4148

AGND

Rt

R2111

Lt

MUTE-DAC

100K

R2112
100K

AGND

R274

4.7K

- 80 -

R2129

+12V

1

-12V

R2133

+12V

7

-12V

MUTE-OUT

Q219
2SA1015Y-S

-12V

C283
104

AGND

30K

C2111 121

U219A
4580

4 8

30K

C2114 121

U219B
4580

4 8

VD206
1N4148

TC235
220uF/16V

AGND

R2109
10K

2

3

6
5

OKA

TC216
100uF/25V

R2130

4.7K

R2134

4.7K

+12V

R2160

0R(DNS)

AGND

AGND

C2116
102

AGND

R2132

24K

R2131
10K
C2112

222

R2156

24K

R2135
10K
C2115

222

VCC

R2161

0R

L#
AGND
R#

R

10uF/16V

TC225

L

10uF/16V

TC226

XS305

1
2
3

XS03

AGND

AGND

R278
180K(DNS)

R277
180K(DNS)

AR

AL

24P0.5mm

- 81 -

XS303

6P2.0mm

XS302

5P2.0mm

XS301

AVCC

MO-VCC

2

C

B C

E

1

3

2SB1132

LDO-V33

EC

TC302

R301

47uF/10V

4.7R

V301

2SB1132-S

B

V302

2SB1132-S

IOA

R310
100K

14
13

FC-

12

SP-

11

SP+
LOAD+

10
9

LOAD-

8

29

GND

TRCLOSE

7

TROPEN

6
5

REGO1

4
3

REGO2

2
1

FOSO

OPO

ADIN

OP­OP+

V1P4

1.8V DV33

C326
104

R302

4.7R

1

V304

2SK3018-S

C302

104

R314
10K

V306

B

TR_B2

SS8550

TC308
100uF/10V

REGO2 REGO1

LDO2

2SK3018

V303

VD302

1N4001

D

1

L201

FBSMT

EC

V307

SS8550

2 SG31

R308
100K

MO-VCC

XS04(2mm)

B E1C2

2N3904

1

VD301

A

1N4001

K

2

LDO-V33

TC303
47uF/10V

LDO1

3 2

3 2

C303
104

2SK3018-S

MO-VCC

TC304

100uF/10V

DMSO

EC

TR_B2 TR_B1 TR_B1

B

R324

5.1K

R325

10K

3

XS203

VCC

SS8550

V308

CE

2N3904-S

12K

R327

1
2
3
4

V305

AVCC

R303
10K

B

R311
10K

V309

SS8550

R326
20K

L220 FB
L221 FB

L222 FB

DVD: 0V
CD: +3.3V

IOA

TC309
100uF/10V

89V33

L205
FB

AVCC为机 芯 供 电

L233

FBSMT

FBSMT

C327

104

VCC

L309
FBSMT

L227

TC203

47uF/10V

AVCC

L207
22uH

R206

4.7R

+12V-12V VCC

C268
104

C345
104

TC214

100uF/10V

C207
104

DACVDD3

C294

682

C269

104

LDO-V33

L208

FBSMT

C244
104

220uF/10V

C208
104

C270
104

TC208

220uF/10V

TC305

PLLVDD3

104

C234

104

1389D引脚 上 的 去 偶 电 容

C209
104

ADACVDD3

TC245

1000uF/16V

AGND

C214

C210
104

L228

FBSMT

C271
104

C215

103

C211
104

TC211

47uF/10V

DV33

RFVDD3

TC207

220uF/10V

C221

222

C212
104

APLLVDD3

L216
FB

C213
104

DV33

C240
104

89V33

XS304

6P2.0mm

INTEL 4M(28F400): VCC
OTHER TPYE 8M DV33：

DV33

L226
FB

1.8V

L204

FBSMT(DNS)

L206

FBSMT

C245
104

L215

FBSMT

C273

1
2
3
4
5
6

104

AGND

V18

C246
104

C235
104

VDVCC

+12V

-12V
VCC

C247
104

TC237

47uF/10V

C236
104

C248
104

C237
104

SD33

C296
104

C249
104

C238
104

MIC-DET
OKA

C250
104

C239
104

C251
104

R318

4.7uH
FBSMT

4.7uH

FBSMT

15
16
17
18
19
20
21

30

22
23
24
25
26
27

AVCC

C312
104

U301

VOTK+
VOTK­VOLD+
VOLD­VCC2
NC
PVCC

GND2

PREGND
VINLD
NC
TR_B2
VINTK
BIAS
MUTE28VINFC

AM5888S

C307

222

R317

680K/1%

C310
222

LD-DVD

MDI
LD-CD
VR-DVD
VR-CD

E
V20

F
B
A
RFO
IOA
D
C
TK­TK+
FC+
FC-

VOFC+

VOFC-

VOSL+

VOSL-

VOTR+

VOTR-

VCC1

GND1

REV

FWD

REGO1

VINSL+

REGO2

TR_B1

R322
330R

C308

101(DNS)

R331

LIMIT#

0R

24

GND-LD

23

LD-DVD

HFM
MD
LD-CD
VR-DVD
VR-CD

E
AVCC
Vref
GND-PD
F
B
A
RF

CD/DVD

D
C
TK­TK+
FC+
FC-

C301
104

C305

R313 10K

C313 102

DV33

C315
102

L303

L304

L306

L311

C311

TC301

104

220uF/10V

TK- FC+
TK+
SL+
SL-

C304

C306

104

104

FMSO

TR_B2
TRSO
V1P4 TR_B1

104

STBY

R330 10K

R321 1R

R328
10K

LOAD­LOAD+
TROUT

TRIN

C314

102

R319
150K

DV33

SL+
SL­LIMIT

SP+
SP-

R320
150K

680K/1%

22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

1
2
3
4
5
6

R329
10K

1
2
3
4
5

5.2.2 DECODE&SERVO Board 2

TC212

C252

220uF/10V

104

RFV18

L234

FBSMT

C226
104

U202

TEO: TRACKING ERROR MONITOR OUTPUT

AT24C02/X4050

1

DC/NC

2

RST_/NC

3

WP/RST_

4

VSS

BA1 DBA1

4

BA0

3

CS#

2

RAS#

1

R264
R263
R268

WE#
CAS#

R267

FOSO
TRSO
FMSO
DMSO

C319

331

V1P4

- 82 -

VD201
1N4148

7
6
5
4

XS201

3

XS07

2
1

C263

121

2

1

RN201
33R*4

K
A

VCC

VCC

RST/WP

SCL

SDA

C318
331

TC217
10uF/16V

R252
10K

8
7
6
5

5

DBA0

6

DCS#

7

DRAS#

8

33R

SDCKEDCKE

33RDCLK SDCLK
33R

DWE#

33R

DCAS#

C317

104

R253

1K

R230

10K(DNS)

L230
L231
L232
L217

C264

C265

121

121

DV33

R2591KR260
C230
104

R336 27K
R335 27K
R334 15K
R333 10K

C316

153

R229
FBSMT

FBSMT
FBSMT
FBSMT
FBSMT(DNS)

C266

121

DV33

VSTB
VSCK
VSDA
LCDIN

1K

R254
10K

V310
2N3904-S

IR

SCL
SDA

FOO
TRO
FMO
DMO

TC204

47uF/10V

FOO: FOCUS SERVO OUTPUT
TRO: TRACKING SERVO OUTPUT
FMO: FEED MOTOR CONTROL
DMO: DISK MOTOR CONTROL

URST#

R255
33R

C272
102

V1P4

TC205

C243

104

47uF/10V

FEO: FOCUS ERROR MONITOR OUTPUT

2K(NC)

FS0

ASDAT2

168

167

166

DVDD3

ASDATA3

GPIO7

ICE

103

104

105

ICE

URST#IRINT0#

TRCLOSE

ASDAT0

ASDAT1

164

165

ASDATA0

ASDATA2

ASDATA1

IR

PRST#

INT0#

106

107

R214

510R

ALRCK

163

ALRCK

DVDD18

DVDD18

DVDD3

108

C216 104

ACLK
ABCK

DVSS
GPIO5
GPIO4
GPIO3

RA4
RA5
RA6
RA7

DVDD3

RA8
RA9

RA11

CKE

RCLK

DVSS

RA3

DVSS

RA2
RA1
RA0

RA10

DVDD3

BA1

BA0
RCS#
RAS#

CAS#

RWE#
DVSS
DQM1

RD8

RD9
RD10
RD11
RD12

DVDD3

RD13
RD14

DVSS

RD15

RD0

RD1

RD2

DVSS

RD3

RD4

RD5

RD6

RD7

DQM0

LQFP216/SMD

C233
391

JITFNJITFO

R227
750K/1%

XI

C275
22pF

ACLK
ABCK

TROUT
TRIN
LIMIT#

MA4
MA5
MA6
MA7

MA8
MA9
MA11
DCKE
DCLK

MA3

MA2
MA1
MA0
MA10

BA1
BA0
CS#
RAS#

CAS#
WE#

DQM1
DQ8
DQ9
DQ10
DQ11
DQ12

DQ13
DQ14

DQ15
DQ0
DQ1
DQ2

DQ3
DQ4
DQ5
DQ6
DQ7
DQM0

R246
100K

X201

27MHz

V18

89V33

162
161
160
159
158
157
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109

C218

V20

C242

104

101(DNS)

C206

TC206

47uF/10V

C

B

A

STBY

V2P8

C241

C201 105

C202 105

C203 105

C204 105D

C205 105RFO

RFVDD3

C320
104

C222

22pF

C223 102

C224 104

208

207

HRFZC

RFRPAC

HIGHA7

HIGHA6

64

63

A14

A13

V1P4

206

RFRPDC

RFVDD3

HIGHA4

HIGHA5

65

A12

R224 100K

204

205

203

ADCVSS

ADCVDD3

HIGHA366HIGHA1

HIGHA2

68

67

A11

A10A9A20

PLLVDD3

C220 473

C219 473

201

202

200

199

LPFIP

LPFIN

LPFOP

LPFON

PLLVDD3

MT1389D

MT1389D SMD LQFP-216_0

IOCS#

IOA20

71

70

69

PCE#A1PRD#

104

C228 104

C
B
A

D
SUBA
SUBB
SUBC
SUBD

E

F
MDI

LDO2
LDO1

RFOP
RFON

V2P8
V20
V1P4
FEO
TEO
TEZISLV
OPO
OP­OP+
DMO
FMO
TROPEN
V1P4_IN
TRO
FOO
ADIN
VSYNC
HSYNC

A2
A3

A4
A5
A6
A7
A8

RFVDD3

89V33

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

V18

XS04(DNS)

AGND
DVDA
DVDB
DVDC
DVDD
DVDRFIP
DVDRFIN
MA
MB
MC
MD
SA
SB
SC
SD
CDFON
CDFOP
TNI
TPI
MDI1
MDI2
LDO2
LDO1
SVDD3
CSO/RFOP
RFLVL/RFON
SGND
V2REFO
V20
VREFO
FEO
TEO
TEZISLV
OP_OUT
OP_INN
OP_INP
DMO
FMO
TROPENPWM
PWMOUT1/ADIN0
TRO
FOO
FG/ADIN1
GPIO0
GPIO1
GPIO2
IOA2
DVDD18
IOA3
IOA4
IOA5
IOA6
IOA7
HIGHA0

XS202

R223 15K

216

AVDD3

IOA18

55

A18

1
2
3
4

C225 333

C227 104

210

212

213

209

215

214

211

OSP

OSN

IREF

RFGC

RFGND

CRTPLP

DVDD361A1660IOWR#59DVDD3

IOA19

DVSS

62

58

57

56

A19

A15

PWR#

A16

DV33
RXD
TXD
GND

0.47(DNS)

JITFN

198

197

196

JITFN

PLLVSS

IDACEXLP

U201

DVSS74IOOE#73IOA172DVSS

AD0

75

AD0

JITFO

195

JITFO

76

AD1

XI

194

XTALI

AD277AD1

AD2

10uF/16V

RFV18

XO

192

193

XTALO

AD378AD4

79

AD3

AD4

TC202

TC201

10uF/16V

ADACVDD3

AR

AL

191

190

186

188AL189AR187

VCM

RFGND18

RFVDD18

ADACGND

ADACVDD3

AD6

ALE

IOA21

AD5

DVDD1884AD785A1786DVDD387IOA088UWR#89URD#90UP1_291UP1_392GPIO693UP1_494UP1_5

81

83

82

80

AD5

AD6

AD7

FS1

ALE

AGND

APLLVDD3

184

185R182B181

183

APLLVSS

APLLCAP

APLLVDD3

A17

UWR#

A0

URD#

180G179

UP1_2

C217

152

DACVDD3

Y4Y5Y6

178

DACVSSA

DACVDDA

VSCK

IOA

R281

2.2M

177

176

DACVSSB

DACVDDB

95

VSTB

VSDA

Y3

175FS173

174

CVBS

DACVSSC

UP1_696DVSS

97

SCL

171

172

VREF

UP1_798UP3_099UP3_1

100

SDA

LCDIN

MUTE-DAC

SPDIF

MCDATA

170

169

SPDIF

DACVDDC

MC_DATA

UP3_4

UP3_5

101

102

RXD

TXD

5.2.3 DECODE&SERVO Board 3

XO

C276
22pF

U206

SDRAM 64Mb(TSOP54)

23

MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
MA10
MA11
DBA0
DBA1

SDCLK
SDCKE

DCS#
DRAS#
DCAS#
DWE#

DQM0
DQM1

MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8

- 83 -

MA9
MA10
DBA0

SDCLK

SDCKE
DCS#

DRAS#

DCAS#

DWE#

DQM0
DQM1

A7
A6
A5
A4
A3
A2
A1
A0
AD0

24
25
26
29
30
31
32
33
34
22
35
20
21

38
37

19
18
17
16

15
39

36
40

54
41
28

21
22
23
24
27
28
29
30
31
32
20
19

35

34
18

17

16

15

14
36

33
37

5

A7

6

A6

7

A5

8

A4

9

A3

10

A2

11

A1

12

A0

13

DQ0

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10/AP
A11
BA0/A13
BA1/A12

CLK
CKE

/CS
/RAS
/CAS
/WE

DQML
DQMH

NC
NC

VSS
VSS
VSS

U203

SDRAM 1Mb*16(SOP50)

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
BA/A11

CLK

CKE

CS
RAS

CAS

WE

DQML

DQMH
NC

NC

A12

A15

A16

A18

1

A124A153A162A18

DQ114DQ215VSS16DQ317DQ418DQ519DQ6

AD1

AD2

AD3

GND

VD

32WE31

AD4

VCC

DQ10
DQ11
DQ12
DQ13
DQ14
DQ15

VCCQ
VCCQ
VCCQ
VCCQ

VSSQ
VSSQ
VSSQ
VSSQ

PWR#

AD5

DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9

VCC
VCC
VCC

A17

30

20

AD6

DQ10
DQ11
DQ12
DQ13
DQ14
DQ15

VCCQ
VCCQ
VCCQ
VCCQ

VSSQ
VSSQ
VSSQ
VSSQ

A17

DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9

VCC
VCC

VSS
VSS

A14
A13

A11

A10

DQ7

A8
A9

OE

CE

2
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53

1
14
27

3
9
43
49

6
12
46
52

U211

FLASH/4M

DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15

SD33

SD33

2

DQ7

3

DQ6

5

DQ5

6

DQ4

8

DQ3

9

DQ2

11

DQ1

12

DQ0

39

DQ8

40

DQ9

42

DQ10

43

DQ11

45

DQ12

46

DQ13

48

DQ14

49

DQ15

SD33

1
25

7
13
38
44

4
10
41
47

26
50

29

A14

28

A13

27

A8

26

A9

25

A11

24

PRD#

23

A10

22

PCE#

21

AD7

VD A17

4.7K

4.7K

4.7K

4.7K

R241

R240

R242

R239

4.7K

R238

A20

R203 0R

FS0

A16
A15
A14
A13
A12
A11
A10
A9

16Mb FLASH

PWR#

VP
UNLOCK

A19
A18
A8
A7
A6
A5
A4
A3
A2

C231
102

HSYNC

VCC

U214

8/16Mb_FLASH(TSOP48)

1

A15

2

A14

3

A13

4

A12

5

A11

6

A10

7

A9

8

A8

9

A19

10

A20

11

WE

12

RESET

13

VPP

14

WP/ACC

15

RY/BY

16

A18

17

A17

18

A7

19

A6

20

A5

21

A4

22

A3

23

A2

24

A1

+12V A+12V

R286
330R

R289

4.7K

R288

2.2K

R291

2.2K

D15/A-1

AGND

BYTE

48

A16

47
46

Vss

45
44

D7

43

D14

42

D6

41

D13

40

D5

39

D12

38

D4

37

Vcc

36

D11

35

D3

34

D10

33

D2

32

D9

31

D1

30

D8

29

D0

28

OE

27

Vss

26

CE

25

A0

R287
33R

V312
8050D

A+12V

R290
1K

V313
8050D

PRD#
GND
PCE#

GND
A0
AD7

AD6

AD5
AD4

VD

AD3
AD2

AD1

AD0

A1

Y3

R217
75R/1%

Y4

R219

75R/1%

Y5

R220

75R/1%

Y6

R221

75R/1%

VCC

C255
104

C257
47pF

C259
47pF

C261
47pF

L212

1.8uH

L213

1.8uH

L214

1.8uH

C253
47pF

VCC

L210

1.8uH

VCC

VCC

C256
104

VD220

C254

VD222

C258
47pF

VD223

C260
47pF

C262
47pF

C277
104

用于 视 频 输 出

47pF

C278
104

CVBS

SY

SC

R/V/SY

L235

Lt

FB

C2001

102

L236

Rt

FB

C2002

102

SPDIF

R233
75R

C2004

101

SY

SC

C2005

VCC

VD224

JK202A

2

1

S-VIDEO

101

VSYNC

R#

L#

L239
FBSMT

L240
FBSMT

L241

R/V/SY

FBSMT

CVBS#

C2003

104

AGND

L237 FCM

L238

L#

R#

R282 120R

R283
91R

CVBS

4 3

R285
75R

V311
8050D

C2007
104

JK203

1

A(B)OUT

3

FCM

AGND

A(A)OUT

5

RETURN

7

BLUE I/O

9

RETURN

11

GREEN I/O

13

RETURN

15

RED I/O

17

RETURN

19

V-OUT

21

GND

VJS3921

R284

2.2R

VCC

A(B)IN
A-COM

A(A)IN

FUNC SW

CONT

RETURN

BLK I/O

TRTURN

V-IN

JK201

1

2

3

4

5

6

RCA-407

JK202B
S-OUT

5

CVBS#

C2006

101

NC

6

A+12V

2

4

6

8

C2008

10
12

104

14

16

18

20

AGND

5.2.4 DECODE&SERVO Board 4

7

5.2.5 KEY SCAN Board

U403

K401

K402

K403

DST

DCK

DAT

R416

4.7K
R417

4.7K
R418

4.7K

VCC

IR

C405

104

R415
100

VCC

- 84 -

1

D401

A

IN4148

K

2

IR
VCC
GND
DST
DCK
DAT

3

1
2

TC407

100uF/16V

1
2
3
4
5
6

HS0038A2

XS401
XS06

5.2.6 MIC Board

R633
10R1/6W

+9V +9VA -9V -9VA

TC615

100U/25V

+5V

R623

- 85 -

MIC602

7
6
5
4
3
2
1

4.7k

DET

OK

C625
102

C606
102

C604
104

L602
FBSMT

TC601

47U/16V

R601

22K

TC605

47U/16V

R603
560R

C603
103

R607

1K

R605
10K

2
3

C601
104

R609 33K

C605 101

-9VA

8 4

+9VA

U601A
4558

1

47U/16V

TC603

R619
1K

R632
10R1/6W

TC616

100U/25V

C602
104

DET

R613

C607 101

6

5

33K

TC613

47U/16V

U601B
4558

7

R626
1K

C619
104

OK

L601
FBSMT

VR602

R612

2

6.8K

10K

1 3

OK
GND
+9V

-9V
+5V

6
5
4

XS601

3

XS06

2
1

5.2.7 POWER Board

L505

TC503

470uF/16V

TC505
1000uF/10V

TC512
47uF/50V

10uH/1A

L507 10uH/2A

R506

330

U503

LM431A

TC504
470uF/16V

1000uF/10V

R507
1K

C515
104

K

R

A

TC506

R509
10K

R508

3.3K

C508
104

C510
104

D509
1N4007

D513
1N4007

2

D503

K

D502
1N4007

D501

1N4007

1N4007

A

1

D504

1N4007

!

- 86 -

U501

L501

!

!

!

VIPER22

BC501
~275V 104

R501
680K 2W

TC501

47uF/400V

L503

5

R503
39K/2W

C503
101/1KV

FB

8

D

D6D7D

VDD

FB

S

S

2

1

C502

103/1KV

D505

HER107

R505

D506
HER105

10ohm
TC502

C504

47uF/50V

104

R512

9.1K

4
3

C506
473

!

10T501

1

2

3
4

5

EEL19H

9
8

6

!

U502
2501

4
3

D508

HER105

D510

SR560

7

D511
HER105

1
2

!

BCN502

SW-SPST

!

BCN501
~220V

2

BCN501
~220V

F501

T1.6A/250V

1

!

BC503

~400V 221

+5V

R517
330R

+9V

+5V

+3.3V

TC510
1000uF/10V

R511

330R/1W

100uF/16V

GND

-9V
+9V

+9V

-9V
GND
+5V
GND
+3.3V
GND

TC513

1
2
3
4
5
6
7

1
2
3
4

ZD502

9.1V/1W

CN502
XS07

-9V

CN501
XS04

Chapter six BOM List

MATERIAL

CODE

DV112SI(RU)SILVER

DECODE BOARD: 2DV112S-0 1.4/Ver2.1

0090001 SMD RESISTOR 1/16W 0O±5% 0603 R331,R2161,R203,R2107

0090214 SMD RESISTOR 1/16W2.2MO±5% 0603 R281

0090272 SMD RESISTOR 1/16W 1O±5% 0603 R321

0090002 SMD RESISTOR 1/16W 2.2O ±5% 0603 R284

0090106 SMD RESISTOR 1/16W 4.7O±5% 0603 R206,R301,R302

0090006 SMD RESISTOR 1/16W 75O±5% 0603 R233,R285

0090005 SMD RESISTOR 1/16W 33O±5% 0603 R255,R263,R264,R267,R268,R287

0090244 SMD RESISTOR 1/16W 91O±5% 0603 R283

0090221 SMD RESISTOR 1/16W 120O±5% 0603 R282

0090009 SMD RESISTOR 1/16W 330O±5% 0603 R286,R322

0090014 SMD RESISTOR 1/16W 1K±5% 0603 R253,R259,R260,R290,R2103,R2117~R2120

0090249 SMD RESISTOR 1/16W 510O±5% 0603 R214

MATERIAL NAME SPECIFICATIONS LOCATION

0090017 SMD RESISTOR 1/16W 2.2K±5% 0603 R288,R291

0090018 SMD RESISTOR 1/16W 3.3K±5% 0603 R2104

0090019 SMD RESISTOR 1/16W 4.7K±5% 0603 R238~R242,R289,R274,R2130,R2134

0090020 SMD RESISTOR 1/16W 5.1K±5% 0603 R324

R252,R311,R313,R328~R330,R333,R2106,R

0090023 SMD RESISTOR 1/16W 10K±5% 0603

0090187 SMD RESISTOR 1/16W 12K±5% 0603 R327

0090024 SMD RESISTOR 1/16W 15K±5% 0603 R223,R334

0090025 SMD RESISTOR 1/16W 20K±5% 0603 R326

0090255 SMD RESISTOR 1/16W 24K±5% 0603 R2132,R2156

0090027 SMD RESISTOR 1/16W 27K±5% 0603 R335,R336

0090189 SMD RESISTOR 1/16W 30K±5% 0603 R2129,R2133

0090034 SMD RESISTOR 1/16W 100K±5% 0603 R224,R246,R308,R310,R2101,R2111,R2112

0090197 SMD RESISTOR 1/16W 150K±5% 0603 R319,R320

0100019 SMD RESISTOR NETWORKS 1/16W 33O±5% 8P RN201

0090316 PRECISION SMD RESISTOR 1/16W 75O±1% 0603 R217,R219,R220,R221

2108,R2109,R2105,R2131,R2135,R303,R325
,R254,R314

0090231 PRECISION SMD RESISTOR 1/16W 680K±1% 0603 R317,R318

0090319 PRECISION SMD RESISTOR 1/16W 750K±1% 0603 R227

- 87 -

MATERIAL

CODE

02604379 CD CD11 16V10U±20%5×11C5 BELT

02600029 CD CD11 16V47U±20%5×11 C5 BELT

MATERIAL NAME SPECIFICATIONS LOCATION

TC201,TC202,TC217,TC225,TC226,TC240,TC
241
TC203~TC206,TC211,TC237,TC238,TC302,T
C303

02601889 CD CD11 16V100U±20%6×12 C5 BELT TC214,TC304,TC308,TC309

02601829 CD CD11 25V100U±20%6×12 C5 BELT TC215,TC216

02601819 CD CD11 16V220U±20%6×12 C5 BELT TC207,TC208,TC212,TC301,TC305,TC235

02606509 CD CD11 10V1000U±20%8×14 C5 BELT TC245

0310043 SMD CAPACITOR 50V 22P±5% NPO 0603 C222,C275,C276

0310045 SMD CAPACITOR 50V 47P±5% NPO 0603 C253,C254,C257,C258,C259~C262

0310047 SMD CAPACITOR 50V 101±5% NPO 0603 C2004,C2005,C2006

0310596 SMD CAPACITOR 50V 121±20% X7R 0603 C263~C266,C2111,C2114

0310051 SMD CAPACITOR 50V 331±5% NPO 0603 C318,C319

0310052 SMD CAPACITOR 50V 391±5% NPO 0603 C233

0310066 SMD CAPACITOR 50V 102±10% X7R 0603

C223,C231,C272,C2001,C2002,C2116,C313~
C315

0310067 SMD CAPACITOR 50V 152±10% X7R 0603 C217

0310068 SMD CAPACITOR 50V 222±10% X7R 0603 C221,C307,C310,C2112,C2115

0310071 SMD CAPACITOR 50V 682±10% X7R 0603 C294

0310072 SMD CAPACITOR 50V 103±10% X7R 0603 C215

0310201 SMD CAPACITOR 50V 153±10% X7R 0603 C316

0310055 SMD CAPACITOR 16V 333±10% X7R 0603 C225

0310056 SMD CAPACITOR 16V 473±10% X7R 0603 C219,C220

C216,C224,C227,C230,C235,C245,C255,C25
6,C268,C269,C270,C271,C277,C278,C280,C
283,C301,C302,C303,C304,C305,C306,C317,
C326,C327,C345,C2003,C2007,C2008,C226,

0310207 SMD CAPACITOR 50V 104 ±20% X7R 0603

C236,C237,C238,C239,C240,C241,C242,C24
3,C244,C214,C228,C234,C246,C247,C248,C
249,C250,C251,C252,C273,C296,C311,C312,
C207,C208,C209,C210,C211,C212,C213,C32
0　　　　①

C216,C224,C227,C230,C235,C245,C255,C25
6,C268,C269,C270,C271,C277,C278,C280,C
283,C301,C302,C303,C304,C305,C306,C317,
C326,C327,C345,C2003,C2007,C2008,C226,

0310543 SMD CAPACITOR 50V 104±10% X7R 0603

C236,C237,C238,C239,C240,C241,C242,C24
3,C244,C214,C228,C234,C246,C247,C248,C
249,C250,C251,C252,C273,C296,C311,C312,
C207,C208,C209,C210,C211,C212,C213,C32
0　　　　①

0310234 SMD CAPACITOR 16V 105 +80%-20% Y5V 0603 C201~C205

0390355 SMD INDUCTOR 4.7UH±10% 1608 L303,L306

0390096 SMD INDUCTOR 1.8UH±10% 1608 L210,L212~L214

- 88 -

MATERIAL

CODE

MATERIAL NAME SPECIFICATIONS LOCATION

0390452 SMD MAGNETIC BEADS PZ3216D121 L222

0390444 SMD MAGNETIC BEADS PZ2012U121 L201,L215,L216,L220,L221,L226

L205,L235,L236,L206,L208,L227,L228,L230,

0390095 SMD MAGNETIC BEADS FCM1608K-221T05

L231,L232,L233,L239,L240,L241,L304,L309,
L311,L234,L237,L238,R229

0390385 SMD INDUCTOR 22uH±10% 2012 L207
0700007 SMD DIODE 1N4148 VD201,VD205,VD206　　　　②
0700001 SMD DIODE LS4148 VD201,VD205,VD206　　　　②
0700002 SMD DIODE LL4148 VD201,VD205,VD206　　　　②

0700056 SMD DOUBLE DIODE MMBD4148SE SOT-23 VD220,VD222~VD224

0570003 DIODE 1N4001 VD301,VD302

07803199 TRIODE SS8550 TO-92 BELT V306~V309

0780085 SMD TRIODE 8050D V311,V312,V313

0780197 SMD TRIODE C1815 Q205,Q206,Q212

0780198 SMD TRIODE 2SA1015 Q211,Q218,Q219

0780040 SMD TRIODE 3904(100-300) SOT-23 V305,V310

0780193 SMD TRIODE 2SK3018 V303,V304

0780115 SMD TRIODE 2SB1132 V301,V302
0880768 IC C4558 SOP U219　　　　③
0881742 IC F4558 SOP U219　　　　③
0881226 IC RC4558D SOP U219　　　　③

0882262 IC K4S641632H-TC60 TSOP U206

0882150 IC 24CC02A SOP U202

0882293 IC MT1389XE(D) QFP U201

08828028 IC AMS5888 U301　　　　④

0882802 IC AM5888S HSOP U301　　　　④

CMETAL OXIDE FILM

0960020

RESISTORSTAL

27.00MHz 49-S X201

OSCILLATOR

1633097 PCB 2DV112S-0

1940022 SOCKET 4P 2.0mm XS203

1940094 CABLE SOCKET 24P 0.5mm SMD SUBMIT MEET WITH CLASP XS301

1940024 SOCKET 5P 2.0mm XS302

1940005 SOCKET 6P 2.0mm XS303,XS304,XS201

1860029 SCART SOCKET SCART-01 JK203

1910129 TERMINAL SOCKET

SA-001-012 BLACK IRON PIECE,SCREEN­SHIELDED

- 89 -

JK202

MATERIAL

LIGHT TOUCH RESTORE

SWITCH

CODE

MATERIAL NAME SPECIFICATIONS LOCATION

1910140 TERMINAL SOCKET AV4-8.4-5G-5 BLACK JK201

DV112SI(RU)SILVER

MAIN PANEL: 5448311 1.0/Ver4.0

5232805 SOFT SPONGE SPACER 6×6×2.5 DOUBLE-FACED,HARD

0000009 CARBON FILM RESISTOR 1/6W100O±5% R415

0090023 SMD RESISTOR 1/16W 10K±5% 0603 R416,R417,R418

0570006 DIODE 1N4148 D401

1340003

HORIZONTAL 6×6×1 K401~K403

0200139 PORCELAIN CAPACITOR 50V 104 +80%-20% 5mm C405

0260206 CD CD11C 10V100U±20%5×7 2 TC407

2360016 IR SENSOR HS0038B3V U403

2100010 LEAD F0.6 SHAPED 5mm JP401

2121509 FLAT CABLE 6P200 2.0 2 PIN,WITH L NEEDLE,REVERSE XS401

1563482 PCB 4911S-1

DV112SI(RU)SILVER

OK BOARD: 1.1/3.0 5448518

0090012 SMD RESISTOR 1/16W 560O±5% 0603 R603

0090014 SMD RESISTOR 1/16W 1K±5% 0603 R607,R619,R626

0090026 SMD RESISTOR 1/16W 22K±5% 0603 R601

0090019 SMD RESISTOR 1/16W 4.7K±5% 0603 R623

0090021 SMD RESISTOR 1/16W 6.8K±5% 0603 R612

0090023 SMD RESISTOR 1/16W 10K±5% 0603 R605

0000118 CARBON FILM RESISTOR 1/6W10O±5% SHAPED 7.5 R632,R633

0090028 SMD RESISTOR 1/16W 33K±5% 0603 R609,R613

0260025 CD CD11 16V47U±20%5×11 2 TC601,TC603,TC605,TC613

0260040 CD CD11 25V100U±20%6×12 2.5 TC615,TC616

0310047 SMD CAPACITOR 50V 101±5% NPO 0603 C605,C607

0310066 SMD CAPACITOR 50V 102±10% X7R 0603 C606,C625

0310072 SMD CAPACITOR 50V 103±10% X7R 0603 C603

0310207 SMD CAPACITOR 50V 104 ±20% X7R 0603 C601,C602,C604,C619

0390095 SMD MAGNETIC BEADS FCM1608K-221T05 L601,L602
0881743 IC F4558 DIP U601　　　　⑤
0881227 IC RC4558P DIP U601　　　　⑤
0880445 IC 4558C DIP U601　　　　⑤

- 90 -

MATERIAL

CODE

MATERIAL NAME SPECIFICATIONS LOCATION

2121082 FLAT CABLE 6P220 2.0 2 PIN,WITH L NEEDLE,REVERSE XS601

2100010 LEAD F0.6 SHAPED 5mm JP601,JP602,JP603

1980048 MIC SOCKET ST-403-070-100 MIC602

0160184 ROTATED POTENTIOMETER WH09JTC1Z11-A10K-F30 VR602

1564180 PCB 6112S-1

DV112SI(RU)SILVER

POWER BOARD: 1.1/5.1

0260341 CD ZT 400V22µ±20%f16×20 7.5 TC501

2300040 FUSE @T1.6AL 250V WITH LEAD FEET 3C F501

0200224 PORCELAIN CAPACITOR 1000V 103 +80%-20% 7.5mm C502

0010135

METAL OXIDE FILM
RESISTOR

2W39K±5% SHAPED FLAT 15×9 R503

0410010 CHOKE COIL VERTICAL 10UH 1A 5mm L505

0410011 CHOKE COIL VERTICAL 10UH 2A 5mm L507
1080032 PHOTOELECTRIC COUPLER @HS817 VDE U502　　　　⑥
1080034 PHOTOELECTRIC COUPLER @PC817 VDE U502　　　　⑥

0680010 SCHOTTKY DIODE SR560 DO-27 D510

TEMETAL OXIDE FILM

0210207

RESISTORLENE

@275V 104±20% 15mm VDE BC501

CAPACITOR

0200361 CERAMIC CAPACITOR @CT81 250VAC221±20% 10 CQC BC503　　　　⑦
0200362 CERAMIC CAPACITOR @CT81 250VAC221±10% 10 CQC BC503　　　　⑦

0460549

SWITCH POWER
TRANSFORMER

@BCK-19-0179 UL T501

1000043 POWER GRID FILTER @UT-20 40mH±20%10×13 UL L501

1940045 SOCKET 2P 8.0mm 2# BCN501,BCN502

1940022 SOCKET 4P 2.0mm CN502

1940027 SOCKET 2P 2.0mm CN501

0881933 IC VIPER22A DIP8 U501

3870115

GROUND CHIP OF POWER
BOARD

AB903 G501,G502

00002169 CARBON FILM RESISTOR 1/4W10K±5% BELT R507

00002159 CARBON FILM RESISTOR 1/4W9.1K±5% BELT R512

00001729 CARBON FILM RESISTOR 1/4W75O±5% BELT R505

00001899 CARBON FILM RESISTOR 1/4W510O±5% BELT R506

00102389

METAL OXIDE FILM
RESISTOR

1W 22O±5 ％ BELT R511

00100159 METAL FILM RESISTOR 1/4W10K±1% BELT R509,R508

- 91 -

MATERIAL

CODE

MATERIAL NAME SPECIFICATIONS LOCATION

00700019 HIGH VOLTAGE RESISTOR 1/2W680K±5% BELT R501

03901549

MAGNETIC BEADS
INDUCTOR

RH-357508 BELT L503

05700139 DIODE HER105 BELT D506,D508,D511

05700149 DIODE HER107 BELT D505

05700059 DIODE 1N4007 BELT D501~D504

05800549

VOLTAGE REGULATOR
DIODE

9.1V 1W BELT ZD502

02001389 PORCELAIN CAPACITOR 50V 104±20% 5mm BELT C504,C508,C510,C515

02001369 PORCELAIN CAPACITOR 50V 473±20% 5mm BELT C506

02606849 CD CD11T 50V47u±20%6×12 C5 BELT TC502,TC512

00001859 CARBON FILM RESISTOR 1/4W330O±5% BELT R517

02606879 CD CD11T 10V1000u±20%8×16 C5 BELT TC505,TC506,TC510

02606859 CD CD11T 16V100u±20%6×12 C5 BELT TC513

02606869 CD CD11T 25V220U±20%8×12 C5 BELT TC503,TC504
08805539 IC LM431ACZ TO-92 BELT U503　　　　⑧
08805819 IC TL431C TO-92$ U503　　　　⑧
08808009 IC 431L TO-92 BELT U503　　　　⑧
08820419 IC MIK431C TO-92 BELT U503　　　　⑧

1564261 PCB @5241-0 UL

2100003 LEAD F0.6 SHAPED 7.5mm JP501,JP503

2100010 LEAD F0.6 SHAPED 5mm JP502,JP504

2100004 LEAD F0.6 SHAPED 10mm D509,D513

DV112SI(RU)SILVER

REMOTE CONTROL: 5471754 1.0/

0310048 SMD CAPACITOR 50V 151±5% NPO 0603 C802,C803

0630009 EMISSION PIPE TSAL4400 LED801
0700007 SMD DIODE 1N4148 D801~D803　　　　⑨
0700001 SMD DIODE LS4148 D801~D803　　　　⑨
0700002 SMD DIODE LL4148 D801~D803　　　　⑨

0780130 SMD TRIODE STC3265 Q801
0880220 IC PT2222 SOP U801　　　　⑩
0882379 IC S0102B SOP U801　　　　⑩

0970003 CERAMIC RESONATOR 455E X801

4000038 SELF-TAPPING SCREW PB 2.3×6 COLOR ZINC

0090272 SMD RESISTOR 1/16W 1O±5% 0603 R801

- 92 -

MATERIAL

CODE

MATERIAL NAME SPECIFICATIONS LOCATION

1564324 PCB 8516SI-3

3031875

3041399

3051319

3051273

SURFACE CASING OF
REMOTE CONTROL

BOTTOM CASING OF
REMOTE CONTROL

BATTERY CASE DOOR OF
REMOTE CONTROL

GLASS OF REMOTE
CONTROLLER

RC026-07R BLACK

RC026 BLACK 2#

RC026 BLACK 2#

RC026 MING PURPLE

3850124 ANODE SPRING RC026

3850125 CATHODE SPRING RC026

3850126 ANODE/CATHODE SPRING RC026

4631052

CONDUCT GLUE OF
REMOTE CONTROL

RC026-01R 4#

5070070 GLUE BAG 85×250

DV112SI(RU)SILVER

PROGRAM FLASH ROMDV112SIRU-0A(16M) 0911755

0881650 IC 29LV160BE-70PFTN TSOP U214　　　　⑾
0881651 IC M29W160EB 70N6 TSOP U214　　　　⑾

- 93 -

DV123SI Service Manual

DV123SI derives from the model DV112SI, and its function is the same with that of DV112SI, only

the appearance is changed on the basis of DV112SI. Decode board: totally the same with the firmware

of DV112SI, only software is different; power board: adopts that of DV317SI; panel adopts the traditional

LED display; MIC board is with single-path microphone input function, but without headphone output.

The block diagram of the player is the same with that of DV112SI.

7.1.1 PCB composition figure of the player

PCB board block diagram of the player is show as in the following figure 7.1.1.1:

Power board

5317SI-1

CN501

BCN501

AC220V

Subsidiary
panel

9DV123SI-0

Loader frame Small bracket

LOAD-

LOAD+

TROUT

LOAD-

LOAD+

TROUT#

SL+

GND

SL-

TRIN

SL-

SL+

GND

TRIN#

XS307 Xs306

XS203

+12V

-12V

GND

VCC

3

2

LEDAT

LEDCK

KEY2

S1#

Main panel

LIMIT#

GND

SP+

SP-

SP-

SP+

GND

LIMIT#

Decode board

2DV112S-0

XS201

4

5

GND

LEDST

4123SI-1

Laser head

FC-

FC+

TK+

TK-

CDIOA

RFOABFGND

V20

AVCC

E

VR-CD

VR-DVD

CD-LD

MDI

HFM

DVD-LD

GND-LD

F

A

B

C

D

TK-

FC-

IOA

TK+

FC+

RFO

E

V20

GND

AVCC

MDI

HFM

CD-LD

VR-CD

VR-DVD

DVD-LD

GND-LD

XS301

6

7

IR

VCC

XS205

-9V

VCC

+9V

GND

DET

OKA

XS601

MIC board

6112S-2

Figure 7.1.1.1 PCB board block diagram of the player

- 94 -

7.2.1 Panel control circuit

Panel control circuit block diagram is shown in the figure 7.2.1.1:

LED

Seg

S2

S1

KEY1~2

GND

LEDST

VCC

Figure 7.2.1.1 Control panel circuit block diagrm

KEY
K401 K403

IR

Remote control
receiver

S1#

KEY2

Subsidiary
panel

9DV123SI-0

LEDAT

Grid

PT6961

LEDCK

XS401

2. Working principle

Button function realization: when users are operating the machine, button matrix circuit will produce

a button function code that transmits to the main CPU inside decode chip, CPU performs the

corresponding switch to the function module inside system, and a signal produces at the same time to

control OSD and panel display and makes the relevant display.

Panel display drive: when serial data signals sent from decode chip is transmitting to panel IC

(PT6961), IC performs LED drive according to information dent from decode, and displays the

corresponding content (controlled by software).

3. Definition and function of main jacks of panel

XS401 is connected to decode board, and the jack that communicates with decode system, in

which IR is remote control signal output pin, +5V is panel power supply.

LEDAT is data transmission pin (dual direction) and controlled through LEDST, LEDCK is working

clock signal input displayed by panel.

Main trouble of panel: button has no function, function disorder, LED display is abnormal, no remote

control, etc.

7.2.2 MIC circuit

MIC (6DV123SI-0) circuit block diagram is shown in the figure 7.2.2.1:

U603A amplifying

MIC socket

3

1

1

Potentiometer

6

2

U603B amplifying

7

5

XS601

Figure 7.2.2.1 MIC circuit bloc diagram

- 95 -

7.3.1 PCB board

1. Surface layer of KEY SCAN Board

K401

LED402

VGO

TC403

K402

K403

KEY2

XS402

S1#

4DV123SI-0

DVD 2005/04/05

LEI LED401

U402

TC401

IR

DST

GND

DCK

DAT

VCC

FS0

XS401

- 96 -