Daewoo DP-A43D1D-AN, DP-A62D1D-LS, DP-A61D1D-LS, DP-A61D1S-BJ, DP-A61D1S-LS Service Manual

...

S/M No. : VD2113TET0

✔ Caution :

In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information,please refer to PPL(Parts Price List) in Service Information Center (http://svc.dwe.co.kr).

DAEWOO ELECTRONICS Corp.

Sep. 2003

http : //svc.dwe.co.kr

Service Manual

VE 2.0 DVD PLAYER

* Refer to the Model list of page 82.

MODEL : DP-A61D1D Series

DP-A61D1S Series

DP-A62D1D Series DP-A62D1S Series DP-A43D1D Series DP-A64D2D Series

OPEN/CLOSE

PLAY

PAUSE/ STEP STOP PREV NEXT

EXTERNAL VIEWS.......................................................................................................2

1. FRONT VIEWS ......................................................................................................................................... 2

2. REAR VIEWS ............................................................................................................................................2

SPECIFICATIONS.........................................................................................................3

CIRCUIT DIAGRAM..................................................................................................................4

CIRCUIT OPERATIONAL DESCRIPTION .............................................................................16

TROUBLE SHOOTING...........................................................................................................35

WAVEFORMS .........................................................................................................................49

COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW.............................................56

DISASSEMBLY.......................................................................................................................60

ELECTRICAL PARTSLIST.....................................................................................................71

CONTENTS

1. FORNT VIEWS

( Refer to the Model list of page

)

1)DQD-2113/DP-A61D1D Series(PANEL: 1, 2CH)

2)DQD-6113/DP-A61D1D Series(PANEL: 1, 5.1CH)

3)DVD-323/DVD-363/DP-A62D1D Series(PANEL:2, 2/5.1CH)

4)DVD-223/DVD-263/DP-A43D1D Series(PANEL:3, 2/5.1CH)

5)DVD-423/DVD-463/DP-A64D2D Series(PANEL:4, 2/5.1CH)

2. REAR VIEWS

1) PAL System Series

2) NTSC System Series

EXTERNAL VIEWS

EURO AV

DIGITAL AUDIO OUT

AUDIO OUT (5.1 CH)

AUDIO OUTVIDEO OUT

DIGITAL AUDIO OUT

AUDIO OUT (5.1 CH)

AUDIO OUT (2 CH)

VIDEO OUT

OPEN/CLOSE

PLAY

PAUSE/ STEP STOP PREV NEXT

65MM Model

43MM Model

65MM Model

43MM Model

65MM Model

43MM Model

DIGITAL AUDIO OUT

AUDIO OUT (5.1 CH)

AUDIO OUT (2 CH)

VIDEO OUT

SPECIFICATIONS

1. Prodcut features

- Over 500 resolution of horizontal frequency

- Dolby Digital decoding

- 5.1ch Analog signal output

- DTS output

- Screen zoom function

- Special playback function(slow playback/fast playback)

- NTSC Type : Component output(Y, Pb, Pr)

- PAL Type : RGB output

- Progressive SCAN (NTSC Only)

2. Specifications

Audio Dolby Digital Analog 5.1ch output and digital output

DTS Digital output

Convenience Screen zoom function OK

Special playback function OK MP3 playback function OK

Connecting terminal Video terminal Composite terminal : 1 unit

Component terminal : 1 unit(NTSC only) S-Video terminal : 1 unit

Audio terminal 2ch terminal : 1 unit

5.1ch terminal : 1 unit Optical terminal : 1 unit Coaxial terminal : 1 unit

Size 420mm x65mm x250.3mm (65MM Model)

420mm x42.8mm x257.2mm (43MM Model)

3. Playable Disc

Disc type Playable Restriction

DVD Possible Region 2 or Region ALL

Video CD Possible Version 1.0/1.1/2.0, SVCD

CD Possible PCM or dts

CD-G Possible Audio with graphic

CD-ROM Possible MP3/JPEG File

CD-R Possible Video-CD/CD/MP3/JPEG

CD-RW Possible Video-CD/CD/MP3/JPEG

DVD-R Possible DVD Video

DVD-RW Possible DVD Video

DVD+RW Possible DVD Video

DVD-ROM Impossible

DVD-RAM Impossible

Photo CD Impossible

CIRCUIT DIAGRAM

POWER SUPPLY SCHEMATIC DIAGRAM(DP-A62D1D-AN)/(65MM Mode)

CIRCUIT DIAGRAM

AUDIO (65MM)

CIRCUIT DIAGRAM

FRONT (VFD)-65MM

CIRCUIT DIAGRAM

AUDIO(43MM)

CIRCUIT DIAGRAM

AV(43MM)

CIRCUIT DIAGRAM

FRONT(43MM)

CIRCUIT DIAGRAM

DQL-1000(ALIM3351 MPEG IC)

CIRCUIT DIAGRAM

DQL-1000(RF-MOTOR_DIRIVERS)

CIRCUIT DIAGRAM

DQL-1000(FLASH, SDRAM)

CIRCUIT DIAGRAM

DQL-1000(AUDIO_DAC, VIDEO_CHANNEL)

CIRCUIT DIAGRAM

DQL-1000(SYSTEM_POWER)

CIRCUIT DIAGRAM

VE2.0 DVD-Player Series Block Diagram

2) Primary rectification and smoothing circuit

AC voltage passed through AC lnlet is rectified to Brige Rectification Diode D801 and changes to DC voltage. After that it smooths the Smoothing Condenser C806. When C806 is charged at first, Resistor R802 intercepts voltage current and protects D801, F801. Start Resistor R803, R804 supply Control IC VCC terminal with rectified DC voltage.

1. POWER SUPPLY OPERATION(220V)

1) AC input and EMI FILTER

AC inlet consists of fuse, Line Filter, X-Cap, Y-Cap, Varister. Line Filter(L801, L802), X-Cap(C803, C804), YCap(C801) belong to EMI Filter section. They decrease noise to get into and out of AC Line.

CIRCUIT OPERATIONAL DESCRIPTION

POWER SECTION

Picture 1. [AC Input section]

Picture 2 [Rectification, smoothing and starting circuit]

CIRCUIT OPERATIONAL DESCRIPTION

Picture

3 [

Snubber circuit

]

3) Snubber circuit

Snubber circuit protects speedy voltage rising between Collector and Emitter when Main Switching TR is turned off. So Collector and Emitter voltage enter into safety operation and noise is decreased. When TR is turnd off, because high reverse voltage is generated between Collector and Emitter, it is rectified to D802, smoothed to C807 and consumed to R809. C808 is Speed-Up Capacitor.

4) Switching and Control Drive Circuit

When Base of TR is charged through starting part, TR is turned on. So voltage is added to primary winding of transformer and genertaed at Base Drive. Because this voltage becomes to Positive Feedback voltage, TR is turned on again and Primary Winding of Trans is charged with electricity .

Picture 4 [Drive Circuit]

CIRCUIT OPERATIONAL DESCRIPTION

5) Costant-voltage Circuit

This circuit maintains constant voltage. When voltage is lower or higher than reference voltage(2.5V) of IC802 pin1, this circuit compensates for a loss. Base voltage of Switching TR is controlled and final voltage is regulated by increasing or decreasing Internal Diode Current of IC801.

Picture

5 [

Costant-voltage Circuit

]

6) Secondary rectification circuit

This circuit generates DC voltage needed to each terminal. It is rectified half-wave by D821, passes through Electrolytic Condenser C821 and generates the rectified DC voltage. DC voltage passes through L821, C829 of LC filter and is removed of Ripple and Noise. The other terminal operation is same like this.

Picture

6 [

Secondary rectification circuit

]

CIRCUIT OPERATIONAL DESCRIPTION

7) Output terminal When power is turned off at power applied status, High signal (+3.3V) is applied to Q804 Base terminal and GND is applied to Q803 Base terminal therefore +5VD is not applied to Q803 emitter terminal and only MVCC(+5V) is applied to Q803 collector terminal line. When power is turned on, Low signal(0V) is applied to Q804 Base terminal and Q804 is shorted. At this time, Q803 Base terminal becomes High status and Q803 is activated. Therefore Q803 outputs +5VD to Emitter terminal.

2. POWER SUPPLY BLOCK DIAGRAM

Picture

7 [

Output terminal

]

CIRCUIT OPERATIONAL DESCRIPTION

FRONT SECTION

1. VFD DRIVER

1) Overview IC710 implements following functions by serial communication with MICOM depending on the software.

* CMOS Technology * Key Scanning(6 x 4 matrix) * Multiple Display Mode : (11 segments, 11 digits to 16 segments, 6 digits) * 8-step Dimming circuitry * LED Ports Provided(4 channels, 20mA max.) * 4-Bits general Purpose Input Ports Provided * Serial Interface for Clock, Data Input, Data Output, Stobe Pins * No External Resistors Needed for Driver Outputs

2) Input/output port description

* Input : Receive the serial data from MICOM when rising edge on Shift clock. And, receive the key of tact switch. * Output : Output the serial data to MICOM when falling edge on Shift clock. And, display it through digitron with

input data.

3) Internal BLOCK DIAGRAM

CIRCUIT OPERATIONAL DESCRIPTION

2. Front Part Operational Description

1) KEY SCAN & VFD Driver(PT6312) Interface

2) Operation Description * If user presses KEY while IC01(ALI_M3351_2) implements KEY SCAN using VFD DRIVER(PT6312), the

KEY input DATA go to IC01 by SERIAL Communication, then IC01 analyzes and processes the input DATA.

* Implement the operation according to the input command and display the processing status on the VFD

through PT6312.

VFD DISPLAY

VFD DRIVER

(PT6312)

KEY MATRIX

(FRONT TACT SWITECH)

POWER OPEN/CLOSE PAUSE/STEP

MICOM INTERFACE

KEY MATRIX

(TACT SWITCH OF 4 DIRECTION)

PLAY

STOP

FFREW

KEY MATRIX

(SHUTTLE RING)

REW FF

4) Serial Communication Format

CIRCUIT OPERATIONAL DESCRIPTION

AUDIO SECTION

1. 5.1 CH AUDIO DAC IC(IB01) : PCM1606E

1) Overview 24-BIT, 192-kHZ SAMPLING 6-CHANNEL ENHANCED MULTILEVEL DELTA-SIGMA DIGITAL-TO-ANALOG CONVERTER

2) Functions

It, as a 5.1CH D/A converter IC, transforms Digital signals to Analog signals by receiving 3 CLOCK (System CLOCK, Shift CLOCK, Left and Right CLOCK) and 3 DATA from MPEG DECODER. Each 3 DATA associates to 2 CHANNELS.

->DATA1 : Main L.R CHANNEL

->DATA2 : Surround L.R CHANNEL

->DATA3 : Center, Woofer CHANNEL During Downmix, it receives only DATA1 from MPEG DECODER.

cf) Downmix : Sound mixing method using 2 CH when the user doesn't have 6 CH amps or speakers but only have 2

CH.

3) Internal Block Diagram

CIRCUIT OPERATIONAL DESCRIPTION

2. 2CH AUDIO DAC IC(IB02) : PCM1748KE

1) Overview 24-BIT, 96-Khz sampling Enhanced multilevel Delta-sigma Digital-to-Analog Converter

2) Functions

It, as a 2CH D/A CONVERTER IC, receives 3 CLOCK and 1 DATA from MPEG DECODER and 3 MODE control signal from MICOM, and then outputs Analog signal of L/R Channel.

* MD : Mode Control Data Input * MC : Mode Control Clock Input * ML : Mode Control Latch Input * BCK : Audio Data Bit Clock Input * LRCK : L-Channel and R-Channel Audio Data Latch Enable Input * SCK : System Clock Input * DATA : Audio Data Digital Input

3) Internal Block Diagram

3. OP-AMP IC (IC303, IC304, IC305) : NJM4580M

1) Overview

Dual operational amplifier

2) Functions

It amplifies Analog audio signal from D/A Converter IC. Each associates to and amplifies 2 channels, and then outputs 5.1 Channel to JK300.

(IC303 : Main L.R, IC304 : Surround L.R, IC305 : Center, subwoofer).

cf) Using 2CH Audio DAC IC (IB02) model outputs 2 Channels to JK101 or JK301 using only OP-AMP IC (IC 303).

3) Internal Block Diagram

CIRCUIT OPERATIONAL DESCRIPTION

OUTPUT

JK101 OR JK301

4. General Audio Operation for 5.1CH

1) Overview

It receives CLOCK and DATA from MPEG DECODER(IC01) and transforms Digital signal to Analog signal at AUDIO D/A CONVERTER(IB01) then, amplifies Analog signal(IC303, IC304, IC305)and outputs to 5.1 CH Jack(JK300) and 2CH Jack(JK101 or JK301). Receive the digital signal from MPEG DECODER(IC01) and match impedance and then, output the digital signal through the coaxial jack (JK302) and the optical Jack (JK303).

2) 5.1CH Audio Block Diagram

5. General Audio Operation for 2CH

1) Overview

It receives CLOCK and DATA MODE CONTROL signal from MPEG DECODER(IC 01) and transforms Digital signal to Analog signal at AUDIO D/A CONVERTER(IB 02) then, amplifies Analog signal(IC303) and outputs to 2CH Jack(JK101 or JK301). Receive the digital signal from MPEG DECODER(IC01) and match impedance and then, output the digital signal through the coaxial jack (JK302) and the optical Jack (JK303).

2) 2CH Audio Block Diagram

+ 58 hidden pages

Daewoo DP-A43D1D-AN, DP-A62D1D-LS, DP-A61D1D-LS, DP-A61D1S-BJ, DP-A61D1S-LS Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual