Page is loading ...
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
1
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
2
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
65MM Model
65MM Model
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
82
3
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
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.
16
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), Y-
Cap(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]
17
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]
18
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
]
19
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
]
/