Daewoo DHD-4000D User manual

S/M No. : VDHA61PEN0
✔ 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.
Nov. 2003
http : //svc.dwe.co.kr
Service Manual
DVD HDD Disk Recorder
MODEL : DHD-4000D

SPECIFICATIONS.........................................................................................................2
DISASSEMBLY ORDER...........................................................................................................9
REPAIRE.................................................................................................................................10
BLOCK DIAGRAM .................................................................................................................27
SCHEMATICS.........................................................................................................................32
COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW.............................................44
WAVE FORMS ........................................................................................................................45
ELECTRICAL PARTSLIST.....................................................................................................48
1
CONTENTS

2
SPECIFICATIONS
PVR DVD Combo for EUROPE DHD-4000D
SECTION PVR/DVD Combo REMARK
GENERAL
DAEWOO Model DHD-4000D
Decription PVR/DVD Combo
Target Area Europe
Mass Production 2003, End of JULY
Safety Regulation CE
Power Plug
For Europe
Operation temperature 5-35 degree C
Power Consumption
- Maximum
50 W
- Operate
35 W
- Stand-By(power off)
15 W / 6 W
Set Weight (Net)
5.5 Kg
Set Size (WxHxD) 420 x 80 x 300 (mm)
Stuffing Quantity (40ft) 1750 EA
PVR Features
HDD Specification
Drive interface ATA (IDE bus) Interface
Capacity 40 GB (1platter)
RPM 5400
Start time 8 sec ( 15 sec max )
Stop time 12 sec ( 20 sec max )
VIDEO
Video Recording Format MPEG II
Horizontal Resolution ( line input ) High : 350 lines Pass-through : Min 350 lines
Standard : 350 lines Time-shifting : Min 350 lines
Basic : 250 lines
Screen size(MPEG encoder) High : full D1 (720 x 576) Pass-through : full D1 (720 x 576)
Standard : 2/3 D1 (480 x 576) Time-shifting : full D1 (720 x 576)
Basic : 1/2 D1 (352 x 576)
Video DAC 10bit
Recording Rate (Mb/sec) 2 - 4 - 6 (Mb/sec) Time-shifting : 6 Mb/sec
Low -to- High Quality
Time-shifting buffering time 1 hour T-S and System region : about 3GB
Recording Capacity ( 40GB/20GB) High : up to 12.7/6.2 Hours
Medium : up to 22/10.7 Hours
Basic : up to 35.7/17.3 Hours
AUDIO
Audio Recording Format MPEG I Layer II - 2 channel
Analoge in/out O
Sampling Rate 44.1KHz
Audio ADC/DAC 20bit
S/N Ratio ( line input ) 65 dB weighted
Dynamic range ( line input )80 dB
Muting O

3
SPECIFICATIONS
SECTION PVR/DVD Combo REMARK
PVR Features
Broadcasting Tuner
Broadcasting System PAL/SECAM-L
Channel Selection Method PGM F/S
- Selection Knob CH (…/†), 0-9
- TV/CATV Switching -
Band VL, VH, UHF
Total Channel Number 113 Channels
- PAL/SECAM-L 104 CH(2~12, 21~69, S1~S41 , X,Y,Z)
Position Memory Number 99CH
TV/CATV Switching X
Auto Channel Setting
- Auto Search & Memory O
- Auto Channel Sorting O
- Auto Station Name Display O
Manual Channel Setting
- CH Direct Input O
- Manual Search & Memory O
- Manual Channel Clear O
- Manual Channel Align O
HRC/IRC/Standard Switching X
Manual Fine Tuning O
- Memory Available O
- E2PROM O
RF Modulation Out -
SPECIAL PLAY/REC
Time Shifting O
Forward / Reverse Search Speed 5 steps(x1.5, X4, X8, X20, X60) x 1.5 forward Digest function nomal audio out
Still Picture O
Slow O
- Variable Slow Speed ( 1/2 ,1/4 ,1/8 : 3 steps )
Repeat Play O - "A-B repeat"
"A-B" REC O - Press "REC" during Repeat Play
SYSTEM
Recorded Program Search O - next clip,last clip
REC Bit Rate Select O - By OSD menu
System information O - By OSD menu
HDD data full
- Record (Include T.REC, & OTR) Stop - Warning message
Factory set ( HDD data initialize ) O - By OSD menu(after data restore,power off)
On Screen Display
Language English ,French,German,Spanish,
Dutch,Italian,Swedish,Finnish
Letter Color refer to UIS
Blue Back refer to UIS
Super Impose Data Display O

SECTION PVR/DVD Combo REMARK
PVR Features
TIMER
Date Recognize Period 2002~2099
Number of Timer Recording 8 Events / 1 Year
Clock display method 12 Hour - AM,PM
Manual Clock Setting O
Auto Clock Setting O
Auto Daylight Saving Time O
Language selection O
Timer Recording System
- General O
- VCR Plus(G-code) O
- EPG -
One Touch Recording O
- Recording Time Display Method Recording Hours
- Maximum Time for Recording Max.10 Hours
Daily Recording O
Weekday Recording -
Weekly Recording O
Timer Recording Contents Display O
Timer Recording Contents Correct O
Method to Timer Recording -
Timer Recording Start Timing On Time - Actally, recoding faster than On time
Priority on Overlap Timer Recording Chosen by customer - Conflict message displayed on screen
Guide Setup -
Initial Partial Guide Setup O - first AC power cord input
Child Lock (Pro-Tect Plus) -
Setup (Guide Setup) -
- Partial Initial Setup -
Low Voltage Detection (LVD) -
Energy Star -
Power Failure Compensation
- duration More than 1 day
- Method time : RTC, data : memoried in EEPROM
- Available only forward.
DVD Features
DVD MODULE
Manufactruer of FEM (Front End Module) DVS
Interface BUS Interface
Opitical P/U Hitachi HOP1200
FE Chip Matsushita
BE chip type Numbers Ziva-5M/ LSI Logics
PLAYABLE DISC TYPE
DVD Type : DVD / DVD+RW / DVD+R / Yes to All
DVD-RW / DVD-R
CD Type : CD / CD-R / CD-RW Yes to All
4
SPECIFICATIONS

5
SPECIFICATIONS
SECTION PVR/DVD Combo REMARK
DVD Features
Video Format : DVD / VCD / DVD/VCD/SVCD
SVCD / MPEG 4 / JPEG
Audio Format : DVD-Audio / SACD CDDA / MP3
HDCD / CDDA / MP3 / MP3 Pro / WMA
Disc size 8cm/12cm
Regional Code 2
NTSC / PAL Discs playback O/O
VIDEO
Video output signal : NTSC / PAL / NTSC / PAL
PAL 60Hz / PAL-50Hz / SECAM for VHS
Video Digital-to-analog converter 10bit/54MHz
Progressive Scanning X
S-Video & Component or RGB : X/O
Simultaneous / Switchable
Smooth motion picture in reverse mode O
AUDIO
Audio Digital-to-analog converter 96kHz/24bit
DVD Audio Digital-to-Analog Converter X
S/N Ratio 92 dB
3D Virtual Surround for 2Ch Audio O
Dolby Digital Down Mix (5.1ch to LtRt out) O
Dolby Digital Passthrough O
DTS Digital Passthrough O
MPEG-2 Audio Passthrough X
DVD Audio Passthrough X
Dolby Digital 5.1-Ch decoding X
DTS Digital 5.1-Ch decoding X
MPEG-2 Audio decoding X
DVD Audio Decoding X
Open MP3 Compatible (pre recorded MP3 Discs) O
MP3 / MP3 Pro / WMA CD-R Playback O/X/X
AC-3/PCM data Conversion O
OSD Speaker : Configuration/Test Signal/Distance O/X/X
Dynamic range compression O
DSP Mode O
Equalizer O
PLAYBACK FEATURES
Disc access time(play ready time from drawer close press) Less than 20 sec.
Fast Scan Motion (FWD / REV) ; DVD (O/O) : x2, x20, x30, x80
Fast Scan Motion (FWD / REV) ; VCD (O/O) : x2, x12, x24
Fast Scan Motion (FWD / REV) ; CDDA (O/O) : x2, x6, x10
Slow Motion (FWD / REV) ; DVD (O/O) : x1/2, x1/4
Slow Motion (FWD / REV) ; VCD (O/X) : x1/2, x1/4 ,1/8, 1/16
Still picture/freeze frame( jitter-free : auto-switching: Field / Fr O
Frame by Frame (forward / reverse) O/O

SECTION PVR/DVD Combo REMARK
PLAYBACK FEATURES
Skip (FWD / REV) O/O
2x audio during Scan Forward -user selectable O (CD ONLY)
2x Subtitle Display O
Repeat Function (DVD) : Disc / Title / Chapter / A-B O/O/O/O
Repeat Function (CD/VCD) : Disc / Track / A-B O/O/O
Repeat Function (DVD-Audio): Disc / Track / Group O/O/O
Repeat Function (MP3/WMA) : Disc / Track / Dir. O/O/O except WMA
Program Play (DVD/VCD/DVD-Audio/CD//MP3 / WMA) DVD/VCD/CD
Random Play (DVD/VCD/DVD-Audio/CD//MP3 / WMA) CD/MP3
IntroScan ( CD/VCD/SVCD/MP3 ) (No. of Sec.) X/X/X/X
BOOK Mark function (No. of Marks) O
Time Search O
Zoom on Still / Running DVD Video (Zoom x) 1.3x, 2x Zoom (magnify)
Zoom on Still / Running VCD (Zoom x) 2X
Closed caption NTSC (DVD/VCD) X
".jpg" files playback (Thumbnail/Rotation/Slide show) X
".jpg" files playback - other (Zoom/Pan/Fade) X
".jpg" & MP3 or WMA Combination Playback X
Compatibility with Kodak Picture CD X
USER INTERFACE & OPERATION
Graphical User Interface -color selectable X
OSD languages English ,French,German,
Spanish,Dutch,Italian,Swedish,Finnish
On-screen display on/off-user selectable O
Subtitle Selection (DVD) O
Disk Type displayed OSD / Front Panel Display O/O
Screen saver On/Off (MP3 / CDDA / Stop / Still / Disc Open) O
Company LOGO DAEWOO
Resume play O
Black Level adjusment X
Display auto dimming during playback- user selectable X
PBC for VCD 2.0 or SVCD O
Dealer's lock X
Parental lock O
Picture mode selector 4x3, 6x9, letterbox O
Multi-angle playback O
Parental Edit on disks- A-B type deletion of unwanted scenes X
I nstant replay- one button push instantly plays back xx frames X
Upgradeable Flash Memory Capability O
Selectable Audio Streams (total quantity) O
Selectable Subtitle Languages (total quantity) O
Digest O (VCD Only)
Code free Method O
Service Mode Display Method O
6
SPECIFICATIONS

7
SPECIFICATIONS
SECTION PVR/DVD Combo REMARK
PVR/DVD COMMON AREA
FRONT PANEL
Operation button 18 EA
Power, DVD/VCR Mode, Play/Pause,
Stop, FR, FF, Open/Close, Setup,
Select /Enter, REC, PR +, PR -Left/
Right/Up /Down Arrow,
RECORDED PROGRAM LIST,Reset
LED Indicator 2 EA(Power, HDD operation)
Mic input O
Front A/V Jack O
REAR
Spec & Serial Number Label O (DEC's spec)
Antenna Jack Type F type : 1 Pair
- Antenna Jack Layout In : Up , Out : Down
A/V Jack Video (composite) Output 2
RGB Output (Scart Jack) 2
Audio Output/input (Analog, RCA jacks)
Digital Audio Output - Optical(DVD only)
Digital Audio Output - Coaxial(DVD only)
Power cord Type Polarized
- Cord Holder O
S-Video 1 Pair ( In & Output )
CBC control O
REMOCON
Model Name VR-F2WC
Transmission Format Mitsubishi
TV/VCR Unfied O
Multi-brand TV Control O Daewoo, Thomson, Panasonic, JVC
Battery O
BackLite -
REMARK PVR/DVD Combo SECTION
Luminous Knob -
Knob 45 keys SEE RCU KEY LIST & NAMES
ACCESSORY
Remocon O
Battery O
SCART cable(21PIN) O
RF Cable O
CBC Cable O
S-Video Cable ?
A/V Cord ?
Adaptor for power conversion X
Instruction Book O
Warning Leaflet O
Customer Guide O

SECTION PVR/DVD Combo REMARK
PVR/DVD COMMON AREA
ACCESSORY
Guarantee Sheet O
PACKING
Box Material EX300 x SCP150 x EX300
- PAD Material Styrofoam Pad
Box Assembling Method A - 1
- Packing Method Stapling or Taping
Carrying Handle No
8
SPECIFICATIONS

9
DISASSEMBLY
The disassembly order should be followed the steps suggested.
The assembly order should be followed the other disassembly order.
A. Frame
B. Front Panel

10
TROUBLESHOOTING
1. POWER circuit
✓Caution
You must use insulated trance during the first part test of POWER circuit.
No output voltage of Power Circuit
Check POWER CODE
(+)Voltage of C805
Switching Waveform on Drain of
Q801?
Output Voltage of D821,
D822,D823,D826?
Check other parts.
Replace POWER CORD
Check F801, L801, L802, D801, R802
Check D805,IC802,Q801
Check IC804, IC805, IC806
When Power is ON,
Pin 8 of P821 is +5 voltage?
BAD
GOOD
YES
YES
YES
NO
NO
NO
NO
Output Voltage on Pin
2 of IC804,IC805 & IC806?
YES
Replace bad parts
NO
**DVM Voltege Measure**
On 110 Voltage input, DC 80 ± 10 Voltage
On 220 Voltage input, DC 190 ± 20 Voltage
NO
Check ON/OFF Control

2. SYSTEM circuit
11
TROUBLESHOOTING
No Booting
VFD ON/OFF
NO Check +6V EVER (Pin 9 of P503) NO Check POWER
NO
Replace Q108 &Q109
NO Check FRONT
Reset IC
Pin 3 of IC110
High>Low>High
NO Replace IC110
MICOM Crystal
Check whether
X105(16MHz) oscillates
NO Replace X105
MICOM (IC107)
Check SDA(Pin 60)&SCL(Pin 61)
NO Replace IC107
EEPROM(IC103)
Check SDA(Pin 5)& SCL(Pin 6)
NO Replace IC103
Crystal
Check whether
X602(27MHz)Pin 5 oscillates
NO Replace X602
Level Shifter
Check SDA(Q108) & SCL(Q109)
NO Check whethet Q108 &
Q109 are working
YES
YES
YES
YES
YES
YES
YES
Replace Board( IC601 bad soldering)
1. NO BOOTING

12
TROUBLESHOOTING
FLASH(IC507 & IC508)
Check WE(Pin 11), RST(Pin 12),
CE(Pin 26) & OE(Pin 27)
NO Replace IC507 & IC508
SDRAM(IC505 &IC506)
Check WE(Pin 16), CS(Pin 19) &
CLK(Pin 38)
NO Replace IC505 & IC506
HDD
Check Pin 1 of P603
YES
IC511 & IC512
Check Pin 1 &Pin 24
NO Check Soldering
Replace IC511 & IC512
YES
Check IC513
Check Soldering of other parts
except IC
NO PVR RESET(Pin 31) = MAIN
RESET(Pin 29) AND ST20(Pin 32)
RESET HDD(Pin 40) = PVR
RESET(Pin 31) AND
HDD RESET(Pin 44)
NO Replace IC513
YES
YES
NO Check whether HDD is bad NO Replace HDD
NO Check soldering
Check IDE 80 PIN CABLE

13
TROUBLESHOOTING
Check IC601
Check X504(32.768KHz)
YES
NO
NO
NO
YES
YES
Check whether B101 is
+3.3Voltage
Check X102(32.768KHz)
IC601 re-programing
Check Soldering of
other parts except IC
Replace X504
Replace B101
Replace X102
2. NOT WORKING OF RTC
YES
** When POWER SAVE is not working
Sure about not
fulling HDD?
YES
NO
NO
NO
YES
YES
HDD connection Buffer
Check IC511 &IC512
Check whether HDD is good
Check soldering of IC51 & IC12
Check IDE cable
Check "RECORED PROGRAM" Many
programs
Delete some programs for empty
HDD
Some
programs
Check Length of all programs
NO follow "YES" step
Replace IC511 &IC512
Bad HDD,replace HDD
3. DISK FULL

14
TROUBLESHOOTING
3. VIDEO circuit
1. In case of no EE screen
In case of no
EE Screen
Is there video input
signal at pin
9,19,12,14,18,20 of IC304 ?
YES
YES
YES
NO
NO NO NO
YES
YES
Is there oscillating clock at pin
6,7 of IC304?
Case A.
PVR S-Video output/ DVD S-Video output
Pin12:Inspect C367 (Tuner,
Scart1, Scart2 input)
Is there signal at pin
1,3,28 of IC109?
Inspect C389,R196, R676,
R678,R686,R687,C651,C652
NO NO NO
Pin10:Inspect C392
(DVD input)
Is there signal at pin
7,9,11,13,14,15 of P505
Inspect power of
P822
NO
NO
NO
Pin20:Inspect C369
(Front input)
Inspect 3.3V of the power
Inspect IC303 and
peripheral circuit
Inspect C400,C401 and
X301
Case B.
PVR CVBS output/DVD CVBS output
Case C.
PVR RGB output/DVD RGB output
Inspect R722,R726,
D701,D702
Inspect FFC cable of the
loader
Pin14,18:Inspect C393,C395,
R352,R353(S-Video input)
Inspect IC109
Is there 3.3V at pin 1,8,25, 33, 43, 51,
58, 68,75,83,93 of IC304?
NO
Is there 3.3V at pin 11,17,23 of
IC304?
NO
YES
YES

15
TROUBLESHOOTING
A. PVR S-Video Output
DVD S-Video Output
Is there video signal at pin 1,3 of
IC306 and IC309
NO Inspect Q301,Q302,Q307,Q308
and filter circuit
Is there video signal
at pin 1,3 of IC314 ?
NO Inspect C484,C485,
R377,R380
YES
NO
Inspect IC304
YES
C. PVR RGB Output
DVD RGB Output
Is there video signal at pin 1,3 at
IC311, IC312 and IC313 ?
NO
Inspect Q304,
Q305,Q306,Q310, Q311, Q312
and filter circuit
Is there video signal
at pin 7 of IC311,
IC312,IC313 ?
NO
Inspect IC311,
IC312,IC313 and
C473,C475,C478
YES
NO
Inspect IC304
YES
B. PVR CVBS Output
DVD CVBS Output
Is there video signal
at pin 1,3 of IC310 ?
NO Inspect Q303,Q309 and filter circuit
Is there video signal
at pin 7 of IC310 ?
NO Inspect IC310 and C471
YES
Is there video signal
at pin 29,30 of IC109 ?
NO
Inspect C624,R671,
R672,R673,Q101,
R688,C644,
YES
NO
Inspect IC304
YES

16
TROUBLESHOOTING
4. AUDIO circuit
1. No Audio from AV1 output and Composite output on PVR Mode
NO NO NO
Pin 16 of IC206 is +12
Voltage? Inserted L217? Replace noninserted parts
NO Replace noninserted parts.
Inserted
C225, C235 R223,R242?
Inserted
C216, C234, R222,R241?
YES
Check
CANAL circuit
Check Pin 3 &
4 of P302
YES
Signals in Pin 1,12
or Pin 8,15 of IC206 ?
NO Replace noninserted parts.
YES
NO NO
Inserted
C251,C257,R286,R287? Replace noninserted parts.
Signals in Pin 1, 5 of IC451?
Replace IC206
YES
NO NO
Inserted L209? Replace noninserted parts.
YES
Pin 23 &18 of IC451 is +5 Voltage?
YES
NO Pin 8 of IC451 is +5
Voltage?
NO Inserted R454?
Replace IC451
YES
Clock signal on Pin 16 of
IC451
NO Check Pin 4 &37
of IC304
YES
YES
NEXT PAGE
YES

17
TROUBLESHOOTING
NO NO
Inserted L200? Replace noninserted parts.
Pin 14 of IC202 is +5 Voltage?
Check Power Circuit
YES
YES
NO Replace IC451?
Signals in Pin 13,14 &15
of IC451?
YES
YES
NO Check IC601?
Clock signal on Pin 5 of IC202?
NO NO
Inserted
R211,R212? Replace noninserted parts.
Signals on Pin 2,3 & 4 of IC202?
Check IC601?
YES
YES
NO NO
Inserted C214, C209,
C221,C222,R293,R294? Replace noninserted parts.
Signals on Pin 1,2,11,15
4,5,12&14 of IC201?
Replace IC202
YES
YES
NO NO
Inserted L205? Replace noninserted parts.
Pin 16 of IC202 is +12 Voltage?
Check Power Circuit
YES
YES
NEXT PAGE
YES

18
TROUBLESHOOTING
NO NO
Insert C223,C224,R419
R209,R297,R299,R240
R420,R251,R279?
Replace noninserted parts.
Signals on Pin 10 &12
of IC204?
Replace IC201
YES
YES
YES
NO NO
Inserted C260,
C258,C261,C259,C246,
C259,C246,C245,R419,R42
0,R423,R424,R421,R422?
Replace noninserted parts.
Signals on Pin 8&14 of IC204?
Replace IC201
YES
NO NO
Inserted
C262,C263,C267,C268,
C264,C265,C271,C272,
R425,R426,R433,R434,R427,
R428,R429,R430,R258,R262?
Replace noninserted parts.
Signals on Pin 1&12 of IC210?
YES
NO NO
Inserted L207? Replace noninserted parts.
Pin 4 of IC204 is +12 Voltage?
YES
Check Power circuit
YES
NEXT PAGE

19
TROUBLESHOOTING
NO NO
Inserted L260? Replace noninserted parts.
Pin 16 of IC210 is +12 Voltage?
Check Power circuit
YES
YES
YES
NO NO
Pin 10 of IC210 is +12
Voltage? Check Power Circuit
Signals on Pin 3&13 of IC210?
Check CANAL Circuit
YES
Check IC107
YES