Daewoo RD-400 Series User manual

Service Manual
S/N No. :
FEB. 2004
DAEWOO DAT CO., LTD.
Mini Component System
Model:
DVD Micro System
RD-400() Series
9CD8303000
JAN. 2005
series
only

1. SAFETY PRECAUTIONS......................................................1/2
2. SPECIFICATIONS....................................................................3
3. LOCATION OF USERS CONTROLS....................................4/6
FRONT PANEL
REAR PANEL
DISPLAY
REMOTE CONTROLLER
4. CONNECTING TO EQUIPMENT...........................................7/8
CONNECTING TO TV
CONNECTING TO AUDIO & VIDEO
CONNECTING TO SPEAKER
CONNECTING TO RECORDING EQUIPMENT
5. FIRMWARE UPGRADE .....................................................9/10
6. TROUBLE SHOOTING GUIDE.........................................11/20
7. WAVEFORMS OF MAJOR CHECK POINT......................21/23
AUDIO OUT SIGNAL WAVEFORM
DAC OUTPUT SIGNAL WAVEFORM
OPTICAL OUTPUT AUDIO DATA SIGNALFORM
L/R CLOCK DATA WAVEFORM DURING NORMAL PLAY
SERIAL DATA OUTPUT WAVEFORM DURING NORMAL PLAY
Pr OUTPUT DATA WAVEFORM IN COMPONENT OUTPUT
Pb OUTPUT DATA WAVEFORM IN COMPONENT OUTPUT
Y OUTPUT DATA WAVEFORM IN COMPONENT OUTPUT
COMPOSITEOUTPUT DATA WAVEFORM IN MONITOR OUTPUT
S-VIDEO OUTPUT DATA WAVEFORM
8. INTERNAL BLOCK DIAGRAM OF ICs..........................24/28
9. BLOCK DIAGRAM...............................................................29
10. WIRING DIAGRAM...............................................................30
11. SCHEMATIC DIAGRAM..................................................31/35
MPEG Section
MPEG RF Section
I/A Section
FRONT Section
POWER Section
12. PRINTED CIRCUIT DIAGRAM........................................36/41
Front
Main
MPEG
13. EXPLODED VIEW AND MECHANICAL PARTS LIST ..42/43
MECHANICAL EXPLODED VIEW
MECHANICAL PARTS LIST
14. ELECTRICAL PARTS LIST......................................Appendix
ELECTRICAL PARTS LIST
ELECTRICAL PARTS LIST [OPTION LIST]
Contents
DVDMICROSYSTEM
RD-400() Series

1.SafetyPrecautions
WARNING : TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION : TO REDUCE THE RISK IF ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS
INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE
PRESENCE OF UNINSULTED "DANGEROUS VOLTAGE"
WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE
SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF
ELECTRIC SHOCK TO PERSONS.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE
PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE
(SERVICING) INSTRUCTIONS IN THE LITERATURE
ACCOMPANYINGTHEAPPLIANCE.
CAUTION
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC
PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET
UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE
EXPOSURE.
LASER SAFETY
THISUNITEMPLOYSA LASER.ONLY QUALIFIEDSERVICE PERSONNEL
SHOULD REMOVE THE COVER OR ATTEMPT TO SERVICE THIS DEVICE
DUE TO POSSIBLE EYE INJURY.
CAUTION: USEOFANYCONTROLS,ADJUSTMENTS, ORPROCEDURES
OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS
RADIATION EXPOSURE.
CAUTION : TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF
PLUG TO WIDE SLOT, FULLY INSERT.
ATTENTION : POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE
LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPON-
DANTE DE LA PRISE ET POUSSER JUSQU'AU FOND.
Important Safety Instructions
- All the safety and operating instructions should be read before
the appliance is operated.
- The safety and operating instructions should be retained for
futurereference.
- All warnings on the appliance and in the operating instructions
shouldbe adhered to.
- All operating and use instructions should be followed.
1. Water and Moisture - The appliance should not be used near
water - for example, near a bathtub, washbowl, kitchen sink,
laundry tub, in a wet basement, or near a swimming pool,
and the like. 2. Carts and Stands - The appliance
should be used only with a cart or
stand that is recommended by th
manufacturer.
3. An appliance and cart combination
shouldbe moved with care. Quick
stops, excessive force, and uneven
surfaces may cause the appliance
andcart combination to overturn.
4. Wall or Ceiling Mounting - The appli-
ance should be mounted to a wall or
ceilingonly as recommended by the manufacturer.
5. Ventilation - The appliance should be situated so that its
location or position does not interfere with its proper
ventilation. Forexample, theapplianceshould notbesituated
on a bed, sofa, rug, or similar surface thatmay block the
ventilation openings; or, placed in a built-in installation, such
as a bookcase or cabinet that may impede the flow of air
through the ventilation openings.
6. Heat -The appliance shouldbe situated awayfrom heat
sources such as radiators, heat registers, stoves, or other
appliances (includingamplifiers) that produce heat.
7. Power Sources - The appliance should be connected to a
power supply only of the type described in the operating
instructions or as marked on the appliance.
8. Grounding or Polarization - The precautions that should be
taken so that the grounding or polarization means of an
appliance is not defeated.
9. Power - Cord Protection - Power-supply cords should be
routed so that they are not likely to be walked on or pinched
by items placed upon or against them, paying particular
attention to cords at plugs, convenience receptacles, and the
point where they exit from the appliance.
10.Protective Attachment Plug - If the appliance is equipped with
an attachment plug having overload protection. This is a
safety feature. See Instruction Manual for replacement or
resetting of protective device. If replacement ofthe plug is
required, be sure the service technician has used a
replacement plug specified by the manufacturer that has the
same overload protection as the original plug.
11.Cleaning - The appliance should be cleaned only as
recommended by the manufacturer.
12.Power Lines - An outdoor antenna should be located away
from power lines.
CAUTION
RISK OF ELECTRIC SHOCKS
DO NOT OPEN
PORTABLE CART
Figure2
1

1.SafetyPrecautions
13.Outdoor AntennaGrounding - Ifan outside antenna is
connected to the receiver be sure the antenna system is
grounded so as to provide some protection against voltage
surges and built-up static charges. Article 810 of the National
ElectricalCode, ANSI/NFPA 70, provides information with
regard to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna-dis
charge unit, size of grounding conductors,location of antenna-
discharge unit, connection to grounding electrodes and
requirements for the grounding electrode. See Figure 1.
14.Non-use Periods - The power cord of the appliance should be
unplugged from the outletwhen left unused for a long period
of time.
15.Objectand Liquid Entry-Care should betakenso thatobjects
donotfallandliquidsarenot spilledintotheenclosurethrough
openings.
16.Damage Requiring Service - The appliance should be
serviced by qualified service personnel when:
a) The power-supply cord or the plug has been damaged; or
b) Objects have fallen, or liquid has been spilled into the
appliance; or
c) The appliance has been exposed to rain; or
d) The appliance does not appear to operate normally or
exhibits a marked change in performance; or
e) The appliance has been dropped, or the enclosure
damaged.
17.Servicing - The user should not attempt to service the
appliance beyond that described in the operating instructions.
All other servicing should be referred to qualified service
personnel.
ANTENNADISCHARGEUNIT
(NECSECTION810-20)
ANTENNALEAD
INWIRE
POWERSERVICEGROUNDING
ELECTRODESYSTEM
(NECART250PART H)
GROUNDCLAMP
ELECTRIC
SERVICE
EQUIPMENT
GROUNDINGCONDUCTORS
(NECSECTION 810-21)
GROUNDCLAMPS
EXAMPLEOFANTENNA
GROUNDING
NEC-NATIONALELECTRICALCODE
2

2.Specifications
3

3.LocationofUsersControls
4
Front Panel
1. Remote Control Sensor
2. Display
3. DISC TRAY
4. STANDBY/ON button
5. STANDBY/ON LED lamp
6. PHONES jack
7. PLAY () button
8. STOP () button
9. PREV () button
10. NEXT () button
11. USB jack(Option)
12. Microphone jack
13. Mic. VOLUME Control
14. FUNCTION button
15. OPEN/CLOSE () button
16. MASTER VOLUME Control
1
2
3
5
6
4
7 8 11 12 13
15
14
16
910

3.LocationofUsersControls
5
Rear Panel
Display
1 4 11 13 16 18 19 212 6 8
3 5 7 9 10 12 14 15 17 20
23
22
24
1. DOLBY DIGITAL indicator
2. Pro Logic II indicator
3. DTS indicator
4. TITLE indicator
5. DVD indicator
6. CHAPTER indicator
7. VCD indicator
8. TRACK indicator
9. MP3 indicator
10. SLEEP indicator
11. STEREO indicator
12. REPEAT indicator
13. RANDOM indicator
14. ALL indicator
15. TOTAL indicator
16. MUTE indicator
17. REMAIN indicator
18. PBC(Playback Control) indicator
19.EQindicator
20. PROGRESSIVE indicator
21. RDS indicator
22. PAUSE indicator
23. PLAY indicator
24. Multi-Function Information Displaying Area
1. COMPONENT VIDEO OUTPUT
Y/Pb/Pr jacks (Optional)
2. Power cord
3. COAXIAL OUTPUT jack
4. AUDIO INPUT(R/L) jacks
5. VIDEO INPUT jacks
6. VIDEO OUTPUT jacks
7. SUBWOOFER OUTPUT
connectors : For Active subwoofer
speaker(User option)
8. S-VIDEO MONITOR OUT jack
9. FRONT SPEAKER connectors
10. AM(MW) ANTENNA connector
11. FM ANTENNA connector
12. SCART jack
2
1
875 64
9
12
11
10
3

6
3.LocationofUsersControls
Remote Controller
1. STANDBY/ON button
2. OPEN/CLOSE button
3. MUTE button
4. INPUT SELECTOR: DVD button/
TV SYSTEM(PAL/NTSC: DVD only) button
5. INPUT SELECTOR: VIDEO button
6. INPUT SELECTOR: TUNER button
7. FAST REVERSE(FR) ( ) button
8. FAST FORWARD(FF) ( ) button
9. SKIP PREV ( ) button
10. SKIP NEXT ( ) button
11. Direction ( ) buttons
12. Enter button
13. PLAY ( ) button
14. VOLUME( ) buttons
15. SETUP button
16. STOP( ) button
17. MENU/RETURN button
18. PAUSE/STEP button
19.GOTO/AUTOMEMORYbutton
20. PROGRESSIVE button
21. Number buttons(0~9)
22. CH-LEVEL button(Not Used)
23. DISPLAY/FM MODE button
24. A-B REPEAT button
25. REPEAT button
26. RANDOM/RDS MODE button
27. SLOW button
28. EQ button
29. SURROUND MODE button(Not Used)
30. ZOOM button
31. SLEEP button
32. SUBTITLE/MPX button
33. TITLE/PBC button
34. AUDIO/PTY SEARCH button
35. ANGLE/DIGEST button
ENTER
45
1
2 3
5
6
8
10
11
14
14
28
19
20
23
26
27
30
31
34
35
4
7
9
11
12
11
11
13
15
16
17
18
21
22
24
25
29
32
33

4.ConnectingtoEquipment
7
If the TV or monitor is equipped with an S video input, make the S video connection in addition to the normal video
connection. The S video connection will provide higher quality picture playback.
21-Pin SCART Cable(not included) to 21-pin SCART input terminal on TV
SCART Specification : Composite and Component Video output(DVD, Video)Audio L/R Output(DVD only)
Connecting to TV
Connecting to Audio & Video
for EU version: optional
Audio/Video connection cable
Video connection cable
To audio output To S video input To video output To video output
S video connection cable

4.ConnectingtoEquipment
8
Connecting to Speaker
Connecting to Recoring Equipment
Before connecting
This machine is designed to reproduce optimum sound quality when speakers with the specified impedance below
are connected. Please check the following information and choose speakers with appropriate impedance for the
connections.
Front speakers(L/R) : 6 ohms min. per speaker
To prevent damage to circuits, never short-circuit the positive (+) and negative (-) speaker wires.
Do not connect the speaker cable to the L and R connectors at the same time and do not connect more than one
speaker to the same speaker connectors.
Right speakerLeft speaker
R L R L
NO!
NO!NO!
DVD Micro System

5.FirmwareUpgrade
Preparing the Firmware Upgrade
Activating the Firmware Upgrade
1. Write a disc to update file by
PC Writing Program.
2. A size of dummy folder is more than
10M bite. (ex : font_dw, attached picture)
3. Put firmware file in a disc.
1. Open the door of DVD receiver.
2. Insert the update disc into the disc tray.
3. Close the door, then DVD receiver reads the disc,
and update the firmware itself.
•
Basic Model : A400L_8.ROM
•
DivX Model : A400L_16.ROM
DISC LOADING
9
Starting Update.
1. Detect the update disc.(Lead Free)
2. Display for update ROM Version.
•
Basic Model : A400L_8.ROM
•
DivX Model : A400L_16.ROM
FLASH
A400L_16.ROM

5.FirmwareUpgrade
Read the disc.
1. Automatically open the door, after read from disc.
2. Take a disc out of a tray
Completed Update.
1. Automatically power off (about 15 sec),after complete update.
2. Press POWER button, the System is working.
DONE
10
Check the Update Version.
1. Open the door of DVD receiver.
2. Press AUDIO button or SUBTITLE button.
•
AUDIO Button : Check for MPEG Firmware Version.
•
SUBTITLE Button : Check for Loader Firmware Version.
• While updating, if the door opened or closed by touch, or power button is pressed,
the Flash Memory will be damaged.
Caution
Firmware
Model Firmware
Version Flash Size
READING OK
FLASH
CHECKSUM OK
ERASE/WRITE
Checksum check & Update new firmware.

6.TroubleShootingGuide
11
START
1. BASIC OPERATING
Is Standby LED
on?
Check Power Supply Circuit.
Check Connection CN901, CN951.
No
Turn Power on.
Is Power on?
Yes
Check DVD Processor Circuit.
IC501 Block.
No
Does Initial
read work?
Yes
Check DVD Mechanism.
Check RF Circuit IC301.
No
Does It Play?
Yes
No
Check DVD Region.
Check RF Circuit IC301.
Yes
Does It Output
Audio? No
CheckAudio Section.
Yes
OK
Audio Part

12
6.TroubleShootingGuide
START
1. INITIAL OPERATING
Is Standby
LED on? No
Initial Operation OK.
Yes
Check OSC
waveform of
XC501.
Check I2C Line
of IC504.
Yes
Yes
Check interface
of VFD Driver
Yes
Is Power on?
Check Connection CN901/CN951.
Check Power Supply.
No
No
No
No
Yes
Check DVD Power Supply
Check Devices connected
I2C Line.
Check VFD Data Interface.
VFD_DATA/CLK.
Replace Front PCBAss'y.
Check interface
of SDRAM No
Check CLK of SDRAM.
Replace Flash Memory.
Is Power on?
1
No
Yes
Yes
Front Circuit

3.AUDIO Abnormal
Check if the I2S
Output of IC501
is ok?
Replace IC501.
No
Check if theI2S
Input of IC861
is ok?
Yes
Check Chip Resistor
HA861
Check if the
Output of IC861
is ok?
Yes
No
Yes
Yes
Yes
OK
AudioAbnormal of
DVD Function
Check if
suppled power
is ok?
Check Regulator Circuit.
IC904.
Yes
No
No
No
Check Regulator Circuit
IC902
No
Check Power Circuit
CE903, CE904
Check if
the Output of
IC871 is ok?
Check if
the Output of
IC841 is ok?
1
3
Video Output
Funtion
Digital Audio
Input Funtion
13
6.TroubleShootingGuide
Audio Part

14
6.TroubleShootingGuide
3.AUDIO Abnormal
Check if the
Audio output of
IC401 is ok?
Check if the
Audio output of
IC421 is ok?
Check if the
Audio Input of
IIC401 is ok?
No
Yes No
CheckAudio In Line of J481
Check Regulator Circuit
IC902, 903
Yes
No
Yes
1
AudioAbnormal of Tuner
/Video Input Function
Audio Part
4.AUDIO LINE OUTPUT Abnormal
No
Yes
Yes
OK
AudioAbnormal
of H/P Output
Check if the
Output of IC811
is ok?
Check if the
Output of J701
is ok?
Check Regulator Circuit
IC902, 903
No
CheckAudio Circuit

5.AUDIO CONTROLAbnormal
Yes
No
OK Check Remote Receiver RM701
Yes
No
Replace IC501
Check if the
data of IC501
is ok?
Check Input
data of RMC
is ok?
AudioAbnormal of
Remote Control
6.TroubleShootingGuide
5.AUDIO CONTROLAbnormal
No
Yes
Check if the
data of IC501 is
ok?
No
Yes
OK
AudioAbnormal of
Volume Control
Check Encoder SW. VR701
Yes
No
Replace IC501
Check if the
I2C Waveform of
IC841 is ok?
Check between IC501 to IC841
Check Input
Data of Volume
is ok?
15
Audio Part

6.TroubleShootingGuide
6. VIDEO OUTPUTAbnormal
Yes
Check if the
Output of IC501
is ok?
OK
VIDEOAbnormal of
Component
Check Setup
is ok?
Setting for RGB Mode.
Yes
No
Replace IC501
No
Check the
output of Jack
is ok?
Yes
No
Check Filter Circuit.
Check Crystal
is ok?
Yes Replace Cystal, XC501.
No
16
Audio Part

6.TroubleShootingGuide
6. VIDEO OUTPUTAbnormal
Yes
Check if the
Output of IC501
is ok?
OK
VIDEOAbnormal
of S-VIDEO
Check Setup
is ok?
Setting for S-VIDEO Mode.
Yes
No
Replace IC501
No
Check the
output of Jack
is ok?
Yes
No
Check Filter Circuit.
Check Crystal
is ok?
Replace Crystal, XC501.
No
17
Audio Part

6.TroubleShootingGuide
6. VIDEO OUTPUTAbnormal
Yes
Check if the
Output of IC501
is ok?
OK
VIDEOAbnormal of
Composite
Yes
Replace IC501
Check the
output of IC481
is ok?
No
No
Check the
output of Jack
is ok?
Yes
Yes
No
Check Filter Circuit.
Check Crystal
is ok?
Replace Crystal, XC501.
No
Check the
control of Select
is ok? Check Power Supply Circuit.
Check Control Line between
IC510 : Pin12, 15
No
Replace IC481
Yes
18
Audio Part