Daewoo HC-4100B, HC-4200B Service manual

Service Manual

S/N No. :

FEB. 2004

DAEWOO DAT CO., LTD.

Mini Component System

Model:

Digital Home Cinema System

HC-4100B/4200B Series

HC-4130( ) / HC-4230( ) HC-4150( ) / HC-4250( ) HC-4160( ) / HC-4260( ) HC-4180( ) / HC-4280( )

9CD8302600

JUN. 2004

HC-4100( ) Series

HC-4200( ) Series

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.........................................11/26

7. WAVEFORMS OF MAJOR CHECK POINT......................27/31

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............................32/37

9. BLOCK DIAGRAM............................................................38/39

MAIN BLOCK SMPS

10. WIRING DIAGRAM..........................................................40/41

11. SCHEMATIC DIAGRAM..................................................42/51

DVD Processor Section DVD RF Section Video & Analog Audio Section DDX Section PWM Amp. Section Front Section SMPS

12. PRINTED CIRCUIT DIAGRAM........................................52/57

Front Main SMPS

13. EXPLODED VIEW AND MECHANICAL PARTS LIST ..58/61

MECHANICAL EXPLODED VIEW MECHANICAL PARTS LIST

14. ELECTRICAL PARTS LIST......................................Appendix

ELECTRICAL PARTS LIST ELECTRICAL PARTS LIST [OPTION LIST]

Contents

DIGITAL HOME CINEMA SYSTEM

HC4100( )/4200( ) Series

HC-4130( ) / 4150( ) / 4160( ) / 4180( )

HC-4230( ) / 4250( ) / 4260( ) / 4280( )

1. Safety Precautions

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 ACCOMPANYING THE APPLIANCE.

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

THIS UNIT EMPLOYS A LASER. ONLY QUALIFIED SERVICE PERSONNEL SHOULD REMOVE THE COVER OR ATTEMPT TO SERVICE THIS DEVICE DUE TO POSSIBLE EYE INJURY.

CAUTION :

USE OF ANY CONTROLS, ADJUSTMENTS, OR PROCEDURES

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 CORRESPONDANTE 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

future reference.

- All warnings on the appliance and in the operating instructions

should be 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

should be moved with care. Quick

stops, excessive force, and uneven surfaces may cause the appliance

and cart combination to overturn.

4. Wall or Ceiling Mounting - The appli-

ance should be mounted to a wall or

ceiling only 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. For example, the appliance should not be situated

on a bed, sofa, rug, or similar surface that may 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 should be situated away from heat

sources such as radiators, heat registers, stoves, or other

appliances (including amplifiers) 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 of the 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

Figure 2

1. Safety Precautions

13.Outdoor Antenna Grounding - If an 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

Electrical Code, 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 antennadischarge 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 outlet when left unused for a long period of time.

15.Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through 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.

ANTENNA DISCHARGE UNIT (NEC SECTION 810-20)

ANTENNA LEAD IN WIRE

POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250 PART H)

GROUND CLAMP

ELECTRIC SERVICE EQUIPMENT

GROUNDING CONDUCTORS (NEC SECTION 810-21)

GROUND CLAMPS

EXAMPLE OF ANTENNA GROUNDING

NEC - NATIONAL ELECTRICAL CODE

2. Specifications

HC-4130 HC-4230

HC-4150 HC-4250

HC-4160 HC-4260

HC-4180 HC-4280

Model

30 W, 6 ohm

50 W, 6 ohm

60 W, 6 ohm

80 W, 6 ohm

50 W, 6 ohm

80 W, 4 ohm

100 W, 4 ohm

120 W, 4 ohm

Same to

“ ” Series

Power output at 10%THD(RMS)

Front/Center

/Rear

Woofer

Remark

Power output Table

AC 230V / 50Hz

Power supply

Operation Voltage

3. Location of Users Controls

1. STANDBY/ON button with LED lamp

2. DISC TRAY

3. Remote Control Sensor

4. OPEN/CLOSE ( ) button

5. Display

6. PLAY ( ) button

7. STOP ( ) button

8. PREV ( ) button

9. NEXT ( ) button

10. FUNCTION button

11. MASTER VOLUME Control

12. PHONES jack

1 3 4 6 7 8 9 10

5 112

1. STANDBY/ON button with LED lamp

2. DISC TRAY

3. Display

4. Remote Control Sensor

5. OPEN/CLOSE ( ) button

6. PLAY ( ) button

7. STOP ( ) button

8. FUNCTION button

9. PREV ( ) button

10. NEXT ( ) button

11. MASTER VOLUME Control

12. PHONES jack

1 3 5 6 7 11 12

8 9 10

2 4

Front Panel : HC-4100( ) Series Only

Front Panel : HC-4200( ) Series Only

3. Location of Users Controls

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. DSP indicator

11. DRC indicator

12. SLEEP indicator

13. STEREO indicator

14. REPEAT indicator

15. RANDOM indicator

16. ALL indicator

17. TOTAL indicator

18. MUTE indicator

19. REMAIN indicator

20. PBC(Playback Control) indicator

21. EQ indicator

22. PBC(Playback Control) indicator

23. RDS indicator

24. PAUSE indicator

25. PLAY indicator

26. Multi-Function Information Displaying Area

1 4 13 15 18 20 21 232 6 8 10

3 5 7 9 11 12 14 16 17 19 22

Rear Panel

Display

1. Power cord

2. FM ANTENNA connector

3. SUBWOOFER SPEAKER connectors

4. CENTER SPEAKER connectors

5. REAR-L SPEAKER connectors

6. REAR-R SPEAKER connectors

7. FRONT-L SPEAKER connectors

8. FRONT-R SPEAKER connectors

9. DIGITAL INPUT jack

3 5 7

1 2 4 6 8

13 15 18

169 10

10. DIGITAL OUTPUT jackj

11. VIDEO IN jacks

12. VIDEO OUT jacks

13. S VIDEO MONITOR OUT jack

14. COAXIAL INPUT jack

15. SUBWOOFER OUTPUT A/B connectors

16. COMPONENT VIDEO OUTPUT Y/Pb/Pr jacks (Optional)

17. MONITOR OUT jack

18. SCART jack

3. Location of Users Controls

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, TV/AUX 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. GO TO/AUTO MEMORY button

20. PROGRESSIVE button

21. Number buttons(0~9)

22. CH-LEVEL button

23. DISPLAY/FM MODE button

24. A-B REPEAT button

25. REPEAT button

26. RANDOM/RDS button

27. SLOW button

28. EQ button

29. SURROUND MODE button

30. ZOOM button

31. SLEEP button

32. SUBTITLE/MPX button

33. TITLE/PBC button

34. AUDIO/PTY SEARCH button

35. ANGLE/DIGEST button

ENTER

2 3

26 27 30 31 34 35

24 25

29 32 33

Remote Controller

4. Connecting to Equipment

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

To video input

To video output

To audio input

To audio output

To S video input

Audio/Video

connection

cable

S Video connection cable

Surround speaker

Center speaker

Woofer speaker

Active subwoofer B

[USER Optional]

Audio Input

Front speaker

Left ch.

Front speaker

Right ch.

Left ch.

Right ch.

Active subwoofer A

[USER Optional]

Audio Input

4. Connecting to 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 / Center speaker / Surround Speakers : 6 ohms min. per speaker Woofer speaker : 4 ohm 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.

Connecting to Speaker

Connecting to Recoring Equipment

RED

BLUE

GREEN

GRAY

BROWN

YELLOW

5. Firmware Upgrade

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.

• HC-XX50( )/60( ) / 80( )

- Basic : A50_8.ROM

- DivX : A50A_16.ROM

• HC-4130( ) / 4230( )

- Basic : A30_8.ROM

- DivX : A30A_16.ROM

VOLUME

PHONES

DISC LOADING

Starting Update.

1. Detect the Update Disc.

2. Display for Update Version.

• Basic Version : HC-4150 / 60 / 80, HC-4250 / 60 / 80 (A50_8.ROM)

• Basic Version : HC-4130, HC-4230 (A30_8.ROM)

• DivX Version : HC-4150 / 60 / 80 , HC-4250 / 60 / 80 (A50A_16.ROM)

• DivX Version : HC-4130 , HC-4230 (A30A_16.ROM)

FLASH

A50A_16.ROM

5. Firmware Upgrade

Read the Disc, Checksum Check and Update New Firmware.

Completed Update.

1. Automatically Power off(about 15 sec), than enter standby mode.

2. Press Power Button, the System is working.

3. Open the Door of DVD Receiver then remove the Firmware update disc.

READING OK

FLASH

DONE

CHECKSUM OK

ERASE/WRITE

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

6. Trouble Shooting Guide

START

1. BASIC OPERATING

Is Standby LED

on?

Check Power Supply Circuit.

Check Connection CN701.

Turn Power on.

Is Power on?

Yes

Check DVD Processor Circuit.

IC501 Block.

Does Initial read work?

Yes

Check DVD Mechanism. Check RF Circuit IC301.

Does It Play?

Yes

Check DVD Region.

Check RF Circuit IC301.

Yes

Does It Ou

tput

Audio?

Check Audio Section.

Yes

Audio Part

6. Trouble Shooting Guide

Front Circuit

1. INITIAL OPERATING

START

Is Standby

LED on?

Yes

Is Power on?

Yes

Is Power on?

Yes

Check if IC501

pin 207 is high?

Yes

Check OSC waveform of

XC501.

Yes

Check I2C Line

of IC504.

Yes

Check Connection CN701.

Check Power Supply.

Replace Reset IC.

IC508.

Check DVD Power Supply

Section, PT902.

Replace Crystal, XC501.

Check Devices connected I2C

Line.

IC201, IC401, IC408.

Initial Operation OK.

Check interface

of VFD Dr

Yes

Check interface

Yes

iver

of SDRAM

Check VFD Data Interface.

VFD_DATA/CLK.

Replace Front PCB As

Check CLK of SDRAM.

Replace Flash Memory.

s’y.

6. Trouble Shooting Guide

Check if

pwr_on of

IC208 is high?

Yes

Check I2C Line

of IC504.

Yes

Check interface

of VFD Driver

Yes

Check Devices connected I2C

Line.

IC201, IC401, IC408.

Check VFD Data Interface.

VFD_DATA/CLK.

Replace Front PCB Ass’y.

Check interface

of SDRAM

Check CLK of SDRAM.

Replace Flash Memory.

Check if display of Logo on TV?

Check Connection between

Main and Mechanism.

Replace DVD Mechanism.

Yes

Check if protect

of IC207 is

high?

Yes

Check Protect Sencin

Circuit. IC206.

Front Circuit

6. Trouble Shooting Guide

3. AUDIO Abnormal

Check if the I2S

output of IC501

is ok?

Replace IC501.

Check if the I2S

input of IC201

is ok?

Yes

Check Schmitt Triger IC.

IC204, IC205.

Check if the

PWM output of

IC201 is ok?

Yes

Check if the

PWM output of

Digital Amp is

ok?

Yes

Check if

Speaker Output

is ok?

Yes

Audio Abnormal of

DVD Function

Check if

suppled powe

is ok?

Check Regulator Circuit.

IC202.

Yes

Check if EAPD

is high?

Check PLL Circuit of IC201.

Yes

Check Bias Voltge 3.3V of IC801 to IC804.

Check short between Signal to GND or VCC.

Check LPF L801 to L812.

Video Input Function.

Tuner Input Function.

Digital Audio Input Function.

Audio Part

6. Trouble Shooting Guide

3. AUDIO Abnormal

Check if the I2S

output of IC401

is ok?

Yes

Check if the TDM input of IC501 is ok?

Audio Abnormal of

Video Input Function

Check if I2C

between IC501

is ok?

Check I2C Line.

Yes

Check if I2S

between IC406

is ok?

Check I2S output of IC406.

Check Crystal XC401.

Yes

Check IC406 DAUX output.

Check I2S Format of TDM Port.

IC501 pin 101 to 103.

Yes

Audio Part

6. Trouble Shooting Guide

3. AUDIO Abnormal

Check if the I2S

output of IC401

is ok?

Yes

Check if the

TDM input of

IC501 is ok?

Audio Abnormal of

Tuner Function

Check if I2C

between IC501

is ok?

Check I2

C Line.

Yes

Check if I2S

between IC40

is ok?

Check I2S outp

ut of IC406.

Check Crystal XC401.

Yes

Check IC406 DAUX output.

Check I2S Format of TDM Port.

IC501 pin 101 to 103.

Yes

Check if the

Data Interface

is ok?

Check IC207 Data Interface

Stereo, Tuned, PLL_CE.

Check if the

Tuner data is

ok?

Check if the RDS data is

ok?

Yes

Check IC501 Data Interface

RDS_CLK, RDS_DATA

Yes

Audio Part

6. Trouble Shooting Guide

3. AUDIO Abnormal

Check if the I2S

output of IC407

is ok?

Yes

Check if the TDM input of IC501 is ok?

Audio Abnormal of Digital

Audio Input Function

Yes

Check IC406 CDTO output.

Check I2S Format of TDM Port.

IC501 pin

101 to 103.

Yes

Check if the

Input Select is

ok?

Check IC207 Data Interface

DATA, CLK, 41 17_CS

Check if the

Data interface

is ok?

Yes

Check Crystal XC401.

Yes

Check if the

OSC waveform

is ok?

OPTICAL INPUT & COAXIAL INPUT

Audio Part

6. Trouble Shooting Guide

4. AUDIO LINE OUTPUT Abno rmal

Check if the

output of IC501

pin121 is ok?

Replace IC501.

Yes

Check if the

output of IC408

is ok?

Check if the

Signal waveform of

IC410 is ok?

Yes

Check if

H/P

Output of Jack

is ok?

Yes

Audio Abnormal of

H/P Output

Check if I2S

between IC501

is ok?

Check I2S Line.

Yes

Check if VQ &

FILT+ is ok?

Check PLL

Circuit of IC408.

Replace DAC, IC408

Yes

Check TR of Mute Circuit.

Check Mutec Port of IC408.

Check Connection CN701.

Audio Part

6. Trouble Shooting Guide

4. AUDIO LINE OUTPUT Abno rmal

Check if the

output of IC501

pin121 is ok?

Replace IC501.

Yes

Check if the

output of IC408

is ok?

Check if the Signal

waveform of IC401

is ok?

Yes

Check if

REC

Output of Jack

is ok?

Yes

Audio Abnormal of

Rec Output

Check if I2S

between IC501

is ok?

Check I2S Line.

Yes

Check if VQ &

FILT+ is ok?

Check PLL

Circuit of IC408.

Replace DAC, IC408

Yes

Check IC409 Buffer.

Check Function IC, IC401

Audio Part

6. Trouble Shooting Guide

4. AUDIO LINE OUTPUT Abno rmal

Check if the

output of IC501

pin120 is ok?

Replace IC501.

Yes

Check if the

output of IC408

is ok?

Yes

Check i

f SW

Output of Jack

is ok?

Yes

Audio Abnormal of

Subwoofer Output

Check if I2S

between IC501

is ok?

Check I2S Line.

Yes

Check if VQ &

FILT+ is ok?

Check PLL

Circuit of IC408.

Replace DAC, IC408

Yes

Check IC411 Pre Amp Circuit.

Audio Part

6. Trouble Shooting Guide

4. AUDIO LINE OUTPUT Abno rmal

Check if the

output of IC501

pin124

is ok?

Replace IC501.

Yes

Check if the

output of IC404

is ok?

Yes

Audio Abnormal of

Optical Output

Check if Setu

is ok?

Setting for Digital Output on

Yes

Check if IC303

is ok?

Replace Buffer, IC303

Yes

Audio Part

6. Trouble Shooting Guide

5. AUDIO CONTROL Abnormal

Check if the

I2C waveform

of IC201 is ok?

Check between IC501 to IC201.

Replace IC201.

Yes

Check if the

data of IC501 is

ok?

Yes

Audio Abnormal of

Volume Control

Check Input

data of volume

is ok?

Check Connection CN701.

Check Encoder SW. VR701.

Yes

Replace IC501

Audio Part

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