Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo DHC DHC-X100N & X150N DHC-X100N & X150N
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S/N No. : 9CD8302200
Service Manual
Digital Home Cinema System
Mini Component System
DIGITAL HOME CINEMA SYSTEM
Model: DHC-X100N/X150N
[* DVD-DR4033 for Quelle] DHC-X100N
DHC-X150N
Contents
1. SAFETY PRECAUTIONS......................................................2/3
2. SPECIFICATIONS....................................................................4 8. INTERNAL BLOCK DIAGRAM OF ICs............................18/22
3. LOCATION OF USERS CONTROLS....................................5/7 9. BLOCK DIAGRAM.................................................................23
FRONT PANEL
REAR PANEL 10. WIRING DIAGRAM...............................................................24
DISPLAY
REMOTE CONTROLLER 11. SCHEMATIC DIAGRAM..................................................25/29
FRONT
4. CONNECTING TO EQUIPMENT...........................................8/9 Mi-COM
N
TUR
/RE
MENU
TIM
E
CONNECTING TO TV INPUT/VIDEO
CONNECTING TO AUDIO & VIDEO AMP
ANGL
E
CONNECTING TO SPEAKER POWER
12. PRINTED CIRCUIT DIAGRAM........................................30/33
[DHC-X100N] 5. TROUBLE SHOOTING GUIDE.........................................10/14
MAIN
6. DVD PROGRAM DOWNLOAD METHOD..............................15 IN/OUT
FRONT [DHC-150 Only]
7. WAVEFORMS OF MAJOR CHECK POINT......................16/17
AUDIO OUT SIGNAL WAVEFORM 13. EXPLODED VIEW AND MECHANICAL PARTS LIST...34/37
DAC OUTPUT SIGNAL WAVEFORM MECHANICAL EXPLODED VIEW
OPTICAL OUTPUT AUDIO DATA SIGNALFORM MECHANICAL PARTS LIST
/RE
TUR
N L/R CLOCK DATA WAVEFORM DURING NORMAL PLAY
14. ELECTRICAL PARTS LIST......................................Appendix
MENU
SERIAL DATA OUTPUT WAVEFORM DURING NORMAL PLAY
TIM
E
Pr OUTPUT DATA WAVEFORM IN COMPONENT OUTPUT
ST
ANDBY/ON Pb OUTPUT DATA WAVEFORM IN COMPONENT OUTPUT
E
ANGL
Y OUTPUT DATA WAVEFORM IN COMPONENT OUTPUT
[DHC-X150N]
DAEWOO DAT CO., LTD. 1
FEB. 2004
1. Safety Precautions 1. Safety Precautions
13.Outdoor Antenna Grounding - If an outside antenna is 15.Object and Liquid Entry - Care should be taken so that objects
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE laundry tub, in a wet basement, or near a swimming pool,
connected to the receiver be sure the antenna system is do not fall and liquids are not spilled into the enclosure through
THIS APPLIANCE TO RAIN OR MOISTURE. and the like.
grounded so as to provide some protection against voltage openings.
2. Carts and Stands - The appliance
CAUTION PORTABLE CART surges and built-up static charges. Article 810 of the National 16.Damage Requiring Service - The appliance should be
should be used only with a cart or
RISK OF ELECTRIC SHOCKS Electrical Code, ANSI/NFPA 70, provides information with serviced by qualified service personnel when:
stand that is recommended by th
DO NOT OPEN manufacturer. regard to proper grounding of the mast and supporting a) The power-supply cord or the plug has been damaged; or
3. An appliance and cart combination structure, grounding of the lead-in wire to an antenna-dis b) Objects have fallen, or liquid has been spilled into the
should be moved with care. Quick charge unit, size of grounding conductors,location of antenna- appliance; or
CAUTION :TO REDUCE THE RISK IF ELECTRIC SHOCK, DO NOT
discharge unit, connection to grounding electrodes and c) The appliance has been exposed to rain; or
REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS stops, excessive force, and uneven
INSIDE. surfaces may cause the appliance requirements for the grounding electrode. See Figure 1. d) The appliance does not appear to operate normally or
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. and cart combination to overturn. exhibits a marked change in performance; or
Figure 2 4. Wall or Ceiling Mounting - The appli- e) The appliance has been dropped, or the enclosure
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE EXAMPLE OF ANTENNA
damaged.
PRESENCE OF UNINSULTED "DANGEROUS VOLTAGE" ance should be mounted to a wall or GROUNDING ANTENNA LEAD
IN WIRE
17.Servicing - The user should not attempt to service the
WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE ceiling only as recommended by the manufacturer.
appliance beyond that described in the operating instructions.
SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF 5. Ventilation - The appliance should be situated so that its
ELECTRIC SHOCK TO PERSONS.
GROUND CLAMP All other servicing should be referred to qualified service
location or position does not interfere with its proper ANTENNA DISCHARGE UNIT
(NEC SECTION 810-20) personnel.
ventilation. For example, the appliance should not be situated
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE ELECTRIC
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE on a bed, sofa, rug, or similar surface that may block the SERVICE
EQUIPMENT
(SERVICING) INSTRUCTIONS IN THE LITERATURE ventilation openings; or, placed in a built-in installation, such GROUND CLAMPS
POWER SERVICE GROUNDING
ACCOMPANYING THE APPLIANCE. as a bookcase or cabinet that may impede the flow of air NEC - NATIONAL ELECTRICAL CODE
ELECTRODE SYSTEM
(NEC ART 250 PART H)
through the ventilation openings.
CAUTION 14.Non-use Periods - The power cord of the appliance should be
6. Heat - The appliance should be situated away from heat
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC unplugged from the outlet when left unused for a long period
sources such as radiators, heat registers, stoves, or other
PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET of time.
UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE appliances (including amplifiers) that produce heat.
EXPOSURE. 7. Power Sources - The appliance should be connected to a
power supply only of the type described in the operating
LASER SAFETY instructions or as marked on the appliance.
THIS UNIT EMPLOYS A LASER. ONLY QUALIFIED SERVICE PERSONNEL
8. Grounding or Polarization - The precautions that should be
SHOULD REMOVE THE COVER OR ATTEMPT TO SERVICE THIS DEVICE
DUE TO POSSIBLE EYE INJURY. taken so that the grounding or polarization means of an
appliance is not defeated.
CAUTION : USE OF ANY CONTROLS, ADJUSTMENTS, OR PROCEDURES 9. Power - Cord Protection - Power-supply cords should be
OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS routed so that they are not likely to be walked on or pinched
RADIATION EXPOSURE. by items placed upon or against them, paying particular
attention to cords at plugs, convenience receptacles, and the
CAUTION : TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF
PLUG TO WIDE SLOT, FULLY INSERT. point where they exit from the appliance.
10.Protective Attachment Plug - If the appliance is equipped with
ATTENTION : POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE an attachment plug having overload protection. This is a
LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPON- safety feature. See Instruction Manual for replacement or
DANTE DE LA PRISE ET POUSSER JUSQU'AU FOND. 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
Important Safety Instructions same overload protection as the original plug.
- All the safety and operating instructions should be read before 11.Cleaning - The appliance should be cleaned only as
the appliance is operated. recommended by the manufacturer.
- The safety and operating instructions should be retained for 12.Power Lines - An outdoor antenna should be located away
future reference. from power lines.
- 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,
2 3
2. Specifications 3. Location of Users Controls
General specifications Front Panel
Power consumption Standby 2Watt
[DHC-X100N]
Power supply AC 110V or 120V or 127V / 60Hz Operating 90Watt
Voltage ( Option ) 220V or 230V or 240V / 50Hz
Dimensions (W x D x H) / Weight 360 x 380 x 70mm/ 6.0 kg
Front Amp. Section
POWER OUTPUT at 10% THD at 1KHz, 6 ohms 17W
THD(TOTAL HARMONIC DISTORTION) at 1KHz, 1W 0.2%
INPUT SEN. / Impedance @ 1KHz, 47K ohms VIDEO, TV/AUX 500mV 30mV/47K
FREQUENCY RESPONSE Large at 1KHz, 1W 30Hz~20KHz
Small at 1KHz, 1W 100Hz~20KHz
S/N RATIO, IHF-A WEIGHTED VIDEO, TV/AUX 70dB
SUBWOOFER TURNOVER FREQUENCY 120Hz
CHANNEL SEPARATION 1KHz 60dB
1. STANDBY indicator
Center Amp Section 2. STANDBY / ON button 8. NEXT ( ) button
POWER OUTPUT at 10% THD At 1KHz, 6 ohms 17W 3. DVD/VIDEO CD/MP3 CD/audio CD disc tray 9. FUNCTION button
THD(TOTAL HARMONIC DISTORTION) At 1KHz, 1W 0.2%
S/N RATIO, IHF-A FILTER 1W 70dB 4. OPEN/CLOSE ( ) button 10. Remote Control Sensor
FREQUENCY RESPONSE(Dolby Digital) : Small 1W 100Hz~20KHz 5. PLAY ( ) button 11. Display
6. STOP ( ) button 12. MASTER VOLUME control
Rear Amp Section 7. PREV ( ) button 13. PHONES jack
POWER OUTPUT 10% THD At 1KHz, 6 ohms 17W
THD(TOTAL HARMONIC DISTORTION) At 1KHz, 1W 0.2%
S/N RATIO, IHF-A FILTER 1W 70dB
FREQUENCY RESPONSE(Dolby Digital) : Small 1W 100Hz~20KHz
Subwoofer Section
[DHC-X150N]
POWER OUTPUT at 10% THD At 100Hz, 8 ohms 30W
FREQUENCY RESPONSE 1W 20Hz~150Hz
S/N RATIO, IHF-A Weight 70dB
Video Section ST
ANDBY/ON
Input Sen. / Impedance Composite Video(Video) 1Vp-p/75 ohm 50 mV
Composite 75 ohm 1Vp-p/75 ohm 50 mV
Output Level / Impedance S-Video(Y/C) 75 ohm(DVD only) 1Vp-p/ 0.286Vp-p 50 mV
Color Bar 100% Component Out(Y / Pb / Pr):Option 1Vp-p/0.7Vp-p/0.7Vp-p 50 mV
G, R, B(Scart) Out : Option 0.7Vp-p/0.7Vp-p/0.7Vp-p 50 mV
Frequency Response Ref 500KHz 5Hz~5.7MHz
Crosstalk @1MHz 45dB 40dB
S/N Ratio DVD 60dB
FM Tuner Section (FM ANT Impedance : 75 ohms) AM Tuner Section (AM Loop antenna) 1. STANDBY indicator
2. STANDBY / ON button 8. PLAY ( ) button
USA Version 87.5~108.0MHz USA Version 530~1710KHz
Tuning Range
Europe Version 87.5~108.0MHz
Tuning Range
Europe Version 522~1620KHz
3. DVD/VIDEO CD/MP3 CD/audio CD disc tray 9. STOP ( ) button
Scanning USA Version 100KHz Scanning USA Version 10KHz 4. Remote Control Sensor 10. PREV ( ) button
Frequency Interval Europe Version 50KHz Frequency Interval Europe Version 9KHz 5. Display 11. NEXT ( ) button
Usable Sensitivity, S/N=30dB,USA Version 2uV(17.2dBf)
Usable Sensitivity, S/N=20dB,USA Version 54 dBu 6. MASTER VOLUME control 12. FUNCTION button
75 ohms S/N=26dB,Europe Version 3uV(20.8dBf)
75 ohms S/N=20dB,Europe Version 54 dBu
Mono USA Version 70dB
S/N Ratio @1mV USA Version 40 dB
7. OPEN/CLOSE ( ) button 13. PHONES jack
S/N Ratio @1mV Mono Europe Version 70dB
IHF-A FILTER Stereo USA Version 65dB IHF-A FILTER Europe Version 40 dB
Stereo Europe Version 65dB
4 5
3. Location of Users Controls 3. Location of Users Controls
Rear Panel Remote Controller
1. STANDBY/ON button
2. OPEN/CLOSE button
3. MUTE button
S-VIDEO OUT
(DVD ONLY)
4. INPUT SELECTOR: DVD button
/ TV SYSTEM button
5. INPUT SELECTOR: TUNER(FM/AM) button
6. INPUT SELECTOR: VIDEO, TV/AUX button
7. FAST REVERSE(FR) ( ) button
8. SKIP PREV ( ) button
9. SPEAKER SETUP button
10. CH LEVEL button
1. AUDIO IN jacks 11. PLAY ( ) button
2. VIDEO IN jack 8. AM ANTENNA connector
12. STOP( ) button
3. MONITOR OUT jack 9. FM ANTENNA connector
13. MENU/RETURN button
4. DIGITAL OUTPUT jack 10. FRONT SPEAKER connectors
5. S VIDEO OUT jack 11. CENTER SPEAKER connectors 14. PAUSE/STEP button
6. SCART jack or COMPONENT VIDEO OUTPUT 12. WOOFER SPEAKER connector 15. Number buttons
Y/Pb/Pr jacks(Optional) 13. REAR SPEAKER connectors 16. DISPLAY/FM MODE button
7. Power cord 14. SUBWOOFER output jack 17. TEST TONE button
18. SUBTITLE button
Display 19. SLOW button
20. A-B REPEAT button
21. ANGLE button
22. RANDOM button
23. DIGEST/RDS MODE button
24. MPX/PTY SEARCH button
25. SLEEP button
26. FAST FORWARD(FF) ( ) button
27. SKIP NEXT ( ) button
28. MOVE / / / /ENTER buttons
1. Pro Logic indicator 29. SURROUND MODE button
2. DOLBY DIGITAL indicator 13. PLAY indicator 30. TITLE button
3. DTS indicator 14. PAUSE indicator 31. VOLUME / buttons
4. DVD indicator 15. TITLE indicator 32. SET-UP button
5. VCD indicator 16. CHAPTER indicator 33. GO TO/AUTO MEMORY button
6. MP3 indicator 17. TRACK indicator 34. DELAY TIME button
7. SLEEP indicator 18. DSP indicator 35. AUDIO button
8. REPEAT indicator 19. STEREO indicator 36. ZOOM button
9. ALL indicator 20. RANDOM indicator 37. REPEAT button
10. TOTAL indicator 21. MUTE indicator
38. PBC button
11. REMAIN indicator 22. PBC(Playback Control) indicator
12. RDS indicator 23. PLAYING INFORMATION display
6 7
4. Connecting to Equipment 4. Connecting to Equipment
Connecting to TV Connecting to 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.
MUSIC, MOVIE, STADIUM)
S-VIDEO OUT
(DVD ONLY)
S-VIDEO OUT
(DVD ONLY)
Connecting to AUDIO & VIDEO
S-VIDEO OUT
(DVD ONLY)
8 9
5. Trouble Shooting Guide 5. Trouble Shooting Guide
Basic Operating Mi-Com Circuit
Insert AC Power Cord. Push power on.
Insert AC Power Cord.
Does DVD appear
No
at VFD ?
Is STANDBY LED on? No Yes Check Power. No
Does loading appear
Check POWER No
Yes at VFD ? Yes
SUPPLY circuit(PT900,IC901)
Check connection
Check connector
CN700, CW712, CW902 No Yes Check loader.
Check Power Supply Circuit.
CW620, CN907
Turn Power on. Check Loader PCB.
if it normaly?
Does no DISC or
Yes time appear at VFD ? No
Check power
Yes supply circuit of No
regulator PCB.
Is POWER on? No Check if DVD an Audio
Recheck It. Check Loader PCB.
Micom interface is OK.
Yes Refer to Power
Supply Circuit.
Yes Check power supply circuit.
Check Oscillator
Check Mi-Com IC(IC750) No
of XC750.
Yes Replace XC750.
Does initial read work No
Check if IC400
Check Loader Power Pin3 is work? No
Yes Supply circuit.
Check Connection CN620,
CW713, CW610, CN907. Yes Check DVD Reset control.
Does it paly? No Check if Connector
No
CN703 are work?
Yes Check from Micom
Yes Check Loader circuit. to DVD interface.
Check Loader Pickup.
Check if IC750
No
Pin24 is High ?
Does it output audio? No
Yes Check Power down line.
Yes Check if IC750
No
Pin25 is High ?
OK Check AUDIO circuit. Yes
Replace IC750 Check Protection Circuit.
10 11
5. Trouble Shooting Guide 5. Trouble Shooting Guide
Front Circuit Audio Block
Insert AC Power Cord. MAIN VOLUME & REMOTE CONTROL
CHANNEL Level
Abnormal
Abnormal
1
LED ON No
Check if the
No Check if the IC750 No
IC300, IC400 is
PIN2 is OK.
OK.
Check if the Check if the
Yes No No
CW700 is OK ? POWER PART of the
FRONT is OK.
STANDBY ON Yes Yes
Yes Re connect it. Yes Refer to POWER
SUPPLY circuit.
Refer to FRONT PCB Refer to Loader PCB Refer to MICOM Refer to RMC
Check if the Check if the
FRONT POWER No IC750 PIN(22),(23) No
LED OFF No is OK. is OK.
Refer to POWER
Yes Yes
SUPPLY circuit.
Yes CW712 Pin(1) : 5V
Refer to
Check if the Refer to KEY-IN line
MICOM circuit.
IC750 OSC PIN wave- No Subwoofer output
form is OK. H/P outout Abnormal
Does initial work ? No Abnormal
Yes Replace XC750 2
Yes
Checkif the Checkif the
Check if the IC750 No IC404 PIN 1, 7 No IC400 PIN 36 No
PIN(72) is OK. Check if the
POWER PART of the No waveform is OK. waveform is OK.
FRONT is OK.
Yes Refer to POWER
SUPPLY circuit. Refer to H/P AMP IC404 Refer to VOL IC400
Yes Refer to Power Yes Yes
Supplycircuit.
Check if the FL700 No
PINS are OK Check if the
Check if ALL
BUTTONS are OK.
No 1 IC750 PIN(14) (15)
is OK.
No
Check if the
No
Checkif the
IC803 PIN 4 No
H/P Jacknis OK.
waveform is OK.
Yes
Check if the
Yes VR700,HR714,HR715 No
Refer to Check PATTERN and Yes
is OK. Replace H/P Jack Refer to SW AMP IC803
MICOM circuit. RESOLDERING. Yes Yes
Check if the
VOLUME is OK.
No 2 Yes
Refer to H/P
Control circuit
Check if the SW No
Yes Jack is OK
Refer to Replace VR700,
MICOM circuit. HR714, HR715
Check if the
HEADPHONE is OK. No Yes
Yes OK Replace SW Jack
Check if the
POWER is OK. No
Check if the
No
REMOCON is OK.
Refer to Power
Yes Supply circuit.
Check if the
POWER PART of the No
Yes FRONT is OK.
Check if the
J700 PIN(4) No
Yes Refer to Power is High.
Supply circuit.
Check if the Yes Check J700 circuit.
REMOCON waveform of No
the IC750 PIN(2)
Check if the Check if the
No HEADPHONE Jack No
IC700 PIN(1) is OK.
is OK.
Yes
Yes Yes
Front PCB OK Refer to Check RMC circuit.
Replace IC700 Check MAIN PCB Replace H/P JACK
MICOM circuit.
12 13
5. Trouble Shooting Guide 6. DVD Program Download Method
DVD Block
MPEG PROGRAM DOWNLOAD METHOD
SOUND Abnormal
INSERT THE UPDATE DISC INTO THE DISC TRAY, THEN THE DVD RECEIVER READS
THE DISC AND UPDATE THE FIRMWAFE ITSELF AS FOLLOWINGS.
Check Connection No
CW610 is OK.
Refer to Loader circuit.
@ INSERT THE UPDATE DISC.
Yes
NO STATUS VFD MONITOR SET CONDITION
Check if the
IC301, IC302, IC303 No
1 STARTING UPDATE DISC LOADING LOADING DOOR CLOSE
is OK.
Check Power Supply circuit. TRK FLASH
Yes 2 DETECT THE UPDATE DISC 000 0:00:00 ES6629.ROM DOOR CLOSE
READING
TRK
No
Check if the
SPK OUT is OK.
3 READ 000 0:00:00 WRITING/ERASE DOOR OPEN
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