S/N No. : 9CD8302600
Service Manual
MiniDigitalComponeHome Cinemat SystemSystem
Model: HC-4130X
HC-4100() Series
HC-4200() Series
DAEWOO DAT CO., LTD.
JUNFEB. .20004
DIGITAL HOME CINEMA SYSTEM
HC-4130X
Contents
1. SAFETY PRECAUTIONS...................................................... |
1/2 |
2. SPECIFICATIONS.................................................................... |
3 |
3. LOCATION OF USERS CONTROLS.................................... |
4/6 |
FRONT PANEL |
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REAR PANEL |
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DISPLAY |
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REMOTE CONTROLLER |
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4. CONNECTING TO EQUIPMENT........................................... |
7/8 |
CONNECTING TO TV |
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CONNECTING TO AUDIO & VIDEO |
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CONNECTING TO SPEAKER |
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CONNECTING TO RECORDING EQUIPMENT |
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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 |
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SMPS |
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10. WIRING DIAGRAM.......................................................... |
40/41 |
11. SCHEMATIC DIAGRAM.................................................. |
42/47 |
DVD Processor Section
DVD RF Section
Video & Analog Audio Section
DDX Section
PWM Amp. Section
Front Section
SMPS
12. EXPLODED VIEW AND MECHANICAL PARTS LIST ..48/49
MECHANICAL EXPLODED VIEW MECHANICAL PARTS LIST
13. ELECTRICAL PARTS LIST...................................... |
Appendix |
ELECTRICAL PARTS LIST |
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ELECTRICAL PARTS LIST [OPTION LIST] |
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1. Safety Precautions
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCKS
DO NOT OPEN
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 appliance 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.
1
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.
EXAMPLE OF ANTENNA |
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GROUNDING |
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ANTENNA LEAD |
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GROUND CLAMP |
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IN WIRE |
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ANTENNA DISCHARGE UNIT |
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(NEC SECTION 810-20) |
ELECTRIC |
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GROUNDING CONDUCTORS |
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(NEC SECTION 810-21) |
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SERVICE |
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EQUIPMENT |
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GROUND CLAMPS |
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POWER SERVICE GROUNDING |
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ELECTRODE SYSTEM |
NEC - NATIONAL ELECTRICAL CODE (NEC ART 250 PART H)
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.
2
2. Specifications
Power supply
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Operation Voltage |
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AC 230V / 50Hz |
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Power output Table
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Power output at 10%THD(RMS) |
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Model |
Front/Center |
Woofer |
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Remark |
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/Rear |
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HC-4130 |
30 W, 6 ohm |
50 W, 6 ohm |
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Same to |
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“ |
” Series |
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3
3. Location of Users Controls
Front Panel : HC-4130X
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
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1. STANDBY/ON button with LED lamp |
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7. STOP ( |
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) button |
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2. DISC TRAY |
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8. PREV ( |
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) button |
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3. Remote Control Sensor |
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9. NEXT ( |
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) button |
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4. OPEN/CLOSE ( |
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) button |
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10. FUNCTION button |
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5. Display |
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11. MASTER VOLUME Control |
|||||||||||||||||||||||||
6. PLAY ( |
) button |
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12. PHONES jack |
3. Location of Users Controls
Rear Panel
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
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1. Power cord |
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10. DIGITAL OUTPUT jackj |
||||||||||||||||||||||||||||||
2. FM ANTENNA connector |
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11. VIDEO IN jacks |
||||||||||||||||||||||||||||||
3. SUBWOOFER SPEAKER connectors |
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12. VIDEO OUT jacks |
||||||||||||||||||||||||||||||
4. CENTER SPEAKER connectors |
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13. S VIDEO MONITOR OUT jack |
||||||||||||||||||||||||||||||
5. REAR-L SPEAKER connectors |
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14. COAXIAL INPUT jack |
||||||||||||||||||||||||||||||
6. REAR-R SPEAKER connectors |
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15. SUBWOOFER OUTPUT A/B connectors |
||||||||||||||||||||||||||||||
7. FRONT-L SPEAKER connectors |
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16. COMPONENT VIDEO OUTPUT Y/Pb/Pr jacks (Optional) |
||||||||||||||||||||||||||||||
8. FRONT-R SPEAKER connectors |
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17. MONITOR OUT jack |
||||||||||||||||||||||||||||||
9. DIGITAL INPUT jack |
|
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18. SCART jack |
Display
|
3 |
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5 |
7 |
9 |
11 |
12 |
14 |
16 |
17 |
19 |
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22 |
1 |
2 |
4 |
6 |
8 |
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10 |
13 |
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15 |
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18 |
20 |
21 |
23 |
24 |
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25 |
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26 |
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|
1. DOLBY DIGITAL indicator |
14. REPEAT indicator |
2. Pro Logic II indicator |
15. RANDOM indicator |
3. DTS indicator |
16. ALL indicator |
4. TITLE indicator |
17. TOTAL indicator |
5. DVD indicator |
18. MUTE indicator |
6. CHAPTER indicator |
19. REMAIN indicator |
7. VCD indicator |
20. PBC(Playback Control) indicator |
8. TRACK indicator |
21. EQ indicator |
9. MP3 indicator |
22. PBC(Playback Control) indicator |
10. DSP indicator |
23. RDS indicator |
11. DRC indicator |
24. PAUSE indicator |
12. SLEEP indicator |
25. PLAY indicator |
13. STEREO indicator |
26. Multi-Function Information Displaying Area |
5
3. Location of Users Controls
Remote Controller
1 |
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|
2 |
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3 |
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|
5 |
4 |
|
6 |
7 |
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8 |
9 |
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10 |
11 |
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12 |
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11 |
ENTER |
11 |
11 |
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13 |
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14 |
15 |
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16 |
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13 |
17 |
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19 |
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18 |
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20 |
21
4 |
5 |
22 |
23 |
24 |
26 |
25 |
27 |
28 |
30 |
29 |
31 |
32 |
34 |
33 |
35 |
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
6
4. Connecting to Equipment
Connecting to TV
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)
for EU version: optional
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.
Connecting to Audio & Video
|
Audio/Video |
|
|
|
|
connection |
|
|
|
|
cable |
|
|
S Video |
|
|
|
|
|
|
|
|
|
connection cable |
output audio To |
output video To |
input audio To |
input video To |
video S To |
|
|
|
|
input |
7
4. Connecting to Equipment
Connecting to Speaker
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.
Front speaker |
Center speaker |
Front speaker |
||||
|
Right ch. |
|
|
Left ch. |
||
|
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|
GREEN |
RED |
BLUE |
BROWN |
GRAY |
|
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|
YELLOW |
|
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|
|
|
|
Audio Input |
Audio Input |
|
|
|
Active subwoofer A |
Active subwoofer B |
Right ch. |
|
Left ch. |
[USER Optional] |
[USER Optional] |
Surround speaker |
Woofer speaker |
Surround speaker |
|
|
Connecting to Recoring Equipment
8 |
5. Firmware Upgrade
Preparing 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.
• HC-4130()
-Basic : A30_8.ROM
-DivX : A30A_16.ROM
Activating the Firmware Upgrade
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.
VOLUME
PHONES
DISC LOADING
Starting Update.
1.Detect the Update Disc.
2.Display for Update Version.
•Basic Version : HC-4130 (A30_8.ROM)
• DivX Version : HC-4130 |
(A30A_16.ROM) |
FLASH |
A50A_16.ROM |
9
5. Firmware Upgrade
Read the Disc, Checksum Check and Update New Firmware.
READING OK |
FLASH |
|
CHECKSUM OK |
ERASE/WRITE |
|
Caution
•While updating, if the door opened or closed by touch, or power button is pressed, the Flash Memory will be damaged.
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.
DONE
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.
Firmware Firmware Flash
Model Version Size
10
6. Trouble Shooting Guide
Audio Part
1. BASIC OPERATING
START
Is Standby LED
on?
Yes
Turn Power on.
Is Power on?
Yes
Does Initial read work?
Yes
Does It Play?
Yes
Does It Output
Audio?
Yes
OK
No
Check Power Supply Circuit.
Check Connection CN701.
No
Check DVD Processor Circuit.
IC501 Block.
No
Check DVD Mechanism.
Check RF Circuit IC301.
No
Check DVD Region.
Check RF Circuit IC301.
No
Check Audio Section.
11
6. Trouble Shooting Guide
Front Circuit
1. INITIAL OPERATING
|
START |
|
Is Standby |
|
LED on? |
|
Yes |
|
No |
|
Is Power on? |
1 |
Yes |
2 |
|
No
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 interface of VFD Driver
Yes
Check interface of SDRAM
Yes
No
Check Connection CN701.
Check Power Supply.
No
Replace Reset IC.
IC508.
No
Check DVD Power Supply
Section, PT902.
Replace Crystal, XC501.
No
Check Devices connected I2C Line.
IC201, IC401, IC408.
No
Check VFD Data Interface.
VFD_DATA/CLK.
Replace Front PCB Ass’y.
No
Check CLK of SDRAM.
Replace Flash Memory.
Initial Operation OK.
12
6. Trouble Shooting Guide
Front Circuit
1
Check if pwr_on of IC208 is high?
Yes
No |
Check if protect |
|
|
of IC207 is |
|
|
high? |
|
|
|
|
|
Yes |
|
|
|
|
|
|
|
Check Protect Sencing
2
Circuit. IC206.
No |
|
|
||
|
|
|
|
|
Check if display |
No |
|||
of Logo on TV? |
|
|
||
|
|
|
|
|
|
|
|
Check Connection between |
|
Yes |
|
|
Main and Mechanism. |
|
|
Replace DVD Mechanism. |
|||
|
|
|
||
|
|
|
||
Check I2C Line |
No |
|||
of IC504. |
|
|
|
|
|
|
|
|
|
|
|
|
Check Devices connected I2C |
|
Yes |
|
|
Line. |
|
|
|
IC201, IC401, IC408. |
||
|
|
|
||
|
|
|
||
Check interface |
No |
|||
of VFD Driver |
|
|
|
|
|
|
|
|
|
|
|
|
Check VFD Data Interface. |
|
Yes |
|
|
VFD_DATA/CLK. |
|
|
|
Replace Front PCB Ass’y. |
||
|
|
|
||
|
|
|
||
Check interface |
No |
|||
of SDRAM |
|
|
||
|
|
|
|
|
Yes |
|
|
Check CLK of SDRAM. |
|
|
|
|||
|
Replace Flash Memory. |
|||
|
|
|
|
|
13
6. Trouble Shooting Guide
Audio Part
3. AUDIO Abnormal
Audio Abnormal of
DVD Function
1 Video Input Function.
2 Tuner Input Function.
3 Digital Audio Input Function.
Check if the I2S |
|
No |
|||
output of IC501 |
|
|
|
||
is ok? |
|
|
|
||
|
Replace IC501. |
||||
Yes |
|
|
|||
|
|
||||
|
|
|
|
||
|
|
|
|
|
|
Check if the I2S |
|
No |
|||
input of IC201 |
|
|
|
||
is ok? |
|
|
|
||
|
|
|
|||
Yes |
|
|
Check Schmitt Triger IC. |
||
|
|
||||
|
|
IC204, IC205. |
|||
|
|
|
|||
Check if the |
|
|
|
||
No |
|||||
PWM output of |
|||||
|
|
|
|||
IC201 is ok? |
|
|
|
||
|
|
|
Yes
Check if the PWM output of
Digital Amp is ok?
Yes
Check if Speaker Output is ok?
|
Check if |
|
No |
||||
|
suppled power |
|
|
||||
|
|
|
|
|
|||
|
is ok? |
|
|
|
|||
|
|
|
|
||||
|
Yes |
|
|
|
|
Check Regulator Circuit. |
|
|
|
|
|
||||
|
|
|
|
|
IC202. |
||
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
Check if EAPD |
|
|
No |
|
||
|
|
|
|||||
|
is high? |
|
|
|
|||
|
|
|
|
|
|
|
|
|
Yes |
|
|
|
|
Check PLL Circuit of IC201. |
|
|
|
|
|
|
|||
|
|
|
|
|
|
||
|
|
|
No |
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Check Bias Voltge 3.3V of IC801 to IC804.
Check short between Signal to GND or VCC.
No
Yes |
|
Check LPF L801 to L812. |
|
||
|
|
|
|
|
|
|
|
|
OK
14
6. Trouble Shooting Guide
Audio Part
3. AUDIO Abnormal
Audio Abnormal of
Video Input Function
Check if the I2S |
No |
output of IC401 |
|
|
|
is ok? |
|
|
Yes
Check if the TDM input of IC501 is ok?
Check if I2C |
No |
|||
between IC501 |
|
|||
|
|
|
||
|
|
|
||
is ok? |
|
|
||
|
|
|||
Yes |
|
|
Check I2C Line. |
|
|
|
|||
|
|
|
||
|
|
|
|
|
|
|
|
|
|
Check if I2S |
No |
|
between IC406 |
||
|
||
|
||
is ok? |
|
|
|
Yes
Check I2S output of IC406.
Check Crystal XC401.
No
Check IC406 DAUX output.
Check I2S Format of TDM Port.
IC501 pin 101 to 103.
Yes
1
15
6. Trouble Shooting Guide
Audio Part
3. AUDIO Abnormal
Audio Abnormal of
Tuner Function
Check if the |
No |
|
|
|
|
||||||
Data Interface |
|
|
|
|
|
|
|
|
|
||
is ok? |
|
|
|
|
|
|
|
|
|
||
Yes |
Check if the |
No |
|||||||||
Tuner data is |
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|||||
|
|
ok? |
|
|
|
|
|||||
|
|
|
|
|
|
||||||
|
|
|
|
|
|
|
Check IC207 Data Interface |
||||
|
|
|
|
|
|
|
|||||
|
|
Yes |
|
|
|
|
Stereo, Tuned, PLL_CE. |
||||
|
|
|
|
|
|
|
|||||
|
|
|
|
|
|||||||
|
|
Check if the |
No |
||||||||
|
|
RDS data is |
|
|
|
|
|
||||
|
|
|
|
|
|
|
|||||
|
|
ok? |
|
|
|
|
|||||
|
|
|
|
|
|
||||||
|
|
|
|
|
|
|
Check IC501 Data Interface |
||||
|
|
|
|
|
|
|
|||||
|
|
|
|
|
|
|
RDS_CLK, RDS_DATA |
||||
Check if the I2S |
No |
|
|
|
|
||||||
|
|
|
|
||||||||
output of IC401 |
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|||
is ok? |
|
|
|
|
|
|
|
|
|
||
Check if I2C |
No |
||||||||||
Yes |
|||||||||||
between IC501 |
|
|
|
|
|
|
|||||
|
|
|
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is ok? |
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Yes |
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Check I2C Line. |
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Check if I2S |
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between IC406 |
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is ok? |
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Yes
Check I2S output of IC406.
Check Crystal XC401.
Check if the |
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TDM input of |
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IC501 is ok? |
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Check IC406 DAUX output. |
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Check I2S Format of TDM Port. |
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IC501 pin 101 to 103. |
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2
16
6. Trouble Shooting Guide
Audio Part
3. AUDIO Abnormal
Audio Abnormal of Digital |
OPTICAL INPUT & COAXIAL INPUT |
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Audio Input Function |
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Input Select is |
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ok? |
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Check if the |
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Data interface |
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is ok? |
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Yes |
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Check IC207 Data Interface |
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DATA, CLK, 41 17_CS |
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Check if the I2S |
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output of IC407 |
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is ok? |
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No |
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Check if the |
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OSC waveform |
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is ok? |
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Yes |
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Check Crystal XC401. |
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Check if the TDM input of IC501 is ok?
Yes
No
Check IC406 CDTO output. Check I2S Format of TDM Port. IC501 pin 101 to 103.
3
17
6. Trouble Shooting Guide
Audio Part
4. AUDIO LINE OUTPUT Abnormal
Audio Abnormal of
H/P Output
Check if the output of IC501 pin121 is ok?
Yes
Check if the output of IC408 is ok?
Yes
Check if the
Signal waveform of
IC410 is ok?
Yes
Check if H/P Output of Jack is ok?
Yes
OK
No
Replace IC501.
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No |
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Check if I2S |
No |
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between IC501 |
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is ok? |
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Yes |
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Check I2S Line. |
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Check if VQ & |
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No |
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FILT+ is ok? |
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Check PLL Circuit of IC408. |
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Yes |
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Replace DAC, IC408 |
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No
Check TR of Mute Circuit.
Check Mutec Port of IC408.
No
Check Connection CN701.
18
6. Trouble Shooting Guide
Audio Part
4. AUDIO LINE OUTPUT Abnormal
Audio Abnormal of
Rec Output
Check if the output of IC501 pin121 is ok?
Yes
Check if the output of IC408 is ok?
Yes
Check if the Signal waveform of IC401 is ok?
Yes
Check if REC Output of Jack is ok?
Yes
OK
No
Replace IC501.
No |
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Check if I2S |
No |
||||
between IC501 |
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||
is ok? |
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|||
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||||
Yes |
|
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Check I2S Line. |
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Check if VQ & |
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No |
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FILT+ is ok? |
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Yes |
Check PLL Circuit of IC408. |
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Replace DAC, IC408 |
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No |
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Check IC409 Buffer.
No
Check Function IC, IC401
19