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Daewoo DHC-XD350, Service Manual

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Daewoo DHC-XD350 Service Manual Download Page 26

8. Internal Block Diagram of ICs

DHC-XD350

L18 22

µ

H

L19 22

µ

H

C30 

1

µ

F

C20 

100nF

C99 

100nF

C101 

100nF

C107 

100nF

C106 

100nF

C23 

470nF

C55 

1000

µ

F

C21 

100nF

C58 

100nF

C58 

100nF

R57 
10K

R59 
10K

R63 

20

R98 

6

R100 

6

C53 

100nF

C60 

100nF

C31 

1

µ

F

C52 

330pF

R104 

20

C109 

330pF

15

M3

IN1A

IN1A

IBIAS

CONFIG

PWRDN

PWRDN

FAULT

TRI-STATE

TH_WAR

TH_WAR

+3.3V

IN1B

V

DD

V

DD

V

SS

V

SS

V

CC

SIGN

V

CC

SIGN

GND-Reg

GND-Clean

IN2A

IN1B

IN2A

IN2B

PROTECTIONS 

& 

LOGIC

REGULATORS

29

23

24

25

27

26

28

30

21

22

33

34

35

36

M2

M5

M4

17

16

OUT1A

GND1A

OUT1A

V

CC

1A

14

12

10

11

OUT1B

GND1B

OUT1B

V

CC

1B

13

L113 22

µ

H

L112 22

µ

H

C32 

1

µ

F

+V

CC

C108 

470nF

C33 
1

µ

F

7

M17

M15

M16

M14

8

9

OUT2A

GND2A

OUT2A

V

CC

2A

6

4

2

3

OUT2B

GND2B

D00AU1148A

OUT2B

V

CC

2B

5

19

31

20

GNDSUB

1

IN2B

32

C110 

100nF

C111 

100nF

R103 

6

R102 

6

STA500

26

All manuals and user guides at all-guides.com

all-guides.com

Summary of Contents for DHC-XD350

Page 1: ...DHC XD350 Digital Home Cinema System All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ... DATA WAVEFORM IN COMPONENT OUTPUT Y OUTPUT DATA WAVEFORM IN COMPONENT OUTPUT 8 INTERNAL BLOCK DIAGRAM OF ICs 23 30 9 BLOCK DIAGRAM 31 33 10 WIRING DIAGRAM 34 11 SCHEMATIC DIAGRAM 35 41 AM SCHEMATIC DIAGRAM FRONT SCHEMATIC DIAGRAM DDX SCHEMATIC DIAGRAM IO SCHEMATIC DIAGRAM MPEG DECODER SCHEMATIC DIAGRAM MPEG OUTPUT SCHEMATIC DIAGRAM REGULATOR SCHEMATIC DIAGRAM 12 PRINTED CIRCUIT DIAGRAM 42 48 FRON...

Page 3: ...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 it...

Page 4: ...all 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 ...

Page 5: ...ut Level Impedance Frequency Response Crosstalk S N Ratio Composite Video Video Composite 75 ohm S Video Y C 75 ohm DVD only Component Out Y Cb Cr Option Ref 500KHz 1MHz DVD 1Vp p 75 ohm 1Vp p 75 ohm 1Vp p 0 286Vp p 1Vp p 0 7Vp p 0 7Vp p 45dB 60dB 0 5 dB 0 5 dB 0 5 dB 0 5 dB 5Hz 5 7MHz 40dB POWER OUTPUT at 1 THD DIN TOTAL HARMONIC DISTORTION S N RATIO IHF A FILTER FRE RESPONSE LARGE DOLBY MODE SMA...

Page 6: ...TANDBY ON button 8 OPEN CLOSE button 9 PLAY button 10 STOP button 11 PRE button 12 NEXT button 13 FUNCTION button 14 PHONES jack Front panel 1 POWER ON OFF switch 2 DVD VIDEO CD MP3 CD audio CD disc tray 3 Remote Control Sensor 4 Display 5 MASTER VOLUME control 6 STANDBY indicator 7 STANDBY ON button 8 OPEN CLOSE button 9 PLAY button 10 STOP button 11 PRE button 12 NEXT button 13 FUNCTION button 1...

Page 7: ...ator 18 DSP indicator 19 PCM indicator 20 PBC Playback Control indicator 21 RDS indicator 22 TA TP indicator 23 STEREO indicator 24 MUTE indicator 25 RANDOM indicator 26 REPEAT indicator 27 INTRO indicator 7 1 COMPONENT VIDEO OUTPUT Y Cb Cr jacks or SCART jack Optional 2 S VIDEO MONITOR OUT jack 3 AUX IN jacks 4 VIDEO IN jack 5 VIDEO OUT jack 6 DIGITAL OUTPUT jack 7 CENTER SPEAKER connector 8 FRON...

Page 8: ...ton 14 PAUSE STEP button 15 Number buttons 16 DISPLAY FM MODE button 17 TEST TONE button 18 SUBTITLE button 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 29 SURROUND MODE button 30 TITLE button 31 VOLUME buttons 32 SET UP button 33 GO TO AUTO...

Page 9: ...ddition to the normal video connection The S video connection will provide higher quality picture playback for America version optional 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 All manuals and user guides at all guides com ...

Page 10: ...4 Connecting to Equipment Connecting to AUDIO VIDEO 10 DHC XD350 All manuals and user guides at all guides com ...

Page 11: ...e connections Front speakers Center speaker Surround Speakers 8 ohms min per speaker Subwoofer speaker 8 ohm min Surround speakers Surround speakers Center speaker Woofer speaker Front speakers Left ch Front speakers Right ch Left ch Right ch 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 s...

Page 12: ... Check Power down line Check if IC703 Pin6 7 8 is High Yes Check Protection circuit No No No Yes Yes 1 Does DVD appear at VFD Push power on Does loading appear at VFD Yes Does no DISC or time appear at VFD Yes Check if DVD an Audio Micom Interface is OK Yes Check from Micom to DVD Interface Check Power Check Loader Check MPEG PCB Yes Check Power Supply circuit No No No Check power supply circuit o...

Page 13: ...he FL700 PINS are OK Yes STANDBY ON No Yes Re connect it Refer to POWER SW PCB Refer to POWER SUPPLY circuit CN703 PIN3 5 6V PIN8 30V Refer to POWER SUPPLY circuit Refer POWER SUPPLY circuit Check IC703 PIN 98 99 100 OK Refer to MICOM circuit Refer to KEY IN line Check PATTERN and RESOLDING No No No No No Yes Yes No No Yes No Check if the POWER is OK Check if the J700 PIN 4 is High Check if HEADPH...

Page 14: ...No Yes Yes No Yes Yes No No Yes Check if the WC701 is OK Check if the CW507 waveform is OK Check if the CW503 PIN 1 to 7 waveform are OK Check if the CW203 PIN 1 to 7 waveform are OK Check if the IC211 PIN 4 7 9 12 waveform is OK Check if the IC212 PIN 4 7 9 waveform is OK Reconnect it Refer to Regulator circuit Refer to MPEG Decoder circuit IC501 Refer to CN203 Refer to MUX circuit IC211 Refer to...

Page 15: ...eck if the CW503 PIN 3 waveform is OK Check if the CW304 PIN 20 waveform is OK Check if the IC301 PIN 39 40 41 waveform are OK Check if the CW204 PIN 8 9 10 waveform are OK Reconnect it Refer to Regulator circuit Refer to IC302 IC309 Refer to MPEG Decoder circuit IC501 Refer to CN203 Refer to Regulator circuit IC302 IC309 Refer to Reset circuit Refer to connector Yes Yes No No No No No Yes Yes Yes...

Page 16: ... Control circuit Check if the IC202 PIN 37 is OK Check if the IC203 PIN 12 15 waveform are OK Check if the IC205 PIN 1 7 waveform are OK Check if the H P Jack is OK Refer to DDX IC202 Refer to DAC IC203 Refer to H P Amp IC205 Replace H P Jack Yes Yes No No No No Yes Yes H P output Abnormal Check if the IC101 PIN 37 is OK Check if the IC204 PIN 12 waveform is OK Check if the IC206 PIN 1 waveform is...

Page 17: ...A N o Yes Optical in OK Refer to Dir circuit IC304 AK4112 Optional in Abnormal with DSP option Check if the IC408 PIN 1 is OK Check if the IC408 PIN 3 is OK Refer to POWER SUPPLY circuit Yes Yes N o N o Check if the IC405 PIN 2 waveform is OK Check if the IC304 PIN 20 waveform is OK Replace OPTICAL IC Refer to 74HCU04 circuit IC405 Yes Yes N o N o Check if the IC407 PIN 1 waveform is OK Refer to P...

Page 18: ...02 PIN 35 waveform is OK OK Refer to MPEG circuit Refer to DSP circuit Check if the Micom interface is OK Refer to DDX circuit Refer to Front circuit Yes Yes N o No No Yes OPEN CLOSE Abnormal Check if the FRONT CONTROL is OK Check if the XC501 waveform is OK Check if the ATAPI Cable if is normally Check CN903 if is normally Check if the WC700 is OK Check IC517 Reconnect it Reconnect it Refer to Re...

Page 19: ... replace DECK MECHA DVD Yes Yes Yes Yes Yes Yes Yes N o N o N o N o N o N o N o DISC READ Abnormal Check if the CN706 is OK Check if the ATAPI Cable is normally Refer to PICK UP Unit or Replace DECK MECHA DVD Check POWER SUPPLY circuit Refer to IC302 BA5954FN or Replace DECK MECHA DVD Reconnect it Yes Yes N o N o Check if the IC302 PINS 1 26 is OK Refer to IC102 MT1388 Replace DECK MECHA DVD N o Y...

Page 20: ... 2 DETECT THE UPDATE DISC STOP MP3 BANK30 ROM DOOR CLOSE 3 READ THE DISC STOP MP3 WRITING 4 COMPLETED THE READ STOP MP3 DONE DOOR CLOSE 5 COMPLETED THE UPDATE STOP MP3 DOOR OPEN 1 DOOR CLOSE 6 END DISPLAY LOADING DOOR CLOSE 1 4 SEC NOTE 2 AFTER COMPLETED POWER OUT AND IN AGAIN 1 AFTER DOOR OPEN EJECT THE UPDATE DISC CAUTION WHILE DOOR OPEN IF CD DOOR IS CLOSED BY TOUCH OR POWER BUTTON IS PRESSED T...

Page 21: ...tput Signal Waveform Optical Output Audio Data Signal waveform L R Clock Data Waveform During Normal Play Serial Data Output Waveform During Normal Play 21 TEST POINT DVD TEST DISC MDVD W111 TRACK2 COLOR BAR All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 22: ... Output Cb Output Data Waveform in Component Output Y Output Data Waveform in Component Output 7 Waveforms of Major Check Method DHC XD350 TEST POINT DVD TEST DISC MDVD W111 TRACK2 COLOR BAR 22 All manuals and user guides at all guides com ...

Page 23: ...8 Internal Block Diagram of ICs DHC XD350 AK 4112A 23 All manuals and user guides at all guides com ...

Page 24: ...SDATA_ IN RXP RXN BICKI BIT_CL SDO_1 SDO_2 SDO_3 LRCKO B ICKO XTI XTO LEFT_A LEFT_B RIGHT_A RIGHT_B SLEFT_A SLEFT_B SRIGHT_A SRIG HT_B LFE_A LFE_B SCL SDA SA RAM ROM CKOUT 18 1 2 3 4 19 11 10 9 7 14 15 43 43 43 43 43 43 22 21 24 23 34 33 28 27 30 29 Power Down 44 35 EAPD PWDN STA304A 24 All manuals and user guides at all guides com ...

Page 25: ...8 Internal Block Diagram of ICs DHC XD350 CS4228A BA4560F 25 All manuals and user guides at all guides com ...

Page 26: ...H_WAR TH_WAR 3 3V IN1B VDD VDD VSS VSS VCCSIGN VCCSIGN GND Reg GND Clean IN2A IN1B IN2A IN2B PROTECTIONS LOGIC REGULATORS 29 23 24 25 27 26 28 30 21 22 33 34 35 36 M2 M5 M4 17 16 OUT1A GND1A OUT1A VCC1A 14 12 10 11 OUT1B GND1B OUT1B VCC1B 13 L113 22µH L112 22µH C32 1µF VCC C108 470nF C33 1µF 7 M17 M15 M16 M14 8 9 OUT2A GND2A OUT2A VCC2A 6 4 2 3 OUT2B GND2B D00AU1148A OUT2B VCC2B 5 19 31 20 GNDSUB ...

Page 27: ...UTA Analog Output A Serial Clock SCLK VA Analog Power ft Right Clock LRCK AGND Analog Ground Master Clock MCLK AOUTB Analog Output B SCL CCLK SCL CCLK REF_GND Reference Ground SDA CDIN SDA CDIN VQ Quiescent Voltage AD0 CS AD0 CS FILT Positive Voltage Reference CS4955 74VHC14 IEEE IEC 27 74VHC157 All manuals and user guides at all guides com ...

Page 28: ...SEL_PLL0 TSD1 SEL_PLL2 TDMFS TDMCLK TDMDR TDMTSC TWS SEL_PLL1 VCC LA4 LA5 LA6 LA7 LA8 LA9 VSS VCC LA10 LA11 LA12 LA13 LA14 LA15 LA16 VSS VCC LA17 LA18 LA19 TDMDX RSEL VSS TSD2 SPDIF_DOBM NC VSS MCLK TBCK VCC VCC VSS VSS DQM RSD RWS RBCK APLLCAP XIN XOUT VCC DSCK VSS DB15 DB13 DB11 DB1 VSS DRAS2 DRAS0 DOE DSCK_EN VCC DMA9 DMA7 VSS DMA5 DMA3 VCC DCS1 DB14 DB12 DB10 DB0 VCC DRAS1 DWE DCAS VSS DMA8 DM...

Page 29: ...8 Internal Block Diagram of ICs DHC XD350 HY57V161610DTC 8 29 All manuals and user guides at all guides com ...

Page 30: ...8 Internal Block Diagram of ICs DHC XD350 LA7952 NJM4558M NJU7313A 30 All manuals and user guides at all guides com ...

Page 31: ...9 Block Diagram 31 DHC XD350 MAIN BLOCK All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 32: ...9 Block Diagram 32 DHC XD350 IN OUT BLOCK All manuals and user guides at all guides com ...

Page 33: ...9 Block Diagram 33 DHC XD350 REGULATOR BLOCK All manuals and user guides at all guides com ...

Page 34: ...00MM 1 0P 25PIN 370MM 1 0P 13PIN 100MM 1 0P 11PIN 220MM 1 0P 6PIN 150MM 1 0P 8PIN 220MM 1 0P 9CD6587200 XD350 10 Wiring Diagram 34 S N 9CD6587200 XD350 S N 9CD6586601 XD300 9CD6587201 XD350 All manuals and user guides at all guides com ...

Page 35: ...11 Schematic Diagram 35 DHC XD350 AMP All manuals and user guides at all guides com ...

Page 36: ...11 Schematic Diagram 36 DHC XD350 FRONT All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 37: ...11 Schematic Diagram 37 DHC XD350 DDX All manuals and user guides at all guides com ...

Page 38: ...11 Schematic Diagram DHC XD350 IO 38 All manuals and user guides at all guides com ...

Page 39: ...11 Schematic Diagram DHC XD350 MPEG DECODER IC501 ES4408 4438 39 All manuals and user guides at all guides com ...

Page 40: ...11 Schematic Diagram 40 MPEG OUTPUT DHC XD350 All manuals and user guides at all guides com ...

Page 41: ... REGULATOR DHC XD350 11 Schematic Diagram 41 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 42: ...1 2 BOTTOM View Front PCB 1 1 TOP View 12 Printed Circuit Diagram 42 1 DHC XD350 Front PCB All manuals and user guides at all guides com ...

Page 43: ...2 BOTTOM View IO PCB 1 TOP View 12 Printed Circuit Diagram 43 All manuals and user guides at all guides com ...

Page 44: ...2 BOTTOM View MPEG PCB 1 TOP View 12 Printed Circuit Diagram 44 All manuals and user guides at all guides com ...

Page 45: ...DHC XD350 MAIN PCB 12 Printed Circuit Diagram 45 1 TOP View All manuals and user guides at all guides com ...

Page 46: ...DHC XD350 MAIN PCB 12 Printed Circuit Diagram 46 2 BOTTOM View All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 47: ... STANDBY PCB DHC XD350 12 Printed Circuit Diagram 47 REGULATOR PCB DHC XD350 All manuals and user guides at all guides com ...

Page 48: ...1010000 5 4 9 6 7 8 SCREW TAP COVER TOP SCREW TAP PCBA MAIN AY T COVER PCBA MAIN AY LOADING COVER BTM V2 1 MS NZ 3 T2WS 1 7X5 0X8 0 MS MS NZ NZ 2 1 3 1 1 1 T2PA 2 6X6 0X6 5 T2PA 2 6X6 0X6 5 A C B EMT100001000 EMT200000000 EPU100002000 SPINDLE MOTOR P U EMT200000000 D MOTOR GEAR MOTOR GEAR ESW055001100 DETECTOR SWITCH E 48 DHC XD350 All manuals and user guides at all guides com ...

Page 49: ...14 Exploded View and Mechanical Parts List DHC XD350 49 All manuals and user guides at all guides com ...

Page 50: ...00 ACRYL 1 16 MECHANISM DVD 9CD6010300 1 17 HEAT SINK 9CD4406900 AL 1 18 HEAT SINK TR 9CD4407100 AL 1 19 HEAT SINK IC 9CD4407000 BsP 1 20 HEAT SINK DIODE 9CD44066D0 AL 2 21 PLATE SPEAKER 9CD0912600 PC 1 22 CUSHION FOOT 9CD4209000 RUBBER 4 23 RUBBER SILICON 9CD4209100 RUBBER 6 24 SPRING GROUND 9CD3009000 BsP 1 25 CUSHION FOOT 9CD4207700 RUBBER 6 26 BADGE DAEWOO 9CD1502500 AL 1 S1 SCREW TAPPING 7173...

Page 51: ...MF 5X11 TP O O 27 R CHIP HR701 702 HRFT101JBA 1 10 100 OHM J 1608 O O 7 C ELECTRO CE413 CEXF1C471V 16V RSS 470MF 8X12 TP O O 28 R CHIP HR703 HRFT100JBA 1 10 10 OHM J 1608 O O 8 C ELECTRO CE414 CEXF1E101V 25V RSS 100MF 6 3X11 TP O O 29 R CHIP HR704 705 HRFT103JBA 1 10 10K OHM J 1608 O O 9 C ELECTRO CE415 CEXF1C471V 16V RSS 470MF 8X12 TP O O 30 R CHIP HR706 HRFT101JBA 1 10 100 OHM J 1608 O O 10 C EL...

Page 52: ...1H100V 50V RSS 10MF 5X11 TP O O 57 R CHIP HR432 HRFT680JBA 1 10 68 OHM J 1608 O O 20 C ELECTRO CE238 CEXF1E470V 25V RSS 47MF 5X11 TP O O 58 R CHIP HR433 HRFT473JBA 1 10 47K OHM J 1608 O O 21 C ELECTRO CE239 CEXF1H479V 50V RSS 4 7MF 5X11 TP O O 59 R CHIP HR434 HRFT391JBA 1 10 390 OHM J 1608 O O 22 C ELECTRO CE240 242 CEXF1E470V 25V RSS 47MF 5X11 TP O O 60 R CHIP HR435 HRFT750JBA 1 10 75 OHM J 1608 ...

Page 53: ...O O 122 R CHIP HR271 HRFT471JBA 1 10 470 OHM J 1608 O O 71 R CHIP HL201 204 HRFT000 BA 1 10 0 OHM 1608 O O 123 R CHIP HR272 274 HRFT220JBA 1 10W 22 OHM J 1608 O O 72 R CHIP HL205 206 HRFT100JBA 1 10 10 OHM J 1608 O O 124 R CHIP HR275 277 HRFT000 BA 1 10 0 OHM 1608 O O 73 R CHIP HL207 HRFT000 BA 1 10 0 OHM 1608 O O 125 R CHIP HR278 280 HRFT220JBA 1 10W 22 OHM J 1608 O O 74 R CHIP HL211 221 HRFT000 ...

Page 54: ...J 1608 O O 68 R CHIP HR608 HRFT101JBA 1 10 100 OHM J 1608 O O 17 C CHIP CERA HC528 HCQK330JBA 50V CH 33PF J 1608 O O 69 R CHIP HR609 HRFT201JBA 1 10 200 OHM J 1608 O O 18 C CHIP CERA HC534 538 HCQK330JBA 50V CH 33PF J 1608 O O 70 COIL CHIP HR610 HLC479J03A 4 7UH CHIP 2012 O O 19 C CHIP CERA HC539 HCBK104KBA 50V X7R 0 1MF K 1608 O O 71 R CHIP HR611 HRFT000JBA 1 10 0 OHM J 1608 O O 20 C CHIP CERA HC...

Page 55: ... GLASS TUBE F981 5FSGB2022L SEMKO TL 2A 250V MF51 O O 10 C ELECTRO CE909 910 CEXF1E102V 25V RSS 1000MF 13X20 TP O O 10 HOLDER FUSE CLIP FC981 982 9734600800 PI5 2 REEL O O 11 C ELECTRO CE911 912 CEXF1E101V 25V RSS 100MF 6 3X11 TP O O 11 TRANS POWER SUB PT981 5TP8028875 EI 28X12 230V 50HZ O O 12 C ELECTRO CE913 918 CEXF1H470V 50V RSS 47MF 6 3X11 TP O O 12 TRANS POWER MAIN PT991 5TP8066876 EI 66X80 ...

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