Daewoo DS-2000N Service Manual Download Page 16 | Manualshive

Page: 16 / 47

background image

Havepicture, no sound

Check if voltage o f R , L p i n

of XP202 is normal

Is N202 and N203signal

output?

Istransistor V208 and

V209 for mute usage

brokendown?

Normal

Replace transistor

Check 4558andsurrounding components

Check connectionbetween R, L pinofXP202

and PCM1723

Yes

Yes

Yes

No

No

No

F

Audio abnormal

11

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Summary of Contents for DS-2000N

Page 1: ...SERVICE MANUAL MODEL DS 2000N CAUTION Before servicing this chassis read the PRODUCT SAFETY SERVICE FOR VIDEO PRODUCTS section on page 2 of this manual DVD and CD PLAYER ...

Page 2: ...nnel Separation Dynamic range Video outputs S video outputs Audio outputs digital audio Audio outputs analog audio OUTPUTS NTSC AUTO PAL wavelength 650nm 20Hz 20kHz 85dB 80dB 1kHz 90dB 1kHz 85dB 1kHz 1 0V p p 75ohm negative sync Y 1 0V p p C 0 286V p p 75ohm negative sync 0 5V p p 75ohm 2 0V rams 1KHz 0 8dB 10Kohm AC120V 60Hz 20W 435 x 90 x 280 mm 5 40 Around 4kgs SEPECIFICATION ...

Page 3: ...COVERTHESUBJECTOF 2 ONLYFACTORY SPECIFIEDC R T ANODE CONNECTORS MUST BEUSED DEGAUSSINGSHIELDSALSOSERVEASANX RAYSHIELDINCOLORSETS ALWAYSRE INSTALLTHEM 3 IT IS ESSENTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN ACCURATEANDRELIABLE HIGHVOLTAGE METER THECALIBRATION OF THE METER SHOULD BE CHECKED PERIODICALLY AGAINST A REFERENCE STANDARD SUCH AS THE ONE AVAILABLE AT YOUR DISTRIBUTOR 4 WHENTHEHIGHVOLTAG...

Page 4: ...Procedure Caution Note 1 ElectrostaticallySensitive ES Devices Some semiconductor solidstate devicescan bedamaged easily by static electricity Such components commonly are called ElectrostaticallySensitive ES Devices Examplesof typical ES devices are integrated circuits and some field effecttransistorsandsemiconductorchipcomponents Thefollowingtechniquesshouldbeused tohelpreducethe incidenceofcomp...

Page 5: ...LECTRICAL ADJUSTMENTS 3 ELECTRICAL TROUBLE SHOOTING GUIDE 4 WAVEEFORMS ON VIDEO CIRCUIT 5 ACTION OF PORT 6 VOLTAGE CHART 7 CIRCUIT DIAGRAM 8 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW 9 DISASSEMBLY 10 ELECTRICAL PARTS LIST 4 5 16 22 26 30 34 40 41 ...

Page 6: ...3 7 4 5 1 2 8 9 6 FRONT PANEL POWER DISC TRAY PLAY STOP SKIP SEARCH PAUSE DISPLAY 1 2 4 5 6 7 8 9 1 3 1 CONTROLS AND FUNCTIONS OPEN CLOSE REMOTE SENSOR ...

Page 7: ...track indicator hour indicator minute indicator second indicator resume indicator disc recording format 1 2 3 4 5 6 7 8 9 10 Press DIMMER the brightness of the display is reduced by half press it once more the display becomes dark Press the button again the display resumes brighness DISPLAY REAR PANEL AUDIO OUT1 R AUDIO OUT1 L VIDEO OUT1 AUDIO OUT2 R AUDIO OUT2 L VIDEO OUT2 S VIDEO COAXIAL OPTICAL...

Page 8: ...R PREV NEXT SKIP SEARCH STOP DIRECTIONS SYSTEM LANGUAGE MUTE VOLUME SUBTITLE AUDIO MODE A B REPEAT REPEAT MENU PAUSE STEP SLOW PLAY ZOOM REMAIN RESUME TIME SEARCH DIGEST PLAY MODE ANGLE OPEN COLSE REMOTE TRANSMITTER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 NAMES AND LAYOUT OF REMOTE CONTROLS 3 1 ...

Page 9: ...2 ELECTRICAL ADJUSTMENTS ALL CIRCUITS NEEDN T ADJUST IF YOU FIND CLOCK 27 000MHz IS CHANGED ONLY TRIM CAP C004 BESIDE THE CRYSTAL OSC G102 4 ...

Page 10: ...isc be read Isvideonormal Is audio normal Normal operation Setting of the unit iscorrect Refer to audio guide Refer to video guide Refertoreaddisc guide Refertoopen close guide Refertodisplay guide Refer to power guide 3 Electrical Trouble Shooting Guide Yes Yes Yes Yes Yes Yes No No No No No No 5 ...

Page 11: ...sformeris damaged Checksecondary commutecircuit Check secondaryfeedback circuit Check if secondary short Check V304 Replace N301 Are transformer secondary 6V 15V output Are2 3pinofN301resistance highimpedance Check regulatedcircuit Check N302 andperipheral components Yes Yes Yes Yes Yes No No No No No A Power Circuit abnormal Check commute circuit Check L301 andL302 6 ...

Page 12: ...F2is3 3V Check if voltage of 34 pin of UPD16311is 24V Check groundednegativevoltage of screen F1 and F2 Replace UPD16311 Check if connectioncordbetweenscreen and mainboard is broken Check if UPD16311pinisconnected Check if pin of screen is connected Yes Yes No No B Display abnormal 7 ...

Page 13: ...C Open close abnormal 8 ...

Page 14: ...DISC IN Normal Focus on Doesthediscturn Islasernormal Can TOC beread Refer to focus guide Refer to focus guide Refer to laser guide RefertoTOC guide Yes Yes Yes Yes No No No No D Read disc abnormal 9 ...

Page 15: ...r disappearedduring playback Havepicture but picture disappearedduring playback Checkconnectionbetween video encoder and XS109 Checkjack of output board or replace mainboard Check main boardandreplace G102 27MHz Check main board andreplace G102 27MHz Replace main board Yes No E Video abnormal 10 ...

Page 16: ...P202 is normal Is N202 and N203signal output Istransistor V208 and V209 for mute usage brokendown Normal Replace transistor Check 4558andsurrounding components Check connectionbetween R L pinofXP202 and PCM1723 Yes Yes Yes No No No F Audio abnormal 11 ...

Page 17: ...pin of CXD3008Q and FCS FCS of XS100 2 Check if G101 G102 normal operation 3 Check CXD3008Q and peripheral components 1 Check connection between CXD1866 and CXD3008 2 Check CXD1866andperipheral components 1 Check connection between CPU and CXD1866 2 Check CPU and peripheral components 1 Check connection cord 2 Replace pickup Yes No Yes Yes Yes No No No G Focus abnormal 12 ...

Page 18: ...pin7 1 Checkconnectionbetweenpickup and mainboard 2 Replace pickup 1 Check connection between CXD1889 of pin LD and XS100 2 Check CXD1889andperipheral components 1 Checkconnection between CPU pin 7 and CXD1889 pin25 2 Check CPU andperipheral components Yes Yes No No No Yes H Laser abnormal 13 ...

Page 19: ... pin 24 31 pin of D108 is normal 1 Check connections between CPU address bus data bus and CXD1866 2 Check CPUandperipheral components 1 Check connections between CXD1866 pin 144 and BA5983 pin 6 2 Check CXD1866andperipheral components 1 Check connections between BA5983 and XS103 2 Check BA5983 andperipheral components Check connection of mechanism Yes Yes Yes Yes No No No No I Turn abnormal 14 ...

Page 20: ...eral components 4 Check connection between SVD3811 and BT865 1 Checkconnection between57pinof CXD1899andXS100pin 2 Checkconnection between XS100 and pickup 3 Replace pickup 1 Refer to laser guide 2 Check slide motor and connections to main board 1 Check ATAPI channel 2 Check SVD3811 andperipheral components 3 Check BT865andperipheral components 4 Check connection between SVD3811 and BT865 Yes Yes ...

Page 21: ...4 WAVEFORMS ON VIDEO CIRCUIT 16 ...

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Page 26: ...21 ...

Page 27: ...VBS G AGND 8 CVBS B O 9 C R AGND 10 CVBS G O 11 Y CVBS AGND 12 C R O 13 Y CVBS O 14 RGBOUT I 15 FIELD O 16 21 24 25 Y 0 7 I 22 36 45 GND 23 37 46 ADD 26 ALTADDR I 27 TTXDAT I 28 35 P 0 7 I 38 TTXRREQ O 39 SLEEP I 40 SDA I O 41 SCL I 42 SLAVE I 43 CLK I 44 VDD3V I 47 RESET I 48 BLANK I 49 VSYNC I O 50 HSYNC I O 51 52 AGND 22 ...

Page 28: ...I O 28 MDB9 I O 29 MDBA I O 30 VSS 31 MDBB I O 32 MDBC I O 33 VDD5V 34 MDBD I O 35 MDBE I O 36 MDBF I O PIN No PIN NAME I O 37 VDD 38 VSS 39 XHRS I 40 HDB7 I O 41 HDB8 I O 42 VDDS 43 HDB6 I O 44 HDB9 I O 45 HDB5 I O 46 VSS 47 HDBA I O 48 HDB4 I O 49 HDBB I O 50 HDB3 I O 51 VDDS 52 VDD 53 HDBC I O 54 HDB2 I O 55 VSS 56 HDBD I O 57 HDB1 I O 58 HDBE I O 59 HDB0 I O 60 HDBF I O 61 HDRQ O 62 VDDS 63 VS...

Page 29: ...R2 O 102 VSS 103 VDDS 104 XTAL I 105 VSS 106 MONTOR1 O 107 LINK O 108 PLCK O 109 VDD5V PIN No PIN NAME I O 110 VDD 111 RFTTLIN I 112 DASYO O 113 GNDA 114 ASF1 O 115 ASF2 O 116 DASY1 I 117 AMPOUT O 118 RFDCC I 119 FRIN I 120 RCTST2 I 121 RCTST1 I 122 RCTST0 I 123 VCCA 124 VCCA 125 VCOR2 I 126 VCOR1 I 127 VCOIN I 128 GNDA 129 GNDA 130 LPFDC I 131 LPF5 O 132 LPF4 I 133 VC1 I 134 LPF3 O 135 LPF2 O 136...

Page 30: ...VSS 168 XTL1 I 169 XRST I 170 VDDS 171 D0 I O 172 D1 I O 173 D2 I O 174 D3 I O 175 D4 I O 176 D5 I O 177 D6 I O 178 D7 I O 179 VSS 180 A0 I 181 A1 I 182 A2 I 183 A3 I PIN No PIN NAME I O 184 A4 I 185 VDD 186 A5 I 187 A6 I 188 A7 I 189 A8 I 190 VSS 191 A9 I 192 A10 I 193 A11 I 194 A12 I 195 A13 I 196 A14 I 197 VDD5V 198 XWAT O 199 XRD I 200 XWR I 201 XCS I 202 VSS 203 VDD 204 XINT0 O 205 XINT1 O 20...

Page 31: ...64 3 8V 172 3 8V 183 3 8V 193 3 8V 201 3 8V D008 BT865 Pin No Voltage 1 1 34V 2 2 9V 3 1 34V 4 4 8V 5 3 5V 6 15mV Pin No Voltage 7 15mV 8 9 78mV 10 11 20mV 12 13 0 15V 14 15mV 15 2 4V 16 16mV 17 16mV 18 16mV 19 16mV 20 16mV 21 16mV 22 16mV 23 4 8V 24 16mV 25 16mV 26 16mV 27 19mV 28 1 2V 29 1 3V 30 1 3V 31 1 3V 32 1 7V 33 1 1V 34 1 5V 35 1 3V 36 20mV 37 4 8V 38 20mV 39 20mV 40 4 8V 41 4 8V 42 24mV ...

Page 32: ...101 106 108 111 112 114 122 125 127 130 136 139 141 144 147 149 152 154 155 171 178 180 184 186 189 191 196 198 201 204 208 3 3V 9 24 37 39 45 47 54 56 62 64 70 72 79 81 89 91 96 103 104 109 110 123 124 137 138 148 156 158 165 169 170 185 197 203 5V D104 4053 Pin No Voltage 1 7 16V 2 3 3 3V 4 3 3V 5 290mV 6 6 1V 7 5 5V 8 6 8V 9 3 3V 10 3 3V 11 4 8V 12 3 3V 13 1 4V 14 1 4V 15 10mV 16 4 8V D109 6208...

Page 33: ... 4 1V 21 173mV 22 3 2V 23 2 4V 24 4 8V 25 0 5V 26 2 4V 27 2 4V 28 4 8V 29 60mV 30 2 4V 31 2 4V 32 4 8V 33 2 4V 34 2 4V 35 2 4V 36 3 1V Pin No Voltage 37 3 4V 38 2 5V 39 0 3V 40 2 4V 41 2 3V 42 2 4V 43 2 4V 44 2 4V 45 3 4V 46 4 8V 47 0 46V 48 5 9mV 49 3 4V 50 3 6V 51 2 V 52 2 1V 53 3 3V 54 3 3V 55 0 6V 56 1 4V 57 2 1V 58 4 8V 59 3 3V 60 3 3V 61 3 5V 62 3 5V 63 64 0 9V 28 ...

Page 34: ... 11 7 6V 12 3 8V 13 3 8V 14 3 8V 15 3 8V 16 3 5V 17 3 5V 18 3 6V 19 3 4V 20 7 6V 21 2 98V 22 18mV 23 18mV 24 2 5V 25 1 2V 26 1 2V 27 2 5V 28 2 2V 29 2 2V 30 7 6V D114 2901 Pin No Voltage 1 103mV 2 9 2mV 3 4 8V 4 0 5V 5 0 8V 6 2 7V 7 2 4V 8 2 8V 9 2 4V 10 2 5V 11 2 1V 12 4 8V 13 99mV 14 100mV 29 ...

Page 35: ...7 CIRCUIT DIAGRAM 30 ...

Page 36: ...sed on infrared remote control applications It is pin to pin compatible with NEC uPD6122 respectively PT2222 is pac kaged in 24 pins SO and capable of controlling 64 function keys and 3 double keys CMOS Technology Using SEL pin PT2222 can support Low PowerConsumption 128 6 functioncodes V 2 0 5 5V Customer Code can be selected uPD6122 pleasecontact PTCfordetails Audio Equipment Cassette Decks Tele...

Page 37: ...OSCO OSCI CCS LMP I I O I O I I I O Power Supply Key Input Pin Nos 0 3 Key Input Pin Nos 4 7 Data Output Pin Power Supply Select Pin Oscillator Pin Oscillator Pin Output LED Indicator 12 23 24 1 2 3 6 7 8 9 10 11 22 13 21 14 PT2222 Application Circuit Custom Code Scan Input Pin Key Input OutputPinNos 0 7 KI O KI O 0 7 32 ...

Page 38: ...ORDER INFORMATION Valid Part Number Package PT2221 001 PT2221 002 PT2222 001 PT2222 002 20 Pins SO 20 Pins SO 24 Pins SO 24Pins SO PT 2222 00X PTCPrefix Product Number VersionNumber 001 002 33 ...

Page 39: ...8 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW 34 ...

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Page 45: ... S3768 REAR PANEL 1 22 a2750 SCREW ST3 8 6 21 S2108 OUTPUT BOART 1 20 a2722 SCREW M3 6 10 19 DECODING BOARD 1 18 b5065 DHASSISA 1 17 b3042 FOOT SPACER B 2 16 b3041 FOOT B 2 15 a2794 SCREW M3 18 2 14 a2773 SCREW ST3 8FT 6 13 OPERATE BOARD 1 12 b3387 FOOTA 2 11 b1633 FOOT SPACER A 2 10 b1632 FOOT SPACER 2 9 a2765 SCREW ST3 10 2 8 b5482j FUNCTION BUTTON 1 7 a2768 SCREW ST3 8F 2 6 b5479j FRONT PANEL 1...

Page 46: ...5 G0776 RT13 0 167W 560 5 1 CAPACITOR C301 a3645 CD295 450V 68u 20 1 C302 a2063 CT81 1KV 2B4 470K 1 C305 a3313 CT7 AC400V 2F 222M YA 1 C307 a3512 CD11 16V 47u 80 1 C309 a3588 CD11 50V 1u 20 1 REF PART CODE PART NAME Q TY C310 a3559 CD11 10V 220u 80 1 C311 C314 a3607 CD11 50V 22u 80 4 C312 a3543 CD11 50V 100u 80 1 C313 a3519 CD11 25V 100u 80 1 C315 a3513 CD11 16V 100u 80 1 C316 C318 a3561 CD11 10V ...

Page 47: ...50V 330p 5 5 C209 C220 C224 C225 a3513 CD11 16V 100u 80 4 C214 C216 C217 C221 a3509 CD11 16V 10u 20 4 C218 C222 a3009 CL11 63V 3n 10 2 C223 C238 a3336 CT4 63V 0 1u 20 2 C226 C227 a2033 CC1 63V 270p 5 2 C229 C234 C237 a3561 CD11 10V 470u 80 7 C236 a2014 CC1 63V 18p 10 1 INDUCTOR L201 L206 A6452 3 3 uH 6 L207 A6552 1 8 uH 1 IC D201 A4516 74HCU04A 1 N201 N202 A4042 AN4558 2 N203 A4571 CW7805 1 U201 a...

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