Daewoo DTL-2950K Service Manual Download

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Caution

: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center.

Service Manual

COLOR Television

CHASSIS :

Model :

CP-650

DTL-2950
DTL-2950K
DTL-2950GB

P/N : TCP650FEF0

APR.2006

Summary of Contents for DTL-2950K

Page 1: ...ir performance without notice in the parts list So if you need the latest parts information please refer to PPL Parts Price List in Service Information Center Service Manual COLOR Television CHASSIS M...

Page 2: ...5 HORIZONTAL PICTURE CENTRING 14 3 7 6 EAST WEST CORRECTION 14 3 7 7 AGC 15 4 IC DESCRIPTION 16 4 1 UOC III SERIES 16 4 1 1 IC MARKING AND VERSION 16 4 2 TDA8946J STEREO AUDIO AMPLIFIER 24 4 2 1 FEAT...

Page 3: ...10 RGB output circuit 40 5 2 11 I2C BUS USER INTERFACE DESCRIPTION 42 5 3 GENERAL DESCRIPTION OF THE TV SOUND OF SOUND PROCESSOR 42 5 3 1 Supported standards 43 5 4 FUNCTIONAL DESCRIPTION SOUND PROCE...

Page 4: ...CP 650 Service Manual DTV R D Europe 3 DOCUMENT HISTORY VERSION DATE COMMENTS V1 00 28 03 06 Creation of document Author JS KIM for project CP650 50Hz SLIM TV...

Page 5: ...ation On Screen Display Program Selection 100 programmes Aux terminal EURO SCART 1 Audio Video In and Out R G B In Slow and Fast switching EURO SCART 2 Audio Video In and Out SVHS In AV3 Audio Video J...

Page 6: ...n Earth 1 1 3 EURO SCART 2 21 Pin Pin Signal Description Matching value 1 Audio Output Right 0 5 Vrms Impedance 1 k RF 54 Mod 2 Audio Input Right 0 5 Vrms Impedance 10 k 3 Audio Output Left 0 5 Vrms I...

Page 7: ...1 25 C20 C21 471 25 471 25 471 25 471 25 C22 479 25 479 25 479 25 479 25 C23 487 25 487 25 487 25 487 25 C24 495 25 495 25 495 25 495 25 C25 503 25 503 25 503 25 503 25 C26 511 25 511 25 511 25 511 25...

Page 8: ...64 815 25 815 25 815 25 815 25 C65 823 25 823 25 823 25 823 25 C66 831 25 831 25 831 25 831 25 C67 839 25 839 25 839 25 839 25 C68 847 25 847 25 847 25 847 25 C69 855 25 855 25 855 25 855 25 C70 863 2...

Page 9: ...43 25 343 25 S27 351 25 351 25 351 25 351 25 S28 359 25 359 25 359 25 359 25 S29 367 25 367 25 367 25 367 25 S30 375 25 375 25 375 25 375 25 S31 383 25 383 25 383 25 383 25 S32 391 25 391 25 391 25 39...

Page 10: ...ipment Discharge the high potential of the picture tube before handling the tube The picture tube is highly evacuated and if broken glass fragments will be violently expelled If any Fuse in this TV re...

Page 11: ...E MODE NAVIGATION Pr Up Down remote keys cycle through the service items available Vol remote keys Dec Increment the values within range Cycle trough option bits OK key Toggle bits in option byte Orde...

Page 12: ...N 1 B7 B6 B5 B4 B3 B2 B1 B0 1 TOP Teletext OFF FASTEXT FLOF OFF TUBE 4 3 VAI bit set to 1 in SECAM L Dolby Virtual OFF SVHS3 disable 0 TOP Teletext ON FASTEXT FLOF ON TUBE 16 9 VAI bit set to 0 in SEC...

Page 13: ...t the TV set 3 Entering into NVM EDITOR mode To switch the TV set into NVM EDITOR mode use the user remote control and press on PICTURE OK key The NVM EDITOR window will appear on the screen This mode...

Page 14: ...8 Nor2_Contrast 0x654 0x13 19 Nor2_Colour 0x655 0x19 20 Nor2_Sharpness 0x656 0x1B 21 Nor2_Tint 0x657 0x1F 22 BOW 0x665 0x19 23 V LINEAR 0x667 0x28 24 Peaking White Level 0x671 0x01 25 Soft Clipping Le...

Page 15: ...just RED GRN and BLUE GAIN to the desired colour temperature 3 7 3 FOCUS Adjust the Focus volume on FBT to have the best resolution on screen 3 7 4 VERTICAL GEOMETRY Adjust V LINEAR linearity S CORREC...

Page 16: ...the tuner fitted on the chassis See above how to change option bits Adjust the antenna signal level at 62 dB V Tune a colour bar pattern Find the AGC item in service mode Press the key OK on the remot...

Page 17: ...memory Multi standard stereo decoder BTSC stereo decoder Digital sound processing circuit Digital video processing circuit 4 1 1 IC MARKING AND VERSION Chassis IC marking OSD languages ATSS countries...

Page 18: ...CP 650 Service Manual DTV R D Europe 17 4 1 2 BLOCK DIAGRAM...

Page 19: ...s data line 21 P1 6 SCL port 1 6 or I2C bus clock line 22 P1 3 T1 port 1 3 or Counter Timer 1 input 23 P0 0 I2SDI1 O port 0 0 or I2S digital input 1 or I2S digital output 24 P0 1 I2SDO1 port 0 1 or I2...

Page 20: ...CSY flyback input sandcastle output or composite H V timing output 64 SVM scan velocity modulation output 65 CVBSO PIP CVBS PIP output 66 AUDOUTHPR audio output for headphone channel right signal 67 A...

Page 21: ...n for IF amplifier 102 IREF reference current input 103 VSC vertical sawtooth capacitor 104 VIFIN2 IF input 2 105 VIFIN1 IF input 1 106 VDRA vertical drive A output 107 VDRB vertical drive B output 10...

Page 22: ...various forced mode possibilities Internal base band delay line Indication of the Signal to Noise ratio of the incoming CVBS signal Linear RGB YPBPR input with fast insertion YUV interface When this...

Page 23: ...y 1 stereo SPEAKER output with digital controls AVL Automatic Volume Levelling circuit for the headphone channel Digital input crossbar switch for all digital signal sources and destinations Digital o...

Page 24: ...speaker channels stereo versions with Audio DSP Extended Pseudo Stereo EPS 5 Extended Spatial Stereo ESS 6 Virtual Dolby Surround VDS 422 423 1 SRS 3D and SRS TruSurround 4 RDS RBDS Demodulation of th...

Page 25: ...s of level 1 5 WST and US Close Caption 50Hz 60Hz display timing modes Two page operation for 16 9 screens Serial and Parallel Display Attributes Single Double Quadruple Width and Height for character...

Page 26: ...le rejection Outputs short circuit protected to ground supply and across the load Thermally protected Pin description Pin Symbol Description 1 OUT1 negative loudspeaker terminal 1 2 GND1 ground channe...

Page 27: ...CP 650 Service Manual DTV R D Europe 26 Block diagram TDA8946J...

Page 28: ...ination with single positive supply voltages The east west output stage is able to supply the sink current for a diode modulator circuit The IC is constructed in a Low Voltage DMOS LVDMOS process that...

Page 29: ...ly voltage 4 OUTB Vertical output voltage B 5 INEW East west input voltage 6 VGND Vertical ground 7 EWGND East west ground 8 OUTEW East west output voltage 9 VFB Flyback supply voltage 10 OUTA Vertica...

Page 30: ...60 Vpp High slew rate of 900V s No external components required Very simple application Single supply voltage of 200V Internal reference voltage of 2 5 V Fixed gain of 81 Black current stabilisation B...

Page 31: ...SDA Serial Data Address Input Output 6 SCL Serial clock 7 WP Write control 8 Vcc Supply voltage 4 Vss Ground The memory device is compatible with the I2C memory standard This is a two wire serial int...

Page 32: ...light to medium load Soft Start Operation is provided at the SMPS start up Switching noise is reduced by Step Drive Function Avalanche energy of the MOSFET is guaranteed Overcurrent Protection OCP Ov...

Page 33: ...nternal Frame Pin No Symbols Terminal Descriptions Functions 1 D Drain Terminal MOSFET Drain 2 3 S GND Source Grand Terminal MOSFET Source and Ground 4 VCC Power Supply Terminal Control Circuit Power...

Page 34: ...7 3 VOCPBD TH1 0 4 V Quasi Resonant Operation Threshold Voltage 2 7 3 VOCPBD TH2 0 8 V Minimum Quasi Resonant Signal Input Time 7 3 TOFF MIN 1 sec FB Terminal Threshold Voltage 6 3 VFB OFF 1 5 V FB Te...

Page 35: ...CP 650 Service Manual DTV R D Europe 34 5 CIRCUIT DESCRIPTION 5 1 BLOCK DIAGRAM...

Page 36: ...ixerisrealisedbyamultiplier In this multiplier the SIF signal is converted to the intercarrier frequency by mixing it with the regenerated picture carrier from the VCO The mixer output signal is suppl...

Page 37: ...selection is made with the bits SAS2 0 SO2 0 and HPO2 0 AV stereo versions without Audio DSP have no headphone output The input signal selection for the volumecontrolledaudiooutputsisrealisedbytheHPO2...

Page 38: ...timing of the displayed picture the input signal of the sync separator is not derived from the various CVBS Y or RGB YPrPb inputs but from the YOUT pin For this reason the YOUT pin must be capacitive...

Page 39: ...S correction Vertical shift Vertical zoom Vertical scroll Vertical linearity correction When required the linearity setting for the upper and lower part of the screen can have a different setting Hori...

Page 40: ...amic skin tone flesh control This function is realised in the YUV domain by detecting the colours near to the skin tone Scan Velocity modulation output Also the SVM function can be activated for all i...

Page 41: ...V interface to th edigita ldie Via this loop digital features like double window are added A tint control is available for the base band U V signals For this reason this tint control can be activated...

Page 42: ...is indication can be read from the status byte 01 and can be used for automatic adjustment of the Vg2 voltage during the production of the TV receiver During this test the vertical scan remains active...

Page 43: ...available via auto increment mode no address can be used and all registers must be read 5 3 GENERAL DESCRIPTION OF THE TV SOUND OF SOUND PROCESSOR The TV Sound Processor is a digital TV sound processo...

Page 44: ...tem For BTSC full dbx performance SAP demodulation without dbx simultaneously with stereo decoding or mono plus SAP with dbx Line pilot frequency selectable from 15 734 kHz and 15 625 kHz or automatic...

Page 45: ...7 100 Note1 D K 6 5 FM 27 50 80 5 85 J17 40 Note1 L 6 5 AM 54 100 5 85 J17 40 Note1 Note 1 See EBU specification or equivalent specification 5 4 FUNCTIONAL DESCRIPTION SOUND PROCESSOR 5 4 1 The UOC II...

Page 46: ...coder DEMDEC a digital input crossbar the digital audio processing for the loudspeaker and DAC channels the I2S processing and interfacing a digital output crossbar as well as the DA conversion An aux...

Page 47: ...is able to search for sound carriers and react to transmission mode changes autonomously without interaction of the micro controller software It is possible for a typical terrestrial TV application to...

Page 48: ...of the A2 stereo dual and mono signals to obtain the left L and right R or language A and B signals FMPILOTCARRIERPRESENTDETECTOR The TV Sound Processor provides FM A2 standard pilot carrier detection...

Page 49: ...ts NICLOERRLIM and NICUPERRLIM When the number of errors in a 128 ms period exceeds the upper error limit the auto mute function will switch the output sound from NICAMtowhateversoundisonthefirstsound...

Page 50: ...O LOMAX NEW 22 SP01A 4856017800 SCREW SPKR FIX SWRM SECC 3CR 23 SP02A 4856017800 SCREW SPKR FIX SWRM SECC 3CR 24 V901 4859650560 CRT PHILIPS 29 A68ERS870X05 P38 25 ZZ131 58G0000182 COIL DEGAUSSING DC...

Page 51: ...R1 6 SMALL 58 E2 4856310300 EYE LET BSR T0 2 R1 6 SMALL 59 E3 4856310300 EYE LET BSR T0 2 R1 6 SMALL 60 E4 4856310300 EYE LET BSR T0 2 R1 6 SMALL 61 E5 4856310300 EYE LET BSR T0 2 R1 6 SMALL 62 E6 485...

Page 52: ...2 RD 2Z824J R CARBON FILM 1 2 820K OHM J 105 RA21 RD AZ750J R CARBON FILM 1 6 75 OHM J 106 RA22 RD AZ750J R CARBON FILM 1 6 75 OHM J 107 ZZ290 PTMPMSL2950FF PCB MAIN MANUAL AS DTL 2950FZF S 108 10 219...

Page 53: ...T SINK AL EX B K 150 I801B 7174300851 SCREW TAPPTITE TT2 RND 3X8 MFZN 3CR 151 I804 1LTV817C IC PHOTO COUPLER LTV 817C 152 I806 1DP142 IC ERROR AMP DP142 153 I820 1S7805P1C IC REGULATOR S7805PIC 5 0V 1...

Page 54: ...JS R M OXIDE FILM 2W 0 22 OHM J SMALL 195 R819 RX07B339JP R CEMENT 7W 3 3 OHM J BEN 15MM 4P 196 R841 RS02Y399JS R M OXIDE FILM 2W 3 9 OHM J SMALL 197 R842 RS02Y240JS R M OXIDE FILM 2W 24 OHM J SMALL 1...

Page 55: ...T0 2 R1 6 SMALL 240 E49 4856310300 EYE LET BSR T0 2 R1 6 SMALL 241 E50 4856310300 EYE LET BSR T0 2 R1 6 SMALL 242 E51 4856310300 EYE LET BSR T0 2 R1 6 SMALL 243 E52 4856310300 EYE LET BSR T0 2 R1 6 SM...

Page 56: ...F 5X11 TP 284 C521 CMXM2A222J C MYLAR 100V 2200PF J TP 285 C522 CBXF1H104Z C CERA SEMI 50V F 0 1MF Z TAPPING 286 C524 CMXM2A682J C MYLAR 100V 6800PF J TP 287 C525 CEXF1H479V C ELECTRO 50V RSS 4 7MF 5...

Page 57: ...C MYLAR 100V 0 22MF J 329 C665 CCXB1H222K C CERA 50V B 2200PF K TAPPING 330 C667 CCXB1H222K C CERA 50V B 2200PF K TAPPING 331 C668 CMXM2A393J C MYLAR 100V 0 039MF J TP 332 C669 CMXM2A393J C MYLAR 100V...

Page 58: ...3 Q509 T2SC5343Y TR 2SC5343Y 374 Q513 T2SA1980Y TR 2SA1980Y 375 Q515 TH2N7000 TR H2N7000 376 Q601 T2SC5343Y TR 2SC5343Y 377 Q602 T2SA1980Y TR 2SA1980Y 378 Q809 T2SC5343Y TR 2SC5343Y 379 Q810 T2SC5343Y...

Page 59: ...A 50V F 0 01MF Z 419 C532 CCZB1H102K C CERA 50V B 1000PF K AXIAL 420 C533 CCZB1H102K C CERA 50V B 1000PF K AXIAL 421 C541 CBZF1H104Z C CERA SEMI 50V F 0 1MF Z AXIAL 422 C544 CBZF1H104Z C CERA SEMI 50V...

Page 60: ...ER TZX3V9B TAPPING 464 D601 D1N4148 DIODE 1N4148 TAPPING 465 D602 D1N4148 DIODE 1N4148 TAPPING 466 D801 DLT2A05G DIODE LT2A05G 467 D802 DLT2A05G DIODE LT2A05G 468 D803 DLT2A05G DIODE LT2A05G 469 D804...

Page 61: ...WIRE COPPER 1 0 6 TIN COATING 511 J109 85801060GY WIRE COPPER 1 0 6 TIN COATING 512 J11 85801060GY WIRE COPPER 1 0 6 TIN COATING 513 J110 85801060GY WIRE COPPER 1 0 6 TIN COATING 514 J111 85801060GY W...

Page 62: ...COPPER 1 0 6 TIN COATING 556 J36 85801060GY WIRE COPPER 1 0 6 TIN COATING 557 J37 85801060GY WIRE COPPER 1 0 6 TIN COATING 558 J38 85801060GY WIRE COPPER 1 0 6 TIN COATING 559 J39 85801060GY WIRE COP...

Page 63: ...COPPER 1 0 6 TIN COATING 602 J79 85801060GY WIRE COPPER 1 0 6 TIN COATING 603 J8 85801060GY WIRE COPPER 1 0 6 TIN COATING 604 J80 85801060GY WIRE COPPER 1 0 6 TIN COATING 605 J81 85801060GY WIRE COPPE...

Page 64: ...IL BEAD MD 5 HC 3550 647 LA30 5CPZ479K02 COIL PEAKING 4 7UH 3 5MM K LAL02TB 648 R103 RD AZ393J R CARBON FILM 1 6 39K OHM J 649 R104 RD AZ683J R CARBON FILM 1 6 68K OHM J 650 R105 RD AZ103J R CARBON FI...

Page 65: ...3J R CARBON FILM 1 6 15K OHM J 694 R517 RD AZ101J R CARBON FILM 1 6 100 OHM J 695 R518 RD AZ101J R CARBON FILM 1 6 100 OHM J 696 R519 RD AZ102J R CARBON FILM 1 6 1K OHM J 697 R527 RD AZ101J R CARBON F...

Page 66: ...CARBON FILM 1 6 1K OHM J 740 R579 RD AZ101J R CARBON FILM 1 6 100 OHM J 741 R580 RD AZ183J R CARBON FILM 1 6 18K OHM J 742 R581 RD AZ101J R CARBON FILM 1 6 100 OHM J 743 R582 RD AZ101J R CARBON FILM...

Page 67: ...10K OHM J 785 R830 RD AZ101J R CARBON FILM 1 6 100 OHM J 786 R831 RD AZ472J R CARBON FILM 1 6 4 7K OHM J 787 R832 RD AZ473J R CARBON FILM 1 6 47K OHM J 788 R833 RD 2Z105J R CARBON FILM 1 2 1M OHM J 7...

Page 68: ...AZ101J R CARBON FILM 1 6 100 OHM J 828 RA30 RD AZ101J R CARBON FILM 1 6 100 OHM J 829 RA31 RD AZ103J R CARBON FILM 1 6 10K OHM J 830 RA32 RD AZ680J R CARBON FILM 1 6 68 OHM J 831 RA35 RD AZ750J R CARB...

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Page 72: ...2950_ sch 1 Thu Apr 13 19 02 29 2006 F...

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Page 74: ...DAEWOO ELECTRONICS CORP PRINTED DATE APR 2006 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA...

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