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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(http://svc.dwe.co.kr)

DAEWOO ELECTRONICS Corp.

Service Manual

 June. 2004

COLOR TELEVISION
CHASSIS : CP-520

MODEL : DTY-28A8/28A6/28A7

DTY-2880/28W5
DTY-21U7/21B4

DTY-25G6/25G7

CHASSIS : CP-520A

MODEL : DTC-20T2

DTC-21Y1/21Y2

CHASSIS : CP-520F

MODEL : DTZ-29U7/U3

DTZ-2881/28W8
DTZ-2481

P/N:TCP520BEF0

Содержание CP-520

Страница 1: ...information please refer to PPL Parts Price List in Service Information Center http svc dwe co kr DAEWOO ELECTRONICS Corp Service Manual June 2004 COLOR TELEVISION CHASSIS CP 520 MODEL DTY 28A8 28A6...

Страница 2: ...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 FEATUR...

Страница 3: ...PROCESSOR 42 5 3 1 Supported standards 43 5 4 FUNCTIONAL DESCRIPTION SOUND PROCESSOR 44 5 4 1 The UOC III TV Sound Concept 44 5 4 2 Functional Overview Of the digital controller sound part 45 5 4 3 D...

Страница 4: ...CP 520 520A 520F Service Manual DTV R D Europe 3 DOCUMENT HISTORY VERSION DATE COMMENTS V1 00 12 05 04 Creation of document Author JS KIM for project CP520 50Hz TV...

Страница 5: ...yperband Tuning system frequency synthesiser tuning system Visual screen size 20 48cm 21 51cm 28 66cm Channel indication On Screen Display Program Selection 100 programmes Aux terminal EURO SCART 1 Au...

Страница 6: ...dance 75 20 Video Input 1 Vpp 3dB Impedance 75 21 Common 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...

Страница 7: ...19 201 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 5...

Страница 8: ...25 C64 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...

Страница 9: ...25 343 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...

Страница 10: ...ry when working on high voltage equipment 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...

Страница 11: ...ote keys Dec Increment the values within range Cycle trough option bits OK key Toggle bits in option byte Order Item Default setting 1 HOR CEN 2 RED GAIN 3 GRN GAIN 4 BLUE GAIN 5 RED BIAS 6 GRN BIAS 7...

Страница 12: ...indow Enabled 0 Fixed to 0 Daewoo Remote control AVL control ON PICTURE TILT OFF 7 keys lacal keyboard Basic ATSS Double Window Disabled n u Must be set to 1 for future compa tibility OPTION SETTING B...

Страница 13: ...adjust 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...

Страница 14: ...nt 0x64E 0x20 17 Nor1_JVC_Bri 0x64F 0x2D 0x22 18 Nor1_JVC_Cont 0x650 0x2A 0x2E 19 Nor1_JVC_Colour 0x651 0x1B 0x20 20 Nor1_JVC_Sharp 0x652 0x23 21 Nor2_Bright 0x653 0x28 0x23 0x22 22 Nor2_Contrast 0x65...

Страница 15: ...nd adjust 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 C...

Страница 16: ...for 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...

Страница 17: ...e text 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 cou...

Страница 18: ...CP 520 520A 520F Service Manual DTV R D Europe 17 4 1 2 BLOCK DIAGRAM...

Страница 19: ...1 7 or I2C bus 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...

Страница 20: ...tput 63 FBISO 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 rig...

Страница 21: ...ection 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 outp...

Страница 22: ...m and 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...

Страница 23: ...inally 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 Digi...

Страница 24: ...loudspeaker 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...

Страница 25: ...atures 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 char...

Страница 26: ...ripple 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 c...

Страница 27: ...CP 520 520A 520F Service Manual DTV R D Europe 26 Block diagram TDA8946J...

Страница 28: ...combination 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...

Страница 29: ...Supply 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 Ve...

Страница 30: ...l of 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 stabilisat...

Страница 31: ...sed 5 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 seria...

Страница 32: ...MOSFET and control IC designed for flyback converter type switch mode power supply applications 4 6 2 FEATURES Small SIP fully isolated moulded 5 pins package Many protection functions v Pulse by pul...

Страница 33: ...tion stop voltage 4 5 VIN off 9 10 111 V Circuit current in operation 4 5 IIN on 30 mA Circ current in non operation 4 5 IIN off 100 A Maximum off time TOFF max 45 55 SEC Minimum time for input of qua...

Страница 34: ...CTRICAL CHARACTERISTICS IC PIN RATING DESCRIPTION NUMBER SYMBOL MIN TYPE MAX UNIT Drain to source break down voltage 3 2 VDSS 650 V Drain leakage current 3 2 IDSS 300 A On resistance 3 2 RDS on 1 95 S...

Страница 35: ...CP 520 520A 520F Service Manual DTV R D Europe 34 5 CIRCUIT DESCRIPTION 5 1 BLOCK DIAGRAM...

Страница 36: ...eQSSmixerisrealisedbyamultiplier 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...

Страница 37: ...The 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 volumecontrolledaudiooutputsisrealisedbyth...

Страница 38: ...urate 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 capac...

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

Страница 40: ...ture n Dynamic skin tone flesh control This function is realised in the YUV domain by detecting the colours near to the skin tone n Scan Velocity modulation output Also the SVM function can be activat...

Страница 41: ...YUV 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 activate...

Страница 42: ...it This 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 a...

Страница 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 process...

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

Страница 45: ...52 J17 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 U...

Страница 46: ...or decoder 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 A...

Страница 47: ...r 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...

Страница 48: ...xing 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 dete...

Страница 49: ...ol bits 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 NICAMtowhateversoundisonthefirst...

Страница 50: ...0PF K 125C C905 CEXF2E479V C ELECTRO 250V RSS 4 7MF 10X16 TP C965 CBXB3D102K C CERA SEMI 2KV BL N 1000PF K T C997 CEXF2E100V C ELECTRO 250V RSS 10MF 10X20 TP D403 DBY228 DIODE BY228 D404 DBYW76 DIODE...

Страница 51: ...C ELECTRO 16V RSS 47MF 5X11 TP C509 CMXL1J224J C MYLAR 63V MEU 0 22MF J TP C510 CEXF1E101V C ELECTRO 25V RSS 100MF 6 3X11 TP C511 CCXB1H102K C CERA 50V B 1000PF K TAPPING C513 CMXL1J224J C MYLAR 63V...

Страница 52: ...0V B 100PF K AXIAL C572 CCZB1H101K C CERA 50V B 100PF K AXIAL C573 CCZB1H101K C CERA 50V B 100PF K AXIAL C575 CCZB1H102K C CERA 50V B 1000PF K AXIAL C578 CBZF1H104Z C CERA SEMI 50V F 0 1MF Z AXIAL C58...

Страница 53: ...01J R CARBON FILM 1 6 100 OHM J J84 RD AZ101J R CARBON FILM 1 6 100 OHM J J86 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J87 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J88 85801065GY WIRE CO...

Страница 54: ...CARBON FILM 1 6 680 OHM J R720 RD AZ122J R CARBON FILM 1 6 1 2K OHM J R721 RD AZ181J R CARBON FILM 1 6 180 OHM J R722 RD AZ221J R CARBON FILM 1 6 220 OHM J R723 RD AZ331J R CARBON FILM 1 6 330 OHM J...

Страница 55: ...G904 4SG0DY0001 SPARK GAP SSG 102 A1 1 0KV BULK I301 1TDA8358J IC VERTICAL TDA8358J I301A 4857024421 HEAT SINK I602A CP 385 I301B 7174301011 SCREW TAPPTITE TT2 RND 3X10 MFZN I502 1AT24C16PC IC MEMORY...

Страница 56: ...539 CMXM2A332J C MYLAR 100V 3300PF J TP C540 CMXM2A473J C MYLAR 100V 0 047MF J TP C542 CEXF1H100V C ELECTRO 50V RSS 10MF 5X11 TP C543 CEXF1H229V C ELECTRO 50V RSS 2 2MF 5X11 TP C545 CEXF1H229V C ELECT...

Страница 57: ...E ZENER TZX3V9B TAPPING D601 D1N4148 DIODE 1N4148 TAPPING D602 D1N4148 DIODE 1N4148 TAPPING D710 DTZX5V6B DIODE ZENER TZX5V6B TAPPING D801 DLT2A05G DIODE LT2A05G D802 DLT2A05G DIODE LT2A05G D803 DLT2A...

Страница 58: ...2TB L512 5CPZ479K02 COIL PEAKING 4 7UH 3 5MM K LAL02TB L513 5CPZ479K02 COIL PEAKING 4 7UH 3 5MM K LAL02TB L515 5CPZ100K02 COIL PEAKING 10UH 3 5MM K LAL02TB L516 5CPZ479K02 COIL PEAKING 4 7UH 3 5MM K L...

Страница 59: ...CARBON FILM 1 4 47K OHM J R813 RD 4Z473J R CARBON FILM 1 4 47K OHM J R814 RD AZ472J R CARBON FILM 1 6 4 7K OHM J R815 RD AZ472J R CARBON FILM 1 6 4 7K OHM J R816 RD 4Z399J R CARBON FILM 1 4 3 9 OHM J...

Страница 60: ...VERTICAL TDA8358J I301A 4857024421 HEAT SINK I602A CP 385 I301B 7174301011 SCREW TAPPTITE TT2 RND 3X10 MFZN I502 1AT24C16PC IC MEMORY AT24C16 10PC I602 1TDA8946J IC AUDIO TDA8946J I602A 4857024421 HE...

Страница 61: ...0V RSS 10MF 5X11 TP C548 CEXF1H100V C ELECTRO 50V RSS 10MF 5X11 TP C549 CMXL1J474J C MYLAR 63V 0 47MF MKT C552 CMXL1J474J C MYLAR 63V 0 47MF MKT C553 CMXL1J474J C MYLAR 63V 0 47MF MKT C554 CMXL1J474J...

Страница 62: ...D823 DTZX5V6B DIODE ZENER TZX5V6B TAPPING D824 D1N4148 DIODE 1N4148 TAPPING D825 D1N4148 DIODE 1N4148 TAPPING D830 D1N4937G DIODE 1N4937G D831 D1N4937G DIODE 1N4937G D840 D1N4004S DIODE 1N4004S D841 D...

Страница 63: ...ON FILM 1 6 47K OHM J R115 RD AZ101J R CARBON FILM 1 6 100 OHM J R120 RD AZ101J R CARBON FILM 1 6 100 OHM J R131 RD AZ472J R CARBON FILM 1 6 4 7K OHM J R310 RD AZ471J R CARBON FILM 1 6 470 OHM J R311...

Страница 64: ...1 6 1K OHM J R821 RD 4Z102J R CARBON FILM 1 4 1K OHM J R823 RD 4Z392J R CARBON FILM 1 4 3 9K OHM J R829 RD AZ103J R CARBON FILM 1 6 10K OHM J R830 RD AZ332J R CARBON FILM 1 6 3 3K OHM J R840 85801065...

Страница 65: ...0V MF51 G900 4SG0DY0001 SPARK GAP SSG 102 A1 1 0KV BULK G901 4SG0DY0001 SPARK GAP SSG 102 A1 1 0KV BULK G902 4SG0DY0001 SPARK GAP SSG 102 A1 1 0KV BULK G903 4SG0DY0001 SPARK GAP SSG 102 A1 1 0KV BULK...

Страница 66: ...G C522 CBXF1H104Z C CERA SEMI 50V F 0 1MF Z TAPPING C524 CMXM2A682J C MYLAR 100V 6800PF J TP C525 CEXF1H109V C ELECTRO 50V RSS 1MF 5X11 TP C526 CMXL1J224J C MYLAR 63V MEU 0 22MF J TP C527 CEXF1H100V C...

Страница 67: ...B 100PF K AXIAL CA05 CCZB1H101K C CERA 50V B 100PF K AXIAL CA06 CCZB1H101K C CERA 50V B 100PF K AXIAL CA28 CCZB1H102K C CERA 50V B 1000PF K AXIAL D101 DBAT85 DIODE BAT85 TAPPING D102 DBA282 DIODE BA28...

Страница 68: ...0 65 TIN COATING J93 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J94 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J95 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J96 85801065GY WIRE COPPER...

Страница 69: ...1 2K OHM J R721 RD AZ181J R CARBON FILM 1 6 180 OHM J R722 RD AZ221J R CARBON FILM 1 6 220 OHM J R723 RD AZ331J R CARBON FILM 1 6 330 OHM J R724 RD AZ471J R CARBON FILM 1 6 470 OHM J R805 RD 2Z100J R...

Страница 70: ...CP 520 520A 520F Service Manual DTV R D Europe 7 Exploded View 7 1 DTY 28A8 69...

Страница 71: ...CP 520 520A 520F Service Manual DTV R D Europe 7 Exploded View 7 2 DTY 2880 70...

Страница 72: ...CP 520 520A 520F Service Manual DTV R D Europe 7 Exploded View 7 3 DTY 21U7 71...

Страница 73: ...CP 520 520A 520F Service Manual DTV R D Europe 7 Exploded View 72 7 4 DTY 25G6...

Страница 74: ...CP 520 520A 520F Service Manual DTV R D Europe 7 Exploded View 7 5 DTC 20T2 73...

Страница 75: ...CP 520 520A 520F Service Manual DTV R D Europe 7 Exploded View 7 6 DTC 21Y1 74...

Страница 76: ...CP 520 520A 520F Service Manual DTV R D Europe 7 Exploded View 7 7 DTZ 29U7 75...

Страница 77: ...CP 520 520A 520F Service Manual DTV R D Europe 7 Exploded View 7 8 DTZ 2881 76...

Страница 78: ...CP 520 520A 520F Service Manual DTV R D Europe 7 Exploded View 7 9 DTZ 2481 77...

Страница 79: ...CP 520 520A 520F Service Manual DTV R D Europe 8 Printed Circuit Board 8 1 4859809693 CP 520 78...

Страница 80: ...CP 520 520A 520F Service Manual DTV R D Europe 8 Printed Circuit Board 8 2 4859809893 CP 520A 79...

Страница 81: ...CP 520 520A 520F Service Manual DTV R D Europe 8 Printed Circuit Board 8 3 4859809993 CP 520F 80...

Страница 82: ...CP 520 520A 520F Service Manual DTV R D Europe 9 Schematic Diagram 9 1 CP 520 81...

Страница 83: ...CP 520 520A 520F Service Manual DTV R D Europe 9 Schematic Diagram 9 2 CP 520A 82...

Страница 84: ...CP 520 520A 520F Service Manual DTV R D Europe 9 Schematic Diagram 9 3 CP 520F 83...

Страница 85: ......

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