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Daewoo DTQ - 20D5FS, Руководство по обслуживанию, Страница: 42 / 48

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11

TROUBLESHOOTING GUIDE

1. NO POWER

12V

#10

#3

#5

#1

I801

D801

PCW1

F801

L801

R801

R416

RLY01

FROM

 FBT 10V

C804

T801

B+

133V

45V

12V

D807

C814

D808

D813

C815

C812

R814

C820

C819

TO I101 #34

OCP

TUNER

33V

R820

DR.TRNS B+

45V

SOUND B+

12V

R817

R818

D812

5.6Vz

Q805

C706

ST-BY

5V

133V

Q801

FET

S

R809

R802

G

R803

D

L802

C805

R804

Check

F801(125V 4A)

Check

D801(PBS208GU)

Check

R801(7W 2.2)

Check

Voltage

Check

Voltage

Check

Voltage

Check

Voltage

133V

#14

FROM U-COM
#42 PW ON/0FF

#11

Check

Voltage

 FROM MICOM #42
 PW ON : H
 PW OFF : L

Check

waveform

<DRAIN OF Q801>

ST-BY

PW ON

APPENDIX

12V

D888

C889

Содержание DTQ - 20D5FS

Страница 1: ...E 75 ohm Unbalanced AUXILIARY INPUT TERMINAL Front Video Audio Earphone Rear Video Audio R L INTERMEDIATE FREQUENCIES Picture IF Carrier Frequency 45 75 MHZ Sound IF Carrier Frequency 41 25 MHZ Color...

Страница 2: ...IC DIAGRAM 12 EXPLODED VIEW 12 PRINTED CIRCUIT BOARD 13 SERVICE PARTS LIST 14 The Different Parts List 21 APPENDIX Appendix is provided only by internet http svc dwe co kr IC DESCRIPTION 1 Trouble Sho...

Страница 3: ...igh potential of the picture tube before handling the tube The picture tube is highly evacuated and if broken glass fragments will be violently expelled 2 If any Fuse in this TV receiver is blown repl...

Страница 4: ...1 W 84 SOUND OUTPUT 5W 5W SPEAKER 8 ohm 5W x 2EA ANTENNA INPUT IMPED ANCE 75 ohm Unbalanced AUXILIARY INPUT TERMI NAL Front Video Audio Earphone Rear Video Audio R L INTERMEDIATE FREQUEN CIES Picture...

Страница 5: ...VHF L 5A A B A 5 A 1 CH 2 CH 6 VHF H C W 11 CH 7 CH 13 UHF W 12 W 84 SOUND OUTPUT 5W 5W SPEAKER 8 ohm 5W x 2EA ANTENNA INPUT IMPEDANCE 75 ohm Unbalanced AUXILIARY INPUT TERMINAL Front Video Audio Earp...

Страница 6: ...430G SCL SDA Screen Fouse H V FBT HEATER POWER IC 2SK2564 EEPROM IR SW1 SW5 SAW FI LTER VIDEO AMP TDA 6103Q 10V 28V SOUND AMP TDA7266 IF DET OUT TRAP BPF 5V 9V 5V X RAY SMPS TRANS TSM 3541A5 DPM001T1...

Страница 7: ...t main picture source 8 MTS Use this button to select one mode of Mono Stereo or SAP 9 PREVIOUS Use this button to return previous channel you were watching 10 PIP Use this button to turn PIP on off 1...

Страница 8: ...olume up or down button to enter in the service mode you wish to adjust 2 How to memorize the adjusted values in the service mode Must press DISPLAY button the state which the screen is displaying eac...

Страница 9: ...I 0 63 Align vertical DC bias using internal cross pattern S7 Vertical Size V SIZE 0 127 Align vertical amplitude using internal cross pattern S7 NO SD POWER OFF YES Automatically turn off in 15min fo...

Страница 10: ...lume up or down button the screen is changing like this Using the volume up or down button select internal cross pattern Select service adjustment S6 You can see the OSD as shown in below 4 1 Horizont...

Страница 11: ...ume down adjust service adjustment data of RD GD BD and RB GB BB until a good gray scale with normal whites is obtained ALIGNMENT INSTRUCTIONS Press the DISPLAY button to memorize the data 6 DIGITAL P...

Страница 12: ...lue to obtain normal brightness level Press the DISPLAY button to memorize the data CONTRAST Fixed value 10 TINT Fixed value 27 COLOR Fixed value 15 7 FACTORY OUTGOING MODE S12 FACT If you select the...

Страница 13: ......

Страница 14: ...1 4 1 9 8 7 5 10 6 14 1 13 12 9 PC BK 1 4856013302 2 1 CR T2 0 4856215402 1 5 TT2 TRS 4X14 MFZN BK 7172401412 4 1 1 1 4945801 5541201 4851915401 HIPS BK 4854945801 1 1 1 1 1 1 2 8 7128301212 1 HIPS BK...

Страница 15: ...4 CR T2 0 4856214902 1 1 1 1 1 1 1 T2S TRS 4X14 MFZN 6 7122401411 8 T2S TRS 3X12 MFZN 7128301211 A1050P H24 T2 0 4855615900 1 SWPA PIE 0 5 4856716000 ABS BK HIPS BK HIPS BK 4854945901 4852156201 4852...

Страница 16: ...14 PRINTED CIRCUIT BOARD...

Страница 17: ...the same component Caution D807 DIODE RGP30J 10000 F801 FUSE GLASS TUBE UL CSA TL 4A 125V MF51 10000 I301 HEAT SINK ASS Y 1LA7841 7174300811 10000 I301 IC VERTICAL LA7841 10000 I301A HEAT SINK AL EX D...

Страница 18: ...IP CERA 50V X7R 0 01MF K 2012 10000 CC752 C CHIP CERA 50V CH 18PF J 2012 10000 CC753 C CHIP CERA 50V CH 18PF J 2012 10000 CC754 C CHIP CERA 50V X7R 0 01MF K 2012 10000 CC755 C CHIP CERA 50V X7R 0 01MF...

Страница 19: ...1 10 4 7K OHM J 2012 10000 LOC PART NAME PART DESCRIPTION QTY REMARK SERVICE PARTS LIST RC751 R CHIP 1 10 470 OHM J 2012 10000 RC752 R CHIP 1 10 470 OHM J 2012 10000 RC755 R CHIP 1 10 4 7K OHM J 2012...

Страница 20: ...P 10000 C201 C ELECTRO 16V RSS 220MF 8X11 5 TP 10000 C202 C ELECTRO 50V RSS 10MF 5X11 TP 10000 C203 C ELECTRO 50V RSS 1MF 5X11 TP 10000 C220 C ELECTRO 50V RSS 2 2MF 5X11 TP 10000 C221 C ELECTRO 50V RS...

Страница 21: ...1W 120K OHM J SMALL 10000 R915 R METAL FILM 1W 120K OHM J SMALL 10000 LOC PART NAME PART DESCRIPTION QTY REMARK SERVICE PARTS LIST SW702 SW TACT SKHV17910A 10000 SW703 SW TACT SKHV17910A 10000 SW704 S...

Страница 22: ...ING 500 J523 WIRE COPPER AWG22 1 0 65 TIN COATING 500 LOC PART NAME PART DESCRIPTION QTY REMARK SERVICE PARTS LIST J524 WIRE COPPER AWG22 1 0 65 TIN COATING 500 J525 WIRE COPPER AWG22 1 0 65 TIN COATI...

Страница 23: ...L806 COIL BEAD HC 3550 10000 L807 COIL BEAD HC 3550 10000 R352 R METAL FILM 1 4 160K OHM F 10000 R353 R METAL FILM 1 4 15K OHM F 10000 R401 R CARBON FILM 1 4 4 7K OHM J 10000 R405 R CARBON FILM 1 2 75...

Страница 24: ...48A96420N1 A48JLL40X W X X V01 COIL DY 58D0000083 ODY M2050 X X F801 FUSE GLASS TUBE 5F1GB4021L UL CSA TL 4A 125V MF51 5FSGB4022L SEMKO TL 4A 250V MF51 I801 MODULE POWER 4850M04310 DPM001T1 4850M04710...

Страница 25: ...CTRO CEXF1H100V 50V RSS 10MF 5X11 TP X X X X C662 C ELECTRO CEXF1H339V 50V RSS 3 3MF 5X11 TP X X X X C666 C ELECTRO CEXF1H100V 50V RSS 10MF 5X11 TP X X X X C669 C ELECTRO CEXF1E101V 25V RSS 100MF 6 3X...

Страница 26: ...CHIP CERA HCFK474ZCA Y5V 50V 0 47MF Z 2012 X X X X CC220 C CHIP CERA HCBK103KCA 50V X7R 0 01MF K 2012 X X X X CC501 C CHIP CERA HCQK470JCA 50V CH 47PF J 2012 X X X X CC502 C CHIP CERA HCQK200JCA 50V C...

Страница 27: ...04710 DPM001T1A J021 WIRE COPPER 85801065GY AWG22 1 0 65 TIN COATING X X J201 WIRE COPPER 85801065GY AWG22 1 0 65 TIN COATING X X X X J206 WIRE COPPER 85801065GY AWG22 1 0 65 TIN COATING X X X X J209...

Страница 28: ...0 OHM 2012 JC509 R CHIP X X HRFT000 CA 1 10 0 OHM 2012 JC513 R CHIP X X HRFT000 CA 1 10 0 OHM 2012 JC601 R CHIP X X HRFT000 CA 1 10 0 OHM 2012 JC604 R CHIP HRFT000 CA 1 10 0 OHM 2012 X X X X JC680 R C...

Страница 29: ...90K OHM J RD 4Z514J 1 4 510K OHM J R883 POSISTOR DDC3R0M140 ECPCD3R0M140 DDC7R0M290 ECPCD7R0M290 DDC7R0M29 ECPCD7R0M290 RC202 R CHIP HRFT472JCA 1 10 4 7K OHM J 2012 X X X X RC203 R CHIP HRFT102JCA 1 1...

Страница 30: ...X X X RCA11 R CHIP HRFT101JC 1 10 100 OHM J 2012 X X X X RCA12 R CHIP HRFT101JC 1 10 100 OHM J 2012 X X X X RCA13 R CHIP HRFT224JC 1 10 220K OHM J 2012 X X X X RCA14 R CHIP HRFT914JC 1 10 910KOHM J 2...

Страница 31: ...DAEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC E mail leesk web dwe co kr TEL 82 2 360 7802 FAX 82 2 360 7877...

Страница 32: ...AN4 P85 AN5 P86 AN6 P87 AN7 RES FILT CVIN VS HS R G B BL I P60 SDA0 P61 SCLK0 P62 SDA1 P63 SCLK1 P70 INT0 P71 INT1 P72 INT2 TOIN P73 INT3 TOIN P00 P01 P02 P03 P04 P05 P06 P07 TV ONLY H CABLE H ST MONO...

Страница 33: ...f 16 x 32 dot characters used 16K bytes Various characters attributes Character colors 16 colors Character background colors 16 colors Fringe shadow colors 16 colors Full screen colors 16 colors Round...

Страница 34: ...C Interface FS 181 Channel AIR 2 69CH CABLE 1 125CH AFT Operation Fine Tuning 2 5Fn 2 5MHz AIR CABLE STD HRC IRC Only Cable 5 6CH is that AFT range is cover over broad band 2 5MHzFn 3 5MHz Memorize Ch...

Страница 35: ...a ENG SPA POR E2PROM Interface I 2C Bus Control CH 6 TRAP Function IS 31 PLL IC Band Data Control Byte 2 P3 P0 VHF L 1 VHF H 2 CH6 TRAP 5 IS 31 AIR Cable CH 6 Only UHF 8 5 The Table of Option and Sche...

Страница 36: ...DC_0V No Auto Tint 8 P17 PWM PWM Cn 220 only The 8 pin is a spare pin Pin 1 to Pin 8 8 bit input output port Input Output can be specified in a bit Ohter function This use cn220 but don t use cn001 9...

Страница 37: ...tal synchronization signal input terminal 22 R R Red output terminal of RGB image 23 G G Green output terminal of RGB image 24 B B Blue output terminal of RGB image 25 BL BL Fast blanking control sign...

Страница 38: ...P04 AKB Use when control AKB High Beam Hihg 5V Output 40 P05 Audio Mute Use only read data of LA76814 10 41 P06 Vudio White Use when TV set turns off 42 P07 Power Use when dose power off on Power Off...

Страница 39: ...CC RED OUTPUT GREEN OUTPUT BLUE OUTPUT B AKB INPUT VERTICAL OUTPUT RAMP ALC FILTER HOR BUS VCC HOR AFC FILTER HORIZONTAL OUTPUT AUDIO OUT FM OUTPUT PIF AGC RF AGC OUT PIF INPUT1 PIF INPUT2 IF GND IF V...

Страница 40: ...LE IC DESCRIPTION DPM 001 TI KSE 1 2 3 4 5 6 10 11 12 13 14 PIN NO DESCRIPTION PIN NO DESCRIPTION 1 GATE DRIVE 1 10 12V INPUT 2 OCP 11 POER CONTROL 3 SOURCE 12 NC 4 GND 1 13 GND 2 5 GATE 14 133V INPUT...

Страница 41: ...1 4 Max 2 C W Symbol Parameter Test Condition Min Typ Max Unit Vcc Supply Range 3 11 18 V Iq Total Quiescent Current 50 65 mA Vos Output offest Voltage 120 mV Po Output Power THD 10 6 3 7 W THD Total...

Страница 42: ...TUNER 33V R820 DR TRNS B 45V SOUND B 12V R817 R818 D812 5 6Vz Q805 C706 ST BY 5V 133V Q801 FET S R809 R802 G R803 D L802 C805 R804 Check F801 125V 4A Check D801 PBS208GU Check R801 7W 2 2 Check Voltag...

Страница 43: ...27 28 SDA SCL I101 SF101 SAW FILTER 5 6 10 8 11 12 Check IF Vcc 5V Check clock data signal Check clock data signal 3 4 Check IF AGC voltage Check RF AGC voltage 46 44 Z501 4 5M Trap Check the wavefor...

Страница 44: ...5V Check clock data signal 3 Check IF AGC voltage e I601 TDA7266S 3 13 4 f 52 54 Check SIF output signal If no signal then change I101 Check SIF input signal 9 5V Check FM filter circuit Check Vcc of...

Страница 45: ...ignal 3 Check IF AGC voltage e I601 TDA7267A 1 4 f 52 54 Check SIF output signal If no signal then change I101 Check SIF input signal 9 5V Check FM filter circuit Check Vcc of the sound AMP R601 C602...

Страница 46: ...MICOM 11 12 29 30 T DATA T CLOCK 5V 33V IF OUT 14 AFT 27 28 SDA SCL h AGC IN XC701 32 768KHz 10 ST BY 5V Check the crystal I703 EEPROM 8 ST BY 5V 5 6 SDA SCL Check SDA SCL Check 5V 33V LINE 15 C103 C...

Страница 47: ...21 RGB Vcc 9V Check the voltage R OUT G OUT B OUT Check R G B signal 43 Video Chroma Deflection Vcc Check the voltage X502 24 C507 C508 V RAMP ALC filter 5V Check the voltage 2 5V I301 LA7841 23 Vert...

Страница 48: ...Control PREAMP ST BY 5V GND 34 OUT Check the waveform I701 MICOM XC701 32 768KHz 10 11 12 ST BY 5V Check the crystal 24 25 SDA SCL I101 16 17 Check clock data signal 20 21 V SYNC IN H SYNC IN Check th...

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