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TROUBLESHOOTING GUIDE

2. NO PICTURE

Check the waveform of I101 #46

NG : GO to the figure c

OK : Go the figure d

U102

TUNER

I701

MICOM

XC701

32.768KHz

#10

#11 #12

ST-BY

#29 #30

Check

the crystal

T-DATA T-CLOCK

33V

IF OUT

Check

the voltages

#14

AFT

#27

#28

SDA

SCL

I101

SF101

SAW FILTER

#10

#11

#12

Check

IF Vcc (5V)

Check

clock/data signal

Check

clock/data signal

Check

IF AGC voltage

Check

RF AGC voltage

#46

#44

Z501

4.5M Trap

Check

the waveform

I101

#44

Z501

C525

Check

composite video

#18

Check

RBG Vcc (9V)

#19
#20
#21

Check

RBG signal output

T402

FBT

#13

Check

ABL current

#25

Check

HOR/BUS Vcc(5V)

#43

Check

CHROMA/VER Vcc(5V)

D405

Check

200V LINE

R412

Check

heater voltage

21V

-3V

Содержание DTQ-14U1FCP

Страница 1: ...erica AC 110V Mexico Chile Peru AC 220V DAEWOO ELECTRONICS CO LTD http svc dwe co kr MUTE POWER CH CH VOL VOL DISPLAY INPUT VIDEO SLEEP PREVIOUS 1 2 3 4 5 6 7 8 0 9 DTQ 14U1FS DTQ 14V5FC DTQ 14V3FC DT...

Страница 2: ...RECEIVERS 3 SPECIFICATIONS 5 BLOCK DIAGRAM 6 ALIGNMENT INSTRUCTIONS 7 SERVICE MODE ADJUSTMENTS 7 ASSEMBLY ADJUSTMENTS 8 IC DESCRIPTION 12 TROUBLE SHOOTING CHARTS 21 NO POWER 21 NO PICTURE 22 NO SOUND...

Страница 3: ...PICTURE TUBE HOWEVER THIS TUBE DOES NOT EMIT X RAYS WHEN THE HIGH VOLT AGE IS AT THE FACTORY SPECIFIED LEVEL THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC OPERATION AT HIGHER VOLT AGES MAY CA...

Страница 4: ...ck hazard and must be corrected imme diately GRAPHIC SYMBOLS The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the service personnel to the presence of unin...

Страница 5: ...4 Wall and shelf mounted installations using a commercial mounting kit must follow the factory approved mounting instructions A receiver mounted to a shelf or platform must retain its original feet o...

Страница 6: ...nthesizer FS Tuning System TUNING RANGES VHF 2 13 12 UHF 14 69 56 CATV 1 125 125 SOUND OUTPUT 1 3 W 1 3 W 1 3 W 1 3 W SPEAKER 3 W 8 ohm ANTENNA INPUT IMPEDANCE 75 ohm Unbalanced AUXILIARY INPUT TERMIN...

Страница 7: ...PLL DEMOD AGC AFT IF VCC 5V Z501 TRAP 4 5MHz L501 VCO VOIL 49 48 CHROMA LUMINANCE PROCESS HORIZONTAL VERTICAL PROCESS 46 44 ABL 13 VIDEO VER VCC 5V 43 EXT V IN 42 X RAY 34 19 20 21 RED GREEN BLUE 1 2...

Страница 8: ...into the red Press the volume 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...

Страница 9: ...SI 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 f...

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: ...P84 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...

Страница 14: ...nds of 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...

Страница 15: ...PLL IC 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 Memor...

Страница 16: ...America ENG SPA POR E2PROM Interface I2C 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...

Страница 17: ...16 IC DESCRIPTION 6 Pin Description...

Страница 18: ...17 IC DESCRIPTION...

Страница 19: ...18 IC DESCRIPTION...

Страница 20: ...RGB VCC 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...

Страница 21: ...801 POWER CONTROL MODULE PIN NO DESCRIPTION PIN NO DESCRIPTION 1 GATE DRIVE1 10 12V INPUT 2 OCP 11 POWER CONTROL 3 SOURCE 12 NC 4 GND1 13 GND2 5 GATE 14 133V INPUT 6 GATE DRIVE2 DPM 001 TI KSE 1 2 3 4...

Страница 22: ...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...

Страница 23: ...4 AFT 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 wa...

Страница 24: ...28 SDA SCL I101 SF101 SAW FILTER 5 6 10 8 11 12 Check IF Vcc 5V Check clock data signal 3 Check IF AGC voltage e I601 TDA7267A 1 4 f 52 54 Check SIF output signal If no signal then change I101 Check S...

Страница 25: ...I701 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 C1...

Страница 26: ...19 20 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...

Страница 27: ...ote 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 Chec...

Страница 28: ...107 CEXF1H228V C ELECTRO 50V RSS 0 22MF 5X11 TP C301 CMXB1H103J C MYLAR 50V EU 0 01MF J TP C302 CEXF1H479V C ELECTRO 50V RSS 4 7MF 5X11 TP C303 CEXF1H100V C ELECTRO 50V RSS 10MF 5X11 TP C305 CEXF1H101...

Страница 29: ...3KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC153 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 LOC PART CODE PART NAME DESCRIPTION CC154 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC155 HCBK103KCA C CHIP...

Страница 30: ...9710A JP03 4859109150 JACK PIN BOARD PH JB 9615C LOC PART CODE PART NAME DESCRIPTION L111 58C5580019 COIL CHOKE TRF 9225 0 55UH L112 5CPZ220K02 COIL PEAKING 22UH K AXIAL 3 5MM L501 58N0000042 COIL VC...

Страница 31: ...1 4 560 OHM J R820 RD 4Z392J R CARBON FILM 1 4 3 9K OHM J LOC PART CODE PART NAME DESCRIPTION R822 RD 4Z363J R CARBON FILM 1 4 36K OHM J R883 DEC7R0M140 POSISTOR ECPAC7R0M140 R888 RC 2Z565KP R CARBON...

Страница 32: ...10 3 9K OHM J 2012 RC792 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC793 HRFT102JCA R CHIP 1 10 1K OHM J 2012 LOC PART CODE PART NAME DESCRIPTION RC794 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC795 HRFT103JCA...

Страница 33: ...32 EXPLODED VIEW 1 DTQ 14V1FS...

Страница 34: ...33 EXPLODED VIEW 2 DTQ 14V3FS...

Страница 35: ...34 EXPLODED VIEW 3 DTQ 14V5FC FS...

Страница 36: ...35 EXPLODED VIEW 4 DTQ 14U1FS...

Страница 37: ...36 EXPLODED VIEW 5 DTQ 20V1FS...

Страница 38: ...37 EXPLODED VIEW 6 DTQ 20V3FS...

Страница 39: ...38 EXPLODED VIEW 7 DTQ 20V4FS...

Страница 40: ...39 EXPLODED VIEW 8 DTQ 20U1FS...

Страница 41: ...1 Mon Aug 09 09 48 04 1999...

Страница 42: ...AEWOO 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 G7F00E web dwe co kr TEL 82 2 360 8179 8180 8187 FAX 82 2 360 8184...

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