Daewoo DTQ-14V1FC/20V1FC, DTQ-14V1FS/20V1FS No ON-SCREEN Display, Remote Control does not Operate

Page 27

ROUBLESHOOTING GUIDE

7. NO ON-SCREEN DISPLAY

Check

 

 

SDA

 

the signal (60Hz)

 

 

SCL

 

 

 

 

 

V.SYNC IN

 

 

 

 

#20

 

 

 

 

 

I701

 

Check

 

H.SYNC IN

MICOM

clock/data signal

I101

#21

 

 

 

#22

OSD R

 

Check

 

#14

 

 

 

OSD G

 

the signal (15,734Hz)

 

#23

 

 

#15

 

 

 

 

 

 

#24

OSD B

 

 

 

#16

 

 

 

#25

BLANK

 

 

 

#17

 

#10

#11

#12

 

 

XC701

 

 

 

 

32.768KHz

 

ST-BY

Check

 

 

 

 

 

 

OSD R/G/B/BLANK signal

 

 

 

5V

 

 

 

 

 

Check

 

 

 

the crystal

 

 

 

 

 

 

If OSD does not operate,

 

 

 

 

then change the I701

 

8. REMOTE CONTROL DOES NOT OPERATE

 

OUT

 

 

 

IL701

#34

Remote Control

 

 

 

 

 

PREAMP

I701

 

GND

 

 

 

 

 

 

MICOM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST-BY

 

Check

 

 

 

5V

 

 

 

 

 

 

 

the waveform

#10 #11 #12

XC701

32.768KHz

ST-BY 5V

Check

the crystal

26

Image 27
Contents Color Television Page Product Safety Servicing Guidelines for Audio Video Products Safety Checks Subject Implosion Items SpecificationsDiagram Alignment Instructions Service Mode AdjustmentsAlignment Instructions Assembly AdjustmentsFocus Adjustment White Balance ADJUSTMENTS8 Contrast COMI701 IC DescriptionAbstract Function Table of Option and Schedule Pin Description IC Description IC Description I101 DPM No Power Troubleshooting GuideMicom No PictureMicom No SoundMicom CH DON’T StopNo Vertical Deflection No ColorNo ON-SCREEN Display Remote Control does not OperateLOC Part Code Part Name Description Electrical Parts ListElectrical Parts List DUZ9R1BM Diode Zener Metal Film 1W 3.6 OHM J Small HRFT472FCA Chip Exploded View DTQ-14V3FS DTQ-14V5FC / FS DTQ-14U1FS DTQ-20V1FS DTQ-20V3FS DTQ-20V4FS DTQ-20U1FS Mon Aug 09 094804 Mail G7F00E@web.dwe.co.kr TEL 82-2-360-8179~8180/8187 FAX
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