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

Models: DTQ-14V1FS/20V1FS DTQ-14U1FS/20U1FS DTQ-14U1FSP/20U1FSP DTQ-14V5FC/20V4FC DTQ-14V5FSP/20V4FSP DTQ-14V1FC/20V1FC DTQ-14V1FSP/20V1FSP DTQ-14V5FS/20V4FS DTQ-14V3FS/20V3FS

1 42
Download 42 pages 18.33 Kb
Page 27
Image 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

Page 27
Image 27
Daewoo DTQ-14V1FC/20V1FC, DTQ-14U1FSP/20U1FSP, DTQ-14V1FS/20V1FS No ON-SCREEN Display, Remote Control does not Operate