TROUBLESHOOTING GUIDE

Appendix

7. NO ON-SCREEN DISPLAY

Check the signal(60Hz)

V. SYNC

H. SYNC

Check

the signal(15.73Hz)

Check data/clock signal

 

SDA

#20

SCL

 

 

#21

 

 

 

I701

 

 

 

 

 

MICOM

 

 

 

 

 

 

#22

 

OSD R

 

 

 

OSD G

 

 

#23

 

 

 

 

OSD B

 

 

 

#24

 

 

 

 

BLANK

 

 

#25

 

 

 

 

 

 

#10

#11

#12

 

 

 

I501

VDP3130Y

#41

#42

#43

#44

X701 ST-BY 5V

Check the crystal

Check OSD R/G/B/BLANK signal

If OSD doesn’t operate, I701 replace new product

8. REMOTE CONTROL DOES NOT OPERATE

 

 

 

 

 

 

 

 

 

 

IL701

#34

 

OUT

REMOCON

 

 

 

 

PREAMP

I701

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MICOM

 

 

 

ST-BY 5V

 

 

Check the waveform

#10 #11 #12

ST-BY 5V X701

Check the crystal

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Image 64
Daewoo DTQ-29U5SC/SSP, DTQ-29U1SC/SSP service manual Remote Control does not Operate