Daewoo DTQ-29U1SC/SSP, DTQ-29U5SC/SSP service manual No Sound

Page 61

TROUBLESHOOTING GUIDE

Appendix

3. NO SOUND

Check MSP output data signal of I601 #28, #29

NG : Go to the figure (e)

OK : Go to the figure (f)

 

(e)

33V 5V

U101

TUNER

SIF

T-DATA T-CLOCK

#27 #28

I701

MICOM

#29

#30

#10

#11

#12

X701 ST-BY

32.768KHz5V

Check the crystal

(f)

SIF OUT

 

 

#58

#63

 

 

 

#62

 

 

 

I601

 

 

 

MSP

 

 

 

#57

 

 

#10

#39

SDA

 

#9

#18

SCL

 

 

Check clock/data signal

Check

the crystal X601 18.432MHz

Check Vsup +5V

Check Vsup +8V

Check Vsup +5V

Check Vcc of sound AMP

Sound B+ 14V

Audio input L

Audio input R

MUTE

#3#16

#1

#14

#6I602 TDA8944J

#12

#4

#10

#17

Check audio output signal Speaker L Speaker R

H-phone L

H-phone R

Check audio input signal

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Image 61 Contents
Color Television Table of Contents Safety Checks Safety PrecautionsSafety Precautions Subject Implosion NTSC-M SpecifictionCircuit Block Diagram Mute Alignment InstructionAlignment Instruction Table-B Assembly Adjustments White Balance ADJUSTMENTS8 Contrast Electrical Parts List Electrical Parts List IC Regulator HRFT102JBA Chip HRFT122JBA Chip HRFT471JBA Chip CEXF1E222V Electro Term PIN Oxide Film OHM J Small CEXF1H228V Electro CMXM2A682J Mylar PCB Main CCZB1H333K Cera 581 J009 85801065GY 626 J054 85801065GY 671 J099 85801065GY Coil Peaking Carbon Comp TKTC4370AY Metal Film 2W 24 OHM J Small 896 J908 85801065GY 941 R943 RD-AZ683J Different Parts List Schematic Diagram Explode View 485009KU Printed Circuit Board CN-794N/MAIN / Top Printed Circuit Board CN-794N/MAIN / Silkscreen Bottom Printed Circuit Board CN-794N/MAIN / Silkscreen Top Printed Circuit Board CN-794N/MAIN / Drill Drawing Printed Circuit Board CN-794N/MAIN / Solder Mask Top Printed Circuit Board CN-794N/CRT / Top Printed Circuit Board CN-794N/CRT / Silkscreen Bottom Printed Circuit Board CN-794N/CRT / Silkscreen Top Printed Circuit Board CN-794N/CRT / Drill Drawing Printed Circuit Board CN-794N/CRT / Solder Mask Top Appendix IC DescriptionIC Description I501 VDP3130Y Appendix RIN2 Waveforms Waveforms Appendix SVM Q909 Base 18 I901 PIN7 Rout No Power Troubleshooting GuideTroubleshooting Guide No Sound CH DON’T Memory or Skip I501 VDP3130Y Remote Control does not Operate