Daewoo DTQ-15U5SSPG User Manual download pdf (Page 34)

6

TU01

TUNER

I701

MICOM

X702

32.768KHz

#10 #11 #12

ST-BY

5V

#29 #30

Check

the crystal

SDA

SCL

5V

33V

IF OUT

Check

the voltages

#14

AFT

#29

#30

SDA

SCL

I501

SF101

SAW FILTER

#7 #6

#55

#1

#35

#34

Check

IF Vcc (5V)

Check

clock/data signal

Check

clock/data signal

#10

#8

Check

IF AGC voltage

Check

RF AGC voltage

#54

#43

Z501

4.5M Trap

Check

the waveform

c

I501

#43

I502

C502

Check

composite video

#14

Check

RBG Vcc (9V)

#16

#17

#18

Check

RBG signal output

T402

FBT

#28

Check

ABL current

#31

Check

HOR Vcc(9V)

#42

Check

CHROMA/VIDEO Vcc(5V)

D404

Check

200V LINE

R410,R954

Check

heater voltage

d

21V

-3V

Appendix

TROUBLESHOOTING GUIDE

2. NO PICTURE

Check the waveform of I501 #54

NG : GO to the figure

OK : Go the figure

1 2 ... 29 30 31 32 33 34 35 36 37 38 39

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