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4) no color playback, Troubleshooting guide – Daewoo DVQ-13H1FC User Manual

Page 30

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29

TROUBLESHOOTING GUIDE

3-4) NO COLOR PLAYBACK

ICY01

VCR Y/C

LA71550M

XCS01

32KHz

Check

the crystal

Check

the voltage

ICS01

TIMER/

SYSCON

#65 #67

XS02

16MHz

#35

#36

#38

#39

#37

#34

RESET

Vcc(5V)

#98

#99

Vcc(5V)

Vcc(5V)

Check

the waveform

Check

the voltage

(5V)

SCLK

SDATA

Check

the crystal

#16 #17

Check

SCL/SDA signal

I501

CHROMA
DCT814B

#42

#27

If CVS no signal,
then change the ICY01.

CVS

#58

#56

#39

#11

Y Vcc

SW Vcc

CCD Vcc

C Vcc

#12 #11

#72

#71

#56

MDATA

MCLK

Check

MCL/MDA signal

#40

Caption

CVS

R OUT

G OUT

B OUT

See the 2-4) TV NO
COLOR

#21

#20

#19

XY01

#66

#67

3.58MHz

Check

the crystal

Check

the waveform

#13

#12

Check

the waveform

#52

#63

CCD

BLOCK