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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
#34RESET
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
#11Y 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