-50-
TROUBLESHOOTING GUIDE
3-4) NO COLOR PLAYBACK
ICY01
VCR Y/C
LA71076AM
XS01
32KHz
Check
the crystal
Check
the voltage
ICS01
TIMER/
SYSCON
#2 0 #18
XS02
16MHz
#3 5
#3 6
#3 8
#3 9
#3 7
#34
RESET
Vcc(5V)
#9 8
#9 9
Vcc(5V)
Vcc(5V)
Check
the waveform
Check
the voltage
(5V)
Check
the crystal
#1 1
Check
CTL signal
I501
CHROMA
LA76845
#4 2
#3 5
If CVS no signal,
then change the ICY01.
CVS
#21
#5 4
#56/57
#8 7
HA Vcc
C Vcc
CCD Vcc
Y Vcc
#1 2 #1 1
#7 2
#7 1
#1 6
MDATA
MCLK
Check
MCL/MDA signal
#4 0
Caption
CVS
R OUT
G OUT
B OUT
See the 2-4) TV NO
COLOR
#2 1
#2 0
#1 9
XY01
#66
#6 7
3.58MHz
Check
the crystal
Check
the waveform
#1 3 #1 4 #1 5 #16
#15
#70
REC H
VH SW Pulse
VH SW Pulse
C-ROT Pulse
PB L
#5 6
#4 9
#46
Appendix
Содержание DVQ-10H1FCN
Страница 7: ...6 CIRCUIT BLOCK DIAGRAM...
Страница 8: ...7 CONNECTION DIAGRAM...
Страница 14: ...13 SCHEMATIC DIAGRAM POWER DEF...
Страница 15: ...14 SCHEMATIC DIAGRAM MAIN...
Страница 17: ...16 PRINTED CIRCUIT BOARD MAIN...
Страница 18: ...17 PRINTED CIRCUIT BOARD POWER DEF...
Страница 36: ...35 IC DESCRIPTION IC501 LA76845 IC VIDEO PROCESSOR Appendix H SYNC V SYNC...
Страница 37: ...36 IC DESCRIPTION ICY01 LA71076M IC VCR Y C AUDIO PROCESSOR Appendix...
Страница 39: ...38 TROUBLESHOOTING GUIDE 1 2 DC NO POWER Appendix...
Страница 56: ......