-49-
TROUBLESHOOTING GUIDE
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)
k
#9 8
#9 9
Vcc(5V)
Vcc(5V)
Check
the waveform
Check
the voltage
(5V)
VH SW Pulse
REC H
Check
the crystal
#1 1 #1 3
Check
CTL signal
I501
CHROMA
LA76845
#4 2
#3 5
If CVS no signal,
then change the ICY01.
CVS
#2 1
#54
#56/5 7
#8 7
HA Vcc
C Vcc
CCD Vcc
Y Vcc
#12 #1 1
#7 2
#71
#5 6
MDATA
MCLK
Check
MCL/MDA signal
#4 0
Caption
CVS
R OUT
G OUT
B OUT
See the 2-1) TV NO
PICTURE
#2 1
#2 0
#1 9
Check
the waveform
C-ROT Pulse
HA SW Pulse
PB L
#15 #1 6 #70
#14 #15 #1 6
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: ......