-52-
TROUBLESHOOTING GUIDE
3-6) NO RECORD PICTURE
Check the waveform of ICY01 #40
NG : GO to the figure
2-1 (TV PART)
OK : GO to the figure m
ICY01
VCR Y/C
LA71076AM
XS01
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)
C-ROT Pulse
PB L
Check
the crystal
#16 #17
Check
SCL/SDA signal
If REC Y/C no signal,
then change the ICY01.
2HEAD DRUM
#21
#54
#56/57
#87
HA Vcc
C Vcc
CCD Vcc
Y Vcc
#19
#15
#20
#18
Check
waveform(30Hz)
#61
#66
#82
#83/84
#94
#95
CTL
HEAD
CTL(+)
CTL(-)
Check
the waveform
(30Hz)
#99
#97
m
VH SW Pulse
REC H
HA SW Pulse
#85
Check
the crystal
XY01
3.58MHZ
#62
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: ......