Daewoo DVQ-13H1FCN User Manual

20
TROUBLESHOOTING GUIDE
3-3) NO PICTURE PLAYBACK
Check the waveform of ICY01 #27
NG : GO to the figure j
OK : GO to the figure k
ICY01
VCR Y/C/AUDIO/HA AMP
LA71076AM
XS01
32KHz
Check
the crystal
Check
the voltage
ICS01
TIMER/
SYSCON
#2
0
#1
8
XS02
16MHz
#3
5
#3
6
#38
#3
9
#3
7
#3
4
RESET
Vcc(5V)
j
#9
8
#99
Vcc(5V)
Vcc(5V)
Check
the voltage
(5V)
Video Envelope
REC H
Check
the crystal
#11 #13
Check
CTL signal
#8
2
#8
5
If PB RF no signal,
then change the ICY01.
2HEAD DRUM
#8
7
#2
1
#54
#56/57
Y Vcc
HA Vcc
CCD Vcc
C Vcc
PB L
VH SW Pulse
#16
#14
#7
0
#6
Check
the waveform
(30Hz)
Check
waveform
#83/84
#74
#9
4
#9
5
CTL(-) CTL(+)
#9
7
Check
Control pulse
C-ROT pulse
#15
#16 #93
HA SW Pulse
#15 #35
Video OUT
TO I501 #42
Check
the waveform
(1Vp-p)
Appendix

Daewoo DVQ-13H1FCN Specifications

General

Brand	Daewoo
Model	DVQ-13H1FCN
Category	TV VCR Combo
Language	English