23
TROUBLESHOOTING GUIDE
2-6) NO ON-SCREEN DISPLAY
I501
DCT814B
XCS01
#64
32KHz
Check
the crystal
OSD R
Check
data/clock signal
Check
the waveform
ICS01
TIMER/SYSCON
OSD G
OSD B
BLANK
#63
#62
#60
#14
#15
#16
#17
#71
#72
MCLK
MDATA
XS02
LS01
16MHz
#35
#36 #38
#39 #44 #45
Check
OSD R/G/B/BLK
signal
#12
#11
#58
#59
H.SYNC
V.SYNC
Check
the signal
(15,734Hz)
Check
the signal
(60Hz)
#37
#34
RESET
Vcc(5V)
If OSD does not operate,
then change the ICS01
Содержание DVQ-13H1FC
Страница 7: ...6 BLOCK DIAGRAM ...
Страница 8: ...7 BLOCK DIAGRAM PH01 ...
Страница 15: ...14 IC DESCRIPTION IC501 DCT814B LA76814B IC VIDEO PROCESSOR ...
Страница 16: ...15 IC DESCRIPTION ICY01 LA71550M IC VCR Y C AUDIO PROCESSOR ...
Страница 45: ...44 EXPLODED VIEW 1 DVQ 19H2FC ...
Страница 46: ...45 EXPLODED VIEW 2 DVQ 19H1FC ...
Страница 47: ...46 EXPLODED VIEW 3 DVQ 13H2FC ...
Страница 48: ...47 EXPLODED VIEW 4 DVQ 13H1FC ...