16
TROUBLESHOOTING GUIDE
2-6) NO ON-SCREEN DISPLAY
I501
DCT814B
S01
#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
X
Appendix
Содержание DVQ-13H1FCN
Страница 7: ...6 CIRCUIT BLOCK DIAGRAM...
Страница 8: ...7 CIRCUIT BLOCK DIAGRAM...
Страница 14: ...13 SCHEMATIC DIAGRAM AUDIO VIDEO VERTICAL HORIZONTAL...
Страница 15: ...14 EXPLODED VIEW 1 DVQ 19H2FCN 4857246201 4851941600 4859813091 48A96220C1 SPTH C T0 5 DRN 9200 A48AGY13X...
Страница 16: ...15 EXPLODED VIEW 2 DVQ 19H1FC 48572462011 4851941600 4859813091 48A96220C1 SPTH C T0 5 DRN 9200 A48AGY13X...
Страница 18: ...17 EXPLODED VIEW 4 DVQ 13H1FC T025 ET T0 4 330 246 T1 6 A34KQV42X...
Страница 19: ...18 PRINTED CIRCUIT BOARD...
Страница 35: ...7 IC DESCRIPTION IC501 DCT814B LA76814B IC VIDEO PROCESSOR Appendix...
Страница 36: ...8 IC DESCRIPTION ICY01 LA71076M IC VCR Y C AUDIO PROCESSOR Appendix...