-62-
TROUBLESHOOTING GUIDE
Appendix
7. NO ON-SCREEN DISPLAY
8. REMOTE CONTROL DOES NOT OPERATE
V. SYNC
Check the signal(60Hz)
Check data/clock signal
I501
VDP3130Y
IL701
REMOCON
PREAMP
I701
MICOM
I701
MICOM
H. SYNC
ST-BY 5V
ST-BY 5V
ST-BY 5V
#20
#22
#23
#24
#25
#41
#42
#43
#44
#12
#11
#10
#12
#34
#11
#10
X701
Check
the crystal
X701
Check
the crystal
Check OSD R/G/B/BLANK signal
Check the waveform
If OSD doesn’t operate,
I701 replace new product
Check
the signal(15.73Hz)
SDA
SCL
OSD R
OSD G
OSD B
BLANK
OUT
#21
Содержание DTQ 27U4SC
Страница 7: ... 6 CIRCUIT BLOCK DIAGRAM ...
Страница 14: ... 13 SCHEMATIC DIAGRAM 20U4 SHEET 1 ...
Страница 15: ... 14 SCHEMATIC DIAGRAM 20U4 SHEET 2 ...
Страница 16: ... 15 SCHEMATIC DIAGRAM 27U4 SHEET 1 ...
Страница 17: ... 16 SCHEMATIC DIAGRAM 27U4 SHEET 2 ...
Страница 46: ... 45 PRINTED CIRCUIT BOARD CN 230F MAIN ...
Страница 47: ... 46 PRINTED CIRCUIT BOARD CN 230F 20U4 CRT ...
Страница 48: ... 47 PRINTED CIRCUIT BOARD CN 230F 27U4 CRT ...
Страница 57: ... 56 WAVEFORMS Appendix 17 SVM Q909 BASE 18 I901 PIN7 ROUT ...
Страница 64: ...PRINTED DATE Mar 2003 ...