22
TROUBLESHOOTING GUIDE
2-5) NO VERTICAL DEFLECTION
I501
DCT814B
5V
#24
X501
3.58MHz
Check
the crystal
#38
L502
Chroma/DEF Vcc
#43
Check
the voltage
CC508
CC507
Check
the voltage
(2.5V)
V RAMP
ALC filter
#23
I301
LA7841
RC301
#5
#2
Check
vertical output
signal
Invert RAMP
IN
OUTPUT
VERTICAL
D.Y
Check
the waveform
If no output
then change I301
#6
D404
Vertical IC Vcc(26V)
From
FBT
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 ...