18
TROUBLESHOOTING GUIDE
2. TV PART
2-1) NO PICTURE
Check the waveform of I501 #46
NG : GO to the figure
a
OK : GO to the figure
b
Check
Voltage
a
U102
TUNER
ICS01
TIMER/SYSCON
33V
5V
#65
#67
MDATA
MCLK
Check
Signal
I501
Z101
SAW FILT
IF OUT
#5
#6
#10
#10
AFT
#8
Check
IF Vcc(5V)
#71
#72
SCLK
SDATA
#12
#11
Check
Signal
Check
Voltage
#3
#4
#46
#44
Z502
4.5M
TRAP
Check
Waveform
#35
#36
#38
#39
Check
the X-TAL
XS02
XCS01
#37
#34
Check
Reset
VCC
b
I501
#44
Check
Signal
Z502
CC527
#18
Check
Vcc(9V)
#19
#20
#21
Check
RGB Signal
#43
#25
#13
Check
ABL current
T402
FBT
Check
CHROMA Vcc(5V)
Check
HOR. Vcc(5V)
D401
R403
Check
Heater Vp-p
6.2Vrms
Check
200V LINE
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 ...