20
TROUBLESHOOTING GUIDE
2-3) CHANNEL DON’T STOP
Check the input signal conditions.
NG : Loss of signal or weak signal
OK : GO to the figure
e
Check
Voltage
e
U102
TUNER
ICS01
TIMER/SYSCON
33V
5V
#65
#67
MDATA
MCLK
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
AGC Voltage
#3
#48
#49
#35
#36
#38
#39
Check
the X-TAL
XS02
XCS01
#37
#34
VCC
Check
VCO COIL
#10
AGC IN
CC116
L110
VCO COIL
#56
#40
Caption CVS
Check Waveform
CVS 2Vp-p
Reset
IS02
EEPROM
#6
#5
#8
VCC
Check
SDA/SCL
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 ...