Daewoo DVQ-13H1FC Service Manual page 21

TROUBLESHOOTING GUIDE
2-3) CHANNEL DON' T STOP
Check the input signal conditions.
e
33V
Check
SDA/SCL
#6
IS02
EEPROM
#5
#8
VCC
SDATA
Reset
#34
TIMER/SYSCON
VCC #37
#35
XCS01
Check
the X-TAL
5V
U102
TUNER
AGC IN
#65 #67 #10
#10
SCLK
ICS01
#71
#72
#56
#36 #38 #39
XS02
NG : Loss of signal or weak signal
OK : GO to the figure
Check
Voltage
IF OUT
CC116
Check
AGC Voltage
#3
AFT
#10
Check
Signal
MCLK
#12
MDATA
#11
Caption CVS
#40
Check Waveform
CVS 2Vp-p
20
e
Check
IF Vcc(5V)
Z101
SAW FILT
#5 #6 #8
I501
#48
VCO COIL
#49
Check
VCO COIL
L110