Daewoo DTQ-29S2FCC Service Manual page 34

TROUBLESHOOTING GUIDE
4. CH DON'T STOP
Check the input signal conditions
.
I
X701
32.768KHz
Check
33V 5V
5V/33V LINE
U102
IF OUT
TUNER
T-DATA T-CLOCK
AGC IN
C103
#29 #30
#15
AFT
#14
I701
MICOM
SDA
#10 #11 #12
ST-BY
5V
Check
the crystal
Check
RF AGC Voltage
Check
AFT window Voltage
2.1V~2.5V
FROM I701 SDA
SCL
SCL
#5 #6
I703
Check
EEPROM SDA/SCL
#8
ST-BY
5V
11
NG : Loss of signal or weak signal
OK : Go to the figure i
SF101
SAW FILTER
#4
RF AGC OUTPUT
#10
I101
#11
#12
#49
VCO COIL
#48
Check
VCO coil
Appendix
L501