Ch Don't Stop - Daewoo DTQ - FSPN Service Manual

4. CH DON'T STOP

Check the input signal conditions
h
XC701
32.768KHz
Check
5V
33V
5V/33V LINE
U102
IF OUT
TUNER
T-DATA T-CLOCK
AGC IN
C103
#29 #30
#15
AFT
#14
I701
MICOM
AFT window Voltage
SDA
#27
SCL
#28
SDA
#10 #11 #12
ST-BY #5
5V I703
EEPROM
Check
the crystal
ST-BY
NG : Loss of signal or weak signal
SF101
SAW FILTER
#4
RF AGC OUTPUT
Check
RF AGC Voltage
#10
Check
2.1V~2.5V
#11
#12
SCL
#6
Check
SDA/SCL
#8
5V
14
TROUBLESHOOTING GUIDE
OK : Go to the figure g
I101
#49
L501
VCO COIL
#48
Check
VCO coil
APPENDIX