Ch Don't Stop - Daewoo DTH-14V1FS Service Manual

4. CH DON'T STOP

C heck the input signal conditions
g
5V
33V
TU N ER
T-DATA T-CLOCK
#29 #30
I701
M IC O M
#10 #11 #12
X701
32.768KH z
Check
the crystal
Check
5V/33V LINE
U 102
IF O UT
AGC IN
C 103
#15
AFT
#14
Check
AFT w indow Voltage
2.1V~2.5V
SDA
#27
SCL
#28
SDA SCL
ST-BY
#5 #6
I703
5V
E EP R O M
#8
ST-BY
5V
N G : Loss of signal or w eak signal
O K : G o to the figure
S F101
S AW FILTE R
#4
R F A GC OU T PU T
Check
RF AGC Voltage
#10
#11
#12
Check
SDA/SCL

Troubleshooting Guide

I101
#49
L501
VCO CO IL
#48
Check
VCO coil