No Sound - Daewoo DTH-2930SSFV Service Manual

TROUBLESHOOTING GUIDE

3. NO SOUND

Check The Output Signal of I701 #57,58
(C)
CHECK
CLOCK,DATA
CHECK THE
CRYSTAL
(D)
CHECK THE
VOLTAGE
AUDIO INPUT
CHECK THE
INPUT SIGNAL
TU101
TUNER
Z101
Z101
SAW FILTER
SAW FILTER
SCL/SD
#7,8
#18,1
5V #5
13V #7
#2,4
NG : Go To The Figure (C)
OK : Go To The Figure (D)
IF
SIF
#33
I701
#22,43,45,63,80
#9,16,86,88
X701
24.576MHz
I601
LA42072N
#8,9,11,12
#6
MUTE
-32-
Appendix
33V
CHECK
THE
5V VOLTAGE
5V
3.3V
CHECK THE
VOLTAGE
AUDIO OUTPUT
CHECK THE
OUTPUT
SIGNAL
CHECK THE
MUTE
SIGNAL(H:ON)