Daewoo DTH-29M2FS, Руководство по обслуживанию

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11
TROUBLESHOOTING GUIDE Appendix
3. NO SOUND
Check audio output signal of I101 #1
NG : Go to the figure e
OK : Go to the figure f
Tu01
TUNER
I701
MICOM
X702
32.768KHz
#10 #11 #12
ST-BY
5V
#29 #30
Check
the crystal
SDA SCL
IF OUT
#14
AFT
#27
#28
SDA
SCL
SF101
SAW FILTER
Check
Vcc (5V)
Check
IF AGC VOLTAGE
e
I602
TDA8946J
SOUND AMP
#12(R
IN
)
#6(L
IN
)
f
Check
IF Vcc(5V)
Check
The crystal
Check
audio signal in
#17
speaker
Check
audio signal out
#10
Micom #40
Audio MUTE
H:Mute L:Normal
Check
H:Normal
L:PWR ON or OFF
XS601 18.432MHZ
#5
#6
#10
#3
#8
I101
IS601
MSP IC
#8 MSP-DATA
#7 MSP-CLK
Check
Vcc (5V)
MICOM#38
MSP-RESERT
RCSII
#46
#20
RESET
#16
#6
#3
IS601 #24
IS602 #25
VCC
#16
#14
#4
#1
R
OUT
L
OUT
Check
Vcc(13.5V)