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