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