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