3. NO SOUND
Check audil output signal of I501 #8
NG : Go to the figure E
OK : Go to the figure F
E
33V
5V
U101
TUNER
#13
#14
I701
MICOM
#50 #51
SCL
SDA
Check
clock/data signal
SF102
SAW FILTER
|
| Check |
|
| SIF input signal |
#8 | #9 |
|
#2 | #12 |
|
| Check | |
#3 |
| |
| IF AGC voltage |
I501
#6 
Check
X701 | Check |
4MHz | the crystal |
|
Audio output signal
F
Check
Vcc of the Sound AMP
Check
Audio output signal
SOUND B+
16V
C602
Audio IN 
Check
Audio signal in
#1#2
I601
TDA7267A
#4 | #3 |
|
| SPEAKER | |
C606 |
|
| 3W 8ohm |
|
|
| |
R612 |
|
| MICOM #42 |
|
| RC610 | |
|
| Audio MUTE | |
|
|
| |
C601 |
|
| H:Mute |
|
| L:Normal | |
| Q601 |
| |
|
|
| |
Check |
|
|
|
H:Mute L:Normal |
|
|
|
