Baza Porad Serwisowych
LA8604M, LA8604V - FM IF system
Compander
47k
Mixer 20k
2200p
input
Vcc
82p
2200p
10k
82p
47k 47k 47k 330k
100k
100k
100k 0.1u
0.047u
100p
To CPU
24 23 22 21 20 19 18 17 16 15 14 13
Noise
detector
Op amps x 3
Schmitt
trigger
RSSI FM
IF amplifier
detector
Oscillator Mixer
10pF
1k8
1 2 3 4 5 6 7 8 9 10 11 12
82p
To CPU
33k
270k
0.047u
22p
100k
0.1u
1k5
SFU455A
21.245MHz
0.1u
CDB455C7
120p (MURATA)
(MURATA)
Vcc
0.047u
100u
SERWIS ELEKTRONIKI