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ANT
Q12
RF SWITCH
Q13
AMPLIFIER
T3
FILTER 1 3
Q8
AMPLIFIER 1 3 [5]FMIF IN [12]LOUT
D2
[5]A1IN [11]FILTER
CF1
2
CF2
2
Q9
AGC SWITCH [18]OUT1
SOUND PROCESSOR IC
IC1 C1BB00001070
[9]C1IN +3.3V +5V [13]SC [14]SI [17]OUT1 [15]VCC
IC301 C1BB00000496
TUNER
[21]PLL VCC
T2
AM OSC FILTER [25]AM_OSC [16]XI
D4 Q2,Q4
RF CONTROL SWITCH [26]FM/TV OSC [15]XO [8]QUAD [22]DATA [23]CLOCK [24]CE [11]LPF1 [12]LPF2 [10]MPXIN
X2
[20]D0 [17]PLLGND
X1
[9]DETOUT
[7]L_IN
Q101
MUTING SWITCH
[6]R_IN [8]RIPPLE_FILTER
POWER AMP
IC302 C0AAAA000036
[11]L_OUT
JK302
EARPHONE
Q1
AMPLIFIER
[4]PRE_GND
P301 1
JW301
SP1
TO CONTROL BLOCK DIAGRAM
FCC501 FP501 1,2,3 FCC501 FP501 19
SPEAKER
Q402
VOLTAGE REGULATOR +B
FFC501 21 FFC501
FP501
Q401
VOLTAGE REGULATOR
TO CONTROL BLOCK DIAGRAM
MUTE_A
FP501 4,5 FFC501 FP501 6
D407,D408
+3.3V
Q403
POWER SWITCH PDET FP501 9 FP501 8 FFC501 FFC501
TO CONTROL BLOCK DIAGRAM
D402
+3.3V
QR401
FFC501 FP501 10 TUN_PON POWER CONTROL
TO CONTROL BLOCK DIAGRAM TO POWER BLOCK DIAGRAM
1 OUT 5
+3.3V
D403
VOLTAGE GND 2 REGULATOR
IN
1
IC402 C0CBCBC00102
Q404
+5V POWER SWITCH
1 OUT
TO CONTROL BLOCK DIAGRAM
QR402
FFC501 7 FP501 AMP_PON POWER CONTROL
VOLTAGE IN REGULATOR
GND
2
IC403 C0CBADG00023
JW901 1 JW901 2
P901 P901
3
TO CONTROL BLOCK DIAGRAM
FFC501 FP501 11
1 OUT
VOLTAGE IN REGULATOR
GND
2
IC404 C0EBL0000070
3
MAIN P.C.B
RF-U300EG MAIN BLOCK DIAGRAM