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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