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A

SCHEMATIC DIAGRAM - 1

MAIN CIRCUIT
L12 G0C2R2JA0019 R58 10K C65 0.01 C64 0.01 R60 560 R59 10K C61 100 C63 2P C62 1P

: + B SIGNAL LINE

: FM SIGNAL LINE

B

C31 7P C5 68P L4 G2ZZ00000041 L6 G2ZZ00000031 C9 7P R3 4.7K R1 L3 G2ZZ00000031 10K

1 TL

Q13 2SC393100L
SWITCH R61 22K

C56 6P

D5 MA2J11100L

R18 10K

C
R65 220

3 T3 G2BEC0000040 IFT 4

2

1 R55 1K R56 8.2K C60 1000P

R10 0 D2 B0CDBB000028

C53 1000P 3

TU_CE TU_CL TU_DA ASP_SCL ASP_SDA

FP501
1 TUN_CE 2 TUN_CL 3 TUN_DA 4 ASP_SCL 5 ASP_SDA 6 MUTE_A 7 AMP_PON 8 AC_DC 9 PDET 10 TUN_PON 11 VCC_DET 12 TUNER3V 13 +5V 14 BUP3.3V 15 STBY3.3V 16 VREF17 RDS_VSS 18 RDS_GND 19 RDS_MPXIN 20 AUDIO_IN 21 AUDIO_OUT 22 LED_GND

6 CF1 J0B1075A0149 1 2 3 R64 100 C57 0.01

Q12 2SC393100L
SWITCH

D4 B0CDBB000028

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1

2

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2

MUTE_A AMP_PON AC_DC PDET TUN_PON VCC_DET TUNER3V +5V BUP3.3V STBY3.3V VREFRDS_VSS L9 G2ZZ00000026 RDS_GND RDS_MPXIN

R62 150

R2 R57 6.8K 100K R4 100K C4 1000P C2 7P C7 0.01 1000P C3

R16 10K C22 1000P R17 10K

D Q9 2SD1819A0L
SWITCH C47 1000P

C23 1000P

IC1 C1BB00001070
TUNER 1 2 3
FM_RF OUT TV_RF OUT RF_VCC

C19 0.01

TO CONTROL CIRCUIT (FFC501) IN SCHEMATIC DIAGRAM - 3

R41 390 R42 C45 330K 1000P

C48 0.022

CF2 J0B1075A0149 1 2

FM_RFIN

30 29 28 27 26 25 24 23 22 21 20

L7 G2ZZ00000027 R12 100

C21 8P

Q8 B1ABCF000020
FM IF AMP R43 68 C46 0.01

GND

L9 R13 10

6V470

C20

3.3M

R45 560

0.022

C18

R36

R44 330

R52 4.7K

R47

0

5 6 7

FMIFIN

FM/TV OSC AM_OSC

C34 0.01

E

3

C17 25V4.7

C16 0.01

MIXOUT

LED_GND C52 1000P

4

AGC

AM_IN

C26

0.033

H

VCC AM IFIN QUAD DETOUT

R38 56

CE

C59 0.01

X1 8 J0B1075A0128 9 R37 0 11 12 13 14 10

CLOCK

Q2 2SD1819A0L
L10 G0C101KA0029 SWITCH

C33 0.033 R29 C35 1K 25V4.7

R21 22K

R22 3.3K

DATA PLL VCC Do OUT2 (ATT2) OUT1 (ATT1) PLLGND

C25

C24 0.1

F

Q1 B1ADCF000063
SWITCH

C29 330P 0.01 R20 3.3K C32 0.01

MPXIN

LPF1

R26 19 C28 18 17 16 R27 0.022

47K 10K

C41 3300P R32 6.8K

Q4 2SD1819A0L
SWITCH

LPF2

L-ch

C43 10V100

R-ch

R810 0

B
C36 100P C37 100P TU_CL

R24 10

C101 0.015 5 TP C117 0.1

15

XO

XI

G

6 TP

TO MAIN SECTION (2/2)

TU_DA

C39

X2 75KHz H0A750200021

C40 12P

15P

C38 R31 C42

100P 47K 16V10 TU_CE

D
TUNER3.3V

C A

H
RDS 6mA

RDS_VSS RDS_MPXIN 1/2 2/2

RF-U300EG MAIN CIRCUIT
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SCHEMATIC DIAGRAM - 2
H

A
: + B SIGNAL LINE
+5V

MAIN CIRCUIT
VREFSTBY3.3V BUP3.3V RDS_GND TUNER3V

: MAIN SIGNAL LINE
AMP_PON TUN_PON

: FM SIGNAL LINE
ASP_SDA ASP_SCL PDET AC_DC MUTE_A

R302 330K

R104 2.2K

C109 4700P C108 0.1 R105 15K

0.047

R301 R313 12 10

C106 0.22

C107

R303 330K

B
C306 R305 16V10 33K R304 2.2K

C301 50V0.33

3300P

C105

R103 390K 22 TNF2 21 BNF2 20 BOUT2 19 BNF1 18 BOUT1 17 OUT1

TNF1

OUT2

DS2

VCC

6.3V220

IC301

SOUND PROCESSOR IC

FILTER

C303

IC301 C1BB00000496

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13 SC

Q101 2SD1819A0L
MUTING SWITCH

Q101
R111 15K R107 3.3K

C1IN

C2IN

VIN1

VIN2

A1IN

A2IN

B1IN

B2IN

GND

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2

3 C104 50V2.2

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C

1000P

C302 16V47

C103

C111 0.22 6 5 4 R_IN NC L_IN 7 RIPPLE 8 FILTER C307 16V47

C112 470P

A

R101

15K

R102

5.6K 2 1 VSS VOUT VIN

PRE_GND P.P 9

C308 16V10

13

IC302

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IC302 C0AAAA000036
POWER AMPLIFIER IC

D

IC404 C0EBL0000070
REGULATOR IC

3 3 2 1 NC NC 10

Q404 B1ACND000003
SUPPLY SWITCH R410 47K D405 B0BA9R600002 C414 50V2.2 C413 0.1

STBY

VCC 12

C113 10V470

R306 4.7K

R_OUT L_OUT 11

C309 1000P

IC403 C0CBADG00023
REGULATOR IC

1.2K

R414 1K

E JK302 EARPHONE

R408 4.7K

R413

2 3 1

SWITCH (FOR TUNER 3.3V) C410 1 C412 1 D407 B0AACK000004 R401 330 D401 R402 4.7K B0AACK000004 D408 B0AACK000004 R406 4.7K C411 10V100

Q403 B1ACND000003

QR402 UNR521F00L Q403
R407 47K

350mA

OUT GND 3 2

IN 1

R109 100

P301
1 SPL_OUT C416 16V1000 C415 0.01 2 GND

C

TUNER3.3V C404 6V47

SPEAKER

F

B

REGULATOR

R403 22K

TO MAIN SECTION (1/2)

C402 50V2.2

CONTROL SWITCH (TUNER)

R415

Q401 2SD1819A0L

QR401 UNR521F00L

C417 16V47

R405 10K

R416 150K

VREF1

D406 MAZ40270LF

Q402 B1ADCF000063
REGULATOR

R404

C403

100K

0.01

1K

RDSGND1 TUNERGND1

IC402 C0CBCBC00102
REGULATOR 4 D402 B0AACK000004 D403 B0AACK000004 5 OUT IN 1 C401 6V220 C408 6V100 C406 GND 2 CE 3

G JW901
1 ACDET 2 VCC 3 GND

L401 G0A200D00002 L402 G0A200D00002

TO POWER CIRCUIT (P901) IN SCHEMATIC DIAGRAM - 5

C409 1

1

H
D
1/2 2/2

RF-U300EG MAIN CIRCUIT
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