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GND
AM EXT ANT FM EXT ANT 75 AM LOOP ANT JK101 1 3 4 2
L102 RLQBR39KTD-D
1
4 3 2
5
1 2
C110 0.01 R110 1K
R152 0 R114 5.6K 22P 15P 0.47uH 100K 33K 18P 47P 2.7K 1P HVM27 AM ANT COIL
Z101 RLA2Z007-T 9
C107 0.047 3 8 HVM27 100K G S 3P
IC102 0.022 R112 100K C112 0.01 7 IC101 C108 8P FM/AM IF AMP DET/AM OSC MIX/ FM MPX C136 1000P 7P AM OSC COIL 100K HVM27 33K 33K 4P 330 8P HVM27 22P 1P 33P 10K220 1.2K R119 12K 1 2 0.022 470K 330 15P 8 150 220P 1uH 8P 5 4 6 0.022 G D S
8P
C134 27P
R138 3.3K
C133 27P
R130 10K
D
SCHEMATIC DIAGRAM - 3
MAIN/TUNER CIRCUIT
PLL FREQUENCY SYNTHESIZER 22
LC72131MDTRM LA1833NMNTLM
C125 16V22 C132 C130 1000P 6.3V100 D101 UDZSTE175R1B C127 16V22 10K C126 1 4P R118 C109 3.3K C114 1000P 50V3.3 R113 10K C111 50V4.7 R116 1K R115 560 R111 390 10K 2P 18P 100uF 16V IFT
1 24 FM IF IN OSC OUT
X103 RSXC7M20S05T
20
1
XIN
XOUT
R137 1K
19
2
TUNER PACK Z120 (EN17290G1Y)
CE
CE
VSS
18
3
PLLDA
DI
AOUT
R136 1K
17
4
PLLCK
CL
AIN
R135 1K
16
5
DO/ST
DO
PD
: +B SIGNAL LINE
IC102
POWER SUPPLY CONTROL (FM : ON)
R134 470 R151 82
2 23 AM MIX OUT OSC
15
6
<2.6V> (2.61V) ((2.61V)) 2.62V <0.55V> (0.55V) ((0.77V)) 0.55V <0.02V> (0.02V) ((0.23V)) 0.02V <0.02V> (0.02V) ((4.75V)) 0.02V <5.15V> (5.16V) ((5.03V)) 5.16V <5.01V> (0.18V) ((5.19V)) 5.19V
AM
VDD
14
Q106
KRA102MTA
Z102 5 RLI2Z021M-T
7
SWA
FMIN
13
8
SWB
AMIN
0.022 6
7
STRQ
MONO
C113 1000P
3 22 REG AFC AM RF IN
12
C102 16V10
9
3
FM AM RF IN GND
IFIN
R129 27K
4
21
10
11
6
R117 47K C106 0.01 C124 100P
5
R133 1K 4
6
<4.66V> (4.98V) ((4.83V)) 4.83V <0.02V> (0.02V) ((4.43V)) 4.43V <0.05V> (12.3V) ((12.31V)) 12.25V
<2.59V> (2.6V) ((2.6V)) 2.6V <0V> (0V) ((0V)) 0V <5.64V> (1.84V) ((12.33V)) 12.26V <0.81V> (0.9V) ((0V)) 0V <0.81V> (0.9V) ((0V)) 0V <1.15V> (5.16V) ((5.16V)) 5.17V <2.58V> (0V) ((0V)) 0V <0V> (2.49V) ((2.59V)) 2.59V <0V> (0V) ((0V)) 0V <0V> (0V) ((0V)) 0V
AGC
C115 50V4.7
20 19
2 C101 0.01
R139 22K
Q101
FM IF AMP
IC101
SD
R132 10K C148 0.01 C147 1000P
7
AM OUT ST
2SC2058SPTA
R126 1K
R103 270
DET OUT 8 FM DET
C116 0.033
18 17 PILOT IN 9 VCC 10 STRQ 11 MPX IN PILOT OUT
R120 47K C119 680P C139 50V4.7 R102 4.7K
16
R105 470
: FM SIGNAL LINE : FM OSC SIGNAL LINE
C103 0.01 R107 330 CF201 RLFFETWND01M C104 R106 1000P 470K 1 3
R121 22K R143 22K
SD R124 33 X102 RLFDFT22DD
0V (0V) <0.7V>
DO/ST
0V
Q101 (0V) <11.5V>
R125 470 R127 470 R122 2.7K R131 68 C149 C129 6.3V100 0.1 R128 82 C121 50V0.47 C123 50V1
0V (0V) <0V>
C120 16V10 C138 0.01
15 14 RCH FM/AM
C131 150P R123 68K C137 3300P C118 0.01 C122 50V1
12 13 MONO LCH
Q110
0V (0V) <0.7V> 0V (0V) <0V>
<2.08V> (2.07V) ((2.09V)) 2.09V <6.1V> (6.42V) ((6.27V)) 6.28V <2.08V> (2.07V) ((2.07V)) 2.08V <2.06V> (2.06V) ((2.08V)) 2.07V <0V> (0V) ((0V)) 0V <5.15V> (5.14V) ((4.22V)) 5.12V <5.15V> (5.16V) ((5V)) 5.16V <3.97V> (5.15V) ((4.13V)) 4.12V <6.1V> (6.43V) ((6.17V)) 6.27V <0.02V> (0.02V) ((3.68V)) 3.68V <5.01V> (1.32V) ((5.19V)) 5.19V <3.66V> (4.55V) ((3.76V)) 3.72V
<4.68V> (5.01V) ((4.85V)) 4.85V <6.11V> (6.42V) ((6.27V)) 6.27V <2.42V> (2.06V) ((2.46V)) 2.46V <2.42V> (2.06V) ((2.46V)) 2.46V <0.16V> (0.75V) ((0.25V)) 0.25V <2.02V> (1.25V) ((2.02V)) 1.86V <2.39V> (1.56V) ((2.36V)) 2.36V <2.06V> (2.06V) ((2.07V)) 2.07V <2.07V> (2.07V) ((2.08V)) 2.08V <2V> (2.01V) ((2.02V)) 2.02V <1.7V> (1.75V) ((1.76V)) 1.76V <1.69V> (1.76V) ((1.78V)) 1.77V
R140 22K
0V(0V)<11.5V>
C142 R142 50V1 6.8K C141 R141 50V1 6.8K R145 100K
CF202 RLFFETWND01M 1 3
C117 R146 0.01 100K
R104 1K
2
: AM SIGNAL LINE : AM OSC SIGNAL LINE
: FM/AM SIGNAL LINE
2SC3311ARTA
DC DETECT SWITCH
C143 6800P
Q110
0V (0V) <13.5V>
C144 4700P
13.6V (13.6V) <0V>
Q106
13.6V (13.6V) <13.6V>
RCH
CE
LCH
TUNGND 15V DO/ST SD
PLLDA DO/ST PLLCK
+7.5V DET_OUT
2A
1A
TO MAIN CIRCUIT (2B) ON SCHEMATIC DIAGRAM-4
TO MAIN CIRCUIT (1B) ON SCHEMATIC DIAGRAM-4