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GND
AM LOOP ANT
AM EXT ANT FM EXT ANT 75 1 4 3
JK101
L101...GC 2
L102
1 2
C110 0.01 4 2 3 1 5 R110 1K
R152 0 R114 5.6K AM ANT COIL Z101 RLA2Z007-T 9 C107 0.047 2.7K 100K 3 5.6P 8
L101 RLQBR39KTD-D...GC L102 RLQBR39KTD-D...GC RLQB1R0KTD-D...GN
IC102 R112 100K G 100K C112 0.01 7 IC101 S 2.2P C108 8P FM/AM IF AMP DET/AM OSC MIX/ FM MPX 0.001 C136 1000P AM OSC COIL C132 1000P D101 UDZSTE175R1B 4.7P 5 4 6 220
C134 27P
C133 27P
R130 10K
R138 3.3K
D
SCHEMATIC DIAGRAM - 3
MAIN/TUNER CIRCUIT
PLL FREQUENCY SYNTHESIZER 2SK544 RF AMP
LC72131MDTRM LA1833NMNTLM
C125 16V22 100K C127 16V22 C109 3.3K C114 1000P 50V3.3 R118 C126 10 180P 560K 1.2u 2.2P C130 6.3V100 R113 10K C111 50V4.7 R116 1K 820K 2.2P 3.3P 10P R115 560 R111 390 R119 3.3K 1 2 2SC2786M FM MIXER 390 2SC1675L1L2 BUFFER AMP LOCAL OSC
1 24
X103 RSXC7M20S05T
20
1
XIN
XOUT
CE
19
TUNER PACK Z120 (RAL0029)
2
CE
VSS
R137 1K
PLLDA
18
3
DI
AOUT
R136 1K
PLLCK
17
4
CL
AIN
: +B SIGNAL LINE : FM/AM SIGNAL LINE
R135 1K
DO/ST
16
5
DO
PD
IC102
R134 470
FM IF IN OSC OUT
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
680K
0.001
Z102 RLI2Z021M-T 5
7
SWA
FMIN
R151 82
2 23 AM MIX OUT OSC
13
8 3 22 REG AFC AM RF IN
SWB
AMIN
0.47u
10P
390
390
12
9
STRQ
MONO
8
7
6
3
C113 1000P R129 27K
21 4 AM RF IN GND
C102 16V10
10
11
FM
IFIN
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
C101 0.01
R132 10K C148 0.01 C147 1000P R124 33 X102 RLFDFT22DD
7
SD
AM OUT ST
2
IC101
R126 1K
DET OUT 8 FM DET
C116 0.033
18 17
R120 47K C119 680P R121 22K R102 4.7K
PILOT IN 9 VCC 10 STRQ 11 MPX IN PILOT OUT 16
R103 270
: FM SIGNAL LINE : FM OSC SIGNAL LINE
C139 50V4.7
SD
C103 0.01
R105 470
R143 22K
DO/ST
R107 330 CF201 RLFFETWND01M C104 R106 1000P 470K 1 3
R125 470 R127 470 R122 2.7K R131 68 C149 C129 6.3V100 0.1 R128 82 C121 50V0.47 C123 50V1
C131 150P
0V (0V) <0.7V>
C138 0.01
C120 16V10
15 14 RCH FM/AM
R123 68K C137 3300P C118 0.01 C122 50V1
12 13 MONO LCH
0V (0V) <11.5V>
0V (0V) <0V>
R104 1K
Q101
2
<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
Q101
CF202 RLFFETWND01M 1 3
FM IF AMP
C142 R142 50V1 6.8K
C117 R146 0.01 100K
C141 R141 50V1 6.8K R145 100K
2SC2058SPTA
: AM SIGNAL LINE : AM OSC SIGNAL LINE
Q106 KRA102MTA
POWER SUPPLY CONTROL (FM : ON)
C143 4700P
0V (0V) <13.5V>
C144 4700P
13.6V (13.6V) <0V>
13.6V (13.6V) <13.6V>
RCH
CE
LCH
TUNGND 15V DO/ST SD
PLLDA DO/ST PLLCK
+7.5V MUTEA
2A
1A
TO MAIN CIRCUIT (2B) ON SCHEMATIC DIAGRAM-4
TO MAIN CIRCUIT (1B) ON SCHEMATIC DIAGRAM-4