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SCHEMATIC DIAGRAM - 3
: +B SIGNAL LINE : FM/AM SIGNAL LINE : FM SIGNAL LINE : FM OSC SIGNAL LINE : AM SIGNAL LINE : AM OSC SIGNAL LINE
TUNER/MAIN CIRCUIT
TUNER PACK Z120 2SK544F-AC RF AMP D 1.2u 680K 3.3P G 2 100K GND 2 S 100K 180P 1000P 390 B1AAAC000011 FM MIXER 2.2P 0.47u 7 CF201 J0B1075A0061 1 2 3 C104 1000P R105 470 R106 470K R101 0 2 Q101 Q101 2SC2058SPTA FM IF AMP C103 0.01 R107 330 R104 1K CF202 J0B1075A0061 1 3
Q106
FM EXT ANT 1 75 OHM
5.6P 1
18P
1000P 6 R103 270
3 100K 390 3 AM LOOP ANT AM EXT ANT JK101 4 5 2.7K 4.7P 3.3P 4 390 220 560K C101 0.01 C102 16V10 R121 22K
Q106
KRA102MTA
C120 16V10 TUNER 15V SUPPLY SWITCH
B1AAAD000013 BUFFER AMP LOCAL OSC 680K 2.2P
5.6P 8 C119 680P R120 47K
R143 C138 22K 0.01 C139 50V4.7 C144 4700 C131 150P R123 C118 68K 0.01 C137 3300P C117 0.01 R146 100K R142 6.8K
L102 RLQB1R0KTD-D
AM ANT COIL 2 4 5 1 9 8 7 6 AM OSC COIL Z101 RLA2Z007-T
C115 50V4.7
R102 4.7K
3
C136 1000P
C114 50V3.3
C109 1000P
C116 0.033
C142 50V1 R141 6.8K C141 50V1 R145 100K
OSC OUT
AM RF IN
OSC
RCH
AFC
AGC
AM OUT
PILOT IN
DET OUT
MPX IN
PILOT OUT
LCH
R119 3.3K R112 100K C108 8P
R118 3.3K
24
23
22
21
20
19
18
17
16
15
14
13 C143 4700
AM MIX OUT
R110 1K
C107 0.047
IC101
FM/AM 11 MONO 12
FM IF IN
AM IF IN
FM DET
IC101
1
2
3
4
5
6
7
8
9
10
LA1833NMNTLM
FM/AM IF AMP DET/AM OSC MIX/ FM MPX
R126 1K
R124 X102 RLFDFT22DD 33
3 2 1 4
R127 470
C122 50V1
C148 0.01
C121 50V4.7...GC 50V0.47...GN R144 120 R131 120 R133 1K
R125 470
C127 16V22
C126 1
C106 0.01
C147 1000P
STRQ
GND
REG
VCC
SD
ST
Z102 RLI2Z021M-T R111 390
5
6
D101 UDZSTE175R1B
C130 6.3V100
C132 1000P
R151 C113 82 1000P
R113 10K C125 16V22 C111 50V4.7
R117 R129 27K 47K
R128 82
C129 6.3V100
C149 0.1
R114 5.6K
C124 100P R132 10K
R115 560 C133 27P C112 0.01 R116 1K
H0H720400005
20 XOUT
19 VSS
18 AOUT
17 AIN
16 PD
15 VDD
14 FMIN
13 AMIN
12 MONO
11 IFIN
X103
C110 0.01
PLL FREQUENCY SYNTHESIZER STRQ SDC XIN DO AM FM LW CE CL DI
IC102 LC72131MDTRM
R122 2.7K
TGND 15V DET_OUT DO/ST SD +7.5V 1A
C123 50V1
R152 0
1
2
3
4
5
6
7
8
9
10
TO MAIN CIRCUIT (2A) ON SCHEMATIC DIAGRAM-6
1K
R138 3.3K
1K
1K
470
C134 27P
RCH R135 R137 R136 R134 CE LCH DO/ST PLLDA DO/ST PLLCLK 1B
PLLDA
PLLCLK
DO/ST
R130 10K CE
SD
TO MAIN CIRCUIT (2B) ON SCHEMATIC DIAGRAM-6