Rx2 Mix - Samyung SI-30 Service Manual

8-4 RX2 MIX

1
D
C
TP251
LOOP Filter
R64
2K7
VT_RX2
C219
C464 C143
33n
220n 2n2
C145
R233
100n
1K2
TP24
C97
1u
B
A
1
2
R260 C342
0R 1n
7
RX2_FE
+6V_RX2
R292 VCO 110 - 118MHz
TP87 10K
TR12 TP9
1
BC846B
C87
22/16(T)
R128
47R
TP88
TP86
L67 C308 C4
100nH
C301
L44
820nH 15p 2-6pF
15p
C422
5p6 R32
D8 D13 6K8
C419
JDV2508S JDV2508S
4p7
2
3
-3dB
F12
MA04627
MX2
R189
ADE-1HW
18R
2 3 RF
C343
0V
1n
R89 R90
330R 330R
TP249
+6V_RX2
TP89
R288
10R
C248 R9
10n 68R
C379
1n
C380 TP90
10n
L66
C57
820nH
L20
1u
100nH
R232
R27 C374
2K2
680R 10n
TR37
R224
BC846B
220R
TP272
1
C136 R337
220p 0R C442
C319
15p
1
100p
TR38
BC846B
R225 L27 R38
C166
150R 47nH 820R
270p
R103
3R3
R70
C373
68R
1n
R78
33R
LO_RX2_FB
3
4
+5V_RX2
TP92
R216
10R
L53
R133
Mixer and IF C210 C260 470nH
680R
4n7 100n
TP8
C406
R145
L3
10n
330R
270nH
2
IF
TP285
C202
R365 R120
39P C161
L2
1K 47R
TR28 100p
1
220nH
BFR520
R66
R366 C196 R142
C201
330R
47R 3p9 12R
47P
+6V_RX2
VCO Buffer TP91 R217
22R
TP268
C249
L85
10n
R320 100nH
C171
390R
47p
C366
C190
1n
1n
R176 L99
TP273
C18 330R 68nH
C294
33p
R336
33p
TR29
1
BC846B
OR
L23 L93
47nH 100nH
R250
10R
R28
330R
TP11
+6V
R291
47R
L73
BLM41P800S
C280
100n
TP12
+5V
L74
BLM41P800S
C278
100n
4
D
C321
18p
IF_RX2
R380
1K
C
R381
47R
R276
0R
R58 R57
270R 270R
B
+6V_RX2
C14
22/16(T)
+5V_RX2
C13
22/16(T)
A