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2715 Spectrum Analyzer Service Manual
C312
10uF
10uF
C310
U811
OP07
R812
39.2k
---8.5V
+8.5V
Z
INH
X0
X1
Y0
Z1
Y1
Z0
X
Y
C
B
A
U830
10uF
C322
---8.5V
U820
OP07
C321
10uF
100
R320
+8.5V
R816
2.34k
R331
3.39k
1k
R330
U821
OP07
C825
100
R820
56.2k
R822
4k
1.8k
R821
C824
100
100
R823
V+
V---
HA5002
C812
100
R813
1.00k
68.1
R313
68.1
R311
40k
R323
R324
15.0k
C826
0.1
---8.5V
68.1
R928
C421
10uF
68.1
R927
10uF
C420
+8.5V
---8.5V
+8.5V
L802
82uH
L814
82uH
C314
10uF
10uF
C300
R922
14.3k
C930
0.1
U920
OP07
*
R923
2.00k
R913
R912
4k
100
R915
100
R916
10uF
C410
U910
OP07
---8.5V
C411
10uF
+8.5V
C914
100
1M
R917
R937
39.2k
47.5k
R938
---8.5V
---8.5V
10.0k
R801
R901
100k
R936
27.4k
22.1k
R939
+8.5V
R716
100k
47.5k
R701
9.1V
15.0k
R702
+15V
+15V
9.1V
R903
100k
D113
Q910
R904
100k
D113
Q911
13
R900
R926
1.5k
---8.5V
C422
10uF
U921
OP07
10uF
C520
475
R948
VN0106
Q920
R945
1M
100k
R944
+8.5V
---8.5V
U544A
MC1458
+8.5V
IRF511
Q521
R947
182
332k
R929
475
R946
*
R547
*
R546
R542
10.0k
R541
*
---8.5V
100
R942
+8.5V
332k
R530
30
R905
1.76k
R815
R545
*
7.68k
R925
R335
100
R332
100
C334
0.1
C333
0.1
C943
0.1
C942
0.1
R930
10.0k
U544B
MC1458
+15V
R543
1.5k
C929
0.1
--- 5VREF--- 5VREF
--- 5VREF
---7.2V
+7.2V
--- 5VREF
Q930
3904
Q703
3904
Q931
3906
Q800
3906
*
R899
10K
10K
10K
10K
D
C
B
A
21 3 4 65
* Option ResistorValues
STD.LOC.
R923
R899 Empty
3.2K 3.74K
80.6
R547
R546
R545
R541 2.74K
15.0K
82.5K
5.62K
Opt 50/75
4.75K
24.9K
Not Installed
10K
3
6
716 8
OFFSET
MAIN COIL
FM SWP GAIN
MAIN SWP GAIN
CW
CW
FM CFGAIN
CW
CW
R931
R827
R920
7
2
1
5
48
U810
R918
P_FM\I
MM
DEGAUSS\I
VCFC_FM\I
MAIN_OFFSET\I
---8.5V2
+8.5V2
VSWP_PLL\I
SWP_FM*\I
SWP_MAIN*\I
---8.5V2
+8.5V2
PLLCON*\I
SWSLOPE\I
P_MAIN_COIL\I
N_FM\I
N_MAIN_COIL\I
M
M
M
6
3
2
1
8
4
7
M
FM
FM
1
8
4
7
2
3
6
FM
4
15
14
6
9
10
11
3
5
1
2
13
12
4053
M
FM
FM
FM
1
8
4
7
2
3
6
4
8
3
2
1
M
1
8
4
7
2
3
6
M
M
7
5
6
8
4
FM
M
6
3
2
7
4
8
1
M
M
FM
6
3
2
7
4
8
1
FM
FM
FM
FM
FM
FM
VR803
VR902
M
6D6<1B4>
3A3>
2C5>
4C6>
4B6>
2D2>
2D2>
2A5>
6C1<
6D6<
6D6<
6D6<
R943
100
R551
10
5
A12A1
PHASELOCK CFC
M
R898
320