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2715 Spectrum Analyzer Service Manual
9-2
1.85
GHZ*
Atten
A18
P250
P100 P150
W7
P210
RF
Input
P/O
Front Panel
Low
Pass
Filter
P150
W4
P350
RF
RF
Input
1st
Converter
1st Mixer
Assembly
P300
4.5
GHZ
W30
Low Pass
Filter
W31
LO
P130
W8
2.11
GHZ
Band Pass
Filter
Locked
2nd LO
RF
Mother
A14
P670
W10
P100
P190
J1
J2
VR
A13
P150
P100
P620
RF Option
A23
J4
P190
P260
Log
A7
1 2
3
Jack
Earphone
Speaker
J102
P190
Micro
Processor
A10
W16
Display
Storage
A9
Digital
Options
A1 1
P550
P550
W56 (RS232)
J104
P195P180
Front
Panel
A6
P200
W35
Reference
Oscillator
A21
Rear Panel
Controls &
Connector
1st LO
Interface
1st LO Assy
(Yig Oscillator)
1st
LO
Buffer
1st LO
Buffer
Amp Assy
A12A2
HFVCO
A12A3
LFVCO
Phase
Lock/CFC
V1
CRT
A15
Power
Supply
W42
W36
W37
W58
P430
P100
P100
P380
P100
P130
P540
P140
P240
P460
P140
P130
P1 10
P180
P180 P110
J3 J2
J750
Sweep
A5
P3
W29
P1 10
P130
P140
J550
Phase
Lock Assembly
Phase Lock Assembly
P480
FL17
FL18
A19
A17
A16
Future
Option
9KHz--
1.8GHz
FL16
W24
2.11GHZ
J14
P450P565
RF Mother Board
Assembly
J13
Future
Option
W48
W47
W14
W13
10
W26P550
P185
50
P/O
A1 1
IF Gate
Count
W45
100MHz --4dBm
W22 2.1 1--3.91GHz
W44 Strobe
Phase/Beat
W27
6
P300
P230
W38
W4616
10 10
3
W43
OSC Ref 100MHz--4dBm
J290
P2
W2
15
W1
2
W41
P160
IF Count
10W54
W25
To Rear Panel
if Option 15 is
Installed
P346
10MHZ
--20dBm
W12
P550
From A15
Power Supply
From A15
Power Supply
20
2.11--3.91GHz
LS103
10
20
10
W28
100MHz
10
A12A1
Video
Demod
A28
W61
W57 (GPIB)
W5
110MHzW62
W3
From Rear
Panel
J103 Pin 10
W59 W60
10MHz
--20dBm
110MHz
W6
OPT 50/75
9KHz--2.15GHz
*2.2GHZ FOR
OPT 50/75
Figure 1-1: Interconnect Diagram, Part 1